HIGH-VOLTAGE SWITCH-HOUSE
Vol. CXXXIX. No. 3588 A U G U ST 30, 1946 9d. W E E K L Y 2 E l e c t r ic a l R e v ie w August 30, 1946
CANTERBURY CATHEDRAL Commenced in 1070 by Arc!.bishop Lanfranc. It con tains relics of the murdered Thomas a Becket. and the tomb of the Black Prince
GRYSE
MADE IN ENGLAN D
F I FTY YEARS OF QUALITY & SERVICE t e d BIRMINGHAM BURY ST EDMUNDS LEEDS LONDON BRIGHTON CARDIFF LEICESTER MANCHESTER BRISTOL GLASGOW LIVERPOOL NEWCASTLE
CRYSELCO LIMITED, KEMPSTON WORKS, BEDFORD August 30, 1946 E l e c t r ic a l R e v ie w
96-TON STATOR FOR A PARSONS 33,000-VOLT TURBO-ALTERNATOR BEING UNLOADED FROM THE FREIGHTER “ CITY OF BARCELONA” AT TABLE BAY HARBOUR, SOUTH AFRICA
C. A. PARSONS & C? LTD HEATON WORKS, N E WC ASTL E U PO N TY N E 6 LONDON OFFICE: 56 VICTORIA STREET, S.W.I August 30, 1946 4 E l e c t r ic a l R e v ie w
M l
ROTHmiLL CABLE INSULATING PAPER AUCHMUTY S LONDON MANCHESTER BIRMINGHAM b w I » - 116 SCOTLAND E.C.4 C orp oration'stre«t Colmore Row 5 August 30, 1946 E ie c t r ic a l R e v ie w / Designed to with stand frequent and ar duous service in indus try, the BTH Timer has two ranges, namely from 5 seconds to 5 minutes (in 5 sec. steps) and 20 seconds to 20 minutes (in 20 sec. steps). It is controlled by any form of pilot switch or push button and will give lasting,trouble-free service. r Write for list No. 5642-5 1 ■___ r u g b y ÀBTH I August 30, 1946 6 E l e c t r ic a l R e v ie w ★ things you can do with the PREMIER PYLON * PUT IT ON CIRCUIT AND LEAVE As a test, Premier Pylon Kettles, IT FOR A WEEK, A MONTH OR withoutwater, have been on cir AN INDEFINITE PERIOD cuit for no less than 5,000 * SWITCH IT ON WITHOUT WATER continuous hours, during which ★ ALLOW IT TO BOIL DRY AGAIN time the safety device has op A N D A G A IN erated over 100,000 times. ★ AFTER ALL THIS THE KETTLE WILL After all this the kettles con BOIL AS USUAL ON BEING FILLED W IT H W A T E R tinued to work normally. FOR A.C. CIRCUITS ONLY PREMIER ELECTRIC HEATERS LTD., BIRMING w . u ______9 August 30, 1946 E l e c t r ic a l R e v ie w 7 N o t a n e w SECREf/VllEAPON bu t th e terminal of a Sturtevant Pneumatic Message Tube Installation in use at a factory where saving of time and reliability of a mechanical messenger service are recognised essentials to an efficient establishment. Sturtevant Pneumatic Message Tubes handle letters, orders, drawings, despatch notes, small tools, and other small articles, and send them at a high speed at any moment of the day between points up to one mile or more apart, such as from central office to works, stores, receiving and despatch departments and other sections. Can you save time, labour and money in your business 1 Our publications U.I902 and U.I904 describe and illustrate the system. S t u r t e v a n t engineering Co . L t d . 2 5 .W o r c e s t e r Ro a d , S u t t o n .S u r r e y . E l e c t r i c a l R e v ie w August 30, 1946 ill// / , // CONDUIT TUBE METALLIC SEAMLESS TUBE CO. LTD., LUDGATE HILL, BIRMINGHAM Phone: CEN 7167. Crams : " Flask," Birmingham. Sales Depots London : 8S Goswell Road E C 1 Newcastle- on-Tyne : St. John Street. Leeds : 5 York Place. Swansea: 1 Grove Place. Glasgow : n ia St. Vincent Street MS. 1 August 30, 1946 Electrical Review Our products for the Radio Industry range from the tallest steel radio towers to o.ooi fxF capacitors. If you’re not inter ested in monsters or midgets we make a lot of other things besides, including every type of PRODUCTS cable and wire used in radio work. You get the benefit of 60 odd years research and man ufacturing experience when you specify B. I. Callender’s. BRITISH INSULATED CALLENDER’S CABLES LIMITED NORFOLK HOUSE, NORFOLK STREET, LONDON W.C.2 |0 E lectrical Review August 30, 1946 SELf - LUBRICATING B R O X1 Z 1 B E A R I N G S Contain sufficient lubricant to meet wide variations of speed and load over protracted periods of actual service. The accuracy of the finished dimensions can be maintained to closer tolerances than possible with machined bearings. THE MANGANESE BRONZE &BRASS CO. I l l) HANOEORD W ORKS, IP S W IC H telephoneipsw.ch 2127 telecrams "bronze ioswich August 30, 1946 E l e c t r ic a l R e v ie w 11 E E FERRANTI FERRANTI LIMITED HOLLINW OOD - LANCS London OFFice KERN HOUSE • KINGSW AY • W.C. 2 meters 1 2 E l e c t r ic a l R e v ie w August 30, 1946 OIL-PROOF PETROL-PROOF NON-AGEING NON-INFLAMMABLE OR M i M l i (QW) LIKE A BATTLESHIP- BUILT TO TAKE IT Study these special ALKLUM features : ★ All-Steel welded container. ★ Active material enclosed in perforated steel pockets. ★ Alkaline electrolyte does not damage any component part of the battery. 'k Freedom from deterioration when not in use. ★ Simple to operate and inex pensive to maintain, Complete equipments of separate unit or self-contained cubicle type, including Battery rectifier, automatic gear and all details. Special equipments for use with supervisory control gear. Send your enquiries to the Switchgear Battery Specialists— Britannia Batteries Ltd.. 46 Victoria Street. London, S.W .I A70/46A August 30, 1946 E l e c t r ic a l R e v ie w 13 FUEL ECONOMY.. PROTECTED efficient, silent reliable, compact power unit, giving untiring service BROOK MOTORS LTD HUDDERSFIELD ENGLAND E l e c t r ic a l R e v ie w August 30, 1946 14 August 30, 1946 E l e c t r ic a l R e v ie w 15 'esigned for service AUTOMATIC TELEPHONE EXCHANGES Including the following types in all parts of the world Trunk T.A.X. Main M.A.X. Rural R.A.X. D Y close attention to technical detail Unit U.A.X. the Company has maintained its position in the forefront of Telecom Private P.A.X. munication Engineers throughout its Private Branch P.A.B.X. long experience. Its products enjoy a world-wide reputation for sound design and technical excellence. MANUAL EXCHANGES of all types The Company undertakes the supply and installation of complete Auto- maticand ManualTelephone Exchanges CARRIER TRANSMISSION EQUIPMENT for Public and Private service. Auto matic and Manual Trunk Exchanges, all types of Telephone Cables for TELEPHONE INSTRUMENTS Trunk and Local Service, Carrier of all types Transmission Equipment and Cables, Kadio Equipments for Ships. TELEPHONE SWITCHING EQUIPMENT PROTECTIVE DEVICES RELAYS TELEPHONE CABLES, WIRES & CORDS LOADING COILS MARINE RADIO EQUIPMENT SHIPS' TELEGRAPHS & TELEPHONES CELLS & BATTERIES Dry, Fluid and Inert ★ 16 E l e c t r ic a l R e v ie w August 30, 1946 but for good seeing—indoors and out—you need BENJAMIN LIGHTING The Benjamin organisation is maintained to provide a comprehensive service dealing with every kind of industrial lighting from the production of reflectors specially suited for each purpose to their application to specific lighting problems. The Benjamin Engineer in your district will gladly help you with information or advice. BIN7AMJN i THE BENJAMIN ELECTRIC LTD • BRANTW00D WORKS • TOTTENHAM LONDON N. 17 J ^ Telegrams: “ Benjalect, Southtot, London.” Telephone: Tottenham 5252 (5 lines) A 17 August 30, 1946 E l e c t r ic a l R e v ie w Multi-way Distribution Board FOSTER TRANSFORMERS & SWITCHGEAR ltd (INCORPORATING FOSTER ENGINEERING COMPANY! SOUTH WIMBLEDON. LONDON. S.W.I9 A t August 30, 1946 18 E l e c t r ic a l R e v ie w Ellison Engineers have had considerable experience in the problems involved in starting electrically driven pumps and have designed a range of equipment to cover every requirement. They will willingly help in the choice of starting gear and demonstrate the advan tages of the Ellison range. G eorge E llison LIMITED BIRMINGHAM 22 B ENGLAND August 30, 1946 E l e c t r ic a l R e v ie w 19 It feems hardly poffible that fuch tools as thif were ufed for fcrewing in fcrews by the thoufand. Nevertheleff they were. Fo filly ! Thank goodneff we know that for repetition affembly the fenhble way is to ufe fmall power tools and fo fave time, fatigue and l.f.d. Thofe poor perfons of a paft era never knew of Defoutter Tools. How fad! Are you not forry for them? (Pleafe do not fend meffages to fay that our ufe of f ’s if miftaken. We don’t give a faufage.) OESOUTTER. Specialists in Lightweight, Pneumatic and Electric Portable Tools. DESOUTTER BROS. LTD. (DEPT. R ) T H E H Y D E. H EN D O N , LONDON, N .W .9 . T ELEPH O N E : CO LIND ALE 6346-7-8-9. C.R.C. I 6 l 2 0 E l e c t r ic a l R e v ie w August 30, 1946 VERYTHING connected with industrial rubber has our wholehearted interest. Our technical people welcome the opportunity to delve into newE and difficult problems. And into every job, from beginning to end, goes the knowledge, the skill and the experience accumulated through the years. Empire Rubber Mouldings are playing a big part in post-war production, and in connection with the Electrical Industry, where rubber is now in much greater use than ever before, our practical knowledge of Rubber and Rubber Moulding is definitely helping the march of progress. If you have a particular problem and feel that Rubber may be the answer, our Research Department will be glad to discuss the matter with you. Why not get in touch with us—right away ? EMPIRE RUBBER COMPANY DUNSTABLE, BEDS. Phone : DUNSTABLE 533 DPS E5 August 30, 1946 E l e c t r ic a l R e v ie w m a XLUM e OVERLAMP REFLECTOR LIFT, T U R N A N D L O W E R O V E R T H E LAMP Don't le t d ir t spoil y o u r Lighting Schemes INSIST ON maxLUme' OVERLAMP REFLECTORS THEY ARE EASY TO C LE A N !! ONSULT— Lighting Dept., /ERITYS LTD. « Quay Street, VSTON - B’HAM 6 MANCHESTER 3 B R A N C H E S : ONDON - BIRMINGHAM - BRIS1OL - GLASGOW NEWCASTLE-ON-TYNE August 30, 1946 2 2 E l e c t r ic a l R e v ie w 4 9 ije, tviâ expeuence More than 45 years’ experience is behind every Scott Motor, and the ability to run under extreme con ditions is one of the fundamental advantages of Scott Motors. By installing Scott Motors you are assured of constant trouble-free running. O f NORTHERN IRELAND. HUGH J. SCOTT & CO (BELFAST) LTD • VOLT WORKS • BELFAST ■ NORTHERN IRELAND. TUFNOL BALL IISULATORS TUFNOL Ball Insulators are designed for rough usage and the most arduous conditions of service. They will not break if dropped. They remain hard even when exposed to heat and are un affected by extreme cold. Their surfaces are so smooth and hard that dust and grit will not readily adhere to them. These insulators are available in three sizes : for £ ton, I ton and 2 ton working loads. An Ellison Product TUFNOLp C D a V RAOC-, LTD I N G R A M 2 3 0 163 '! You’ll be needing Power FOR THAT NEW FACTORY . . . and that’s where J. & P. come in. The site is chosen. The architects are appointed . . . and the contractors. Now there’s the question of power . . . the design of the substations . . . selection of equipment . . . so many problems. Why not leave it all to J. & P. and dodge the worries ? They not only make the equipment, they are specialists in planning and in stallation, and some of the finest plants in the Country appear in their “ Installations completed ” files . . . You’ll be in good company if you LEAVE IT ALL TO J. & P. 24 E l e c t r ic a l R e v ie w August 30, 1946 Pulley wheel to carry control cables for rudder and ailerons on Horsa glider, machined from Bakelite Laminated. BAKELITE TREFOIL /B\ \ o o J VENT-AXIA REGD. TRADE MARKS for better LAMINATED Air Conditions for hard service Bakelite Laminated combines lightness with re markable toughness. It is resistant to water, heat, acid, chemicals, oils, abrasion . ^. gives excellent electrical properties . . . and can be machined to fine limits. The tensile strength of one standard grade exceeds 18,000 lb. per square inch. Available in 40 different grades and a variety of forms including sheets up to 6 inches thick, rods, tubes and special shapes. Further information on request. BAKELITE LIMITED Pioneers in the Plastics World 18 GROSVENOR GARDENS • LONDON • S.W.I ______159 HART BATTERIES I------FOR ------1 ELICTRIC POWIR VENT-AXIA LTD., 9 V ictoria S t., L ondon, S.W .i. LIGHTING INSTALLATIONS Phone : A B B e y 5168/9 AND AT GLASGOW, MANCHESTER, BIRMINGHAM AND LEEDS B Y APPOINTMENT Accumulator Makars to H.M. Tha K in *. HART ACCUMULATOR CO. LTD. MARSMGATE UNE, STRATFORD, LONDON, E.I5. Ultphonts MARyland 1361/3 ** »K»L Oort, DoblU, O H *«. ' -ÏT»., Kotttaakaa, WmuLmc August 30, 1946 Electrical Review 25 We are Specialists in MOTOR CONTROL GEAR Send us your enquiries for \ h.p. up to 5,000 h.p. ERSKINE. HEAPsO'UTD Head Office Works : o n \ - London Office: GRAND BUILDINGS BROUGHTON, MANCHESTER 7. OWltCRgear TRAFALGAR SQUARE. W.C.2 Phone: DEAnsgate 4561 (4 lines). Phone: ABB ey 2748-9. Grams : “ Electron, Manchester.” J|/CLlUUiW Grams : “ Erskineap, Phone, London.” BRANCH OFFICES AND AGENCIES IN ALL PARTS OF THE WORLD EH .S35 2 6 E l e c t r ic a l R e v ie w August 30, 1946 I . ’ »? > 7 '/ „ , J >4 < * >./ f-1 .4 m $ i M L# #r jr • IN S U L A R ELEC TR IC L A M P W O R K S L T D ., 40/50 New Cleveland Street, Hull. Phone : 33836. ’G ram s : Insulalamt>. Hull. AT LAST! THE COMPLETE HEAVY DUTY UP-TO-DATE GUIDE TO P. & B. Insu lating Tape is e xte n siv e ly TELEPHONY used where rugged ‘toughness’ is essen tial — for motor leads, trolley poles, AND TELEGRAPHY wrapping machine cables in mines and for A a variety of purposes in shipbuilding. HANDBOOK OF LONG LIFE... Proof against water and seawater and the TE LECOM M U NICATION fumes of acid and alkalis, P. & B. Tape (Telephony and Telegraphy over Wires) retains its adhesiveness and provides per manent resistance to mechanical damage. By BERTRAM S. C O H EN , Supplied in-rolls from ¥ width upwards. O.B.E., M.I.E.E., F.Inst.P. ; W rite for samples and prices. Edited by F. G. C. BALD W IN, O.B.E., M.I.E.E, THE RUBEROID COMPANY LTD. ^3 Commonwealth House, NewOxford St. This new work is of supreme importance to London. W.C. I. Post Office engineers and all electrical engineers concerned with telephone and telegraph work, HIGH RESISTANCE and to all students of these subjects. It includes information on the latest technical develop ments, many of them based on quite recent discoveries in physics. Just Published 30/- net. I M i From booksellers or direct from P IT M A N , Parker St., Kingsway, London, W.C.2 INSULATING TAPES ARUBEROID PRODUCT August 30, 1946 E l e c t r ic a l R e v ie w 2 7 S ^ t a ^ e M ce. OAcyjj- Q. -L^e lr if A -tiSo-powKLx. ^um .-ciad&. -usLi&L - a x t , p h & d u c e A . - u s , 'C a u s e , cpiaK&iSio amcL fairncatkd -«**. s-tSiL -fe QjjwxL Mb. AUtJi crj. onxn^aAViM.- ^ A a v A f i vu^u4v —las Oit^i^meßsj s A u f t t T ' JA u o ^^catecL a. €amje. s a i H n ^ -GH flWCML- <^OuIV*> Q a s o I. g a * > 4 . -M*vja*©»ee(. ■'laSAAtowcs.--to - sA u rck p H o f W i X S t o . REYROLLE REYROLLE 300-AMPERE A.C.MOTOR DRIVEN SINGLE-OPERATOR WELDING-GENERATOR USED FOR THIS WORK HEBBURN-ON-TYNE...ENGLAND , 2 8 E l e c t r ic a l R e v ie w August 30 1946 Makers of Synthetic CO-AXIAL PLUGS AND SOCKETS (IMPREGNATED AND COATED/ W ill so lve m any of your design and installation problem s. Robust com p act — no loose parts to fu ssw ith . A lk a th e n e sealed direct to C o -a xia l Cable. W e can supply e ithe r So ckets o r Plugs moulded to cable cut to your own requirements. SOLDERING TAG INSULATING WASHER SHOULDERED WASHFR PLUG CONTACT C . S P R IN G P L U G B O D Y RETAINING SPRING C. S P R IN G SOCKET SHELL RETAINING SHOULDERS SOCKET CONTACT INNER CONDUCTOR — 1/ 022' COPPER WIRE CORE-ALKATHENE THREAD BOUND OUTER CONDUCTOR — 3RAID TINNED COPPER WIRE PROTECTIVE SHEATH - 16-17 NEW BRIDGE STREET, E.C.4 VINYL RESIN PHONE: CENTRAL 6500 PYE LIMITED RADIO WORKS CAMBRIDGE L.T.P. FOR TRANSFORMERS, CHOKES, MERCURY ARC RECTIFIERS Write for latest Technical Brochure to LONDON TRANSFORMER PRODUCTS LTD. COBBOLD ESTATE, WILLESDEN, LONDON, N.W.IO W il 6486 August 30, 1946 E l e c t r ic a l R e v ie w 29 R O M t h e world - famous Terry factory come steel clips, bronze clips, stainless clips, big clips, little clips, wide clips, narrow clips — in fact clips in every con ceivable shape and size. Illustrated here are two of our stock patterns, 8o and 8i, made in a range of sizes to grip from J in. to r| in. Maybe a clip of special shape would be necessary for the job you have in mind. Well, we can help you because we make clips for hundreds of uses. We can make to print or specifica tion, or our Research Department will design for you. Our knowledge of clips has advanced side by side with our 91 years’ spring-making experience, and we should like to send you our catalogue. Sole Makers: HERBERT TERRY & S O N S LTD., REDDITCH LONDON MANCHESTER BIRMINGHAM b y m m s p r i n g s jifcr m •fa a n d just a few TD, special shapes we III® have made to order. 10 Established 1855 I August 30, 1946 3 0 E l e c t r ic a l R e v ie w Built to be The Greatest Value in Electric Cookers Value is not a matter of a single ingredient but a combination of all these essentials :— Quality of Material Precision of Manufacture RECORD ELECTRICAL CO. LTD. BROADHEATH • ALTRINCHAM • CHESHIRE Efficiency in Operation Tel.: Altrincham 3221/22. Grams: “Infusion,” Altrincham London Office : 28, Victoria Street, S.W.I Ease in Maintenance > Length of W orking Life The new Jackson I92J series IV Electric Cooker offers all these features, and is a worthy successor to the 9I/92J which it supersedes after 14 years, during which they achieved a W orld Record Sale for any electric model, and repre MOULDED RUBBER sented over 40 per cent, of sales SERVICE of British Electric Cookers. Invite enquiries. Advice given on rubber formulas to meet special requirements. The JACKSON ELECTRIC STOVE Co. Ltd. 143 SLOANE STREET, LONDON, S.W.I Phone: Sloane 6248 G r a m s: Cookelec, Phone London. August 30, 1946 E l e c t r ic a l R e v ie w 31 If starters could reproduce themselves the present heavy demand tor M.E.M. motor control gear would be met without delay. But as it is, labour, material and extensive planning are needed. Yet in spite of shortages, controls and restrictions, supplies from the M.E.M. Factory are being steadily increased and goods are going out as quickly as possible to the whole salers. Their’s is the job of distribution and they are doing it magnificently in allocating all available goods fairly and equitably. So keep in touch with your wholesaler and he will see that your needs are met as quickly as supplies permit. MIDLAND ELECTRIC MANUFACTURING CO. LTD., TYSELEY, BIRMINGHAM, 11 SWITCH, FUSE AND M OTOR CONTROL CEAR, ELECTRIC FIRES AND LOCALISED LIGHTING EQUIPMENT London Showrooms & Stores: 21-22 Rathbone Place, W . 1 : Manchester Showrooms & Stores: 48-50 Chapel Street, Salford, 3 3 2 E l e c t r ic a l R e v ie w August 30, 1946 IN ADDITION TO A COMPREHENSIVE RANGE OF STANDARDISED SIZES, SPECIAL TYPES ARE MADE AT SHORT NOTICE Send particulars of your requirements ALWAYS IN STOCK to our Technical Servfce Dept. IMMEDIATE DELIVERIES & RODS LiO. LTU 51*32 T0 ÜI6 R STREET••• BIRMINGHAM 19 PHONE: ASTON CROSS 3463-4 = • ELECTRIC FURNACES g r a m s : o h m i c « B ir m in g h a m LAMPS & VALVES EXACT TO SPECIFICATION — LET US QUOTE YOU— The registered Trade M a r k o n A sh le y Elec trical A cce ssories is a guarantee of reliability and of quality second to none. It Is regretted that su p p lie s are still far short of customers’ re VACTITE quirements, but output Is being distributed in strict fairness to all. As the raw material situation I m p r o v e s , delays and shortages will be eliminated. WAVERLEY WORKS, 75, ST. SIMON STREET, ASHLEY SALFORD, 3, LANCS. Telephone : BLACKFRIARS 9831. ACCESSORIES 11° ¿jVjaiJiili£SS_0£.ELECTRICAL^IÇALAÇÇESSORIESM ACCESSORIES! Telegrams: VACTITIC, SALFORD. m iuï.ïiiiiily August 30, 1946 Electrical Review 33 u KNOW THE PROBLEMS 1 BURCO V 840. OF SUPPLY Cabinet type AND Electric DEMAND Wash Boiler IPERMANENT HOUSING is FIRST Post war design PRIORITY at its best ¡m55 BURCO LTD • ROSE GROVE • BURNLEY a Uli town i va* 5 ftfSS' s if? s oías# THE DIXON POWER FLOOR SCRUBBING MACHINE «a** is specifically designed for industrial use. It is essential that äj ffffcj the floors of Factories, Assembly Shops, Canteens, etc., should sraał be kept in a clean and hygienic condition not only for maximum production but for the health of your employees. * rí* # The Dixon solves the problem in the most economic and joilíf»* efficient way. It wet scrubs large areas of floors, of any type, aw in a fraction of the time taken by old-fashioned methods, líiaud. removes all grime, grease and dirt and leaves the fioors clean and hygienic. Can also be converted into a polisher. Leaflets and further particulars can be obtained from the manufacturers R. G. DIXON & CO. LTD. CAPITOL WORKS, EMPIRE WAY, WEMBLEY, MIDDLESEX Phone : WEMBLEY 4139 Showrooms : 83 82 Regent St. (Quadrant Arcade) London, W .i. Phone: Regent 5771/2 3 4 E l e c t r ic a l R e v ie w August 30, 1946 MICRO-LATHES MODERN SMALL PRECISION BENCH LATHES for WATCH, CLOCK and INSTRUMENTWORK and all high precision engineering. W e are always ready to advise upon the adaptation of Pultra Lathes to meet special re Four way Tool Post p.M.10 2 quirements. is a useful addition to all C om pound Slide Rests as used on Pultra Micro Lathes Series P. PULTRA LTD. 24.GRAVEL LANE. SALFORD 3. MANCHESTER Phone BLA.9I8I. ■ Products by A Vest Pocket CABLE STRIPPER BEVGREE Patent N o . 571461 FOR SINGLE AND MULTI-CORE CABLES • FLUORESCENT OF THE BRAIDED TYPE CHOKES • MAINS TRANSFORMERS • HOME CHARGERS W e will be pleased to make trans formers to customers' specifications. A ll enquiries to I— SOLE AGENTS for Home & Export (except Midlands). Showing Transverse Cutting BARRIES For Electricians, Wiremen and Cable Electrical Agencies Ltd., Operators KING ST., BRIGHTON 1, SUSSEX Write for Brochure : Telephone ; Brighton 4456. CABLE STRIPPERS Ltd LE IG H TO N H O U S E , POTTERS BAR. MIDDX \ o v N i E D r « f m C H t i0ł#e#*4 ri0N The right combination of electric motor with each piece of plant is a sure and safe way of ensuring the maximum efficiency and working life for both motor and plant. With more than 2,000 different standard varieties of electric motors to choose from, the Crompton Parkinson range ensures the selection of the right motor for the job. 36 E l e c t r ic a l R ev ie w August 30, 1946 The largest Pumpless Rectifier in the world The design 'and manufacture of this record size in rectifier equipment serves to emphasise Hewittic experience and leadership in rectifier design — factors which are reflected also in the more usual sizes of equipment, whether for the operation of traction systems and D.C. industrial plant or for the smaller applications like battery charging. The total of Hewittic Rectifiers in world-wide service is approaching a MILLION KILOWATTS. ___ «y j ifllSI A large electrolytic plant in Canada. I fB supplied with D.C. from the 8 ,7 5 0 -kW rectifier above HEWITTIC ELECTRIC CO. LTD., WALTON-ON-THAMES, SURREY Telephones : W alton-or)-Thames 760 (8 lines) Telegrams: “ Hewittic,” Wa I ton-on-Thames Æ h August 30, 1946 E l e c t r ic a l R e v iew V S 'B 'P 8 SINGLE BUSBAR METALCLAD UNIT The excellence of “ FERG U SO N , PAILIN ” design and manufacture in the larger types of switchgear is exemplified by this unit. The circuit breaker is vertically isolated by a self-contained raising and lowering mechanism. Among other advantages, this means easy inspection and maintenance of the circuit breaker contacts, etc. Available in single and double busbar design up to 33kV. FERGUSON, PAILIN LIMITED MANCHESTER II • ENGLAND LONDON BIRMINGHAM Temple Bar 871 1/2 Erdlngton 3775 G L A S G O W B re a ke r Central 5050 W ith d ra w n 38 E l e c t r ic a l R e v ie w August 30, 1946 S r a t i d a r d A U JA « AT I C BATTE RY k a i r / e r s m i ' F O R ^EMERGENCY HE ‘ Standard ’ Automatic Battery T Charger is designed to maintain a LIGHTING SYSTEMS floating battery between fixed upper and lower limits of voltage for long periods without attention. It is therefore emin ently suitable for Signal, Emergency Lighting and Telephone Systems. The control operates directly from the bat tery voltage and is therefore independent of variations in mains voltage or frequency. Voltage limits can be as close as + i\% of the nominal voltage and can be ad justed to meet local conditions merely FOR SIGNAL SYSTEMS by setting two dials. ‘ Standard ’ Automatic Battery Chargers have now been in service for seven years without any maintenance of the charger or battery beyond occasional topping-up of Cells. Our Bulletin SR. 151 gives full details. I N CORPOKATI N G FOR TELEPHONE SYSTEMS [ SELENIUM c m r u RE C T I F I E KS mtGisrtmto r m^oe maak __ Standard Telephones and Cables Limited (RECTIFIER DIVISION) OAKLEIGH ROAD, NEW SOUTHGATE, LONDON, N.ll Telephone: ENTerprise 1234 Telegrams: «• Essteecee, Telex, London” August 30, 1946 Electrical Review By Appointment to H.M. The King Suppliers of Lighting Switches is geared to essential needs w E should like to be able to accept every order we are offered and to give our Trade friends the service they enjoyed in pre-war days. But that is not possible. The out put of our products is restricted by the availability of raw materials and suitable labour and since both are in short supply, our production must be allocated to orders for urgent and essential requirements. CRABTREE NAME • SYNONYMOUS * W IT H • PROGRESS • IN • ACC ESSORIES - ANI) - SWITCHGEAR “ Crabtree ” (Registered C.608/87, Advt. of J . A . Crabtree & Co. Ltd., Walaall, England, 40 E l e c t r ic a l R e v ie w August 30, 1946 D m e r ITD t y b u r n r° eroington r O L E S L _ BIRMINGHAM 24 TELEPHONE: EROINGTON 1616 TELEGRAMS____ --r»ck.lTICVC9«o £• CABLES PQ LES • BI _ R M I N G HAM ' COOES : BENTLEYS 2?.° A . B.C. 5 ™ August 3 0, 1946 E l e c t r ic a l R e v ie w 41 ENGLISH ELECTRIC The English Electric Company is one of the largest manufacturers of electrical equipment and allied apparatus in the British Empire ; its activities extend to all parts of the world. Electrification schemes carried out by the company include complete power stations for the generation of electricity by steam, water and oil, power transmission systems, railway electrification, vehicles for road passenger trans port, equipment for marine pur poses, and electric drives for Collieries, Iron and Steel W orks, Textile Mills, Paper Mills, Quarries, Dockyards and factories of all kinds. The Company also manufactures electric cookers, washing machines, fires and other electric domestic OIL EN INE PLANT appliances. ? I THE ENGLISH ELECTRIC COMPANY LIMITED QUEEN'S HOUSE. KINGSWAY, LONDON WORKS: STAFFORD. PRESTON. RUGBY. BRADFORD. LIVERPOOL HYDRO-ELECTRIC PLAN1 RAILWAY ELECTRIFICATION STEEL WORKS PLANT 4 2 E l e c t r ic a l R e v ie w August 30, 1946 HEAVY O R LIG H T - frames and cases are all just sheet metal fabricated to the customer’s requirements From customers’ specifications A ir Ducts will m a k e to order: feeder pillars, telephone boxes and cubicles, busbar chambers, connection boxes, instrument panels, and frames and cases of every description. They work in all sheet metals, including steel, duralumin, aluminium and other non-ferrous metals. Great West Road, Brentford. Telephone : Ealing 6655. Telegraphic Address : 44 Airdux. Brentford ” Com pos, the The largest be d S s o i electricity larS ^1 *e of « “ „VO. M M M M " “ „dl go» “ ful,s plants front 5 g per hour- — — cnutfl'' ,0" August 30, 1946 E l e c t r ic a l R ev iew 4 3 Siandaxd £exmina£ 3 l t < y c h i > As Plastic Moulders with unrivalled experience in the Electrical and Wireless Trades, we look forward to the opportunity of employing the extensive knowledge gained from working to exacting war-time specifications in assisting you to solve your post-war Plastic problems. INSULATORS LTD o f j W e A x A LEOPOLD R O AD • E D M O N T O N • L O N D O N . N 18 • P H O N E : TO T1491 (4 lines) E l e c t r ic a l R e v ie w August 3 0, 1946 The Redifon R.H.7 r a d io heater drying out s m a ll plastic models. Ceramics dried out quickly by Redifon heating O NE of the outstanding processes heater well-suited to experimental and that can be carried out by Redifon small scale production to work on ce heating is the quick and thorough ramics. This radio heating generator has drying-out of plastic and ceramics used an output of 1J kW. and, when used in the electrical manufacturing industry. with a special fan unit drawing warm This feature of Redifon radio heating is air through the radio heating chamber, additional to its well-known capabilities will evaporate w ater at 6 lbs. per hour. in the production of high-grade plastic For fuller details of Redifon heating components for electrical use. with Model R.H.7, write for Rediffusion The R.H.7 is a typical Redifon radio Technical Bulletin No. 6. Rediffusion Ltd. Designers and Manufacturers of Radio Communication and Industrial Electronic Equipment Broomhill Road, London, S.W. 18 August 30, 1946 KAUTEX CORK £ SYNTHETIC RUBBER £ MATERIALS \M % Kautex materials have a hundred-and-one uses in Eiectrical r: and other Power Installations where a material is called for that is light, strong, resilient, tough and durable according \’yi to present-day scientific standards. It can be supplied in Sheets, Gaskets and Mouldings. WAITE FOR SAMPLES AND PARTICULARS Kautex Plastics Ltd Elstree, Herts. Elstree X777 TANGENT SIGNALLING EQUIPMENT for the Mining Industry (CERTIFIED BY H.M. MINES DEPARTMENT) ^ Many of the familiar ‘Tangent’ electrical products are still hard to come by, but there are others, like the Fig. 2124 Certified, Battery Ringing Telephone, for which reasonable deliveries can be given. Users of Intrinsically safe equipment know the Fig. 2124 as a robust, reliable and efficient instrument built to stand ‘ Tangent ’ Certified Equipment includes : up to the most Bells, Relays, Pushes, arduous conditions Keys, Transformers, of service. Switchboards, Shaft GENTS' Signals, Delay Ringing ^ m O F LEICESTER Units i?stab . 1872 Manufacturers of Electrical Equipment since 1872 GENT & CO. LTD.. Faraday Works. LEICESTER • LONDON : 47 VICTORIA STREET. S.W. I E l e c t r ic a l R e v ie w August 30, 1946 A {tA a ¿lietcJv He’ll get a long sentence too, but that’s what he’s made for. He comes If it is a combination of light alloy from a family of “ time founding and engineering—P.B.M. can do it. You set the “ standard” and serving ” springs and P.B.M. will do the work to standard. pressings, each one de P.B.M. service already covers long lists of internationally-known firms for a signed to accomplish wide range of work up to finished some “ special job.” assemblies. But there is still capacity in some departments. W ith a modern foundry, well-equipped heat-treatment plant, X-ray and chemical laboratories, THE TEMPERED SPRING extensive press shops and machine CO. LTD. shops, P.B.M. are ready to serve you efficiently. ATTERCLIFFE RD„ SHEFFIELD 4 PERRY RRRR RIEIR1C0R1PRRY LTD Laboratories: O sco tt Engineering W o r k s : Works, Shady Lane. Middlemore Road, Great Barr, Birm ingham. Handsworth.Birmlngham Tel. : GREat Barr 1794-5 Tel. : NORthern 3366-7 Foundries : Wellhead Lane, Perry Barr, Birmingham 22B. Telephone : BIRchfields 4592 & 4593 August 3 0, 1946 E l e c t r ic a l R e v ie w 4 7 3 àinglellmk METALCLAD SWITCHCEAR Jntteduced Chityinaify in 1934 and ôtiÎC 3We-eminent IMPROVE YOUR LIGHTING in consultation with yjj^w ductim i METRO VICK'S ILLUMINATING EN G IN EERS 48 E lec tr ic a l R eview August 30, 1946 Manufacturers of these and many other Electrical Accessories BRITISHCENERAL‘MliP-C?,(l94l)LTP II,CHARLOTTE STREET, LONDON, W.l. August 30, 1946 E le ctrica l R eview 49 IVI 3 Metalclad Unit AIR or COMPOUND INSULATED. SHORT CIRCUIT TESTED in excess of breakerrating C certified to BSS116/1937 up to rated capacity London Office Grand Buildings, Trafalgar Square, W .C.2 Telephone : Whitehall 3530 E le c tr ic a l R eview August 30, 1946 w ith the CROMPTON ‘TONG TEST’ right for D.C. as well as A.C. CRomPTon PRRKinson August 30, 1946 E lec tr ic a l R eview 51 A FULLER RESISTANCE WELDERS b y ASEA■SVETS Sole Licensees for TAYLOR ■ W INFIELD FULLER ELECTRICAL & MANFG. C? LTP (ASSOCIATED WITH ASEA ELECTRIC LTD.) FULBOURNE ROAD • WALTHAMSTOW . LONDON • E.I7 Phone : LARkswood 2350 (10 lines) Grams : Fvllmage, Telex, London BRANCHES: MANCHESTER GLASGOW BIRMINGHAM Blackfriars 2238 mm Stepps 419 Solihull 1718 52 E l e c tr ic a l R eview August 30, 1946 M The call upon equipment for electrical supply is heavy and increasing. When production and maintenance resources are strained it is more than ever essential to ensure safety and freedom from trouble by installing only the best obtainable transmission material. specify C.M.A. Regdt Trade Mark N 08. 666, 685-6-7 CABLES MEMBERS OF THE C.M.A. The Anchor Cable W . T. Glover & Co. Ltd. Liverpool Electric Cable Pirelli-General Cable C o . Ltd. Greengate & Irwell C o s Ltd. W orks Ltd. (General British Insulated Rubber Co. Ltd. Electric Co. Ltd.) Callender’s Cables Ltd. The London Electric St. Helens Cable & Connollys(Blackley) Ltd. W .T. Henley’sTelegraph W ir e C o . and Sm iths Ltd. W orks Co. Ltd. Rubber Co. Ltd. The Craigpark Electric Siemens Brothers & Cable Co. Ltd. Johnson & Phillips Ltd. The Macintosh Cable Co. Ltd. Co. Ltd.(Siemens Electric Crompton Parkinson The India Rubber, Gutta- Lamps and Supplies Ltd.) Ltd. (Derby Cables Ltd.) Percha & Telegraph The Metropolitan Standard Telephones Enfield Cables Ltd. Works Co. Ltd. Electric Cable & & Cables Ltd. Edison Swan Cables Ltd. (The Silvertown Co.) Construction Co. Ltd. Union Cable Co. Ltd. Advt. of the Câble Makers’ Association, High Ho/born House, 52-54 High Holborn, W.C.I. Ho/born 7634 E lectrical R ev iew Managing Editor : Hugh S. Pocock, M.I.E.E. 946 Technical Editor : Commercial Editor: C. O. Brettelle, M.I.E.E. J. H. Cosens Page Page ¡Ill Editorial. — Nationalization Pro- Municipal Reports 343 posals 323 Electricity in Switzerland 344 33-kV Switch-House 325 All-Electric Dairy Farming 345 Guidance for Contractors 329 “ Britain Can Make It ” 346 Views on the News 330 Electricity Supply 347 Diesel-Electric Ship. By F. E . Little 331 Street Lighting in Manchester 348 I.E.E. Section Chairmen 334 Recent Introductions . 349 Personal and Social 335 Financial Section . 351 Correspondence . 338 New Patents 356 Electricity Supply Loans 338 Contract Informatio,ation . . 357 Overseas Electrical Trade 339 i P O t f V : I K Street Lighting . 340 Classified Advertisement? . . 59 Commerce and Industry 341 Index to Advertisers . . . 78 ------EDITORIAL, ADVERTISING & PUBLISHING OFFICES : Dorset House, Stamford St., London, S.E.I Telegraphic Address : “ Elecrev, Sedist, London.” Code : ABC. Telephone No. : Waterloo 3333 (50 lines). Registered at G.P.O. as a Newspaper and Canadian Magazine rate of postage. Entered as Second Class Matter at the New York, U.S.A., Post Office. Annual Subscription, post free : Great Britain and elsewhere (except Canada), £2 7s. 8d. ; Canada, £2 3s. 4d. Cheques and Postal Orders (on Chief Office, London) to be made payable to ELECTRICAL REVIEW LTD., and crossed “ Lloyds Bank.” Electricity offers undoubted advantages for heating Industrial premises when applied through Univectair Suspended Unit Heaters. The highest heating efficiency combined with the lowest installation, operational and main tenance costs can be obtained. The heating Units can be operated on thermostatic control. - n A range of Unit capacities is available to meet every industrial requirement. U llW ^CCtaVi ELECTRIC INDUSTRIAL HEATING BRITISH TR A N E CO. LTD. VECTAIR MOUSE. CLERKENWELL CLOSE. LONDON. E.C. I clerkenwell S86<-3826 TeLegram s em a r tr a n e sm it h fLONOOM 54 E le c tr ic a l R eview August 30, 1946 Illustrated here are two of B e rry ’s N e w W a ll Mounting Fires. They are simple to fix, re quiring no surround, no heat insulation, no cut-out and no visible w iring. BERRY’S ELECTRIC LIMITED LONDON ' BIRMINGHAM MANCHESTER ■ NEWCASTLE ' EDINBURGH SPECIAL AIR DUCT VENTILATION * M INIMISES WALL ‘ DISCOLOURATION i t PROLONGS LIFE OF HEATING ELEMENTS Peace restores illumination; economy dictates rigid conservation in its use. Unnecessary fuel consumption can be avoided by installing the Magic Eye—the Sangamo Weston Time Switch, which turns lights on and off at predetermined times. Manual work and super vision entirely superseded. Write for full information. The Solar Dial Time Switch which automatically makes its own adjustments for variations in time of sunrise and sunset dur ing different months of the year. SANGAMO WESTON Time Switches SANGAMO WESTON LTD.. ENFIELD. MIDDLESEX Phone : Enfield 3434 & 1242 E lectr ic a l R ev iew THE OLDEST ELECTRICAL'PAPER - ESTABLISHED 1872 Vol. C X X X IX . No. 3588. AU G U ST 30. 1946 ^9d. W E E K L Y [ POLITECHNIKI)------ Nationalization Proposals Example of the Steel Industry ACED with a situation roughly wide experience in such work of organiza F parallel with that confronting the tion and co-ordination of the industry as electricity supply companies, the Iron and would be “ in the national interest and in Steel Federation has agreed to participate the future interests of the electricity in the Board which is to be set up for “ the industry and its employees ” (using the general control and supervision of the iron Minister’s own words). But they ex and steel industry.” pressed their conviction that to nationalize A statement issued by the Ministry of the industry by transferring it to Govern Supply says that the Government has ment ownership was contrary to all these decided that the Board should concentrate, interests. under the Minister, on the supervision of the development and reconstruction of the Obvious Decision industry and on “ the exercise of such They were not given the option, as were continued direct control functions as may the iron and steel companies, of serving be necessary in such matters as production, on a body designed purely to bring about distribution and prices. It will not be part improvements, independently of the of the functions of the Board or of the question of ownership. They were forced members from the steel industry to advise to choose between contributing to their the Government in connection with plans own extinction or declining to have for public ownership.” anything to do with the scheme. Their decision was such as might have been Declined Invitation expected by the Minister (and probably It will be recalled that the electricity was) and they were thus placed in an supply companies’ associations recently ■“ unpatriotic ” light. told the Minister of Fuel and Power that This has just been accentuated by the they could not accede to his request that “ practically unanimous ” decision of the they should appoint a “ small committee I.M.E.A. to support the Government in its of persons with an expert knowledge of nationalization policy. It will not be the electricity supply industry whom the generally appreciated by the public that Minister could consult.” Their reason the cases of the municipalities and the for declining to agree to this course companies are very different (as we pointed was that such consultations would be out last week) and the companies are directed towards the framing of the Bill likely to suffer the odium of “ in for nationalizing the industry. transigence.” It is at this point that the parallel with What, then, should be their next move, the iron and steel industry ceases to apply. seeing that the Government is clearly not The power companies said that they had to be deflected from its course ? While we at all times been ready and willing to must regret the inevitability of nationaliza co-operate and give the benefit of their tion, because we have seen no evidence 324 E le c tr ic a l R estew August 30, 1946 that improvement will result, yet we should residences and in shops and other com regret still more a disunity in the industry mercial premises. The omnibus heading which might well impair its service to the of “ lighting, heating and cooking” is nation. We hope it may yet be possible inadequate for present-day developments, for all sections to come together in the and the figures under it are usually, but broad interests of public service. incorrectly, identified with domestic con T h e announcement by sumption which amounts to less than two- Street the Minister of Transport thirds of the total in this category. The Lighting that he is taking o^r the incomplete returns in Table 37 provide the responsibility for street only indication of cost per kWh as an lighting comes appropriately just before overall figure. the annual conference of the Association A g r e a t deal is being of Public Lighting Engineers. Members Design for thought and said now- will thus be given another topic for dis Industry adays on the subject of cussion and their views will be of value. industrial design. Every Mr. Barnes hopes that lighting authorities body seems to be agreed that mere will adopt, as soon as they can, the recom utility in apparatus and equipment is not mendations of the Departmental Com enough and the idea of William Morris mittee on Street Lighting (1937) of which and his disciples that even the common Sir Clifford Paterson, Mr. J. F. Colquhoun place may be made attractive is taking a and Dr. J. W.. T. Walsh were members. firm hold. Practical expression of this While it is most important to raise the idea is to be provided by the “ Britain Can standard of illumination of main roads Make It ” exhibition at the Victoria and such improvement if carried out only in Albert Museum opening on September certain areas is likely to prove troublesome 24th. In connection with this a number to road users, and the Minister is wise in of conferences are being held; the first is stressing the need for uniformity, which of being organized jointly by the Council of course should be at the higher level. The Industrial Design and the Federation of Minister made it clear that economy of British Industries on September 26th and fuel should be obtained by switching off 27th. Among the speakers we notice the at midnight rather than by reducing names of Mr. A. Whitaker, O.B.E., M.A., standards of lighting. M.I.E.E., whose subject is " Design Train Statistics just issued by ing,” and Mr. Leslie Gamage, M.C., who Loan the Electricity Commis- will stress the importance of good design Sanctions sioners show that during in fostering export trade. the past eight years they I n many ways the fuel have sanctioned the borrowing by elec Fuel in situation in the United tricity supply undertakers of about £167 the U.S.A. States during the war years million, including £20 million by the resembled our own. A Central Electricity Board. The bulk of report published by the World Power the m oney w'as required for generating Conference refers to insufficiency of labour plant and the necessary buildings; it is in mines and the lowering of boiler house noteworthy that applications in respect of and turbine-room efficiencies through the wiring installations and apparatus rapidly running of all kinds of plant for long hours. declined during the war period, but an There were similar problems due to the upward trend has now set in. During w idespread use of coal of high ash content. the total amount of sanctions rose 1944-45 Although alternative fuels were not adop above the pre-w'ar figure and in 1945-46 ted to any great extent, the position must was about a third higher at £37-7 million. have been greatly eased through an increase A r i s i n g ou t o f the in the output of hydro-electric stations Commissioners' details of domestic con- from 44.000 million to 80.000 million kWh Statistics sumption of electricity in at the end of the period, when it probably Switzerland given in this reached about 60 per cent of the total. issue, it is to be hoped that with the Price, there as here, had little effect on resumption of publication of the Electricity the choice of luels. since availability was Commissioners’ statistics, the opportunity the determining factor. Now, however, can be taken to differentiate between the the use ot tuel in the United States is said kWh used in (if not the revenue from) to be on an economic basis. August 30, 1946 E lectrical Review 325 Switeh-Honsc Scheme at Blackburn in Connection with New Station »WM :0 kl, 11 SU B ssociated with % Et Al. the new power station of the Black burn electricity under taking, which was described in the Elec trical Review o f April 26th, is a new 33-kV switch - house which appears to us to repre sent probably the latest word in the expression of modern ideas re garding the segrega tion of equipment. It will be recalled that generation in the new The new switch-house (left) runs parallel to the 6.6-kV switch-house right; station is at 33 kV' interconnecting transform ers between buildings direct, while generation at 6-6 kV is still con with the main switch rooms in the centre bay tinued in the old station. There are separate which is about 24 ft wide and occupies the main transmission systems at both these whole length of the building except for a voltages at Blackburn and, of course, links loading and inspection bay about 20 ft wide with the grid. Taking the broader viewpoint, at the north end. On the east side of the then, o f “ electricity supply ” at Blackburn, main switch rooms is a bay about 14 ft the importance of the new switch-house will wide in which the 76-ft long control room is be better appreciated by visualizing the part centrally disposed. Flanking the control it plays in the essential link up, as an integral room at the south end are busbar zone scheme of the grid, of both systems of genera protection and battery rooms, and at the tion and the primary transmission systems. north end a neutral earthing resistance and The principle o f segregation is at first switch room and a fire service room. On the manifest by the isolation of the new switch- west side of the main switch rooms is an house from the power station, in line with an annexe which comprises cable cubicles which earlier development which embraced a 6-6-kV afford separation of the main cables from switch-house similarly isolated. Actually the main switch rooms, a separate compart the new switch-house runs parallel to and ment being devoted to the termination of the about 75 ft from the 6-6-kV switch-house cables for each circuit. which is adjacent to-the C.E.B. substation, The main switchgear is of the metal-clad, and it lies, in common with the older switch- compound-filled, duplicate busbar, hori- house, at right angles to the new turbine zontal-draw-out type, with provision for house on the south side, with a spacing of busbar selection by means of removable about 65 ft from the turbine house. plugs. The circuit breakers are solenoid The building is a brick and concrete struc operated, and adequate interlocking and ture pleasuring overall about 164 ft long, 46 safety features are provided to prevent ft wide and 26 ft high. Regarded longi inadvertent and unauthorized operation. tudinally the building is in three sections, The switchgear is fitted with turbulators and 326 E l e c t r ic a l R eview August 30, 1946 has a rupturing capa city of 1,000 MVA. There are at present fourteen switch units installed, five of 1,200-A carrying capacity and nine of 800-A carrying capa city. With the excep tion o f one unit, namely, a 1,200-A busbar section switch, these are situated in the two switch rooms, seven in one room and six in the other. In one o f the switch- house sections there are a 1,200-A unit controlling the l.v. side o f ' a C.E.B. 30.000-kVA trans former : an 800-A. 40.000-kW turbo- altemator unit; an 800-Aring-main unit; an 800-A C.E.B. feeder unit ; an 800-A interconnector unit; an 800-A skele ton unit for a future tie-reactor circuit;' and a 1,200-A bus bar coupler. This equipment is duplicated in the other switch-house section, except that there are only six equipments in this case, there being no C.E.B. feeder unit, while the turbo-alter nator switch in the second room con trols. of course, the 30.000-kW turbo- alternator, i.e., the first o f the two h.p. generating equip ments installed in the new power station. The two intercon nector switches pro vide the link with the 6- 6-kV switchgear via two 20,000-kVA August 30, 1946 Electrical Review 327 outdoor transformers which are located future interconnectors, one for the top between the two switch-houses and segregated busbar and one for the bottom busbar, on the cubicle prin ciple, not only between themselves, but also between each transformer and its associated cooling equipment. The English Electric trans formers are of the natural air cooled oil type, with remote electrically controlled on-load tap changing gear on the 33-kV side. The busbar section switch is arranged be tween the two switch- rooms in a compart ment o f its own. The bottom (running) bus bar is sectionalized by means o f this switch, and the top (transfer) Between the two main switchrooms is the busbar section switch ; note ...... rail track, truck, and fire-proof doors busbar is solid throughout the length of the switchboard. and each in its own separate compartment, There is provision for the future installation shall be installed at each end of the main of four additional switch units which will switchroom bay. provide the necessary interconnection with a There is a wide gangway in the switch-room similar switch-house which will become bay, in front of the actual switchgear, and running from end to end of the building is a light rail track flush with the floor, with branches to each switch unit. By means of this and a special switch-lifting truck any unit can be withdrawn and run to the loading and inspection bay or to any other position for interchanging pur poses. The railway runs right through the aligned doorways of the segregating walls, each of which is served by a sliding fire proof door. An efficient oil draining system is provided by pebble-filled pits under each switch unit, with communicating ducts to an oil sump. The switchgear is normally controlled from a main control board in the power station, but there is an emergency control There is an emergency control board in the new switch-house board in the new switch-house. The main control board has the necessary when the new power station is control and indicating devices associated with extended back on the site of the existing old the operation of the alternator, transformer, station. It is intended that two of these feeder and other circuit breakers interposed 328 E lh ctrica i R eview August 30, 1946 in a system diagram. Each feeder circuit brown. The emergency control board is breaker control switch is fitted with an generally similar to the main control board, indicating lamp which lights when the position except that it is o f sheet-steel and that it has of the control switch varies from that of the standard flush-mounted instruments and circuit breaker. The operating handle of carries all the relays for the various circuits. the control switch is in the form of a It is finished in semi-glass lavender grey, and semaphore indicator, and it can be turned the instrument and relay cases are black. either to the “ open ” or the “ closed ” The busbar zone protection relay board is position, so that circuit pre-selection is a “ Dualock ” cubicle-type equipment, and possible. The alternator circuit breaker the protection is arranged in one unit for the control switches are similar to the feeder whole of the switchgear, including the three circuit breaker control switches. They sections of busbars, but each busbar run is operate interposing contactors which, in turn, discriminatively protected, so that a fault in complete the circuits to the motor-operating any one section isolates that section alone. gear of the regulators and other apparatus. The s.p. switchgear for controlling the The indicating instruments are of the alternator neutrals is of the single busbar moving-iron, flush-mounted, rectangular-dial metal-clad horizontal-draw-out type, with type, with 6-in. vertical shadow scales. Each turbulator circuit breakers, and is generally instrument is self-contained and can be with- similar to the main 33-kV switchgear. The earthing resistors are of the splayed - grid type, consisting of a number of alloy-steel banks which are mounted on micanite- insulated steel rods, with suitable spacing, etc., all housed in a mild-steel frame. The neutral earthing resistor o f the altern ator is rated at 1,000 A for 30 seconds, and the interconnector trans former neutral resis tors are rated at 1,750 A for 30 seconds. The 230-V, 750-Ah “ Nife” station battery The main control board is in the power station is operated automatic ally, a separate cabinet drawn separately from its panel. An alarm being provided for a selenium rectifier and panel is equipped with electro-magnetic the associated equipment for both normal superimposed dual-movement indicators for and trickle charging. Distribution from the fire-alarm, Buchholz indication and protective battery is effected by metal-clad unit-type relay operation, etc., and indication is given interlocked switch-fuse gear, and contactors by non-coincidence between the two parts of are provided for changing over automatically an indicator which then form a cross. The from the station a.c. supply to the battery board is surmounted by two swinging frames supply in the event of mains failure. There under hand-wheel control, each accommo is a similar distribution board in the battery dating two 12-in. circular flush-mounted volt room on the a.c. side. meters and a 12-in. synchroscope. It has a The switchgear throughout is protected by matt finish, with the main panels in light a comprehensive “ Mulsifyre ” fire-fighting green and the label panels and equipment in installation emanating from the fire service medium green. All the control switches and room, and an interesting feature of this other operating controls are black. The bus installation is the absence of the usual service bar lines are black and red, and the neutral pump. Instead, the installation is fed from connections for the 6-6-kV transformers are and is constantly under the head of a trough August 30, 1946 E lec tr ic a l R eview 329 of water around the interior wall of each of Mr. R. H. Harral, engineer and manager the “ Davenport ” cooling towers. This of the Blackburn electricity undertaking, trough is normally filled with water as the acted as consulting engineer for the design, result of condensation, but a pump is provided erection and equipment of the switch-house, for emergency use. and we are indebted to him for permission “ Pyrotenax ” fire-proof cable is used to view the installation and to publish this throughout the installation for the controls article. Our thanks are also due to Mr. and for all the battery, lighting and power A . N . Duffett, deputy engineer and manager, supplies. A ll the major equipment through and to Mr. H. Parker, station superintendent, out the switch-house is of Reyrolle produc for their help in collecting the information tion. and taking the photographs for this article. (liuidaiKT for Contractor§ Position Under W .B.A. Scheme ■ N July, Mr. L. C. Penwill, Director o f the shortage of materials and components for Electrical Contractors’ Association, outlined purposes other than building should be taken the position o f the Association's members under up with the production authority for the material the W.B.A. priority scheme for building and component in question by the Department materials. This is amplified in another letter interested in the consumer of the material.” which he has circulated containing notes based on .rulings by the Ministry of Works. Wages and Output It is stressed that the scheme relates only to Clause 1 of the wages agreement of April 6th materials and components required in building last reads as follows:— “ That in return for a work. A schedule of the electrical goods within fair wage paid by the employer it is incumbent the scheme has already been sent to members. upon the worker to give his maximum skill No concise definition of “ building work ” is and service to the industry, this being the available, but in general it covers work in accepted obligation of the industry to the public connection with buildings (not in connection which it serves. In consideration thereof the with industrial plant or machinery installed in Electrical Trades Union undertakes to urge its buildings) and upon the water, light, heating members to respond to the urgent necessity of and other services to buildings. Generally increasing output.” speaking, a broad interpretation will be given In this connection it has been decided by the in considering applications for retrospective N .J.I.C . that a statement signed by both the priorities as it is realized that in many cases it N .F .E .A . and the Electrical Trades Union, shall will be impossible to distinguish between be prepared. Copies are being printed in two “ building ” and “ non-building ” work. The forms, viz., as a poster for display on notice necessary forms must not be used in respect of boards and as a slip for insertion in wage materials which are required for work which is packets. The statement is in the following clearly not “ building work.” terms:—“ Attention is drawn to Clause (1) of the agreement between the Electrical Trades Non-Building Supplies Union and the National Federated Electrical Local authorities are empowered to grant Association, dated the 6th April, 1946. It is priority certificates only in m connection with the responsibility of the National Joint Industrial housing. Building priorities other than for Council for the Electrical Contracting Industry housing are a matter for the Ministry of Works to bring to the notice o f all concerned that in regional officers. With regard to materials for return for a fair wage it is incumbent upon the other than “ building work,” the Ministry of worker to give his maximum skill and service Works has stated :— “ Attention is drawn to the to the industry, this being the accepted obligation fact that certain materials are used for purposes of the industry to the public which it serves.” other than building and it is stated that the It is signed by Mr. E. W. Bussey for the priority distribution scheme is intended to Electrical Trades Union and by Mr. L. C. apply only to that part of total production Penwill for the National Federated Electrical which is normally used in building. . . . It is Association. not designed to apply to or interfere with that proportion of the output of materials and components used for purposes other than Selfridges Electrical Exhibition building. Non-building industries should, Selfridges, Ltd., inform us that the electrical therefore, continue to be able to obtain their exhibition to be held at their Oxford Street requirements from their usual sources subject store, mentioned in our last issue, is now to only to the exigencies of the general supply open on October 2nd, not October 7th as origin situation, and cases of difficulty arising from ally arranged. 330 E le c tr ic a l R eview August 30, 1946 View« on 4 lie Aew* Reflections on Current Topics A S 1 have mentioned on one or two previous creosoting. Nevertheless the better examples ü . occasions, amid the uncertainties which should be good for a life of twenty years or surround it the Incorporated Municipal more. In view of the mixed nature of the Electrical Association was further em whole, the wisdom o f the decision to retain barrassed by the termination of the lease a factor of safety of 3 5 for British poles of its Wellington House offices. The task of (equal to that for the much more costly finding a new home in the present state reinforced-concrete) can hardly be questioned of accommodation in London was quite for until more extended experience warrants midable but I am glad to learn that there reconsideration of their claims. has been a successful issue and from last * * * Monday Mr. J. W. Simpson, the secretary, and his staff have been housed in temporary What may be regarded as a triumph of quarters in Earls Court Road, S.W.5. “ trade unionism ” is reported from Bury, Another electrical organization which has although I prefer to regard it as a triumph been 'forced to seek new premises is the of common sense over parochial prejudice. Electrical Association for Women. Miss The Corporation has decided to offer the Caroline Haslett, the director, has also full scale salary for the post of electrical succeeded in her quest and will soon move engineer which has been vacant since the her staff to offices in Grosvenor Place. retirement of Mr. J. G. Potts. When the * * * post was first advertised at a salary £200 or so below the scale figure there was a very During the past week the newspapers have carried announcements by the Electricity poor response as the A.M.E.E.-E.P.E.A. Supply Companies’ Public Relations Com Joint Committee banned the job. In spite mittee reminding the public that in the ten of this the Council re-advertised on the same years before the war the companies more terms with an equally disappointing result. than halved the price of electricity to the The trouble seemed to be not so much domestic consumer. Advocates of national reluctance to pay “ the rate for the job ” as ization have succeeded in convincing many resentment at “ dictation ” by outside bodies. people that these companies are hard-bitten I hope that Bury will now secure more monopolists who have been grinding the faces satisfactory results. of the poor for many years so there was a * * * need for a counterblast of this sort. The “ Squatters ” are very much in the news companies ask if any nationalized industry to-day. It is interesting to see that a number could do as much for the public and call for of electricity supply authorities are winking at freedom to continue their service. the illegal seizure of Government premises * * * by providing supplies to some of these camps, Last week from the summit of Ben Vorlich, a startling departure by an industry which the Minister of Fuel and Power told a has a record of a sometimes too-strict con Scottish audience:—“ I am going to national formity with the law. I hope that due regard ize electricity in spite of all opposition. I do is being paid to the nature of the electrical not say it arrogantly but it will be done.” installations in the buildings which have been This was certainly going one better than taken over. Some of those which I have proclaiming it from the housetops. Mr. seen have been very “ temporary ” and unless Shinwell went on to say that although the care is exercised there may be trouble. Scottish scheme might be uneconomical in * * * some parts, when it was associated with the national scheme it would prove solvent. Some time ago I referred to the sale by Finchley Electricity Department of goldfish * * * which have been bred in the artificial pond Regarding the differentiation made in the at the electricity works to reduce the mosquito new B.S. 1320 (reported in last week’s nuisance. From reports reaching me it Electrical Review) between imported and seems that the Finchley “ fishing industry ” home-grown timber for poles, the lowering is still going strong and the total sales are of the factor of safety to 2-5 in the first case now more than £375. It is not anticipated, seems to me fully justified by half a century however, that sales will reach such dimensions of reliable service. Equally consistant per that the profits therefrom will justify passing formance can hardly be expected from native on the benefit to consumers in the form of wood used during the war, when sufficient reduced charges. There is accordingly no attention could not always be paid to selec prospect of electricity supply becoming a tion, time of year of felling, seasoning and mere sideline,—REFLECTOR. August 30, 1946 E lectrica l R eview 331 Diesel-Electric Ship Equipment of a Former German Vessel HE electrical installation of By F. E. Little Each of their direct-coupled the captured German Diesel- exciters can provide half the electric ship, Empire Welland (formerly the fields for the main alternators supplying the Patria), in which I recently became chief power network. These sets are automatically electrician. embodies many interesting started from 48-V batteries, one by means features. Power is obtained from six three- of two electric motors geared to the flywheel; phase, 50-cycle. 250-r.p.m., 3- 3-k V alternators, power failure or fire-alarm operation causes five of which, rated at 2,160 kW, are direct- the set to run up, in the former case relays coupled to eight-cylinder Diesel engines and closing its circuit-breaker on to the “ lighting one of 1,600 kW to a six-cylinder Diesel. only ” busbars and also starting a cooling- These are installed in two engine rooms water pump. The second unit is started amidships, separated by a water-tight bulk through a solenoid opening a valve from head with an electro-hvdraulically operated the compressed-air system, but is not switched door between them. in until after the operator has cleared any In the forward engine room are the excessive load. controls of the starboard propulsion motor The 380-V switchboard is split up into and, in an isolated compartment, the high- four busbar sections (Fig. 1) which can be voltage switchaear and reactors for paralleling linked together through two-way switches; the altematois, a 700-kVA, 3-3-kV400-V the section controlling the emergency alter transformer, a 100-kVA, 3-3-kV 380-V auto nators is also coupled to the one adjacent matic voltage-regulating transformer and a by an automatic coupler, which is inter motor-driven exciter, which supplies the field connected with the breaker of the first of the starboard propulsion motor as well as emergency alternator so that when one is in of the three alternators. The contents of the the other is out. aft engine room, which is associated with All the main alternators can be used for the port propulsion motor, are similar, propulsion, but the “ No. 3 ” sets, namely, except that the regulating transformer is of the 1,600-kW machine in the forward engine 600-kVA capacity and there are two exciters, room and one of the 2,160-kW machines one being standby. Either of the exciters can in the aft room, or both in parallel, can also supplv d.c. to the cargo winches and cranes. supply the ship’s network. Machine breakers The two 5,680-kW, 3-3kV synchronous motors for propulsion are located in the stem. Motors and shafting run on roller and ball races and the stem tubes are of the “ Cedars al ” type. All machines and switch rooms are cooled on the closed-air system, each machine having its own fan motor and built-in cooler. Temperatures at various points are shown on a pyrometer with a multi-way selector switch which is mounted on the switchboard. For providing supplies in emergency, two on the other alternators and the synchronous 130-kW, 380-V Diesel-alteraators are housed motors are compressed-air operated, either with the main lower-voltage switchboard locally or remotely by means of solenoids. on the deck above the forward engine room. Air pressure is about 150 lb per sq in. 332 E le c tr ic a l R eview August 30, 1946 Control of the main motors is from desks excitation ” position is reached, at which the in the engine rooms, which are each fitted hand-wheel is left until the field has discharged with duplicate instruments to enable con itself through resistances. On moving it to ditions in one engine room to be observed the “ off” position a contactor closes and in the other. The controller barrel is in puts approximately 50 per cent of the three steps and is moved clockwise for ahead excitation current on to the motor field, running and counter-clockwise for astern. which acts as a brake to the motor. If, It is interconnected with the electric telegraph however, it is to remain at the stop position from the bridge and incorrect compliance for any appreciable time the braking con with an order puts a feed into the out-of tactor may be opened by means o f a rotary balance relay of the motor, opening the d.c. switch at the main control wheel. In the excitation breaker and thus necessitating the original design the full motor field was return of the control to the “ stop ” position. left on; the resistances were installed later, On starting, the main alternators are run presumably in order to lessen the shock to up to an idling speed of 100 r.p.m. and the the motors and shafting on braking. appropriate high-voltage and excitation When the pilot has disembarked and the switches are closed. The control barrel is voyage has started, all the alternators and rotated until the pointer is at the first step motors may be paralleled together with the in the desired direction, which at the same ship’s network. This enables the machines time operates cams that close the direction to be run at maximum load and efficiency at contactors of the motor and the contactors all speeds because at low speeds machines for over-exciting the alternators. The motor may be switched out and shut down. The busbar coupling and paralleling switches are foolproof, because should the operator in an PROPULSION BUSBARS emergency manœuvre forget to open them by means of the push-buttons, the moving off ■ ¿silić the main control hand-wheel from the third PB1 position automatically opens them Paralleling Methods Alternators are paralleled from a central control point in the forward engine room. The push-buttons operating the compressed- air switches and coupling ammeters and two “ reed ’’-type frequency meters are all on one panel. A selector switch has four ways for paralleling port and starboard power net works, propulsion system and networks, network alternators and “ off.” When this Fig. 2.—Main alternator paralleling system switch is in the required position, the couplers PC.— Port and starboard propulsion busbar coupler. PC and NC (Fig. 2) are closed, bringing into NC.— Ship’s network busbar coupler. LI and L2.— Alternator circuit-breakers. A, C and S.— Switches circuit the two reactors, and when the two for connecting port and starboard propulsion busbars. networks are synchronized a switch “ S ” B, C and S.— Switches for connecting propulsion system and ship’s network. E, D and S.— Switches (Fig. 2) is closed to couple the two busbars. for connecting “ No. 3 ’’ forward and aft alternators. When the circulating currents through the reactors have died down to zero, the com now revolves as an induction motor until, pressed-air switch is closed, and the switch on reaching synchronous speed, the hand “ S ” and switches may be opened. If the wheel is turned to the second position for operator fails to open the last two switches, exciting the motor field and then to the third moving the selector switch to the off position position at which the alternator field currents does so. All circuit breakers are blast- drop to their normal value of 210 A. Engine operated through push-button control of governors are regulated by motor-operated magnetically-operated valves. Earth pro speed devices, either by push-buttons in tection of the main alternators, switchgear dividually or simultaneously from a dual and propulsion motors is on the Merz- control. Price system. To stop the motor the hand-wheel is rotated On starting from dead ship, the emergency in the opposite direction until the “ de- machines are run up to the normal speed. August 30, 1946 E lectrica l R eview 333 No. 1 will automatically switch itself on to exclusively on these circuits. For portable No. 4 busbars supplying the lighting for all and cargo lighting 220 V is stepped down to a the ship. No. 2 machine may now be 40-V earth-return system. switched on and the busbar linking switches closed, so as to supply PROPULSION BUSBARS power to the preference circuits in th e' engine rooms. The exciter V e— ...... — X ------set in the selected — X------N- ...... — > '■ ship's network engine room is then BUSBARS started by means o f a star-delta oil switch whichisleft temporarily in the “ star ” position “ »»i to obviate damage to enii the machine should a î its; fault occur during the first stages of starting. All high-voltage switches may now be closed for the machine selected and the trans Dis. formers and the Fig. 3. — Propulsion supply connections (port side) )«l distribution switches A .— Selector switch for propulsion. B.— Selector switch for kfe I for the pumps. The ship’s network. C and D .— Isolating switches in forward and selected network aft engine rooms. E.— Propulsion busbar coupler. machine No. 3 is now run up to full speed and, after closing the The rudder is electro-hydraulically operated excitation switch, the main compressed-air- having two motors driving two “ Hele-Shaw ” operated switch is closed, feeding the high- type pumps. The wheel is mechanically voltage busbars. A 700-kVA transformer coupled to a potentiometer, a duplicate of may now be switched in but, as it cannot be which is installed in the rudder machine paralleled with No. 2 emergency machine, room. Deviation of the wheel from the the latter must first be switched out by centre position unbalances a Wheatstone means of a remote-control switch, which is bridge which starts a servo-motor, which is fitted with a pilot light adjacent to the trans permitted to run until the rudder potentio former lower-voltage switch. The exciter meter assumes the position of its counterpart. oil switch is then moved to “ delta ” and The d.c. supply for the separately excited field either of the voltage-regulating transformers of the servo-motor is obtained from metal is switched in, the closing of its lower-voltage rectifiers, many of which are used in the switch automatically opening the circuit- ship, mostly in contactor coil circuits. breaker of No. 1 emergency machine. My observations have satisfied me that Auxiliary machinery, except that used for this vessel represents a step in the right cargo handling, is driven by three-phase direction in shipping and confirms my 50-cycle 300-V direct-on-line-started induc experience that for flexibility electric pro tion motors. Winches and cranes are driven pulsion cannot be surpassed. Its efficiency by d.c. 250-V motors supplied from the is high, and both running and maintenance exciters and using an earth-return system. costs are low. The cranes are fitted with three motors, one for lifting and lowering the jib, one for Training Course for Cable Jointers slewing and the other for the cargo runner. UTON Corporation electricity undertaking L is holding its second training course for Boat winches are driven by three-phase cable jointers, the first having been held during motors. last winter. The course consists o f six weeks’ lit * Lighting is at 220 V with earth return. full-time instruction and practice in l.v. cable All three phases have been taken into the jointing. In addition to trainees from the Luton undertaking, five trainees from three distribution boxes where the load is balanced neighbouring undertakings are attending the evenly. “ Stutz ” circuit-breakers are used present course. 334 E le c tr ic a l R eview August 30, 1946 I.E.E. Section Chairmen Biographies of New Officers HE new chairman of the Installations Technical College. He joined the Electrical T Section of the Institution of Electrical Apparatus Co., Ltd., in 1909 as test engineer, Engineers is Mr. J. F. Shipley, partner in the and three years later went to the Board of firm of Mackness & Shipley, consulting Trade in the Standards Laboratory. He engineers. Mr. Shipley received his technical returned to the Electrical Apparatus Co., training at Finsbury Technical College, and however, in 1914 where he became chief of from 1903 to 1914 was a member of the the Meter Test Department, chief engineer staff of the Power and of the Meter Department and sales engineer. Mining Department He is now a director of the company and of the Electrical Com sales manager of the Meter, Instrument and pany, Ltd., London, Export Department. He is a member of after which he joined technical committees of the B.S.I., E.R.A., Graham Rowe & Co., and B.E.A.M.A. of Liverpool and New The new chairman of the Radio Section, York, as chief engineer, Professor Willis Jackson, D.Sc., D.Phil., was and advised them on recently appointed to the University Chair technical problems of Electrical Engineering, tenable at the connected with mining, Imperial College of agriculture and indus Science, a position Mr. J. F. Shipley trial projects in Chile, which he is taking up Peru and Bolivia, in on October 1st next. which work the supply of power played He was educated at an important part. Manchester and Oxford On his return to this country in 1924, Universities, and was Mr. Shipley joined the late Mr. C. F. a college apprentice Mackness, first as his assistant and later as with the Metropolitan- his partner, when the firm of Mackness Vickers Electrical Co., & Shipley was founded. The firm has been Ltd. After holding retained for advice, investigation and pro appointments as lec cedure by public supply companies at home turer in electrical Prof. W illis Jackson and abroad, and has advised electrical engineering at Bradford manufacturers, civil engineers, naval archi Technical College and the Manchester College tects, engine builders, mining companies, and of Technology he joined the Metropolitan- other industrial concerns on problems of a Vickers Co. in 1936 as research engineer. technical nature. From 1934 to 1940, Two years later he became Professor of Mr. Shipley was a director of Central Electrotechnics, Manchester University. European Mines, Ltd., Professor Willis Jackson is a member of an English company the Radio Research Board. He is on the operating the Mezica Executive Committee of the N.P.L., and of lead mine near Klagen- the Central Advisory Council for England furt, which possessed of the Ministry of Education. several small hydro The chairman of the Transmission Section electric stations. He is Mr. J. A. Lee, who is construction engineer has made a detailed at the headquarters of the Central Electricity study of the design, Board in London. manufacture and use of banded pipes for I.E.E. Benevolent Fund very high pressures. T Hw£, ra,r S ,al, dil^ner dance of the Mersey ar Mr. L. J. Matthews, Mr. L. J. Matthews North Wales Centre of the I E E held c who has been elected friends by 300 mem’bers ar " X t annual golf competition he chairman of the Measurements Section for result rrac • competitors. As the 1946-47 Session, received his training been able m lurnd ^over ‘to h under Prof. Silvanus Thompson at Finsbury Benevolent Fund the sum o f £250 Inst,tutK August 30, 1946 E l e ctrica l R em ew PERSONAL and S O d A I . News of Men and Women of the Industry rB'HE Central Electricity Board has appointed Taylor, M.C. (Rhokana Corporation, Ltd.). ■ Mr. P. Gordon Hieatt, A .M .I.E .E ., to be have been appointed to the Management Com operation engineer for the Mid-East England mittee of the Copper Development Association. and North-East England grid scheme areas. Mr. E. A. Logan, M.Sc., who as reported Before joining the Board's staff in July, 19 31, last week is shortly taking up the position of Mr. Hieatt served in the Electricity Depart engineer and manager in the Electricity Supply ments of the Hackney, Croydon, Derby, Division of the Govern- Rotherham and York Corporations and with "ment of Burma, was the Northmet Power Co. In recent years he born at Newcastle- has been senior assistant operation engineer for upon-Tyne in 1901 and Mid-East England. received his education Bolton (Lancs) Corporation Electricity Com at Rutherford and mittee is to advertise for a borough electrical Armstrong Colleges. engineer in succession to Mr. H. E. Annett, After two years in the M .I.E.E., who is due to retire next January. Civil Section o f the Subject to approval by the Establishment Admiralty at H .M . Committee the position will be advertised at a Signal School, Ports basic salary of £1,600. Mr. T. Jack, A.M.I.E.E., mouth, he joined Merz deputy electrical engineer, who was to have & McLellan as assist retired at the end of this month, has been ant engineer in 1923, re-engaged for a further three months. remaining with them The following staff appointments have until 1929 when he was Mr. E. A. Logan recently been made by the Westinghouse Brake appointed chief assistant & Signal Co., L td .:— Mr. M. \V. Shorter has mains superintendent with the Yorkshire been appointed deputy general sales manager. Electric Power Co. He became resident Mr. C. F. D. Venning, commercial manager engineer with the Mid-Cumberland Electricity (Signal and Colliery Department), and Messrs. Co., Ltd., in 19 32 (being first engineer to the F. G. Hathaway and F. T. Tresize, sales engineers new company) and left in 1936 to join the (Signal and Colliery Department) at the London Erith Electricity Department of which he is engineer and manager. While at Erith he has been responsible for intensive domestic development and at the out break of the war one house in every' three had an electric cooker. Mr. Logan is a member of the Institutions of Civil and Electrical Engineers. He was awarded an I.E.E. Students’ Premium in 1929 for a paper on “ Economic Electric Transmission.” Members of the Research Committee of Associated Electrical Industries, Ltd., recently met at Lydbrook when the accompanying photograph was taken. This shows (standing, left to right): Mr. V. L. H. Plascott (general works manager, Edison Swan Cables), Mr. J. T. Kendall, Mr. E. P. Grimsdick (managing director, A.E.I., Ltd.), Dr. J. M. Dodds (M.V. Research Labor atories) and Mr. T. Wadsworth (B.T.H. Laboratories) Seated: Mr. Members of the A.E.I. Research Committee during a recent visit to Lydbrook B. G. Churcher, Mr. J. S. A. Bunting (managing director, Edison Swan office. Mr. P. Cruse has been appointed deputy Cables) and Mr. J. L. Davies. general works manager at the Chippenham Mr. R. G. Parrott, who is with the Metro- factory. politan-Vickers Electrical Export Co., Ltd., in Sir William Griffiths, D.Sc., F .R .I.C ., F.I.P, Buenos Aires, and is hon. secretary of the (Mond Nickel Co., Ltd.), Mr. H. J. Allcock Argentine Branch of the I.E.E., informs us that he M.Sc., M L Mech.E., M.I.E.E. (British Insulated has changed his address, which now' is Avenida Callender's Cables, Ltd.) and Mr. C. F. S. Pte. R. Saenz Pena 636, Buenos Aires. 336 E le c tr ic a l R eview August 30, 1946 The N.E.S.C.O.E. Association is to hold a the workpeople have presented him with a special dinner at the Royal Station Hotel, suitably engraved cigarette box and his staff Newcastle-upon-Tyne, on Wednesday, October colleagues have given him a wireless set. Mr. 2nd (not October 1st as originally announced), Krause has been succeeded by Mr. J. Donkin, for the purpose of welcoming Lt. Col. S. E. B.Sc., A. M.I.E.E., A.M.I.Mech.E., who has Monkhouse, M .I.E.E., as a new member of the been an assistant works manager at the switch Association on the occasion of his retirement gear works for the past ten years. from the managing directorship of the North- Eastern Electric Supply Co. Mr. J. R. Beard, Mr. R. P. Wingate, who has recently been M.Sc., M.I.E.E., vice-president of the Associa demobilized from the R .A .F . after six years' tion, will be in the chair. service, has resigned his position as assistant public lighting engineer to the North Eastern Sir Edwin Herbert has l?een appointed a . Electric Supply Co.. Ltd., to join the Advisory director of the Broadcast Relay Service, Ltd. Lighting Service of the British Thomson- Major W. Lewthwaite, M .C ., who has been in Houston Co., Ltd., as lighting engineer at charge of the Buying Department of the Witton the Newcastle office. group of engineering works of the General Electric Co., Ltd., for the past thirty-five years, Mr. F. D. Sarjeant, for forty-three years shift engineer at the St. Peter's power station of the Isle of Thanet Electric Supply Co., Ltd., has retired. He joined the company in 1903 when it was purely a traction company, operating the Thanet tramways which were scrapped in 1937. Mr. Alexander Maxwell has retired from the position of director of engineering of the Edison Electric Institute after fifty years’ association with the electrical utility industry in the United States. He is succeeded by his principal assistant, Mr. Harry Kent, who has been with the Institute and its predecessor, the National Electric Light Association, since 1924. Major W. Lewthwaite Mr. A. J. D. Krause Lt. Col. S. Mortimer, R .E., has been appointed retired on July 31st. He will, however, con municipal electrical engineer and transport tinue to act as chairman of the G .E .C . Buyers' manager, Penang, Malaya, and is now being Conference, which is attended by representatives released from the service. In 1924 Col. of the various factories of the G .E .C . and its Mortimer, who was with associated companies. He is a past-president the Yorkshire Electric of the Purchasing Officers' Association of Great Power Co., went to Britain. Major Lewthwaite served from 1914 Malaya to take up his to 1918 in the Machine Gun Corps, being first appointment with awarded the M.C. and mentioned in dispatches the Penang Municipal (he was severely wounded), and from 1939 to ity, with whom he served 1942 he was second-in-command of the 11th until the war came to Warwicks. Malaya, when he was commissioned in the Mr. A . J. D. Krause retired from the Royal Engineers. Re G.E.C. on July 31st, after fifty-one years’ turning to Malaya early service of which the greater part was spent as in September, 1945, he works manager of the company’s switchgear was appointed C.R.E. works at Witton.' Mr. Krause joined the 136 Works (Malaya) and Lt. Col. S. Mortim er company in 1895 and was transferred to the was responsible for Peel Works (then the main G .E .C . factory) at the early rehabilitation and operation of Salford; at this period the consumers’ supply electrical undertakings throughout Malaya under voltage was being changed over from 100/125 the British Military Administration. to 200/250 volts, and the consequent redesign of electrical accessories was Mr. Krause’s main Mr. J. Chadwick, A .M .C .T ., A .R .I.C ., has concern. In 1905 he started a new department resigned his position as manager and chief for the manufacture of house service cut-outs, chemist to the Lloyd Chromium Plating Co., switches, fans, searchlights, etc., and four years Failsworth, Lancs, to take up an appointment later this department was transferred to Witton. as technical representative with R. Cruickshank, Expansion was rapid, and in 19 11 Mr. Krause Ltd., electroplating engineers, Birmingham. took charge of the house service cut-outs and About 3,000 people attended the seventh switch section, which became the new Switch annual sports day held by the sports and social gear Department. To mark his resignation, organization of Automatic Telephone & Electric August 30, 1946 E le ctrica l R eview 337 Co., Ltd., at Liverpool on August 17th. The King's Lynn; two assistant engineers for the weather was kind for this meeting, the first the Middlesex County Architect’s Department company has held since 1939, and the presence (salary £545, plus bonus of £60) ; cable engineer of many of the employees’ wives and families (£750-£850), and transformer engineer made it as much a social affair as a sporting (£750-£850) for the Central Electricity Board; occasion. The A .T .M . Silver Band played selections throughout the afternoon. The organizing officials had almost as strenuous a time as the competitors in ensuring the smooth running of an extensive programme. Interde partmental competition was keen for the "G a n n ” trophy, which was won by Department 01 (Tools and Methods). A baby show and an ankle contest were popular events. The prizes were presented by Lady Eades, wife of Sir Thomas Eades, vice- Lady Eades, accompanied by Sir Thom as Eades, vice-chairman and managing director of the Autom atic Telephone Co., Ltd., presenting chairman and managing the prizes at the com pany’s annual sports director of the company. Vice-Admiral C. Holland, C.B., who com Chair of Electrical Engineering at the University manded H .M .S. A rk Royal during the war, has of Birmingham (£1,650). joined A. C. Cossor, Ltd. Obituary Sir Claude Gibb, chairman of C. A. Parsons & Co., Ltd., has left for Australia on a business Mr. Matthew Stevenson, who has died at expedition. Kilmarnock, was the senior partner in the firm of Messrs. R. Stevenson & Sons, electrical Mr. A. G. W. Goulding has resigned his engineers. appointment as director of the General Lighting Mr. Arthur Grocott, representative of the Equipment Co., Ltd., and has been appointed Edison Swan Electric Co., Ltd., in the Leeds manager of the electrical department of Smith area, died on August 22nd. He had served & Son (Stoke Newington), Ltd. with the British Thomson-Houston & Ediswan Councillor Mrs. S. Buckley, J.P., of Blackburn, companies for twenty-eight years in the West who has been selected as Blackburn's new Riding area. mayoress for 1946-7 is the mother of Mr. W. Will.— Mr. Francis Joseph Clayton, electrical Buckley, mains superintendent in the Luton engineer, Keighley, left £ 3,337, with net per Corporation Electricity Department. Mrs. sonalty £3,288. Buckley is a member of the Electrical Association for Women. Electrical Benevolence Glasgow Corporation Transport Committee has reported the resignation of Mr. W. M. Hall, ■ T U R I N G the year ended December 31st last automobile engineer, on his appointment as the Electrical Industries Benevolent deputy general manager of the Liverpool Association received many substantial gifts from Corporation Transport Department which we firms and individuals in the industry and these reported in a recent issue. are set out in the Year Book just published by the Association. It is seen that the total income Mr. C. E. Dryden, formerly of Scarthoe, rose from £ 2 1,3 5 5 to £23,0 51. A t the same Grimsby, who has been with the Huddersfield time the expenditure increased from £15,056 to Corporation Electricity Department for some £16,779, leaving a balance of £6,272, against years, has been appointed electrical inspector £6,299. A curve included in the Year Book with the Bedford Corporation, Electricity shows how the amounts paid out yearly to Department. beneficiaries have risen since 19 32; the 1945 Appointments Vacant.— Among the vacant total was £12,151. positions advertised in this issue are the follow The sympathetic and practical way in which ing;—Burgh electrical engineer for Oban; the Association renders assistance is again electrical engineer and manager for Leek Urban demonstrated by the stories of actual cases District Council; mains superintendent for which have arisen during the year. A uçusi 30. 1046 338 E le c tr ic a l R eview There was a drastic reduction in expenditure Correspondence during the war. the totals being as roHovvs. L e tte r s sJr.-rzM hear the w riters' ram es ami addresses, not 1939J 1O. £18.900.815: 1940-41. £1 760,500; necessarily for pubticathm. Responsibility cannot be 1941-42. £6.99S.29i; 1942-43. £9.184.592 : acceptedfo r correspondents' opinions. |9 <: ■ ■ £3.113.953. In 1944-45. however, the Fluorescent Lighting Effects pre-war figure was exceeded, the total being ¿yS.33~.81S. of which loans for generating plant ECURRIN’G headache, with its con- accounted for £20.323.383. Tne 1945-46 total comitam ill-health due to eye strain by of £5~.652.3~5 was swollen by sanctions to the use of fluorescent lighting, is mostly loans applied for by the North ot Scotland attributed to the low lighting intensity and Hvdro-Electric Board to the extent of £8.931.~60. wrongly placed or designed fittings, a delect which included £6.300.000 for buildings I gener common to all forms of illumination. ation) and £2.450.000 for generating plant. A separate table shows sanctions to borrowing The short wave-lengths of ultra-violet bv the Central Electricity Board, the annual radiation generated in these tubes are regarded amounts being as follow s:— 19.’ S -’ 9. nil: as a further cause of distress. The frequency 1939-40. £1.000.000: 1940-41. £1.000.000: alternations, of fifty cycles, flash distinctly 1941-42. £4.000.000: 1942-43. £9.~00i000: to the eye in a cold gas tube. The hot wire 1943—14. £2.250.000; 1944-45. £2.025.000: and of a filament lamp retains its heat and damps 1945-16. £100.000. The 1941-42 figure relates out the effect of periodicity . This flashing to the loan adv anced by the Treasury in respect would seem to be the real cause of strain to of war emergency extensions. The high total shown for 1942-43 was mainly in respect of the muscles of the eyes, focusing to rapid expenditure on the grid system incurred sub pulsations of extreme light intensity . This stantially before the war and it also included a adverse effect is multiplied when the vision is sum o f £900.000 cov ering the extension o f the trained on some object revolving at syn Earley station. The original instalment for this chronous speed or oscillating at certain station was included in the sanction to the functions o f the periodicity'. borrowing of £4.000.000 for war emergency S heffield. H . H . stations, but the extension is not included in the Treasury advance. A further extension of Shortage of Supplies the Earlev station w as provided for to the extent ARIOUS reasons and excuses ha\e been of £1.075.000 in 1944-45. A third table shows the total amounts sanc put forward for the extreme shortage of tioned each quarter during the eight years. electrical accessories, cables and apparatus, none of which is satisfactory to harassed contractors. ASLIB Conference It is also very strange that while multiple 'I ’ HE 1946 conference of the Association of stores, ironmongers, drysalters. and even " Special Libraries and Information Bureaux pawnbrokers, are able to make a good display will be held from September 13th to 15th. 1946. at the Fy vie Hall, of the Regent Street of electrical goods, w hen contractors appeal Polytechnic. London. W .l. A conversazione to manufacturers and w holesalers for a share and tea for members will take place on Friday . o f these things, they are unsuccessful. September 13th. at 4 p.m.. followed by the Contractors are already having to dispense annual general meeting at 6 p.m. Formal pro with staff due to the continued delay in ceedings will open on the following morning at deliveries and if something is not done to 10.30 with an opening address by Sir Reginald improve this position very quickly, mass Ssradling. C.B.. Nl.C.. D.Sc.. F.R.S.. president unemployment will be inevitable. elect of Aslib. The afternoon proceedings will include two papers on information services in Glasgow. A l e x . M il n e . S e n r . relation to industry, one by Sir Arthur Fleming and Miss B. M. Dent, of the Metropolitan-Vickers Electricity Supply Loans Electrical Co.. Ltd.. and the other by Professor R. S. Hutton. In the evening a paper on Eight Years' Sanctions Reviewed machines and tables will be given by Dr. L. J. Ij’TATlSTlCS have been issued by the Elee- Comrie of the Scientific Computing Service. tricity Commissioners of the loans sanc Sunday "s discussions will be on documentation tioned by them on the application of electricity in Europe, technical dictionaries and glossaries, supply authorities from 1938-39 to 1945-16 and the setting up o f a film library. inclusive. The first table relates to public M osi o f the papers will be circulated in authorities excluding the Central Electricity advance to those w ho apply tor them, at a cost Board. It shows that in 1933-39 the total ot 5s. per set. The inclusive fee will be £1 10s. amount sanctioned was £35.288.803. the prin tor members and i2 for non-members. Full cipal items being £8.107.154 for mains and details can be obtained from the Aslib Office. 52 services and £6.125.393 for generating plant. Bloomsbury Street. W .C.l. August 30, 1946 E lectrica l R eview 339 Overseas Electrical Trade Recovery During July N June last, in common with most other pre-war monthly average of £242,716 to I classes, exports of electrical goods, £449,052. British India was an outstanding apparatus and machinery were halted in customer for radio equipment (£99,571); their upward movement mainly because of South Africa's share was valued at £69,730 the loss of four working days. Last month and that of Sweden at £52,530. South Africa the trend was resumed and electrical exports took the largest quantity oT telegraph and went up by about £1J million as compared telephone apparatus (£57,599), Australia with June; the total was nearly £3 ipillion (£51,518) being second. above'the monthly average of 1938. The cable group as a whole showed an Reference to Table I discloses that the advance from the 1938 monthly average of rise in the total to £4,795,283 was contributed £359,881 to £1,187,631 in July, the most T a b l e I . — E l e c t r i c a l E x p o r t s a n d I m p o r t s Exports Imports Class Monthly Monthly July, 1946 July, 1945 A v„ 1938 July, 1946 July, 1945 Av., 1938 £ £ £ £ £ £ Telegraph and telephone wires and cables, submarine 66,286 45,746 17,289 ) Ditto, not submarine 373,758 40,515 71,803 ( Wires and cables other than telephone and - 2,608 52,436 31,246 telegraph, rubber insulated 267,230 417,727 117,533 | Ditto, insulation other than rubber 480,357 168,949 153,256 Radio apparatus 670,768 131,828 149,593 332,587 1,249,838 75,160 Telegraph and telephone apparatus other than radio 449,052 125,268 242,716 1,248 33,854 9,243 Electric carbons, furnace ** * 6,718 53 4,054 Other electric carbons * * * 6,333 6,495 2,301 Electric lamps 132,290 75,325 49,440 80 788 10,265 Other lighting apparatus 192,480 41,319 48,565 911 49,455 38,662 Primary batteries 39,748 12,046 13,572 16 16,790 3,549 Accumulators, portable 132,800 41,183 28,874 *** Ditto, stationary 20,652 3,591 19,773 * ** Ditto, parts and accessories 60,506 19,561 * * ** Electric cooking and heating apparatus 101,756 22,000 30,664 ** * Commercial electrical instruments, including ammeters, voltmeters, etc., and parts 49,147 17,974 15,878 House service meters 49,690 12,835 15,791 f 9,471 26,247 32,057 Other electrical instruments 44,729 5,254 9,612 s X-ray apparatus, vacuum tubes and parts . . 83,229 8,963 4,881 23,406 11,844 9,734 Insulating materials, not elsewhere specified 113,022 28,883 19,343 * * * Unclassified electrical goods and apparatus 322,045 113,791 110,615 10,539 464,401 42,630 Generators, complete, up to 200 kW 86,391 25,572 38,071 *«* Ditto, over 200 kW 154,468 12,571 119,079 * ** Ditto, parts 47,221 — * ** * Motors 269,752 93,253 145,045 5,484 16,542 26,033 Convertors and transformers 151,810 88,097 101,304 * * * Rectifiers for power-house use 11,994 1,934 3,463 *** Motor starting and controlling gear 88,805 39,168 50,866 ** * Switchgear and switchboards other than telegraph or telephone 171,810 121,963 184,533 ** * Other electrical machinery 14,381 5,035 15,497 3,000 263,023 14,455 Electric vacuum cleaners 99,532 7,513 26,662 85 20 7,519 Other electrically - operated portable appliances 49,574 3,742 10,394 3,840 2,066 17,108 Total 4,795,283 1,731,606 1,814,112 406,326 2,193,852 324,016 * Not classified separately. to by most of the individual items. The outstanding rises having occurred in the most noteworthy increase was in radio submarine and non-rubber-insulated sections. apparatus which by rising from a 1938 South Africa appears to have been the monthly average of £149,593 to £670,768 leading importer of British cables with India became the largest specified item. At the a close second. Argentina took non-rubber- same time the allied class, telegraph and insulated cables to the value of £47,332. telephone apparatus, also rose from the There were several other noteworthy 340 E l e c tr ic a l R eview August 30, 1946 increases and reference may be made par to £82,509) but this was offset by falls in ticularly to cooking and heating apparatus exports to South Africa from £39,992 to (from £30,664 pre-war monthly average to £5,908 and to Australia from £28,606 to £101,756) ; X-ray apparatus (from £4,881 £16,536. Exports of generators to foreign to £83,229); electric lamps (from £49,440 to countries made a good advance—from £132,290); and insulating materials (from £25,112 to £138,677. „ £19,343 to £113,022). As regards motors, India was the principal In the machinery section the increase in customer taking £67,470 in July, against a pen value was not so pronounced; the total rose 1938 monthly average of £17,920. New s® Zealand’s share amounted to £21,039 (against T a b l e II.—D istribution of Exports of E lectrical £6,061). Shipments to Australia declined but „V Goods and A pparatus against this there was a rise from £44,725 to . Destination July, July, Monthly £94,983 in exports of motors to foreign if5 1946 . 1945 Av., 1938 countries. £ £ £ Taking electrical goods as a whole, South ts Eire 51,123 44,864 37,562 Channel Islands 44,800 11,184 11,965 Africa was the leading buyer (£483,771), '¡it Palestine 10 1,2 0 2 19,852 8,371 followed by India (£412,523) and (some 7-- British West Africa 43,988 24,819 12,864 Union of South Africa 483,771 94,653 157,602 way behind) by Australia, Denmark, New *2 Southern Rhodesia 21,532 8,275 9,574 Zealand, Spain, Belgium, British Malaya, 7S%, British East Africa . . 18,690 42,472 7,830 British India 412,523 229,104 122,928 Egypt, China and Palestine—all over j*of British Malaya 117,420 — 32,280 £ 100 ,000. ¡<± Ceylon 26,347 6 ,1 1 2 14,931 Hong Kong 38,461 — 12,874 Although imports shrank considerably as 777 Australia 161,198 165,838 196,823 compared with July last year, the total of (¿V New Zealand 124,419 79,485 95,851 Canada 9,618 38,154 12,482 £397,842 was still above the pre-war monthly rs- British West Indies 11,6 6 8 5,230 12,887 average, due to heavier purchases of radio Other British Countries 84,114 28,307 26,336 Soviet Union 41,517 342,000 36,780 apparatus. The only other substantial item w ODinc 7 Finland 42,758 __ 5,824 was X-ray apparatus. ’ ¡jj® Sweden 92,161 1,856 13,735 Norway 66,497 2,573 12,582 Denmark 138,390 __ 18,282 Poland 19,727 — 9,626 Netherlands 84,085 — 20,190 Street Lighting \n Belgium 117,483 12,073 10,874 France 60,666 3,249 15,674 Ministry of Transport Assumes Control & j( French West and Equatorial Africa 1,059 3,049 400 ¥ N a circular to public lighting authorities p Switzerland 17,748 — 3,572 ® the Minister of Transport announces that his Portugal 78,328 3,320 6,498 PortugueseEast Africa 4,422 — 6,924 M inistry has become the central authority for gildi Spain 117,494 11,095 3,808 street fighting and has taken over from the I ao Italy 2,113 2,996 5,659 Home Office the allocation o f iron, steel and IB») Czechoslovakia 9,743 1,067 7,205 Yugoslavia 20,131 — 1,471 timber for street fighting equipment. The ®p Greece 24,822 214 . 4,888 Minister asks the authorities to give special p -’ Roumania —— 13,350 consideration to the securing of reasonable Turkey 51,905 708 7,633 Egypt 114,741 46,298 12,872 uniformity in fighting standards as a means of 7;.: Iraq 79,072 2,651 5,456 removing a source of danger and inconvenience ~7 Iran 99,015 26,575 16,330 to road users. In this connection Mr. Barnes ¿ 7 China 113,849 — 4,042 United States of urges the adoption as soon as practicable >■; America 9,196 7,209 5,546 of the recommendations which were made See Chile 18,830 364 6,635 by the 1937 Departmental Committee on -ate: Brazil 26,915 2,879 11,12 3 Argentine Republic 99,916 26,863 45,387 Street Lighting. Other Foreign Necessary authorization o f street lighting pp! Countries 346,088 37,370 33,672 schemes under Defence Regulation 56A will be Total 3,649,545 1,332,758 1,119,200 issued by the Ministry of Transport, except for Jj;: schemes on new housing sites or streets other than public highways which will be dealt with \L from £657,858 to £1,096,622, the principal by the Minister of Health and the Secretary of advance being in motors—from £145,045 to State for Scotland. r'Tli> £269,752. The Minister stresses the need for continued .7 Actually the exports of this class were less economy in street lighting, pointing out that the in volume than pre-war, the figures being measurers taken last winter resulted in the .19f] 3,514 tons in July against 3,720 tons as the halving of the pre-war rate of fuel consumption. Sithe 1938 monthly average, generators being the It is thought that this economy should be Tier 5 achieved by turning out street lights at midnight ^ only item showing an increase. Shipments wherever practicable, rather than by reducing ff®? of generators to India were up (from £23,626 reasonable standards of lighting. August 30, 1946 LiLECTRICAL REVIEW 341 ( D lP ll ltLi; si ml IMHSTKV Fuel Economy Conference. Mr. Shinwell in Scotland. Model Engineer Exhibition since 1939 in the United States has been prepared by the National Committee of that country and D D E D skill and greater scope o f activities is obtainable at 6d. net from the address given V resulting from wartime experiences are above. conspicuous at the first Model Engineer E x hibition held since 1938. Organized jointly by “ Electrical Review” index Percival Marshall & Co., Ltd. (proprietors of the Model Engineer), the Society of Model and Readers who require the index to Vol. Experimental Engineers and the Society of CXXXV11I (January-June, 1946) should apply Model Aeronautical Engineers, this is the for copies to the Publisher, Electrical Review, twenty-first exhibition of its kind and the first Dorset House, Stamford Street, London, S.E.l. to benefit by the additional space made available by a change from the old to the new Horticultural Bristol Electricity Headquarters Hall, Westminster. Probably the most spec tacular exhibits from the electrical point of view Development of the Bristol Corporation are a replica of a modern cinema, complete Electricity Department’s future headquarters with coloured stage lighting and screen showing in Colston Avenue is to begin in the autumn. 16 mm films, and a model of a London Except for part o f the top floor, which is used Passenger Transport escalator. In addition to a by the department as a meter and test room, profusion of electrically operated trains, trams, the building is at present occupied by the Bristol trolley-buses, ships, etc., electrical items include Aeroplane Co., for workshops. The company, a minute mains-driven electric motor measuring however, is expected to vacate the building at only about i in. across, a vertical steam-driven the end of September or October. It is dynamo set, an electric clock and a table lamp. anticipated that the transfer of the main offices Apart from the association and private exhibits and showrooms from Dorset House, Clifton, there are about fifty trade stands on which will take place piecemeal, and will occupy may be seen not only complete models but also eighteen months to two years altogether. their various components, tools and other workshop materials, drawing office equipment, New I.M.E.A. Address etc. The exhibition closes to-morrow, August Having been unable to secure a renewal of 31 st. the lease of its headquarter offices at Wellington House, Strand, the I.M .E .A . has taken tem New Broadcast Transmitters porary offices at 254-260, Earl’s Court Road, A new 100-kW broadcasting station has London, S.W.5. The telephone number is recently been opened in Ceylon by the Army Frobisher 2232, Ext. 12. Welfare Service. The contract was placed during the latter period of the war with Marconi's Communications in Wartime Wireless Telegraph Co., Ltd., and the company’s In the modern world speed of communication 100-kW short-wave broadcast transmitter, is of the first importance; in wartime it becomes Type T B S .801, was installed on a site near vital. Proof o f this is provided by the story of Colombo. Cable & Wireless, Ltd., told in a book entitled Marconi’s have also received a contract “ The Thin Red Lines,” by Charles Graves, (valued at £40,000) from the South African published by the Standard Art Book Co., Ltd., Broadcasting Corporation for six additional 10, Great Queen Street, W.C.2 (184 pp., 27 transmitters. The equipment will consist of illustrations, 5s.). This follows the course of the company's standard 5-kW medium-wave the war from beginning to end, showing how broadcasting equipments, Type T B M .6 71. The the company’s services entered into practically first two equipments, which are now under every phase and operation. construction at the Marconi Works at Chelms ford, are due for dispatch by the end of Septem Hospital Electrification ber, and will be installed by the South African Broadcasting Corporation’s engineers on sites In our article on the Queen Elizabeth Hospital near Johannesburg. The remaining four, to be on August 16th some of the equipment of the dispatched in the spring of 1947, are destined Physiotherapy Department was described as for Cape Town and other sites. being supplied by “ Sollux, Ltd.” Actually it was made by Hanovia, Ltd., whose registered World Fuel Conference trade mark for infra-red lamps is “ Sollux.” By invitati'on of the Netherlands National Imports into Ceylon Committee, the Fuel Economy Conference ot the World Power Conference will be held at The Government o f Ceylon has inserted the The Hague, Holland, from September 2nd to following items, among others, in Open General 10th, 1947. A two-days’ visit is to be made to Licence No. 4 (applicable to the British Empire the Netherlands State Coal Mines at Lutterade. except Canada and Newfoundland):—Electric Further particulars may be obtained from the telegraph and telephone instruments and British N ational Committee, World Power apparatus (except batteries) other than wireless Conference, 36, Kingsway, London W.C.2. apparatus; electric control and switchgear; The first of a series of reports on fuel economy electric generators, alternators, dynamos and 342 Electrical Review August 30, 1946 exciters; electric motors; electric transformers in company with Mr. W. M. Bell Macdonald, and convertors; and machinery falling under the convener of the Electricity Committee, Mr. the heading “ Electrical machinery not elsewhere J. S. Pickles, county electrical engineer, and specified ” in Class III, Group G , o f the classi other officials he made a survey o f the county’s fication in the Ceylon Customs Tariff. electricity scheme by which 9,000 homes are receiving supply and 751 farms were, using Radio Newspaper electricity. Later he described the Dumfries shire scheme as the most perfect example of When the Queen Elizabeth sails from South electricity distribution there was in the country, ampton on October 16th on her first " civilian ” and said the cost to the consum er' seemed voyage her passengers will have the benefit o f extremely reasonable. From what he had seen the latest news picked up by radio and printed of the Dumfries-shire scheme he w'as convinced in the Ocean Times. This newspaper will be that electricity generated and distributed on a the first to reappear among the newspapers national scale, with the provision of autonomy w hich w-ere published at sea on a number of the in the areas, and with due regard to the need larger vessels before the war. The Ocean Times for maintaining local and personal contact, was is published by Wireless Press, Ltd., one o f the going to be a most profitable undertaking for Associated Iliffe group. the State. Welding Light Alloys London Factory in W artime An attractively produced and illustrated book A symposium on the welding of light alloys of 76 pages entitled “ Morgans at War ” is being organized by the British Welding records the production of a variety' of equip Research Association on October 16th and 17th ment, much needed in wartime, in spite of in the Henry Jarvis Hall o f the Royal Institute constant evening attack from the air. It is the of British Architects, 66, Portland Place, story of one of many factories in London’s London, W .l. The four sessions will deal with 1 several target areas when the workers had to ( 1 ) development of high strength aluminium be convinced that the making of “ bits and alloys for welding; (2) pressure welding and flash welding of fight alloys; (3) spot welding pieces,” seemingly so insignificant, helped of light alloys; and (4) the welding of magnesium to form the thread which completed the grand pattern. This vignette of the war as seen from alloys. There will be demonstrations and the riverside factory of the Morgan Crucible exhibits at the offices of the Association, 29, Park Crescent, W .l. Although accommodation Co., Ltd., includes charts which throw inter is limited a certain number of tickets will be esting sidelights on the volume and variety of available upon application to the Association. production. Reports on German Industry New Simplex Bristol Premises Among the latest reports by investigating Among the many Bristol buildings destroyed teams upon various departments of German during the war was the Victoria Street branch industry are the following. A few copies are of the Simplex Electric Co., Ltd. The company available from the Stationery Office at the prices has since occupied temporary' quarters at shown and the reports may also be seen at a Bedminster Parade, but has now opened new number of the principal libraries:— B.I.O.S. 567, offices and stores at Nos. 1, 3 and 5, LawTence “ Resistors and Fixed Capacitors Produced in Hill, Bristol, 5 (telephone: 57811-12; telegrams: Germany ” (7s. 6d.); C.I.O.S.I-1, “ Radar and “ Simplex, Bristol ”). Fully comprehensive Controlled Missiles” (5s. 6d.); F.I.A.T. 224, stocks will be laid down as soon as supplies “ Survey of Electrical Control Devices in permit. Germany ” (2s. 6d.); F.I.A.T. 670, “ Survey of a New Storage Battery ” (6d.). Coil Winder—Correction Trade Publications A n inaccuracy in our description o f the “ Quickway ” coil winder (Electrical Review, British Insulated Callender’s Cables, Ltd., August 16th, p. 276) is pointed out by the Norfolk House, Norfolk Street, London, W.C.2. Midland Dynamo Co., Ltd. The twm uprights —Illustrated brochure (No. 205) on capacitors which support the shafts of the rotor to" be for power factor correction above and below wound are not clamped to the bench, as stated, ground in coal mines. but are part of the machine itself, the whole Aerial!te, Ltd., Castle Works, Stalybridge, of which is self-contained and suitable for Cheshire.— Price list of cables and flexibles of mounting on any existing bench. many varieties. British Diamix, Ltd., Metrum Works, Beatty Mr. Shin well’s Scottish Tour Street, Camden Town, London, N.W.l.— Illustrated leaflet on domestic irons, fires and On August 19th Mr. Shinwell, Minister of boiling rings; also wholesale and retail price Fuel and Power, inspecting the power and heat fists. plant at the Kirkcaldy works of Michael Nairn Imperial Chemical Industries, Ltd., Metals & Co., Ltd., said that he thought that if a Division, Kynoch Works, Witton, Birmingham, similar process for heating and power could be 6'— Brochure classifying and summarizing the adopted throughout industry they could estimate physical properties of “ Kynal ” and “ Kynal- a saving of 30,000,000 tons of coal a year. core wrought aluminium alloys, tabulated in The combined power and heating plant eight schedules, to enable constructional engin- thermal efficiency average is claimed to be 67 eers ® n(I designers to select those alloys most per cent. suitable for specific requirements compared Continuing his Scottish tour Mr. Shinwell with other ^metals. Also a brochure on visited Dumfries-shire on August 22nd, when Kumanol, a new copper base electrical August 30, 1946 E le c tr ic a l R eview 343 ■tlor. lit«,!, resistance alloy of very low temperature co dropped by 40 per cent is stressed in a striking leer. t efficient available as tape, strip and wire which coloured poster issued by the Electricity Supply Companies’ Public Relations Committee. A icon? can be readily jointed by welding without special precautions. graph, printed in nine colours, shows the trend »met Applicants for copies of these publications of costs for the last fifteen years of coal, Duntj should write on their firms’ business notepaper. materials, wages, cost of living, and electricity. At the foot appears the message “ Don’t tatty British Trade Mission to Russia Nationalize Sound Enterprise.” Copies may be obtained from the Electricity Supply Com «'»5 A Reuter message from Moscow states that panies’ Public Relations Committee, c/o Mr. e hiij. a group of British electrical engineering experts, Hubert Williams, 32, Great Ormonde Street, w«te headed by Sir George Nelson, chairman of the W .C .l. JIM, English Electric Co., Ltd., was due to arrive '111% in Moscow on Sunday last and is, according to Trade Announcement 0 thea British sources in Moscow, prepared to discuss onticii] “ substantial orders.” The visit, made at the The Agro Electrical Co., Ltd., informs us :nah»L invitation of the Soviet Government, marks an that the arrangement by which its sales were important stage in the renewal and extension conducted by T.M.C.-Harwell (Sales), Ltd., has of Anglo-Soviet trade. now ceased and it has established its own sales organization under the management of Mr. C. J. Wall» New Electricity Poster Abercrombie. As from September 2nd, the i a t V r company’s London offices will be at 7, Maddox The fact that while every other commodity Street, Regent Street, W .l (telephone: M ayfair has risen in price since 19 31 electricity has 4068/9). «I. Ilia isLo* iters ts ; 'i "litiri ait Municipal Reports led fen? Sheffield kW set at Neepsend is proceeding and three as see'y-. 190,000 lb per hr boilers are also to be installed ;aaC® flOR the third successive year the accounts i thm -3|i I of the Sheffield Electricity Department show at the station, two other boilers at Blackburn a loss, which on this occasion has reached the Meadows being nearly completed at the date of substantial figure of £ 18 1,3 14 . In view of this the report. adverse trend the City Council last March otai raised the charges. During the war, with a Sunderland ' r a J large increase in the power load, the average The past year is described by the borough b of Ges price received per kW h sold fell as low as electrical engineer and general manager at is ??:: 0-55d. (in 1940-41), since when it has risen to Sunderland (M r. W. A . Royle) as the most eaifes iSesei 0-66d., a figure which, however, is not much successful since the inception of the undertaking —B.L03? higher than in the last pre-war year—0-615d.—- fifty-one years ago. New records were set is K b and compares with 0-707d. ten years ago. up for total sales, 97-2 million kW h; revenue I, “RmE Revenue from electricity supply in 1945-46 (electricity supply), £ 4 13 ,3 3 7 ; net trading H U 3 amounted to £2,140,205 (against £ 2 ,113,4 5 2 in surplus, £47,194; and contribution to the il Dun the previous year) and the aggregate income rates, £12,500. The quantity of electricity sold 70, “Saw (including that from the motor and installation was 3-6 million kWh (3-9 per cent) more than sections) was £2,222,079 (£2,173,469). Working in 1944-45, this being accounted for principally costs totalled £1,903,659 (£1,821,816) and loan by increases of 1-6 million kW h in domestic charges £499,735 (£498,109). Against the supplies and 1-2 million for public lighting. H& I .ah, It deficiency o f £ 18 1,3 14 is set special income of Since 1939 sales have risen by 44-2 per cent £99,086, reducing the amount to be transferred although, owing to wartime restrictions, the from the reserve fund to £82,228. number of consumers has only increased from The report of the undertaking, of which Mr. 26,682 to 28,434. Against a rise o f 130 per i, Suit)® J. R. Struthers is general manager and engineer, cent in the cost of coal the average price obtained jite# includes a number of graphs comparing the per kW h sold by the undertaking has advanced financial and operating figures for the war years. by only 13-6 per cent (from 0-899d. to l-021d. A curve of electricity sold indicates that the per kWh). peak was reached in 1943-44, the subsequent fall Last year the undertaking generated 150-9 being due to the decrease in the power load. million kWh against 148-5 million kWh in Last year 775 8 million kWh was sold against 1944-45. As the maximum demand on kWh L it* 835-0 million in the previous year, a decrease of sent out fell from 38,850 to 36,980 kW, the , BinaiEp 59-2 million kWh (7 per cent). The number of load factor improved from 40-66 to 43-24 tuaife consumers increased by 1,5 1 1 to 166,814. per cent. The total revenue was £466,367 and "I:" As regards generation, the maximum demand (compared with £422,787 in the previous year) lattliK on the stations rose from 226,400 kW to 233,610 and working costs amounted to £354,102 itioial ■< kW, although production fell from 1,18 7-3 (£320,156). After providing for loan charges, \ alloys* :s co# million to 1,077-8 million kWh. The total income tax, etc., £ 34,322.(£28,782) there was a plant in commission during the year was net surplus on the year’s working of £47,194 292,000 kW . The installation of a new 50,000- (£40,887). 344 E le c tr ic a l R eview August 30, 1946 Electricity in Swit*erlandi Consumption for Domestic Purposes By “ Electricus ” TB1HE Union of Swiss Electricity Under- low rates per kWh, so that the revenue takings recently published statistical from water-heating supplies accounts for only about 15 per cent of the total. Lighting returns of domestic electricity consumption (SSSli for 1943, which covered about 85 per cent in turn is responsible for about 16 per cent of the total population of 4{- millions.1 As of the total consumption and 56 per cent of ; in Switzerland the bulk of the domestic the total revenue. supplies is metered and billed according The overall average of 1,155 kWh per consumer equals the contemporary sods ir T a b l e 1— D o m e s t i c A p p l i a n c e s United States level, though the composition2 differs ; less than 10 ¡¡si® Average 311 lh' Number per Average annual per cent of the consumption there Appliance 100 con kW rating consumption, sumers kWh being attributed to water-heating, with about 20 per cent to refriger $ full Cookers 20-2 5-5 1240 Storage water-heaters 23-7 1-7 2350 ators, and 40 per cent to lighting Miscellaneous ther and radio. 4 for 11 mal appliances . . 157-0 0-6 93 ik layo Small motors 25 1 0-22 36 As, so far, no reliable in Refrigerators 2-7 0-29 390 formation is available in respect % o f this country, it is difficult to the use made (different charges for lighting, to make comparisons. For 1937-38, including small appliances, and for cooking, the Electricity Commissioners’ Returns gave 3 10 water-heating, etc.), reliable average con an average of 572 kWh per domestic con- sumptions per consumer and per appliance sumer, and it is to be hoped that detailed ^ #l11 can be worked out for the various uses. statistical data for subsequent years will be Incidentally, present trends are towards published before long. The figure for 1943 ‘ abandoning the multiple-tariff system in may be expected to be substantially higher, t a favour of two-part or block tariffs, with but a large proportion is used for space- 1 perhaps only one separate meter for the heating. In a recent analysis3 o f the load I' C01 water-heater circuit. conditions on the system of the Northmet «fdrií The accompanying tables are based on the Power Company, for instance, it is estimated M l data given in the source referred to. The that in 1938-39 over 40 per cent of the total Hn® total number of households involved is domestic consumption was for space-heating, sala ti 922,000 with an average of 3 -9 persons each. Detailed statistical information, comparable tail (j? Ik T a b l e 2 — T o t a l C o n s u m p t i o n a n d R e v e n u e ! more Annual consumption tilkit Application Total Per consumer Proportion Proportion Average lining i i kWh x 10« kWh Per cent Cooking 2 3 10 250 21-7 14-1 0-9 Water-heating 512-0 555 48-0 14-7 0-4 Miscellaneous thermal 135-0 146 12-7 12-9 1 -4 Small motors 8-3 9 0-8 1 -3 2-3 Refrigeration 9-6 10 0-9 0-9 1 -5 L ig h tin g ...... 170-0 185 15-9 56-1 4-9 Total 1,065-9 1,155 100-0 100 0 1-5 t Converted at the rate £1 = 17-4 fr. The number of water-heaters installed, to that reproduced above, may be expected as shown in Table 1, is remarkable and is to emerge from the sampling survey organized shown in Table 2 to account for nearly by the E.R.A. and referred to in the Electrical half the total domestic consumption. On Review of July 12th, page 52. the other hand, the extensive use of load control and time-of-day tariffs for this i-D E A - (I> Bulletin A.S.E., 1946, No. 10, p. 263. (2) Edison Electric Institute Bulletin, August, 1945,p,227. purpose makes it possible to quote relatively (3) E.R.A. Report Ref. K./T108. August 30, 1946 E lectrical R eview 345 All-Electric Hairy Fannins' Comprehensive Pembrokeshire Installation HERE can be few farms with a more 4-kW immersion heaters, while for heating T complete and up-to-date electrical in water required for mixing the calves’ food stallation than that to be seen at Mr. W. L. there is a Burco washboiler. Preparation of Davies's farm at Pantyderi, near Cardigan. the cattle food is undertaken with the aid of a Keeping a herd of fifty-five Friesian and Guernsey cows (thirty-five now in milk) Mr. Davies has succeeded by electrical methods in reducing, manual work to the bare minimum, improving the quality and cleanliness of his milk, and incidentally winning the prize last year for the highest yield in the county for a herd of under twenty full year cows, the Friesian and Guernsey herds being treated as separate herds for the competition. The layout of the milking parlour, which is equipped with a good fluorescent light ing installation, is systematically de signed to ensure that the milking is carried out hygien- hammer mill (driven by ically, without any a 15-H.P., 2,500 r.p.m handling and in motor) and a pulping the shortest time machine (5-H.P., 1,400 possible. The six- r.p.m. motor). unit combine In addition to dairy milker, driven by a farming, over 800 acre: 3-H.P., 1,430 r.p.m. of arable land are unde motor, milking six cows at a time and simultaneously re cording the yield. Top : Fluorescent light Six more cows ing is installed in the milking parlour which is await their turn in equipped with a six-unit adjoining stalls, combine milker while a similar Centre Cooler and 350-cu ft refrigerator for number is being storing milk awaiting cleaned in the dispatch Right : One-ton-an-hour washing stalls. grain dryer For cooling the milk, brine from a 350-cu ft “ Frozt-ed- Aer ” refrigerator (with a compressor driven by a 2-H.P. motor) is passed by a pump (¿-H.P., 1,425 r.p.m. motor) through a cooler, the refrigeration space being utilized for storing the milk awaiting dispatch. A 20-kW G.E.C. electrode boiler provides steam for both sterilizing chest and jets for can sterilizing. For the purpose of providing the hot water cultivation. Combine harvesting is adopted, required for washing the dairy utensils there working in conjunction with a 1-ton-an-hour is a 35-gal copper cylinder fitted with three Mather & Platt grain dryer (5-H.P. motor). 346 E l e c tr ic a l R eview August 30, 1946 An electric lift is shortly to be installed in the granary. A room used for potato sprouting “ Britain Can Make It ” is warmed during frosty periods by six 2£-kW FFICIENCY, economy and appearance G.E.C. fan-heater units. E have all been taken into consideration in The main metal-clad switchboards used to the selection o f the electrical items which are to control all this be included in the “ Britain Can plant has been Make It ” Exhibition which will be built up from opened by the King at the Victoria and Albert Museum on September G.E.C. equip 24 th. A pre-view of selected ment by the exhibits revealed a remarkably high West Cambrian standard of design in all types of Powei Co.,Ltd., apparatus, with manufacturers in which has been many cases showing a tendency not responsible to adhere too closely to conven for installing tional ideas and practices. the apparatus. Ease of cleaning, neat appearance, more even distribution of oven The total con- heat, and better control of both oven and hot-plates, particularly at the lower temperatures, are features upon which cooker designers have concentrated mainly. The drop-down oven door appears to be favoured; also the high- level oven which obviates stooping. Kettles are probably the item in which the makers have displayed the most originality and while there many “ stream-lined ” versions o f the more or less generally Above: In the cupboard be accepted designs, among apparatus hind this sterilizing chest is a 35-gal copper cylinder fitted selected are a model incorporating with three 4-kW immersion special steam-guard handles and heaters to provide hot water an upright type intended for use on for washing dairy utensils. Left : Electrode boiler (20 the table as a hot-water jug. kW) providing steam for Am ong toasters is a horizontal model sterilizing suitable for toasting sandwiches. Practically all the irons have nected load is thermostatic control. Streamlining is in about 80 kW evidence and other noteworthy features are and the maxi pleasing coloured finishes, improved heat dis mum demand tribution over the sole-plate, more rapid heating is approximately 50 kW. Last year the up, grooved sole-plates which facilitate ironing consumption of electricity for all purposes under buttons, double thumb-rests to help left- handed users, handles specially designed to was 57,040 kWh, the cost being in the prevent wrist strain, improved connectors, a neighbourhood of £267. swivel device which makes it impossible for the flexible-lead to get knotted or tangled, and a light to illuminate the work. Improved appear Royal Agricultural Show, 1947 ance, more efficient and convenient operation, and the incorporation of water pumps are L A N S are in hand for the next Show P of the Royal Agricultural Society of characteristics of the washing machines which England to be held at Lincoln from July lst-4th, are to be displayed. 1947. Although the Show will have to be on Am ong fires there seems a strong preference “ austerity” lines compared with pre-war Royal tor the reflector type with rod-type elements and Shows, the Society will do its utmost to provide the many attractive designs include several a worthy representation of livestock and models for wall-mounting in bathrooms, etc. displays of the new machinery which made Am ong the latter is one with an ingenious possible the advance of British agriculture during handle which serves both as a switch and for the war. Special emphasis will be laid on the educational aspects of the Show and the results tilting. Both bakelite and tubular steel have of recent agricultural research. The show- been utilized to good effect in some instances. ground, which has been placed at the Society’s The appeal of the modern convector with disposal by the City of Lincoln, will occupy illuminated grilles has also not been overlooked. 100 acres. The last Royal Show took place in A refrigerator priced at only £ 16 will be another Windsor Great Park in 1939. attraction. August 30, 1946 E le c tr ic a l R eview 347 n t K i n s u p p l y Revised Glasgow Estimates. New Poplar Power Station. Colchester.—Villagers Press for Elec consulting engineers are to obtain tenders t r i c i t y — The Electricity Supply Committee has from C. A. Parsons & Co., Ltd., for the turbo had to refuse a supply of electricity to eight alternator, Babcock & Wilcox, Ltd., for the villages because, it is stated, in present circum two boiler units, and John Mowlem & Co., Ltd., Sfe stances it is not possible to embark on develop for the construction of any necessary building U ment schemes. Supplies will be given when it and civil engineering work. is economic to do so, as soon as the. position Hull.— Store Building. —The Electricity lit®; improves with regard to materials, and the Committee has approved a revised estimate of tactorcQ mains generally have been reinforced to carry the additional loads. In reply to further £30,000 for the erection of central stores in representations regarding the difficulty of Ryde Avenue. 10 (OR carrying on farming with oil lamps and candles Mansfield.—Loan Application. — The Elec 5. it is stated that new houses take precedence tricity Committee is to apply to the Electricity ‘•JWH for materials. Commissioners for sanction to borrow £17,750 »nt* for laying 11,000-V cables and £2,650 for III Glasgow.—Revised Estimate for New switchgear and metering equipment in connec S t a t i o n . — Based on tender prices received for tion with a supply of electricity to the Mansfield p«ili the principal contracts the capital expenditure Colliery of the Bolsover Colliery Co. atm, t on the construction of the first section of the Middlesbrough.— Loan for Meters. — The id new Braehead generating station is estimated at Town Council has applied to the Electricity £5,279,000. This is made up as follows: W bs Commissioners for sanction to borrow £5,000 Buildings, £ 1,110 ,20 0 ; generating plant, for electricity meters. l o t i Si £692,000; boiler plant, £2,008,600; coal and ash handling plant, £261,300; circulating water Oldham.— L o a n s . — The Electricity Committee eö iioo^a system, £343,500 ; switchgear, £178,000 ; has received sanction to borrow £147,841 in tî ¡ta: general electrical works, £166,500; other works, connection with the extensions to the 33-kV ring £39,000; and contingencies, etc., £479,900. system. The Committee has applied for The earlier estimate was £4,672,800. sanction to borrow £2,644 for erecting and With reference to the decision to accept the equipping of an electricity substation at tender amounting to £1,180,240 by John Royton. Mowlem & Co., Ltd., for the civil engineering Poplar.— New Generating Station. — Mr. and building works the consulting engineers, Robert Illingworth, O.B.E., the borough Merz & McLellan, have reported that it has electrical engineer and general manager at not been possible to obtain a definite decision from the Clyde Trust on the design of the sections of the quay wall incorporating the inlet and outlet works of the station on account of restrictions likely to iwd heatè be imposed by the : rapid i E Ministry of Civil A via tion on the development itatiiiB of the Clyde Trust lands 5 to lip at Braehead. Conse quently it is proposed to delete the river works from the contract and after making allowance for this the amount of roved appa the contract is now ml ops* £1,009,112. :r puopir E x t e n s io n o f S t a t i o n . achinö «1> —The Central Elec tricity Board has direc Artist’s impression of the new Poplar power station ng prefen» ted the Corporation to element) o extend the Braehead station by the installation, Poplar, has sent us an impression by Mr. ready for commercial operation in September, lo d e is t J. D. M. Harvey of the borough’s new gener 1949, of one 50,000-kW (m.c.r.) turbo-alternator ating station which is to be situated on the site brooms, s set, and two boiler units each of 300,000 lb of the present Export Dock of the East India ro ins® of steam per hr maximum continuous evapora Docks, Port of London Authority. The con itch and t tive capacity. The town clerk has been sulting architects for the exterior are Farmer & ir sieel 1» instructed to make application to the Elec Dark, F.R.I.B.A., and the architect is Mr. D. ie » l a # tricity Commissioners for their consent to Hubert Lewis. John Bruce & Staff, Swansea, recto r the extension and for authority to borrow are the consulting engineers, and the civil £2,098,000. The general manager and the jirerJooi1 consultants are L. G. Mouchel & Partners. 348 E l e c t r ic a l R eview August 30, 1946 Scotland.— Submarine Cable-laying. — The barge is provided with oil-fired boilers pro laying of 11-kV submarine cables under ducing steam at a pressure of 829 lb per sq in., the narrows of the Kyles of Bute and in the a land-type turbine and a 13,800-V alternator. Firth of Clyde from Kerrylamont Bay, Bute, By means of a 37,500-kVA transformer the north of Kilchattan, to a point on the Great power can be stepped up for distribution Cumbrae west of Millport, has now been com purposes to either 69, 11 5 or 138 kV. pleted. This operation is part of the North of New Zealand.— Power Projects. — Mr. R. Scotland Hydro-Electric Board’s distribution Semple, Minister of Works, told the Hquse of scheme for Buteshire and South Cowal. One Representatives recently that investigations new area in Bute has for the past fortnight been were now being carried out at Coal Crook on supplied with current from an overhead trans the upper part of the Clutha River where it was mission service. Other sections will be served proposed to build a 300,000-kW power station— before winter. The Distribution Scheme was the largest single station of its kind in New authorized in January of this year. Zealand. • A general survey had revealed that Stirling.— Change-over. —The Town Council the potential hydro-electric resources of the has approved an expenditure of £18,870 in South Island were three times a^ great as those connection with the change-over from d.c. to of the North Island, and it would ultimately be a.c. supply. a question of taking the factory life of the Torquay.— Supply Extension. — The Elec country to where the power was. When the tricity Committee is to extend the distribution Waikato River had been harnessed, there system at Watcombe, including the provision of would be very few other major schemes that a substation, at a cost of £8,607. could be tackled in the North Island. New Zealand, the Minister pointed out, was depend Tottenham. — Electric Cookers. — The ing more and more each year on hydro-electric Housing Committee has authorized the pur power.— Reuter's Trade Service (Wellington). chase of 180 electric cookers from the Northmet Power Co. Spain.— Power Production. — During recent years, largely due to the great industrial expan- Overseas sioa in the country, there has been a marked Belgium.—Emergency Floating Power increase in electric power output, a total of S t a t i o n s . — In the annual report of the Belgian 4,775 million kW h, having been attained in electrical financing company, “ Sofina,” it is 1944 as compared with 3,111 million kWh in mentioned that two emergency floating power 1939, notwithstanding coal supply difficulties stations, of American construction, have been during the war. During both 1944 and 1945 in use in Belgium for some time, one at the exceptional droughts caused a big drop in the power station at Schelle and the other at Langer- output of the country’s hydro-electric installa brugge. The generating plants are mounted on tions, but in spite of this the production during barges measuring about 314 ft in length and last year is estimated to have amounted to 49 ft in width and having a draft of 12 ft. Each 4,067 million kWh. Street Lighting* in Manchester Plans for Conversion to Electricity I AST April the Manchester General and It is proposed that the first one or two roads Parliamentary Committee submitted a re should be dealt with by direct labour so that port to the City Council on the street lighting accurate cost figures may be available, after system in which it contended that the case for which consideration could be given to the changing over to electricity was unanswerable. employment of contractors to accelerate the It has now approved a scheme suggested by the rate of progress. Electricity Committee embodying a programme Due regard must be paid to the redevelopment for the conversion of the gas street lighting proposals so that any road scheduled for system to electricity. widening or closing within the next five to The Electricity Committee considers that seven years should not be included in the the initial work should be confined to roads programme, conversion being postponed until with street traction poles, these for the most the alterations have actually been initiated. part being main roads which are likely to be Where road excavators are required for undisturbed for a number of years. With additions or alterations to electric cables, the adequate labour and materials, the lighting of opportunity should be taken to install electric these roads can be converted easily and rapidly street lighting conductors at low cost, either by using overhead conductors supported on the as a preliminary step or as part of an immediate poles. The number of lighting points is con conversion. siderable, but it is estimated that these sections By this scheme the Electricity Committee can be completed in about two years. This considers it should be possible to convert the scheme has the advantage that those units main road lighting to electricity comparatively consuming considerable quantities of gas will quickly, leaving the conversion of side roads— 151 be dealt with first, thus ensuring early achieve particularly in residential areas— to be dealt pi" ment of the maximum fuel economy at a with progressively in consultation with the other it ! fi relatively low cost. committees concerned. August 30, 1946 E lec tr ic a l R eview 349 RECENT MTR0DIICTION8 Notes on New Electrical and Allied Products High-frequency Heater energize the filaments and furnish 240 V for operating contactors and auxiliaries with a A HIGH-FREQUENCY generator for the voltage stabilizing transformer for the oscillator eddy current heating of metals and dielectric filaments. heating is announced by the General Electric The circuit is fully protected; the large Co., L t d . , Magnet House, Kingsway, London, contactor panel also carries an overload protec W.C.2. The cabinet is self-contained, requiring tion relay and a cut-out in case of failure of the only connection to power mains, three-phase at cooling air supply. The anode circuits of the 360 to 440 V ; an electrical filter minimizes rectifier valves are fitted with special high- radio-frequency leakage into the mains. The voltage fuses. Controls comprise a rotary output is 25 kW continuous rating at from “ on-off ” switch, high-voltage “ start-stop ” 2 to 15 Mc/s, the input approximating to 40 kW contactor push-buttons and the output power at full load. control. Subsidiary controls, also on the front The one-piece dust-proof body of welded panel, consist of an interlock key switch and steel has a base-plate fitted with four hoisting contactor buttons for overload trip resetting. A pre-set “ high power— low power ” switch is situated inside the power compartment door. A Chamberlain & Hookham process timer can be very simply incorporated and the set can be remotely actuated from the working position by means of a control box connected by a flexible lead to a socket on the front panel of the set. The oscillator valves are air cooled by a motor- driven fan, the air intake being through a series of filters and the exhaust passes out through a duct. The G.E.C. is also marketing 5-kW and 1-kW generators of a similar type. Terminal Blocks The multi-way terminal blocks for 15 and 30 A offered by the Precision Components Co., Aller, Langport, Somerset, are made of moulded bakelite with plated brass terminals and screws. Holes for fixing screws are pro vided between every two terminal segments so Single unit dielectric and eddy current heating generator of 25 kW continuous rating that each block can be cut into several sections for twelve one-way, six two-way or four three- bollards. A ll controls are on the front panel way connections. and the interior is partitioned into two sections, the larger containing the power and high- Telephone Cable voltage rectifier equipment, while the smaller Cable insulated with materials that are more houses the high-frequency oscillator gear. readily obtainable just now than cotton, wax Access to the former is by a door in the front and lead is announced by Aerialite, Ltd., panel and to the latter through two removable Castle Works, Stalybridge, Cheshire, for panels on each side of the output terminals, internally wiring buildings for private telephone which are recessed on the right-hand side of the and call-bell communication systems. cabinet. Both door and panels have “ car- This cable is made up of 0-064 in. (central door ” handles with Yale type locks; in addition, battery) wires, two pairs and one single, insu the door has an interlocking key which must be lated with a single layer of vulcanized rubber inserted in a socket on the switch panel before with a left-hand lay. Around this core are the set can be used and, as a further safeguard, wrapped, with a right-hand lay, twelve pairs of the door and panels have electrical safety 12 -5 lb conductors which are also rubber switches which automatically disconnect the insulated. One layer o f proofed tape is then high voltage if they are opened. applied and the whole finally p.v.c. sheathed. The self-oscillator employs two ACT 16 The identification colour code normally “ Osram ” valves in push-pull, with crossed used for this class of cable is strictly adhered capacity feed-back, while the power supply to to by a provisionally patented method, which the oscillator anodes is taken from a three-phase consists of applying the rubber compound in full-wave rectifier employing six G U 2 1 “ Osram” two different colours, for dual coloured wires; mercury vapour valves. Separate transformers thus a red-green wire will be covered for half 35 0 E le c tr ic a l R eview August 30, 1946 its circumference with red and the other half House, Victoria Street, London, S.W.l, for with green compound. The insulation re household and medical uses. The pad is rated sistance between pairs, layers and earth averages at 35 W and is 12 in. square, having a glass-silk 1,650 megohms per 1,000 yards at 60 deg F. cover bag which may be washed in cold soapy Other sizes of the same type of cable are to be water. A flat push-bar switch is fitted 5 ft away developed. from the pad along the flexible connecting cable, an unusually generous length o f which is pro- J Starting Fluorescent Lamps vided— 18 feet. The interval that elapses between the switching A sheet aluminium bed warmer o f large lit on o f a tubular fluorescent lamp and the heating area, which is energized at low voltage, i commencement of its glow represents the time is announced under the trade name of “ Welec ” which must be allowed for the anodes to reach by F r a n k W esterm an (W h o lesale), L t d ., 94, their emitting temperature; hence the use of Dale End, Birmingham, 4. bi-metallic delay switches. The need for the The associated step-down transformer, which ^ latter can be avoided by the employment of is plug connected to an ordinary socket outlet, an instantaneous - start ballasting assembly made by Barlitf. Lamps, Ltd., Bath Street Works, Hanley, Stoke-on-Trent, whose London distri butors are E ng in es & Electrics, Ltd., 22, Stafford Place, West minster, S .W .l. A patented resonant circuit is utilized to apply voltage high enough to ionize the gas within the tube sufficiently to start a glow discharge between Low-voltage bed warmer, showing transformer on bedside table the anode plates at both ends of the low-voltage tube. To favour the is totally enclosed in a small domed case that immediate change-over of the discharge from a can conveniently stand on the bedside table so glow to an arc with initially cold cathodes, a that the cable lead entering the bed does not special surface structure is given to the latter have to withstand more than 25 V, the loading which prevents uniform electronic emission so being 35 W. that, by self multiplication, a hot spot of low- The dissipation area of the metal “ cushion ” voltage drop is formed on the cathode. is claimed to be so related to the position of the heating element as to prevent the generation Bed Warmers of excessive temperatures. For this reason it is Two thermostats are provided for regulating considered that thermostatic control is un necessary. the temperature o f the “ Bedcomfort ” now being made by S. B. J a ck so n , L t d ., Windsor Control Relay iijp A small magnetic relay of the general purpose :|®I type E is being produced by Electro Methods, * L t d . , 220, The Vale, Hendon, London, N.W.I1, for operating alarms and audible signals, small single-phase motors and lighting circuits, ^ actuated by two-wire push buttons, pressure, ad float, thermostatic and toggle switches. The relay’s overall dimensions are 2-75 by 2 by 1.5 in., so that it can be mounted in con- jjj, fined space. It is available for d.c. from 1 to .si 70 V and a.c. from 3 to 250 V, coil consumption s!» being 1 W and 2-75 VA respectively with 2-A % rating. The self-aligning solid armature with 4’ simplified hinge design has double-pole, double throw silver contacts; all steel parts are plated. Double purpose solder/screw terminals are .. provided and in the base there are two fixing holes. Various modifications include terminal studs sit for panel mounting and a plug-in model to fit 'mtv, Thermostatic “ Bedcomfort ” warming pad mto^“ international octal ” valve holders. UîK August 30, 1946 E lectrica l R eview 351 S.W.1, ^¡sj asiy FINANCIAL, SECTION coUJ «il Company News. Stock Exchange Activities. 'Äks, for 1944. Provision is made for obsolescence, Reports and Dividends contingencies and deferred repairs, but the ntt of J Richardsons, Westgarth & Co., Ltd.— Presiding directors state that owing to reduction in l'owvoy at the annual meeting held on Monday last output, with consequent effect upon earning loill Col. H. M. Stobart (chairman) said that while capacity, they do not propose to recommend a land work at the Hartlepool works was neces further dividend for the year. (An interim sarily subordinated to marine during the war a of per cent has been paid.) A balance of ■fonntr, r considerable output was achieved. In all, £16,534 (£14,799) is carried forward. Reference thirteen sets of turbines, one 30,000-kW alter is made in the report to the shortage of materials socketoa nator, ten turbo-blowers and compressors, six which is handicapping the company’s efforts to gas exhausters and boosters, twelve condensing attain full production. plants and 196 pressure chargers were completed, The Kalgoorlie Electric Power & Lighting and in addition a large volume of work was Corporation, Ltd., reports a net profit for 1945, carried out in the supply of spares and main before taxation, of £24,090, as compared with tenance of existing plants. Contacts with their £25,500 for 1944. To this is added £11,000 Swiss associates, Brown Boveri & Co., Baden, taxation reserve not required. Depreciation curtailed during the war, had now been re reserve receives £14,000, general reserve £9,000, sumed. Since the end of the war, the Land and U.K. taxation absorbs £4,327. As we Department had reverted to its original function, have already announced, the dividend for the and substantial orders had been received for year is raised from 5 per cent to 7 per cent less turbo-alternators, condensing plant, compressors tax. The balance carried forward is £9,950 and other auxiliary plant, as well as complete (against £9,406 brought in). boiler house installations, and before the end of hostilities in Europe provision was made for • Lisbon Electric Tramways, Ltd.—After pro the urgent restoration of electric power by means viding for taxation and transferring £55,000 of a number of transportable power stations for (same) to general and depreciation reserve the the Ministry of Supply. net profit for 1945 was £54,240 (against £78,827 for 1944). Revenue rose by £124,996 but there Newton Brothers (Derby), Ltd.— Presiding at was a greater increase in working expenses— the annual general meeting on August 22nd, £149,583— due to higher wages, etc. The Mr. P. C. Cooper-Parry, chairman, said that final ordinary dividend of 2 \ per cent tax free the reduction in the trading profit from £100,367 maintains the year’s distribution at 5 per cent to £59,558 was to be expected on the cancellation free of tax, and £35,371 (£41,449) is carried lïïï.iktlf of many Government contracts following the forward. end of hostilities. The adverse effects of such Aron Electricity Meter, Ltd., announces a cancellations would be felt more in the current trading loss o f £ 33,4 71 for the year ended :aad‘flÉ year. During the year considerable progress March 31st last. In the preceding year there 11k postai had been made in bringing plant and machinery was a profit of £19,266. After allowing for an a ike sffi up to the latest standards and £ 16 ,0 17 had been estimated E.P .T. repayment of £62,576 there is spent on new plant. The re-equipment was F o r f c w i a surplus of £ 12,563 and it is proposed to pay continuing. Trading was difficult at the lit m ii s . an ordinary dividend of 10 per cent, against moment. The specialized equipment supplied 15 per cent. in large quantities during the war was generally ela y of the type required for post-war needs though Berry’s Electric, Ltd., is raising its dividend on a much reduced scale. Their customers for from 10 to 12 J per cent for the past year. iepàW this class of equipment were in process of Eiicnto Mne developing new designs needing in turn new London Associated Electricity Undertakings, Ltd., is paying an interim dividend of per cent. D, Lotion W . patterns and types which the company’s technical liiHpàï staff had to develop through the experimental No interim was paid last year but the final distribution was 6 per cent. lijkùt * stages before quantity manufacture could be I klltoti f » reached. The Nigerian Electricity Supply Corporation, Ltd., has announced a final dividend of 7 per cent jtsàit _ J. Stone & Co., Ltd.— In his speech at the and a bonus of 2 i per cent, making 12 ^ per nions trc -'ii annual meeting the chairman (M r. K . H. Preston) referred to developments on the light cent for the year (against 10 per cent). Leitoilii"' metal side of the company’s business, which The Clyde Valley Electrical Power Co. has for l o f ® had included the establishment, in conjunction declared an interim ordinary dividend of 3 per V, coil cous® with Fry’s Diecastings, Ltd., of Stone-Fry, Ltd., cent (unchanged). ¡petluH1 for the manufacture of pressure diecastings in magnesium. A n important branch of their Telephone Rentals, Ltd., is paying a final Id ¡ri»»11 dividend of 6 per cent, maintaining the distribu oiblt-P1^ work was the production of electrical equipment for railways. Deferred replacement pro tion for the year at 10 per cent. el parts ar( Is grammes -were now being put into effect by the The British Power & Light Corporation, Ltd., :if terminé. railways and it was expected that this depart is paying an interim ordinary dividend of 3 per :rt aiii*1’ ment of their business would be kept busy for cent (against 2 per cent). some time to come. The British Oxygen Co., Ltd., is again paying ¡e lermiul ; Veritys, Ltd., report a net profit, after taxation, an interim dividend of 8 per cent on the ordinary ¡■¡Il of £18,550 for the past year, against £21,658 stock. s|«He» 352 E le c tr ic a l R eview August 30, 1946 The North Eastern Electric Supply Co., Ltd., is Mason at 6a, George Street, Croydon, Surrey, maintaining its interim ordinary dividend at as the Standard Wholesale Electrical Co. 22 per cent. Directors: D. K. Mason (permanent managing The West London & Provincial Electric & director) and K. D. Mason. Regd. office: 6a, General Trust, Ltd., has declared an interim' George Street, Croydon, Surrey. dividend of 2 per cent (unchanged). Electrowares, Ltd.— Registered August 14th. The Madras Electric Tramways, Ltd., is again Capital, £1,000. Wholesalers and distributors paying a dividend of 10 per cent free of tax. of electrical equipment, manufacturers and distributors of, and dealers in, electric lamps and W . Canning & Co., Ltd., are again paying fittings, etc. Directors: W. E. F. Tipper, A. L. (ÍK an interim dividend of 5 per cent. Storey and F. W. Coel. Regd. office: 231, je t Waterloo Road, S.E.l. jsli New Companies Hackston & Heywood Electric Co., Ltd.— Gudlite, Ltd.— Registered July 15th. Capital, Registered August 13th. Capital, £200. To £1,000. To acquire the business of an electrical carry on business as indicated by the title. engineer carried on by J. T. Gullett at Club Directors: E. Hackston and J. H. Heywood. ¿91 Buildings, Fair Road, Wibsey, Bradford. Regd. office: 14, Links Avenue, Failsworth, J&C Manchester. Directors: J. T. Gullett and Edith A. Gullett. iifc Regd. office: 14, Fair Road, Wibsey, Bradford. Laurence Electrical Products, Ltd.— Registered S*1 Electradio Services, Ltd.— Registered July 15th. August 7th. Capital, £1,000. Inventors, Capital, £1,000. Manufacturers of, and dealers designers and manufacturers of, agents for, in, artificial lighting apparatus, electrical plant, and dealers in, hair waving, drying and dressing wireless, etc. Directors: FI. P. L. Langmead, machinery and equipment, etc. Directors: R. R. S. Tiley, and R. J. Y. Tiley. Regd. office: S. S. Levy and Marie Windsor. Regd. office: 1, Barrack Road, Exeter. 55, Humberstone Gate, Leicester. Jack Lever, Ltd.—Registered July 18th. Harry Marsh & Company (Electricians), Ltd.— Capital, £400. Manufacturers, buyers and Registered August 6th. Capital, £1,000. To sellers of radio, television, electronic and acquire the business o f an electrician heretofore sound equipment and electrical appliances, carried on by Harry Marsh at 49, Abbeydale domestic and commercial heating and lighting, Road, Sheffield. Directors: H. Marsh (per etc. Directors: R. Lever, D. Sefton and E. G. manent) and P. J. Marsh. Regd. office: 49, Warland. Regd. office: 156, North End Road, Abbeydale Road, Sheffield. West Kensington, W.14. Mayor Smith, Ltd.— Registered August 6th. Allen-Harris, Ltd.— Registered July 23rd. Capital, £1,000. To carry on the business of Capital, £1,000. Electrical, radio and television electricians, electrical contractors, radio en engineers, etc. D irectors: W. G . Allen and gineers, etc. Directors: C. P. Smith and D. R. J. B. Harris. Regd. office: Station Approach, Mayor. Regd. office: 323, Claughton Road, Radlett, Herts. Birkenhead. D. R. Gray, Ltd.—Registered July 24th. Shaws (Coalville), Ltd.— Registered July 23rd. Capital, £1,500. Electrical, radio, public works Capital, £2,000. Electrical and mechanical and engineering contractors, floodlighting, stage engineers, manufacturers of, and dealers in, and theatre lighting engineers, etc. Joint electrical goods, fittings and accessories, etc. managing directors: D. R. Gray and J. Darling. Directors: S. W. C. Shaw and R. T. Humphrey, Regd. office: 25, Oldfield Circus, Greenford, Regd. office: 52, Silver Street, Whitwick, Middlesex. Coalville, Leicester. Grantham Electrical Engineering Co., Ltd.— Fred Wood (Electrical), Ltd.— Registered Registered July 26th. Capital, £1,000. To August 16th. Capital, £1,200. To acquire the carry on business as indicated by the title. business of electrical contractors and radio Directors: J. S. Stokes, Eileen E. Stokes, S. engineers carried on by F. J. Wood and P. F. Pask and Monica H. Pask. Regd. office: 21, W ood as “ Fred W ood & Son ” at 295a, Watergate, Grantham, Lincs. Vicarage Road, King's Heath, Birmingham. Directors: F. J. Wood, P. F. Wood and A. J. Bernard Installations (Electrical), Ltd. — Slater. Regd. office: 295a, Vicarage Road, Registered July 30th. Capital, £1,000. To King’s Heath, Birmingham. acquire the business of the Bernard Electric Co. carried on by Bernard Schypiro at 265, Bland Bros. (Electrical), Ltd.— Registered Cheetham Hill Road, Manchester, and to carry August 2nd. Capital, £4,000. Electrical on the business of manufacturers, sellers, hirers, engineers and general electrical installation installers and maintainers of electrical goods, contractors, etc. Directors: H. P. Bland, etc. Directors: B. Schypiro and S. Rubinstein. J. P. R. Bland and G. C. St. G. Bland. Regd. Regd. office: 32, Cheetham Hill Road, office: 8, Castle Gates, Shrewsbury. Manchester. Gillies & Irving, Ltd.— Registered August 3rd. Philips Transmission, Ltd. — Registered Capital, £1,000. Electrical engineers and con August 14th. Capital, £25,000. To conduct tractors, mechanical engineers, etc. Directors: research into, design, manufacture and main S. H. Gillies and H. Irving. Regd. office: 93, tain apparatus and equipment for radiolocation The Albany, Old Hall Street, Liverpool, 3. and aiding navigation, etc. Directors: N. Terrett (Engineers), Ltd.— Registered July Gunn and T. E. Goldup. Regd. office: Spencer 31st. Capital, £500. Electrical engineers and House, South Place, E.C.2. contractors, etc. Directors: W. G. Terrett, Standard Wholesale Electrical (Supplies) Co., Doris M. Allison, H. L. Rink and H. Freer. Ltd,— Registered August 8th. Capital, £8,000. Regd. office: 196, Dawes Road, Fulham, To acquire the business carried on by D. M. S.W.6. Angus! 30, 1946 E l e c t r i c a l R e v ie w 353 or less permanently. They are content to STOCKS AND SHARES accept the modest yield which present prices r| 'H E feature in the Stock Exchange markets afford, for the sake of obtaining security and is the steadiness with which prices are conservation of their capital. The yield on maintained in the face of a pronounced quietude British Insulated Callenders cannot be calculated of business in most departments. The cheap because, so far, the company has declared only money policy of the Government serves to an interim dividend of 4 per cent for the eighteen fortify gilt-edged securities, and the effect of months ending with this year. the holiday season does not entirely prevent a good deal o f money being employed in the Cable Makers’ Shares purchase of front rank ordinary shares. British Insulated Callender’s financial year Nationalization as a cause for nervousness is ends with the calendar, and it is not expected itt- exercising no particular influence for the time that the final dividend for 1946 will be announced ■ being. until next June. Anticipation looks for per iiyij Companies’ reports and their dividends are cent, and if this should be realized the yield at ahij mostly satisfactory. With the re-institution of 49s., the present price, would be £3 Is. 3d. per Stock Exchange fortnightly settlements at the cent. Henley’s at 28s. 6d. afford 3^ per cent— end of November, it is thought that activity will from which it is evident that hopefulness fei® be encouraged. budgets for a higher dividend on British Insu LSBS •: Electricity Supply lated than the per cent just mentioned. L'i"5 Telegraph Constructions at 58s. 9d.— shares are Dtras The market in electricity supply shares available at that price— give £3 8s. Od. Johnson showed little appreciable reaction to the dis & Phillips at 85s. 6d. pay 3^ per cent. A higher closure of a 6-7 per cent increase in the electricity yield is obtainable from Siemens, the return in it.li generated during the first seven months of this this case being £4 3s. 4d. at 36s. ■I DDI ■ year, as compared with the same period of 1945. limit Investment still requires a return of between 4 Metal Industries Sm and 4 | per cent from the ordinary stocks of the Metal Industries have raised the final dividend leading supply companies. The lower of those from 6 to 7 per cent, making 10 per cent for two limits is the yield on Electrical Distribution the year. According to the preliminary figures, of Yorkshire, Midland Electric Power, and the year’s profits advanced by £28,000 to Yorkshire Electric Power which are all quoted at £295,000. Am ong the company’s interests are about 44s. 6d. and receive 9 per cent dividend. all the ordinary stock of Electrical Switchgear A 44 per cent return is offered by the three Lon & Associated Manufacturers, and nearly one don companies— “ Counties ” at 44s., “ City million ordinary stock of the British Oxygen Lights ” at 31s., and London Electrics at 26s. 6d. Company. The latter investment appears in North Easterns, at 31s., give a similar yield. the balance sheet at a figure equal to 54s. 8d. London Associated Electric have resumed the per stock unit. The market value is nearer £5 payment of interim dividends with a distribution per unit. Igranic Electric is another subsidiary BSOKM of 2i per c6nt, which compares with the regular o f Metal Industries. r. Husjs pre-war rate of 3 per cent. The British Power L & Light Corporation has raised its interim British Thermostat Capital distribution from 2 to 3 per cent. For last Dealings began last week in the 4\ per cent L-R^s • year the company paid a total of 8 per cent preference shares offered at 2 1 s. to ordinary 0 &*}£* (against 7 per cent for the previous year). 5 ifiU shareholders of the British Thermostat Co. At Communications the premium of Is. 6d. at which the new shares are changing hands, the yield works out at In the Home Railway market, London exactly 4 per cent. The ordinary capital of the Passenger Transport “ C ” has been changing to d ia i* company is £150,000, and it has received ansli hands at 60, an improvement on the month. annual dividends of 18 j per cent for the last Southern Railway stocks have gone back, the eight years. The new preference capital is the preferred being 1 down at 70 J, the 5 per cent L-fes only prior charge. I. EC preference 4 lower at 1103. Cable & Wireless ll iss preference shows a gain of 2 i at 11 7 , but Globe Manufacturing and Equipment 1 P-* Telegraph ordinary reacted Is. d. to 42s. d. 6 6 In the higher-priced shares of the equipment Blai » Marconi Marine Communications and Oriental group, International Combustion at are 5s. ff- i Telephones are both down, the latter losing down since a month ago. Midland Manufactur si AcfS 2s. 9d. at 58s. 9d. issS' ing put on i, rising to 8J. Hopkinsons at 5£ c. Gilt-Edged Ordinary are the fraction lower. General Electrics show jiJiS, a fall o f at 5 but the 6} per cent preference jrp o o l- The market for manufacturing and equipment at 37s. 6d. are up Is. Ever Ready have been a companies has assumed a position of being dull market, easing off to 47s. 6d. English p m almost entirely an investment area. People who gnflCiS Electric at 63s. 6d. and Enfield Cable at 60s. 6d. put money into British Insulated Callenders are both up Is. A sharp fall in Aron lowered f.G-fl and W. T. Henley’s ordinary shares, do so ¿S with the intention of holding the shares more ('Continued on Page 355) 354 E l e c t r i c a l R e v ie w August 30, 1946 ELECTRICAL INVESTMENTS Past Month’s Price Changes Dividend Middle Month’s Dividend Middle Month’s ,------1------s Price Rise Yield ^ Price Rise Yield Company Pre- Aug. or p.c. Company Pre- Aug. or p.c. vious Last 23 Fall vious Last 23 Fall______ Home Electricity Ordinary Equipment and Manufacturing {Continued) £ s. d. Bournemouth and £ s. d. Baldwin,H.J.(2/-) 10 20 13/3 + 6d. 3 0 5 Poole .. .. 12* 12 i 64/— 3 18 2 British A luminium 10 8 43/6 + 1 /- 3 14 2 British Power and British Insulated Light .. ..7 8 32/- 5 0 0 & Callender’s 48/6 + 1 /- City of London .. 6 7 31/- + 6d. 4 10 4 British Rola (2/-) 15 15 6/6 - 1 /- 4 12 4 Clyde Valley .. 8 8 40/6 + 6d. 3 19 0 British Thermostat County of London 8 10 43/- + 1 /- 4 13 0 (5/-) .. ..18* 18* 23/9 ~ À 3 18 0 Edmundsons .. 6 6 27/6 4 7 3 B ritishV ac. Cleaner Elec.Dis.Yorkshire 9 9 44/- 4 1 9 + 1 /- (5/-) .. ..30 20 25/- 4 0 0 Elec. FiD. and Se -* Brush Ord.(5/-).. 9 10 10/6 - 1 /- 4 15 3 curities .. 13* 15 60/- + 1 h 5 0 0 Elec. Supply Cor Bureo (5/-) .. 15 20 23/9 — iV 4 4 7 poration .. 10 10 44/— + 6d. 4 1 1 0 ChlorideEl.Storagel5 15 98/9 ~ A 3 1 0 Lancs. Light and Christy Bros. .. 12 £ 17* 85/- 4 •7 7 Power .. 7* 71 31/6 4 15 3 Cole, E. K. (5/-) 20 20 33/9 — tV 2 19 2 Llanelly Elec. .. 6 6 26/- 4 12 4 Cossor, A. C. (5/-) 10* 1 2 ** 34/6 - 3 / - 1 16 9 Lond. Assoc. Electric 4 6 25/6 4 14 0 Crabtree (10/-) .. 17* 17* 52/- — 6d. 3 7 4 London Electric 6 6 26/— 4 12 4 CromptonParkinson Metropolitan E.S. 8 9 42/- 4 5 9 Ord. (5/-) .. 22* 22* 34/- —6d. 3 6 3 Midland Counties 8 8 45/— 3 1 1 1 De La Rue .. 40 40 1 2 * - 4 3 5 4 Mid. Elec. Power 9 9 44/- + 6d. 4 1 9 Decca (1/-) ..100 1 1 2 58/9 + i 1 18 6 Newcastle Elec... 7 7 31/- + 1 /- 4 10 4 E.M.I. (10/-) .. 8 8 32/9 - 1/6 2 8 9 NorthEasternElec. 7 7 30/6 4 1 1 10 Elec. Construction 10 124 67/6 3 14 0 Northampton .. 10 10 4 3 4 48/— Enfield Cable Ord. 12* 1 2 * 60/6 + 1 /- 4 2 8 Northmet Power 7 9 41/- 4 7 10 English Electric 10 10 . 63/6 + 1 /- 3 3 3 Scottish Power .. 8 9 40/- 4 10 0 Ericsson Tel. (5/-) 22* 20* 56/— - 1/6 1 15 6 Southern Areas .. 5 51 22/- 5 0 0 Ever Ready (5/-) 40 40 47/6 —2/6 4 4 2 South London .. 7 10 4 7 31/- 4 Falk Stadelmann 7* 10 48/9 — À 4 2 0 Yorkshire Elec... 9 9 44/- 4 1 10 Ferranti Pref. .. 7 7 34/6 4 1 2 Public Boards G.E.C. : Central Electricity: Pref...... 6* 6* 37/6 + 1 /- 3 9 4 Ord...... 17* 17* 3 9 3 1963-93 .. 3* Si 1081 + 1 3 4 6 — + GeneralCable(5/-) 15 15 23/— 3 5 2 1974-94 .. Si 3* 107 3 0 9 G reenwood&B atley 15 15 52/- 2 5 5 LondonElec.Trans. 2* 100 o 10 0 + /- 15 n 10 21/6 6 4 0 Lond.Pass.Trans.Bd. H.T.A. (10/-) .. 12* — d. 13 Heatrae (3/-) .. 1 2 * 1 2 * 8/- + 6d. 4 14 0 A .. .. 4* 4* 1251 + 1 3 1 1 9 Henley’s (5/-) .. 20 20 28/- — 6d. 3 1 1 5 B .. . . 5 5 12 0 1 4 3 0 4*% Pref. .. 4* 25/— 3 12 0 0 .. . . 3 3 601 + 2 1 4 19 2 4* Hopkinsons .. 17* 20 5* ’“ * 3 18 2 Overseas Electricity Companies Intl. Combustion 30 32* 9* - i 3 8 6 Atlas Elec. .. Nil Nil 9/- -9 d . Johnson & Phillips 15 15 35/- 3 10 7 2 Calcutta Elec. . . 6* 6* 62/6 —1/6 1 18 6 LancashireDynamo2 2 * 2 2 * 5* — 3 18 2 Cawnpore Elec... 13 13 57/3 -2 1 - 4 10 10 Laurence,Scott(5/-)l 2* 1 2 * 14/6 4 6 EastAfricanPower 7 7 45/6 + 6d. 3 1 5 LondonElec.Wire 7* 7* 43/5 3 8 9 9 Jerusalem Elec... 5 5 23/6 — 6d. 4 5 1 Mather & Platt .. 10 10 56/3 — tV 3 1 1 2 Madras Elec. .. 4 6 41/3 — 9d. 2 18 2 Metal Industries(B) 9 10 61/3 + À 18 6 Montreal Power 1 1 1 1 241 - 1 Mid. Elec. Mfg. .. 25 25 8J + * 2 16 1 Nigerian Elec. .. 10 1 2 1 43/- 5 16 4 Murex .. .. 20 20 90/- — Ä 4 9 0 PalestineElec.“ A” 5* 6* 36/- - 1/6 3 6 8 Newman Ind.(2/-) 22* 22* 9/- — 6d. 4 5 6 Perak Hydro-elec. 6 7 16/6 — 6d. Plessey (5/-) .. 20 20 38/9 Tokyo Elec. 6% 6 6 381 + 1 Power Securities 6 6 31/- + 1 /- 3 17 5 VictoriaFallsPowerl5 19 5t 3 10 8 Pye Deferred (5/-) 25 25 37/- -4/3 3 7 8 Whitehall Inv.Pref.— 6 26/6 4 10 7 Radio & Tel. (2/-) 25 15 10 /- - 1/6 3 0 0 Revo (10/-) .. 17* 20 54/6 - 1 /- 3 13 3 Equ ipm ent and Manufacturing Reyrolle .. 12* 1 2 * 80/- -* 3 2 6 Aron Elec. Ord. 15 10 61/3 -7/6 3 5 6 Scophony (5/-) .. — 10/6 — 6d. Assoc. Brit. Eng. 8 12 45/— -16 /3 5 6 8 Siemens Ord. .. 7* 7* 37/- 4 1 1 Assoc. Elec. : Strand Elec. (5,/-) 10 1 2 * 13/- -3 d . 4 16 4 Ord. .. .. 10 10 69/- - 1 /- 2 18 0 Switchgear&Cow- Pref...... 8 8 44/3 3 12 5 ans (5/-) .. 20 20 27/—» 3 14 0 AutomaticTel.&E1.12* 1 2 1 75/6- 1 /- 3 6 2 T.C.C. (10/-) .. 10 1 2 * 31/9 + 6d. 3 18 8 Babcock & Wilcox 12 1 2 1 65/6 3 16 3 (Continued on next page) * Dividends are paid free of Income Tax. August 30, 1946 E l e c t r i c a l R e v ie w CONTROL S i a t o * ^ Up to 90 H .P., 400/440 V O L T S VERITYS L ASTON, BIRMINGHAM 6 Sales Headquarters : | BRETTENHAM HOUSE. LANCASTER PLACE, W.C.2 * * w i c S ''V « » « t e ' « w '“ , e v \ j ä » MAKE REGULAR USE OF MARTINDALE COMMSTONES 0 Cut copper, brass and steel without Over 50 sizes in stock, in 3 grades: coarse, clogging. Edges of every bar left clean ; medium and fine. 20 different types of no dragging of copper. Save 75% of time handle. and cost of turning commutator in lathe. Over 25,000 regular users all over the Give longer life to motors, etc. world. MARTINDALE ELECTRIC C? Li? WESTMORLAND road, LONDON, N.W.9 Phone : CoUndale 8642-3 Crams : Commstones, Hyde, London E l e c t r i c a l R e v i e w August 30, 1946 Manufacturers of: INSULATED WIRES CABLES FLEXIBLES ASSEMBLIES ETC. for the IRESand AUTOMOBILE AIRCRAFT ELECTRICAL AND RADIO INDUSTRIES August 30, 1946 E l e c t r i c a l R e v ie w 355 Dividend Middle Month’s Dividend Middle Month’s Price Rise Yield Price Rise Zield Company Pre Aug. or p.c. Company Pre Aug. or p.c vious Last 23 Fall vious Last 23 Fall Equipment and Manufacturing (Con tin y ni) £ s. d. £ s. d. t.g.&m. .. 10 10 58/3 — I • 3 8 9 T. Tilling .. 10 10 54/- + 6d. 3 14 0 TelephoneMfg.(5/-) 9 9 14/6 3 2 1 West Riding . . 10 10 43/9 4 1 1 4 Thorn Elec. (5/-) 20 20 31/3 -7 1 - 3 4 0 Tube Investments 20 22£ 6 & 3 12 10 Telegraph and Telephone Vactric(5/-) .. 224 Nil 18/9 -3 d . — Anglo-Am. Tel. : Veritys (5/-) .. 7} 9/- 4 3 4 Pref. .. G 6 1364 + 3 4 8 0 W alsallCond n its(4 /—)55 55 55/6 -4/~ 3 19 4 Def...... 14 14 32Í - 1 4 13 9 Ward & Goldstone Anglo-Portuguese 8 8 32/- + 6d. 5 0 0 (5/-) .. ..25 35 49/G + 1/0 3 1 1 0 Cable & Wireless : Watford (2/-) ..15 15 81- -3 d . 3 15 0 5£Pref. .. 5i 5} 117 + 2£ 4 14 0 WestinghouseBrake 14 14 78/- - 1 /- 3 1 1 9 ' Ord. .. .. 4 4 113 + £ 3 10 10 West, Allen (5/-) 7£ 7£ 81- - 1/6 4 13 9 CanadianMarconiSl Nil 4 cts. 15/- — tV — Globe Tel. & Tel : Traction and Transport Ord...... 8£* 5* 42/6 — 3/6 2 7 0 Brit.Elec.Traction : Pref. .. 6 6 32/6 -1 1 - 3 13 10 Def. Ord. .. 45 45 1125 - 2 0 4 0 0 GreatNopthernTel. Pref. Ord. .. 8 8 178 - 4 4 10 0 (£10 ) .. . . 2 0 18 32 5 12 6 Calcutta Trams.. G| n 70/- -5 / - 2 3 0 Inter. Tel. & Tel. Nil Nil 27£ - n _ Cape Elec. Trams 5 6 32/- + 6d. 3 15 0 Marconi-Marine.. 7\ n 36/- -2/3 4 3 4 Southern Uly. : Oriental Tel. Ord. 4 4 58/9 -2/9 — 5% Prefd. .. 5 5 70* - 1 7 1 10 Telephone Props. Nil 6 22/6 + 1 /- 5 6 7 5% Pref. .. 5 5 1 1 1 - 4 4 10 2 Tele. Rentals (5/-) 10 10 14/6 3 9 0 * Dividends are paid free of Income Tax. Stocks and Shares (Continued from p. 353) shape of contangoes, options and forward dealings are not to be re-introduced at the the price on the month by 7s. 6d. to 61s. 3d. present time. The dividend has been cut from 15 per cent to 10 per cent. This came unexpectedly, and the trading loss on the year, shown by the figures, caused disappointment. Thorn Electric and TRADE MARKS Associated British Engineering are .ex rights, P P L IC A T IO N has been made for the the falls in prices being apparent rather than real. A registration of the-following trade marks. Veritys, Ltd., again announce that there is Objections may be entered within one month to be no addition to the interim dividend from August 2 1 s t :— already paid. This is the third successive year Micromac. No. 640,281, Class 9, and in which this practice has been adopted. Micromatic. No. 640,282, Class 9. Electric Previous reports have referred to delay in switches and electric plug and socket con nectors.— C. H. Parsons, Ltd., Britannia Works, connection with the settling-up of Admiralty Wharfdale Road, Tyseley, Birmingham. (To be contracts. associated with Nos. 640,282 (3569) and 640,281 (3569) ix, respectively.) Postscript Prices L e w v a n . N o. 640,539, Class 9. Insulated Since this month’s price lists were made up, wire, fuse wire and resistance wire, all for Metal Industries “ B,” on the increased dividend, electrical purposes.— London Electric Wire Co. have risen to 62s. 6d. De la Rue at 12)- are 10s. & Smiths, Ltd., 24, Queen Anne’s Gate, S.W.l. (To be associated with No. 615,388 (3312) ix and lower on the month. British Vacuum put on others.) 2s. 6d. to 27s. 6d. A . C. Cossor rallied to Spenstead. N o. 640,877, Class 9. Electric 35s. 6d. Decca Records rose to 61s. 3d. The dust-removal apparatus.— Spencer & Halstead, Indian group is weak, with Calcutta Trams Ltd., Bridge Works, Wakefield Road, Ossett, down to 67s. 6d. and Madras Electrics to Yorks. (To be associated with No. 496,231 40s. 6d. (2654) and others.) D e c o la (design). N o. 641,330, Class 9. Fortnightly Accounts Radio apparatus, radio-gramophones, gramo phones and records.— Decca Record Co., Ltd., By a decision of the Stock Exchange Council, 1 and 3, Brixton Road, S.W.9. (To be the pre-war system of fortnightly settlements associated with No. 359,891 (1887) viii and will be restored, within a few months, in place others.) of the present rule by which all transactions are B u r n e a t . No. 637,477, Class 1 1 , and done for cash. The decision is welcomed by F a y n e a t . No. 637,479, Class 9 . Gas and Stock Exchange firms, whose staff work will be electric cooking apparatus and water heaters.— Neat Gas Appliances, Ltd., 3 1 - 3 5 , Belle Vue simplified, and by the investing public, who Road, Hendon, N .W .4. should see a marked reduction in the delays Cleco. No. 639,659, Class 1 2 . Motor land which at present occur before transfers and vehicles, trucks, caravans and trailers.— Cleco stock certificates in respect of purchases are Electric Industries, Ltd., 7, Freeschool Lane, received. Pre-war aids to speculation in the Leicester. 356 E l e c t r i c a l R e v ie w August 30, 1946 ¡¡¡i NEW PATENTS Electrical Specifications Recently Published The numbers under which the specifications will be General Electric Co., Ltd., and W. M. printed and abridged are given in parentheses. Michaelis.—“ Apparatus for generating re Copies of any specification (Is. each) may be peated electric pulses.” 21943. December 31st, ¡dll obtained from the Patent Office, 25, Southampton 1943. (579679.) Buildings, London, W.C.2. Hazeltine Corporation.— “ Television signal- generating system.” 5846/44. March 30th, 1943. L. BAIRD.— “ Screens for television.” (579600.) 7978. April 28th, 1944. (579482.) Hoover, Ltd.— “ Suction cleaners.” 10533/44. British Thomson-Houston Co., Ltd. (General May 12th, 1943. (579558.) Electric Co.).— “ Magnetic core structures.” Igranic Electric Co., Ltd.—“ Electric snap 7040. April 17th, .1944. (579467.) “ Impe action switches o f the multiple circuit controlling dance matching transformers.” 17855. October type.” 10058/44. May 26th, 1943. (579542.) 28th, 1943. (579665.) W. H. H. Kelk and D. O. Burns.— “ Electro- British Thomson-Houston Co., Ltd., and magnetically operated timing mechanisms.” F. J. Clark.—“ Electric drum controllers.” 17047. October 18th, 1943. (579659.) 10558. June 1st, 1944. (579603.) Marconi’s Wireless Telegraph Co., Ltd.— Brookhirst Switchgear, Ltd., and J. T. “ Diversity radio-receiving system.” 8704/44. Golothan.— “ Electric switches and switchgear.” M ay 6th, 1943. (579507.) 10716. June 3rd, 1944. (579608.) Marconi’s Wireless Telegraph Co., Ltd., and s its H. R. Cantelo.—“ Frequency controlling and R. P. S. Buckle.—“ Combined electric S (1 tumbler switches and plug couplings.” 8105. stabilizing means in radio apparatus and the May 1st, 1944. (579488.) like.” 16450. October 7th, 1943. (579567.) Marconi’s Wireless Telegraph Co., Ltd., and Callender’s Cable & Construction Co., Ltd., H. J. Round.— “ Magnetostrictive devices.” and E. Tuilnicliff.— “ Manufacture of insulated 12533. September 26th, 1941. (579645.) sal electric wires and cables.” 17582. October 25th, “ Devices for the transmission and reception of m 1943. (579662.) energy o f the nature o f sound energy.” 12609. Callender-Suchy Developments, Ltd., and September 29th, 1941. (579646.) d i e t C. T. Suchy.—“ Filters.” 4675. March 13th, B. J. M ayo and H. E. Holman.— “ Electronâ n e » 1944. (579571.) discharge devices employing hollow resonators.” M lii Carlisle Electrical Manufacturing Co., Ltd., 2122. February 17th, 1942. (579648.) and H. V. Carlisle.—•“ Electrical service distri isdt M-O Valve Co., Ltd., and J. A. Smyth.— bution arrangement.” 2808. February 15 th, ims 1944. (579569.) “ Electric discharge devices.” 8678. June 24th, a s trai 1942. (579651.) C. J. Carter and Pye, Ltd.—“ Arrangement ¡ a t 23i National Carbon Co., Inc.— “ Electrical for monitoring pulse modulation.” 18031. k ta -li December 18th, 1942. (579652.) contact brushes.” 8846/44. June 23rd, 1943. (579509.) S B Co E. K. Cole, Ltd., and J. N. I. Evans.— L. C. Olsen.—“ Synchronizing devices for 3M “ Production of an electrically conducting layer telegraphic receivers.” 8439. M ay 4th, 1944. ffląi on the envelope of an electron discharge device (579499.) «¡a» or the like.” 9635. May 19th, 1944. (579531.) Ripaults, Ltd., and G. A. Roberts.— “ Stands “ Manufacture of fluorescent material for for spools of cable and the like.” 8371. May 3rd, «tot fluorescent lamps.” 9779. May 20th, 1944. 1944. (579495.) sd (579534.) J. Robinson.— “ Wireless receiving and trans ł, ai Cosmocord, Ltd., and A. Schumann.— mitting systems.” 8788. June 1st, 1943. %, “ Electrical devices employing piezo-electric (579655.) crystals.” 9356. May 16th, 1944. (579524.) ta (I E. C. Rollason and Murex Welding Processes, *r,i A. C. Cossor, Ltd., and D. A. Bell.—“ De Ltd.—“ Manufacture of non-ferrous welding ügta modulating apparatus for pulse signalling rods or electrodes.” 11 9 5 1. June 23rd, 1944. systems.” 15305. September 17th, 1943. (579635.) K (579565.) Standard Telephones & Cables, Ltd.—“ High A. C. Cossor, Ltd., and P. T. Hodgson.— frequency amplifiers.” 9880/44. January 30th, iUiiul “ Electric discharge devices.” 4500. March 19th, 1943. (579536.) “ Demodulating arrangements ®K1 C( 1943. (579653.) for frequency modulated electric waves.” ■al h J. A. Crabtree & Co., Ltd., B. G. Harrison 18911/43. November 13th, 1942. (579671.) and W. E. Hill.—“ Sockets of electric coup “ Means for pulse radio frequency oscillators.” lings.” 10287. May 26th, 1944. (579546.) 19414/43. November 23rd, 1942. (579673.) titiai N. Dixon, R. S. Robinson and W. T. Glover “ Electric signal communications system.” & Co., Ltd.— Manufacture of insulated 20746/43. September 19th, 1942. (579677.) electric cables and wires.” 17583. October 25th, Standard Telephones & Cables, Ltd. (Inter 1943. (579663.) national Standard Electric Corporation).— «as u English Electric Co., Ltd., and E. A. Binney.— Moulded worm shaft.” 10443. M ay 31st, “ Dynamo electric machines.” Cognate appli 1944. (579577.) toit* cations 3479/44 and 1038/45. February 24th, Standard Telephones & Cables, Ltd., and Ht. (i 1944. (579570.) saAfi Generation of impulses.” General Electric Co., Ltd., and A. Abbott.— 8426. May 4th, 1944. (579498.) “ Protective arrangements for alternating- Standard Telephones & Cables, Ltd., and ^mst current systems.” 9141. May 12th, 1944. %, ^ r' , 0EJ ectnc measuring apparatus.” (579520.) 9595. May 18th, 1944. (579530) s» ; August 30, 1946 E l e c t r i c a l R e v ie w 357 Standard Telephones & Cables, Ltd., P. K. C. L. Warburton, F. H. Wilshaw, Metro- Chatterjea and C. T. Scully.— “ Pulse generating politan-Vickers Electrical Co., Ltd., and W. systems.” 19140. Nov. 16th, 1943. (579672.) Crosland, Ltd.—“ Method and tools employed N. A. Tucker and Mallory Metallurgical therewith for cutting articles out o f sheet meta! Products, Ltd.— “ Resistance welding appar or plywood blanks.” 9317. May 15th, 1944. atus.” 9439. May 17th, 1944. (579527.) (579523.) United Insulator Co., Ltd., and P. A. Westinghouse Electric International Co.—- Hammond.—“ Electrical condensers.” 9723. “ Vacuum tight seals.” 7931/44. M ay 8th, 1943. May 19th, 1944. (579576.) (579515.) CONTRACT INFORMATION Accepted Tenders and Prospective Electrical Work 110/11-kV transformer banks and two spare Contracts Open units. Specification can be seen at the New Where “ Contracts Open ” are advertised in our Zealand Government offices, 4 15, Strand, W .C.2. “ Official Notices ” section the date of the issue ( Tenders.) is given in parentheses. Stockport.— September 11th. Town Council. Electrically-driven borehole pump for the Gas Ashton-under-Lyne.— September 9th. Housing Department. T. Reynolds, gas engineer, Port- Committee. Electrical wiring of 70 permanent wood Gasworks. houses. (August 16th.) Australia. — Queensland. — October 17th. City Electric Light Co., Ltd., Brisbane. Orders Placed 15,000-kW steam turbine and accessories. (Specification 4 12 , first copy 2 guineas, others Australia. — Postmaster-General’s Depart 10s. 6d.) H. Baskerville, secretary, Boundary ment. Automatic exchange equipments for Street, Brisbane. ( Tenders.) Kew (Victoria) and Lindfield and Kensington (N.S.W.) (£127,871, plus exchange).— Standard Birkenhead.— September 13 th. Electricity Telephones & Cables Pty. (Tenders.) Department. Switchgear and transformers. (August 16th.) Cardiff.— Electricity Committee. Accepted. Switchgear (£4,134).— South Wales Switchgear. Chesterfield.— September 12th. Electricity Six transformers (£4,212).— Bryce. Transformer Department. Seven 250-kVA outdoor distri for Roath power station (£597).—British bution transformers. H.v. and m.v. cables. (August 23rd.) Electric Transformer Co. Transport Committee. Accepted. 96 section Chester-le-Street. — September 2nd. Rural pillars with switches, etc., for trolley-bus con District Council. Electrical installations in 80 version scheme (£9,021).— B.I. Callender’s permanent houses at Plawsworth Road, Cables. Sacriston, and 80 houses at Birtley. F. Bowman, housing architect, Great North Road, Birtley. Felling (Durham).— Urban Council. Accepted. (Deposit of £1 Is.) Electrical installations in 40 houses at Holly Hill and eight at Felling House.—J. F. H. Edmonton. — September 4th. Borough Haugh. Council. Tw o vertical spindle centrifugal pumps, each complete with electric motors, Glasgow.— Housing Committee. Accepted. switchgear, etc., for Cuckoo Hall sewerage Electrical work at 1,548 houses.— R. J. Sinclair scheme. (Deposit £3.) E. J. Willis, borough & Co. (Glasgow). At 202 houses.—Argyle engineer, Town Hall, Edmonton, N.9. Electrical Co. At 54 houses.— Stewart Brothers. Kingston-upon-Thames. — September 30th. Manchester. —- Education Committee. A c Borough Council. Tower wagon for street cepted. Starter switchgear and regulators for lighting purposes. (August 23rd.) college generating station.— Milne & Long- Llandrindod Wells.— September 7th. Urban bottom. District Council. 400-kVA transformer, with Middlesbrough.— Town Council. Accepted. h.v. and l.v. switchgear. (August 23rd.) Cable.—Crompton Parkinson (£643); Hack- Manchester.— September 17th. Electricity bridge Cable Co. (£620). Department. Battery and charging equipment Southport. — Electricity Committee. A c at two substations; and 660-V d.c. traction cepted. 500-kVA transformer (£536).—Electric switchgear at three substations. (See this issue.) Construction Co. Fuse pillars (three at September 9th. Electricity Department. £148 10s. each and three at £ 155 10s. each).— Accessories for use with domestic appliances. British Insulated Callender’s Cables. (See this issue.) Highways Committee. Accepted. Elec September 18th. Electricity Department. trically driven pump (£284).— Wallwin (Pumps), Mercury-arc rectifier equipment for trolley-bus Ltd. supply. (See this issue.) Stockton-on-Tees.— Corporation. Accepted. Newbiggin (Northumberland).— U .D .C . Elec L.v. switchboard. — W. Lucy & Co., trical installations in 100 houses. Plans by the Switchgear.— A. Reyrolle & Co. Transformers. surveyor, Council Offices. —C. A. Parsons & Co. Cables for electricity New Zealand.—September 24th. Public supply extensions on the Fairfield Estate and Works Department. Two 10,000-kVA, Newham Grange Estate.— Edison Swan Cables. 358 E l e c t r i c a l R e v ie w August 30, 1946 Halesowen.— Houses 1100), Hasbury; A.&J. Contracts in Prospect Mucklow, Ltd., builders, Haden Hill. Particulars o f new works and building schemes for Hemel Hempstead. Permanent houses (98), the use of electrical installation contractors and Anchor Lane; Louis de Soissons, architect, traders. Publication in this section is no guarantee 21, St. John’s Wood Park, London, N.W.8. that electrical work is definitely included. Alleged Hereford.—Jam factory. Three Elms Road; inaccuracies should he reported to the Editors. Watson & Johnson, Birmingham. Altrincham.— Houses (52), Park Road, Tim- Hull.—Temporary shops, Ferensway, and perley; E. S. Hodgson, acting borough surveyor, three secondary schools; city architect. Town Hall. Kidsgrove.— Houses (80), Woodshutts estate, Amersham.— Houses (92), Chalfont St. Peter for U.D.C.; Wood, Goldstraw & Yorath, and Prestwood; H. E. Buxton, clerk, Rural architects, Station Road, Tunstall, Stoke-on- Council Offices, High Street. Trent. Banstead.—Concrete houses (100) for Leicestershire.— Police houses (£31,000) and U.D.C.; G. Wimpey & Co., Ltd. staff cottages, Carlton Hayes Hospital (£18,200); Bath.—Houses (100), Moorlands estate; county architect. city engineer, Guildhall. Lichfield.— Extensions, Phoenix Foundry, Berwick-upon-Tweed.— Permanent houses (40) Beacon Street; Chamberlain & Hill, Ltd. at Tweedmouth; borough surveyor, Municipal Factory for machine tools, etc., Trent Valley Buildings. estate; Wilson’s (Wolverhampton), Ltd. Factory, Trent Valley estate; Bound Brook Billingham-on-Tees.— Houses. (76) at Billing- Bearing Co., Ltd. ham Junction for the U .D .C.; Stephen Coates, Ltd..builders, Langbaurgh Place,Middlesbrough. Llanidloes.— Houses (40), Green Villa site Houses (62) and 12 bungalows on the Monk- (£45,818); H. N. Meredith, builder, Llanidloes. seaton Estate; H. A. Dawson (Estates), Ltd., Lowestoft.— Permanent houses (56), Yar builders. mouth Road and Kirkley Gardens ; borough Bishop Auckland.— Houses (36), St. Helen’s; engineer, Town Hall. Bell & Ridley, builders, Moorlands, Durham Manchester.— Re-equipment of college for City. teaching and research in rayon technology Bolton.— Rebuilding Hill Fold Mills, Belmont (£60,000) and primary school, Victoria Avenue; Road; W. A. Openshaw, Ltd. city architect. Middlesbrough.— Additions to steel construc Houses (36), Moss Bank Way; A. S. Woods, builder, Easedale Road. tional shop for Dorman Long & Co., Ltd. Additions to factory for Middlesbrough Case Brentwood.— Houses (300), Three Arch Bridge ments, L t d .; Stephen Coates, Ltd., builders, site, for U.D.C.; W. J. Hall, surveyor, 34, Langbaurgh Place. Victoria Street, Westminster, S.W-l- Montrose.— Houses (55); burgh surveyor, Canterbury.—Houses (44), Martyrs’ Field Town Buildings. (£52,499); Ringmer Building Works, Ltd., Neston.— Permanent houses (152), Little Ringmer, East Sussex. Neston, for U.D.C.; James & Bywaters & Carlisle.— Houses (200); city engineer. Rowland Pierce, architects, 5, Bloomsbury Cheetham.— Warehouse and office, 135, Street, London, W .C.l. Cheetham Hill Road; D. Elfin, 343, Deansgate, Newark.—Houses (70), Winthorpe Road Manchester. (£ 81,552), f o r T .C .; H. Baggaley, Ltd., builders, Connah’s Quay.— Houses (94), Wepre estate, Baums Lane, Mansfield. for U.D.C.; E. C. Evans, clerk, Council Newburn-on-Tyne.— Houses (126), Claremont Offices. estate; G. Bainbridge, builder, Lemington. Consett.—Permanent prefabricated houses Newcastle-on-Tyne.—Houses (38), Acomb (750) for U.D.C.; J. J. Eltringham, architect, Gardens; U. & W. Cooknell, Coburg Street, Derwent Street, Blackhill. Blyth, Northumberland. Dalton-in-Furness.— Houses (34), Ireleth Alterations in Carliol Square for Milligan (£42,103) for U.D.C.; H. S. Pearce, builder, Reed & Co., and in Albion Row for Domestos, Barrow. Ltd.; Cackett, Burns Dick & McKellar, archi tects, 21 Ellison Place. Darlington.—Kitchens and dining rooms at Houses on 134-acre site at Kenton Lane for Eastbourne Boys’ and Girls’ Schools for the the City Council; city architect, 18, Cloth E .C .; E. Minors, borough engineer. Market. Ennerdale (Cumberland).—One hundred Newcastle (Staffs).— Semi-detached houses “ Airey ” type houses; R.D.C. surveyor. (14), Stratford Avenue, May Bank; Baddeley Failsworth.— Houses (146), Propps Hall site, Bros., 78, Dimsdale Parade. for U.D.C.; H. S. Fairhurst & Son, architects, i r ^ uste,ll'TT,i^9uses (130), Poltair estate, for 55, Brown Street, Manchester, 2. U.D.C.; J. Williams & Co. (Cornwall), Ltd., Glasgow.— New factories at Hillington Indus builders, South Street. trial estate; manager, Scottish Industrial Shilbottle.— Houses (34) for the Alnwick Estates, Glasgow. in .u J 9 9 reen & Sons, Butts, Warkworth, G r im s b y .— Houses (40), Humberston and Northumberland. Immingham, for R.D.C.; P. E. Hopps, clerk, builders*"81011 Houses (44); Leslie & Son, Council Offices, Deansgate. August 30, 1946 E l e c t r i c a l R e v ie w 57 . . . are distinctive in performance and design. Types for widely varied application and in all capacities for use with Automobiles, Telephone Systems, Electric Vehicles, Emergency j Lighting, and Fire Alarms are in continuous production. Our advice and technical data service are freely at yoiir disposal. W rite for list No. 1029. F. C HEAYBERD & CO. LTD Head Office: 28, RUSSELL SQUARE, W.C.1. Telephone: M MAKE THE BEST ^ OF BOTH WORLDS HIGH CONDUCTIVITY £ Designers need no longer be limited by the poor mechanical strength of copper castings nor by the low con ductivities of the brasses and bronzes. HIGH STRENGTH The development of Mallory high con ductivity copper alloys makes available cast materials that retain the high MALLORY CASTINGS current-carrying capacity of copper and combine it with the strength and Fuller details of * Mallory 3 and hardness of steel. Lighter, yet stronger castings are thus other Mallory alloys are given in our technical booklets which will possible for the current-carrying parts of switchgear, arc and be sent on request induction furnaces, resistance welding machines, transformers W— and other electrical equipment. JOHNSON, MATTHEY & CO. LIMITED Controlling MALLORY METALLURGICAL PRODUCTS LTD. 73-83 Hatton Garden, London, E.C.I. Telephone: HOLborn 9277 58 E l e c t r i c a l R e v ie w August 30 Aihit. of The General Electric Co. T.td., Magnet House, Kingsway, London, W.C.z August 30, 1946 E l e c t r ic a l R ev ie w 59 ■CLASSIFIED ADVERTISEMENTS" A D V E R T IS E M E N T S for insertion in the following R EP LIES TO advertisements published under a Fnday s issue are accepted up to F ir s t P o st on Box Number if not to be delivered to any particular Monday, at Dorset House, Stamford Street, London, firm or individual should be accompanied by instruc S .E .l. tions to this effect, addressed to the Manager of the TH E CH A RG E for advertisements in this section ELECTRICAL REVIEW . Letters of applicants in is 2/- per line (approx. 7 words) per insertion ; ONLY OFFICIAL AND GOVERNMENT ANNOUNCE such cases cannot be returned to them. The name MENTS CAN N O W BE DISPLAYED:— 30/- per of an advertiser using a Box Number will not be inch. Where the advertisement includes a Box disclosed. A ll replies to Box Numbers should be Number this counts as six words and there is an addressed to the Box Number in the advertisement, additional charge of 6d. for postage of replies. c/o ELECTRICAL REVIEW , Dorset House, Stam SITUATIONS WANTED. — Three insertions ford Street, London, S.E.l. Cheques and Postal under this heading can be obtained for the price of Orders should be made payable to ELECTRICA L two if ordered and prepaid with the first insertion. REVIEW LTD. and crossed. Original testimonials should not be sent with applications for employment. OFFICIAL NOTICES, TENDERS, ETC. SITUATIONS VACANT C ,T Y 0 F M A N C H ES TER CROWN AGENTS FOR THE COLONIES rT!HE Electricity Committee invites tenders for the follow- Colonial Government Appointments -L ing:—Specification No. 873: Supply, delivery and putting into service of Battery and Charging Equipment at two substations. Specification No. 874 : Supply, delivery A P P L IC A T IO N S from qualified candidates are invited and erection at three substations of 660-volt D .C. Traction for the following post:— Switchgear. ELECTRICAL FOREMAN (Telegraph and Telephones) Specifications, etc., may be obtained from Mr. R . A. S. required by the Gambia Government, Public Utilities Department, for one tour of 18 to 24 months with possible Thwaites, Chief Engineer and Manager, Electricity Dept.. permanency. Salary according to age. experience or war Town Hall, Manchester, 2, on payment of a fee of one service in the scale £400 a year rising to £560 a year. guinea for each specification, which amount will be re Cost of living allowance of £40 a year for single men and funded on receipt of a bona fide tender. for married men £60 a year, with separation allowance of Tenders, addressed to the Chairman of the Electricity £60 a year for the first child and £36 a year for the second. Committee, to be delivered not later than 10 o’clock a.m. Outfit allowance £60. Free passages and quarters. on Tuesday. 17th September, 1946. The Committee does Candidates, not over 40 years of age. must be capable of not bind itself to accept the lowest or any tender. carrying out overhead telephone construction and main PHILIP B. DINGLE. tenance. underground telephone cable laying and jointing, Town Hall. Manchester, 2. Town Clerk. testing equipment for lines and apparatus, and installation 21st August. 1946.______2301 and maintenance of subscribers’ telephone apparatus and COUNTY BOROUGH OF SOUTHEND-ON-SEA of exchange equipment, automatic and C.B. They should ELECTRICITY DEPARTMENT possess City and Guilds Certificates in Technical Elec tricity, Telegraphy, Telephony and Radio Communication. To Manufacturers and Agents Apply at once by letter, stating age. whether married' or single, and full particulars of qualifications and experience, A central file of catalogues is being inaugurated and to the Crown Agents for the Colonies, 4, Millbank. manufacturers or agents who so desire may 6end London, S.W .l, quoting M /N /16854 on both letter and copies of their catalogues to the undersigned. Suitable envelope.______2307 arrangements should be made to keep the information up to date. BURGH OF OBAN Catalogues required are those relating to gear and ancillaries of electricity generation and distribution and Appointment of Burgh Electrical Engineer also Diesel engines. R. C. GOLDING. M.Sc., P P L IC A T IO N S are invited from qualified persons for Electricity Dept., Borough Electrical Engineer. A this appointment. Applicants must be Corporate 85, London Rd., Southend-on-Sea. Members of the Institution of Electrical Engineers and not 22nd August, 1946.______2294 more than 45 years of age. Experience in electricity supply CITY OF MANCHESTER undertaking is essential and recent experience in change over work is desirable. HHHE Electricity Committee invite tenders for the supply, The salary will be in accordance with the agreement dehvery and erection of Mercury-Arc Rectifier Equip dated 9th July. 1941, made between the National Joint ment for Trolley-bus Supply (Specification No. 872). Committee for Local Authorities and Chief Electrical Specification, etc.. may be obtained from Mr. R . A. S. Engineers, but in pursuance of Clause 10 of this agreement Thwaites. Chief Engineer and Manager, Electricity Dept., 85% of the salary will be paid in the first year, 92i% in Town Hall. Manchester. 2, on payment of a fee of £1 Is., the second year, the full salary being payable in the third which amount will be refunded on receipt of a bona fide and subsequent years. tender. The present unit assessment of the undertaking is two Tenders, addressed to the Chairman of the Electricity million units. The appointment will be subject to three Committee, to be delivered not later than 10 o’clock a.m. months’ notice on either side and will be subject to the on Wednesday, 18th September, 1946. The Committee does Local Government Superannuation (Scotland) Act, 1937. not bind itself to accept the lowest or any tender. Applications, stating age, experience and qualifications, PHILIP B. DINGLE, together with not more than three recent testimonials, Town Hall, Manchester, 2. Town Clerk. should be delivered to me not later than 12th Sept.. 1946. 17th August, 1946.______2340 A. MacINNES. Municipal Buildings, Oban. Town Clerk. CITY OF MANCHESTER ELECTRICITY DEPT. 2Qth August. 1946.______2284 HPENDERS are invited for the supply and delivery during the period of twelve months ending 30th September. GLOUCESTER CORPORATION ELECTRICITY 1947, of Accessories for use with Domestic Appliances DEPARTMENT (Specification No. 875). Specification and form of tender may be obtained from Castle Meads Power Station Mr. R. A S. Thwaites, Chief Engineer and Manager, Electricity Department, Town Hall, Manchester, 2. X>EQ UIRED, Switchboard Attendant. Wages 32.25d. Tenders, addressed to the Chairman of the Electricity per hour. N .J.I.C . conditions. Sick pay and Committee, to be delivered not later than 10 o’clock a.m. pension schemes in operation for which medical examina on Monday. 9th September, 1946. The Committee does tion is necessary. Must have had previous experience in not bind itself to accept the lowest or any tender. control room of modern generating station and have under PHILIP B. DINGLE. gone suitable training. Apply at once, with copies of Town H all. Manchester. 2. Town Clerk. recent testimonials to : Chief Engineer & General Manager. 23rd August, 1946. 2341 Electricity Dept., Commercial Road. Gloucester, 2323 60 E l e c t r ic a i R e v ie w August 30, 1946 METROPOLITAN BOROUGH OF WOOLWICH CENTRAL ELECTRICITY BOARD ELECTRICITY DEPARTMENT T H E Central Electricity Board have vacancies for the Appointment of Lady Cookery Demonstrator following:— One Cable Engineer at a commencing salary of £750 to A vacancy arises for the position of a Lad y Cookery £850 p.a., depending on qualifications. Demonstrator at the Electricity Showrooms. Electric One Transformer Engineer at a commencing salary of House. Powis Street, Woolwich. Candidates, who should £750 to £850 p.a., depending on qualifications. hold the E.A.W. Certificate, or Diploma, should not be To the basic salaries will be added war-time payments less than 21 years of age. and have had experience in in accordance with the arrangements in force from time to demonstrating cooking by electricity. time. A t present the additional payment on these basic The salary will be in accordance with the National Joint salaries is £62 8s. per annum. Council for Local- Authorities’ Administrative, Professional. Applicants for the position of Cable Engineer must have Technical and Clerical Services, General Division (Female), sufficient experience in the design, manufacture and installa which is. at the age of 21. £120 per annum, plus £16 tion of high voltage cables to enable them to revise specifi weighting for London, plus war bonus, rising to £240 per cations, scrutinise designs, supervise tests and installation, annum, plus £24 weighting, plus bonus, at the age of 30. and investigate performance of cables and accessories. The appointment is subject to the provisions of the Applicants for the position of Transformer Engineer Local Government Superannuation Act, 1937, and the must have sufficient experience in the design and manu selected candidate will be required to pass a medical facture of large high voltage transformers to enable them examination prior to appointment. Applications, stating to revise specifications, scrutinise designs, supervise tests age. qualifications and experience, together with not more and installation, and investigate performance of trans than three recent testimonials, should be addressed to the formers and tap-changing equipment and accessories. Borough Electrical Engineer, Electric House, Powis Street. Applicants should state age. and give full particulars, Woolwich, and received not later than Saturday, 7th with dates, of education, technical training, practical September. 1946. Canvassing members of the Council, experience, degrees, diplomas, etc. Selected applicants will either directly or indirectly, will be a disqualification. be required to undergo a medical examination and, if DAVID JENKINS. approved, will be required to join the Board’s Super Woolwich. S.E.18. Town Clerk. annuation Scheme. 29th Ju ly, 1946.______.______2168 Applications must be submitted, in writing, to the Chief BOROUGH OF WATFORD ELECTRICITY DEPT. Engineer, Central Electricity Board, Trafalgar Buildings, 1, Charing Cross, London, S .W .l, and be received by him Mains Assistant not later than midday on Monday. 9th Sept., 1946. 2259 METROPOLITAN BOROUGH OF WOOLWICH A P P L IC A T IO N S are invited for the above position ELECTRICITY DEPARTMENT with salary and conditions in accordance with Grade 8b. Class H (plus 5% London Area), of the National Appointment of Testing Assistant Joint Board Schedule, also a car allowance. Candidates must have had a good technical education and experience A PPLICATIONS are invited for the position of Testing in general mains work, including operation of E .H .T . and Assistant in the Meter Section of the Electricity L.T. switchgear. laying and jointing L.T. cables, testing Department. Candidates should be Graduate Members of and connecting in substations and kiosks. Corporate or the I.E.E., or hold equal qualifications, must have sound Graduate Membership of the Institution of Electrical technical experience and should be thoroughly conversant Engineers is desirable. with the construction of single and polyphase metering The successful applicant will be required to pass a equipment and the operation of polyphase testing equip medical examination, as the appointment will be subject ment. Previous experience in a type " A ” testing to the provisions of the Local Government and Other station of a large electricity undertaking is essential. Officers Superannuation Acts. 1922-1937. Applications, The salary will be in accordance with Grade 9. Class J. stating full details of experience, age and qualifications, of the National -Joint Board Schedule, at present com together with copies of not more than three recent testi mencing at £446 5s. per annum. monials. must be submitted to the undersigned not later The appointment is subject to the provisions of the than 4th September. 1946. endorsed “ Mains Assistant.” Local Government Superannuation Act. 1937, and the A. W. BARHAM. selected candidate will be required to pass a medical Chief Engineer and General Manager. examination prior to appointment. Electricity House. Applications, stating age, qualifications and experience, The Parade. Watford. ______2206 together with not more than three recent testimonials, should be addressed to the Borough Electrical Engineer. MILFORD HAVEN URBAN DISTRICT COUNCIL Electric House. Powis Street. Woolwich, and received ELECTRICITY UNDERTAKING not later than Saturday. 7th September. 1946. Canvassing members of the Council, either directly or indirectly, will Appointment of Distribution Assistant be a disqualification. DAVID JENKINS. PPLICATIO NS are invited for the above appointment. Woolwich. S.E.18. Town Clerk. A The selected applicant will be engaged on the con 29th Ju ly, 1946.______2169 struction. maintenance and operation of rural and urban overhead and underground systems up to 11 kV. Mains BOROUGH OF LOUTH ELECTRICITY DEPT. records experience essential. Extension and change-over programmes are in hand. Appointment of Consumers Engineer The salary will be in accordance with the N.J.B. Schedule, Class B, Grade 7 (at present £368, rising to A PPLICATIO NS are invited for the above appointment £379 per annum). at a salary in accordance with Grade 6. Class A. The appointment will be subject to the Local Govern N .J.B . Schedule, at present £368 rising to £391 per annum. ment Superannuation Act. 1937. and the successful At the present rate of growth of load the Undertaking is candidate will be required to pass a medical examination. likely to transfer to Class B in 1947, when the salary will Applications, stating age, qualifications and experience, be £402 rising to £417 per annum. accompanied by not more than three testimonials, must Applicants must have had a sound technical and prac be delivered to the undersigned by not later than tical training in electrical engineering, with previous September 9th. 1946. experience of sales and showroom organization and load A. J. DALTON. development. Experience in the supervision of testing, Town Hall. Electrical Engineer and Manager. inspecting and connecting consumers’ installations and Milford Haven.______* ______2154 domestic apparatus is essential. The appointment is sub ALTRINCHAM ELECTRIC SUPPLY LTD. ject to the provisions of the Local Government Superannua tion Act, 1937, and the successful candidate may be required to undergo a medical examination. Plumber-Jointer Applications, giving age, details of training and experi ence. present position held, and accompanied by copies of PPLICATIONS are invited for employment as a two recent testimonials, must be delivered not later than A ’ Plumber-Jointer. Wages and working conditions in Thursday, 12th September. 1946. to H . Doust. A .M .I.E.E., accordance with N.J.I.C. No. 3 District Schedule; present Borough Electrical Engineer, Electricity Offices. Cannon rate 28.45d. per hour. . Street. Louth. Canvassing, either directly or indirectly, Applications, stating age and experience, should be will disqualify. submitted by September 9th. 1946. addressed to the rp t j t .1 E* BAILEY, Engineer and Manager, Altrincham Electric Supply Ltd.. on?V. A aOU! L Town Clerk. 60. Stamford New Road. Altrincham, Cheshire. 2238 20th August, 1946. ¿273 August 30, 1946 E l e c t r ic a l R e v ie w 61 BOROUGH OF ASHTON-UNDER-LYNE CENTRAL ELECTRICITY BOARD ELECTRICITY DEPARTMENT North-West England and North Wales Area Appointment of Substation Control Engineer H E Central Electricity Board have vacancies in their A PPLICATIONS are invited for the position of Sub- T North-West England and North Wales Area for: station Control Engineer for shift duties in the Coun (1) Assistant Section Engineers; (2) General Assistant cil’s Wellington Road Works, at a salary in accordance Technical Engineers for protective gear testing on site. with the N .J.B . Schedule. Class F. Grade 9. commencing Starting salaries will range from £300 per annum to £375 at the present rate of £358 per annum. Applicants should per annum basic, depending on qualifications. To the basic have had a sound technical training and experience in the salaries will be added a temporary salary adjustment in control of high and low pressure switchboards, operation of accordance with the arrangements in force from time to rotary conversion plant and grid switching. time. At present this temporary salary adjustment is at Applications, stating age, education and technical train the rate of 30% on the basic salary, with a minimum of ing. experience, present position regarding service in H.M. £39 per annum and a maximum of £62 8s. per annum. Forces, release from present employment, and accompanied Applicants should state their age and give full particulars, by not more than three testimonials, should be sent to Mr. with dates, of education, technical training, experience, N. Jones. Chief Engineer. Electricity Department. Welling degrees and diplomas, etc. The selected applicants will be ton Road. Ashton-under-Lyne, not later than Friday. required to undergo a medical examination and. if September 20th, 1946. endorsed “ Substation Control approved, will be required to join the Board’s superannua Engineer.” Preference will be given to applicants of tion scheme. graduate standard of the I.E .E . Applications must be submitted in writing, addressed to Applicants should state whether related to any member the Manager, Central Electricity Board, Grid House. or senior officer of the Council, and should not be more Wilmslow Road. East Didsbury, Manchester, 20. and be than 45 years of age. As the appointment will be subject received by him not later than September 14. 1946. 2252 to the provisions of the Local Government Superannuation BOROUGH OF KING’S LYNN ELECTRICITY Act, 1937, the selected candidate will be required to pass DEPARTMENT a medical examination and contribute to the superannua tion fund. The Council regrets that it is unable to offer Appointment of Mains Superintendent Without housing facilities to the successful applicant. Charge of Substations D. W. BROMLEY. Town Hall. Ashton-under-Lyne. Town Clerk. A PPLICATIONS are invited for the above appointment 22nd August. 1946.______2305 in accordance with the National Joint Board Schedule of Salaries and Conditions. Grade 4, Class E, commencing CITY OF MANCHESTER ELECTRICITY DEPT. £558 per annum. The appointment will be subject to the Local Govern A P P L IC A T IO N S are invited for the following appoint- ment Superannuation Act, 1937, and to the passing of a ments on the staff of the Electricity Department: — medical examination by the Council’s Medical Officer. ONE SHIFT CHARGE ENGINEER at Stuart Street Applications, stating age. whether married or single, Power Station. Salary in accordance with Class J. present position and duties, with particulars of technical Grade 7. of the N.J.B. Schedule (£563 p.a. to training and past experience, endorsed ” Mains Super commence). intendent.” should be delivered to the undersigned not ONE ASSISTANT SHIFT CHARGE ENGINEER at later than Monday. 9th September, 1946. Corporate Barton Power Station. Salary in accordance with Membership of the I.E .E . will be an additional qualifica Class K, Grade 8b, of the N.J.B. Schedule (£487 p.a. tion. to commence). FRANK G. REEVES. Candidates must have served a workshop apprenticeship Town Hall. Town Clerk. and have at least the Higher National Certificate in King’s Lynn.______2208 Electrical or Mechanical Engineering. Training and experience in boiler operation essential. Age limit. 40 MIDDLESEX COUNTY COUNCIL years. The appointments will be subject to the City Council County Architect’s Department Superannuation Scheme, and the successful candidates will be required to pass a medical examination. WO Assistant Engineers required to supervise main Applications, giving full particulars of age. technical T tenance engineering staff at Hospitals and Institutions. training and experience, together with copies of recent Applicants must have experience of similar work and be testimonials, must be endorsed “ Shift Charge Engineer ” conversant with steam and direct heating boilers, including or ” Assistant Shift Charge Engineer ” and addressed to mechanical stokers and coal handling plant, heating and the Chairman of the Electricity Committee. Town Hall. domestic hot water systems, electric generation and distri Manchester, 2. not later than 10 a.m. on Monday, 9th bution, electric lighting. X-ray equipment, automatic September. 1946. Canvassing, directly or indirectly, will telephones, wireless, cold water services and all equipment disqualify. _ of an engineering nature generally associated with large PHILIP B. DINGLE. general hospitals. Salary £545 p.a., plus temporary bonus, Town Hall, Manchester, 2. Town Clerk. now £60 p.a. Established and pensionable staff, subject August. 1946.______2156 to medical examination. Application forms obtainable SUNDERLAND EDUCATION COMMITTEE from C. G. Stillman, County Architect. Middlesex House. Vauxhall Bridge Road, S.W .l, to be returned, with three The Technical College recent testimonials, by 13th September. 1946. (A .93.) Principal: D. A. Wrangham M.Sc.(Lond.), Sen.Wh.Sc., C. W. RADCLIFFE. M.I.Mech.E.. D.I.C. Guildhall. Clerk of the County Council. Westminster. S .W .l. _____ 2250 P P L IC A T IO N S are invited for the post of Lecturer in CITY OF MANCHESTER ELECTRICITY DEPT. A the Electrical Engineering Department, duties to commence as soon as possible. Salary in accordance with A PPLICATIONS are invited for the position of the Burnham Technical Scale. The commencing salary Assistant Chemist at Barton Power Station. Candi will include an allowance for approved industrial or pro^ dates must have had experience in general analysis, and fcssional experience (after the age of 21 years) up to 7 hold the Higher National Certificate in Chemistry or years, or in special cases up to 10 years. equivalent. The standard of the full-time day courses is that required Salary in accordance with Class K , Grade 10a (£357 p.a. for an Honours Degree, and of the evening courses the to commence). Higher National Certificate. Candidates should have a The appointment will be subject to the City Council good Honours Degree in Electrical Engineering, with quali Superannuation Scheme, and the successful candidate will fications in Telecommunications, and have had practical be required to pass a medical examination. experience in modern developments in this field, rorms Applications, giving full particulars of age, technical of application and further particulars may be obtained training and experience, together with copies of recent by sending a stamped addressed foolscap envelope to the testimonials, must be endorsed “ Assistant Chemist ” and Registrar The Technical College, Sunderland. Applica addressed to the Chief Engineer and Manager. Electricity tion forms should be returned to the undersigned as soon Department. Town Hall. Manchester. 2. not later than 10 a.m. on Monday. 16th September. 1946. Canvassing, W. THOMPSON. directly or indirectly, will disqualify. Education Offices, Director of Education. PHILIP B. DINGLE. 15. John St.. Sunderland. Town Hall. Manchester. 2. Town Clerk. August. 1946. 2303 August, 1946. 2160 62 E l e c t r ic a l R e v ie w August 30, 1946 CITY AND COUNTY BOROUGH OF CARLISLE LEEK URBAN DISTRICT COUNCIL ELECTRICITY DEPARTMENT Appointment of Electrical Engineer and Manager Appointment of Switchboard Attendant A PPLICATIONS are invited from fully-qualified A PPLICATIONS are invited from suitable candidates Electrical Engineers for the above appointment. for the above position at the Willow Holme Power The salary will be in accordance with the National Agree Station^ Candidates 6hould hold a technical qualification ment. 85% of this salary will be paid in the first year, or show that they are in course of obtaining qualification 92è% in the second year, and the full salary, on present for Corporate Membership of the Institution of Electrical output, £824 per annum, from the commencement of the Engineers. Experience with a manufacturer of power third year. station electrical equipment or with an electricity supply Applicants must be corporate members of the Insti authority in a modern power station control room is tution of Electrical Engineers, and have a thorough essential. knowledge and experience of high tension and low tension Salary and conditions of service will be in accordance underground and overhead distribution networks, and with N. J.B. Agreement, Class H, Grade 9a. Present salary substations, on both A.C. and D.C. systems, and must be £365-£381 per annum. The appointment will be subject to conversant with the administration of an electricity under the provisions of the Local Government and Other Officers taking. Preference will be given to candidates with Superannuation Act, 1937, and the successful candidate will experience of changing over from D.C. to A.C. The be required to pass a medical examination. appointment will be terminable by three months’ notice Applications, giving age, details of training and experi in writing on either side, and will be subject to the Local ence, together with copies of not more than three testi Government and Other Officers’ Superannuation Act. 1937, monials, or, alternatively, the names and addresses of and to a satisfactory medical examination. three referees, should be delivered to the undersigned in Applications, giving full particulars of age, qualifica sealed envelopes, appropriately endorsed, not later than tions. past and' present appointments and experience, Monday, 16th September, 1946. accompanied by copies of three tecent testimonials, must be received by the undersigned not later than 10th A. C. TH IRTLE, A.M.I.E.E.. A.M.I.C.E.. September. 1946. Envelopes should be endorsed “ Elec Electricity House. City Electrical Engineer trical Engineer.” Canvassing will disqualify. 46/48 Castle Street, and Manager. Carlisle.______2258 S. F. ESLAND, Town Hall, Leek. Clerk of the Council. METROPOLITAN BOROUGH OF WOOLWICH 23rd August. 1946. 2312 ELECTRICITY DEPARTMENT COUNTY BOROUGH OF PRESTON ELECTRICITY Appointment of Showroom Assistant DEPARTMENT Mains Engineer (Second Advertisement) 4 vacancy arises for the position of Showroom Assistant A (Male) in the Electricity Department. Candidates, A P P L IC A T IO N S are invited for the above position who should be over 21 years of age, should have had from suitably qualified Engineers. Applicants must previous experience in electrical showrooms, be of good have had wide experience in the operation and main appearance and able to interview consumers. tenance of an extensive E.H.T. system of transmission The salary applicable is £160 per annum, plus £20 and distribution up to and including 33 k V ; experience weighting for London, plus war bonus at the age of 21. on a 66-kV system will be an added recommendation. rising to £300, plus £30 weighting, plus war bonus at The duties will include the erection of overhead lines and the age of 30. laying of underground cables, also maintenance of the The appointment is subject to the provisions of the Local Government Superannuation Act, 1937, and the complete transmission and distribution networks. selected candidate will be required to pass a medical Applicants must be technically qualified up to at least examination prior to appointment. Applications in candi Higher National Certificate standard, and preference will date's own handwriting, stating age, qualifications and be given to those who are either corporate or graduate experience, together with not more than three recent members of the Institution of Electrical Engineers. testimonials, should be addressed to the Borough Electrical Salary and conditions of employment in accordance Engineer. Electric House, Powis Street, Woolwich, and with the National Joint Board Schedule. Class J. Grade 4 received not later than Saturday, 7th September. 1946. (at present £713, rising to £744 per annum). Canvassing members of the Council, either directly or Applications, stating age and giving full particulars of indirectly, will be a disqualification. technical qualifications, training and experience, accom DAVID JENKINS. panied by not more than three testimonials, and Woolwich. S.E.18. Town Clerk. appropriately endorsed “ Mains Engineer,” must be 29th July. J-946.______2167 received by the undersigned not later than Saturday, 14th September, 1946. BOROUGH OF GRAVESEND ELECTRICITY DEPT. G. A. ROBERTSON. M.Sc.Tech.. M.I.E.E.. M.I.Mech.E.. Switchboard Attendant 40 & 41, Lune Street. Borough Electrical Engineer. Preston. PPLICATIONS are invited from suitable applicants 24th August. 1946. _ 231J A for the position of Switchboard Attendant in the Corporation’s Selected Power Station. Applicants must COUNTY BOROUGH OF SOUTHPORT have had a good general education and suitable experience ELECTRICITY DEPARTMENT in a power station or similar class of work. Appointment of Lady Demonstrator The salary will be in accordance with N.J.B. conditions, commencing at £327 per annum, rising to £338 per annum. Applications, stating age, education and experience, should A P P L IC A T IO N S are invited for the appointment of Lady Demonstrator in the Electricity Department be addressed to the undersigned not later than Sept. 7,1946. at a salary in accordance with the National Scale of G. V. HARRAP. A.M.I.E.E., M.I.I.A., salaries (£252-£288. plus war bonus, at present £48 2s. 17. Harmer St., General Manager and Engineer. per annum). Gravesend, Kent. Applicants should be over the age of 21 years and must 21st August, 1946. 2293 have had a good general education, and hold a recognised UNIVERSITY OF BIRMINGHAM Diploma m Domestic Science and/or the E.A.W . Electrical Housecraft Diploma. Applicants must be competent to Faculty of Science— Chair of Electrical Engineering arrange and conduct-lectures and cookery demonstrations. a°d advise on ^ e section and use of electrical appliances of all types. H E Council invites applications for the Chair of Elec The appointment will be subject to the provisions of T trical Engineering. The stipend offered is £1,650 per a 1 Government and Other Officers Superannuation annum. It is desired that the applicant should take up Act. 193/, and the successful applicant will be required to his duties as soon as possible, and not later than 1st pass a medical examination. January, 1947. Forms of Application may be obtained from the Borough Six copies of the application, together with the names Electrical Engineer 188. Lord Street. Southport, to whom of three referees, should be sent before 1st November. they should be returned not later than Saturday. 14th 1946. to the undersigned, from whom further particulars may be obtained. Demonsteator ” “ enveI°P e endorsed' " L a d y C. G. BURTON. The University, Secretary. Town Hall. Southport. E ' BDGAE PETo™ Clerk Edmund St., Birmingham, 3. 2282 23rd August. 1946. 0wn 23!7 August 30, 1946 E l e c t r ic a l R ev iew 63 THE SUSSEX ELECTRICITY SUPPLY COMPANY number of vacancies exist in established telephone l i m i t e d , littlehampton A manufacturing and operating co. in South America for experienced Apparatus and Equipment Engineers. Mains Assistant Adequate salary offered for minimum of 8 yrs.’ experience, with age limits 25-35. Interviews arranged in London by PPLICATIONS are invited for the above position appointment. Write in confidence, in first instance, giving A from Engineers with the necessary qualifications. full details of qualifications and experience, and stating Practical experience in E .H .T . and L .T . overhead and salary required, to — Box D.6042, A.K. Advg., 212a, underground distribution and substations, including erec Shaftesbury Avenue, W.C.2. 2290 tion. maintenance, fault location, control and organisation PPLICATIONS are invited for the position of Winding of labour is required. Minimum technical qualification, A Shop Foreman with a progressive electrical engineer higher National Certificate, Graduate I.E.E. preferred ing firm in East London specialising in motor repairs of Salary in accordance with N .J.B . Schedule. Class B, Grade all sizes, both A.C. and D.C. Applicants must have wide 7/4 first year, rising to Grade 6 after two years' satisfac experience in, and be fully conversant with, the following : tory service. Pension scheme and other benefits. (a) Taking particulars of windings and obtaining former Applications, stating age. training and experience, sizes; (b) Methods and materials for insulating; (c) Arma together with copies of recent testimonials and endorsed ture and stator winding of all sizes; (d) Coil winding of " Mains Assistant.” should be forwarded to “ Silvcrlands,” all sizes, including heavy bare strip; (e) Shop organization, 37. Alexandra Road. Epsom, Surrey, not later than rate fixing and control of mixed labour. Applicants should September 7th. Interviews will be arranged in London state age, qualifications and experience, and if selected for for September 17th, 1946. 2342 interview their travelling expenses will be refunded. Apply—Box 2278, c/o The Electrical Review. MID-LINCOLNSHIRE ELECTRIC SUPPLY CO. LTD. SSISTANT Foreman for winding department. A.C., A D.C. Motors, fractional to 500 h.p. Permanent Overhead Linesmen progressive position to suitable applicant.—Higgs Motors, Witton. Birmingham. 106 PPLICATIONS are invited for the position of Over RITISH Electrical and Allied Industries Research A head Linesmen. Applicants must have had experience B Association, Electricity Supply Research. The in the erection of H .T . and L .T . overhead lines and rural Electrical Research Association requires one or two type substations. Conditions of service and rate of pay Technical Assistants for research into problems of elec in accordance with Schedule for District Council No. 7, tricity distribution, e.g.. load characteristics of consumers East Midland Area, at present 2s. 3d. per hour per 47-hour and groups of consumers, determination of costs of supply, week. The successful applicants will be required to etc. Salary £350-£450 exclusive of cost-of-living bonus participate in the Company's Superannuation Scheme. (Whitley Council) and superannuation (F.S.S.U.). accord Applications in writing, stating age. details of previous ing to qualifications and experience. Candidates should experience and accompanied with copies of recent testi have some practical experience in electricity supply. monials. should be addressed to the Constructional Applications should be made to the Director. E.R.A.. 15. Engineer. Mid-Lincolnshire Electric Supply Co. Ltd ., Savoy Street, London. W.C.2. 2232 North House, Grantham, not later than 14th September. U Y E R for electrical mfg. coy., must be energetic and ______2338 B capable of maintaining first-class chasing system. Permanent progressive position. State age, salary, and CITY OF LONDON ELECTRIC LIGHTING CO. LTD. include testimonials.— Box 2137. c/o The Electrical Review. Junior Draughtsman A B LE manufacturers require keen man about 24 to 35 C at head office in London. Trade association and legal experience of advantage. Prospects for right man. Pension A PPLICATIONS are invited for the position of a Junior scheme. Applications will be treated in strict confidence. Draughtsman in the Distribution Department of the Write full particulars and salary required.—Box 2275, c/o above Undertaking. The Electrical Review. Applicants must have been trained as Draughtsmen and have experience in a Drawing Office of an Electrical Under H I E F Draughtsman required for drawing office staff taking. Electrical qualifications will be an advantage. C of six products : electrical motors, generators, rotary Salary according to age and qualifications. transformers, motor alternators up to 10 kW, all fre Applications, giving full particulars, to be sent to the quencies. all voltages, including high tension. Salary according to ability, south-east London district. Reply undersigned not later than September 12th. stating experience, technical training and salary required G. H. FOW LER, M.I.E.E.. to—Box 2309, c/o The Electrical Review. Falcon House. Distribution Supt. H IEF Progress Engineer required by firm of electric Aldersgate St., London, E .C .l. 2244 C motor manufacturers, London dist. State experience ESSEX EDUCATION COMMITTEE and salary required.—Box 2084, c/o The Electrical Review. / C L E R IC A L Assistant required for stores office. Must T 7 L E C T R IC A L Maintenance Fitters required, one in ^ have good knowledge of electrical material.—London each of the five Divisions of Essex, to carry out Electrical Co., 92, Blackfriars Road, S.E.l. 104 maintenance and running repairs of school canteen PTONTROL Gear Manufacturers, near London.- require equipment. ^ young engineers for estimating and technical work.— Applicants must have served an apprenticeship with a Box 9458, c/o The Electrical Review. recognised firm of electrical contractors. Preference will RAUGHTSM AN required by manufacturers of Electric be given to applicants who have had experience in main D Motors in London area. Good prospects for suitable taining and repairing modem refrigerating plants. man.—Box 2316. c/o The Electrical Review. Wages according to appropriate trade union scales of RAUGHTSMAN required for switchgear contract pay for the district. Service van provided. D work on Cubicle and Flat Back types of A.C. and Further particulars obtainable from the Chief Education D.C. Switchboards. Full particulars of experience, Officer, County Offices, Chelmsford. 2318 technical training and salary required to—Erskine. Heap & Co. Ltd., Lancashire Switchgear Works, Manchester 7. N Experienced Technical Writer required by a London 2339 A company for the preparation of advertisements, TARAUGHTSM AN wanted, experience in transformers, catalogues and operating manuals for industrial and scien promising position for versatile young man. Apply, tific equipment concerned with instruments, electronics stating age, experience, salary required, to — Brentford and physical apparatus. Applicants should have the Transformers Ltd.. Windmill Rd., Brentford. Middx. 2255 requisite technical background and be capable of handling T^RAUGHTSM EN (Electrical), experienced in design and the firm’s publicity work, but applications are invited layout of power and substations. H.T. and L.T. dis from young men who, otherwise suitable, could assume tribution systems, factory equipment and lighting con fuller responsibility for the latter duty after experience nected with gas and chemical plants, required by North- with the company. A permanent and progressive post Fast Coast engineering company. Apply—Box 2300, c/o offering excellent opportunities for a first-class man. Apply, The Electrical Review. giving full details of experience, qualifications, salary ex pectations etc.. to— Box 2254. c/o The Electrical Review. T ^ R A U G H T S M E N required by switchgear engineers. A RMATURE Winders and Improvers, required, A.C. Experienced in contract work, protective gear dia J\ ori/i n c top rates, good working conditions.— grams or design. Applications in writing, with full parti Electrical. Power Repairs (Gillingham) Ltd., Strover culars. to— Ferguson, Pailin Ltd .. Manchester. 11. 86 T^LECTRIC Motor Repairs. Winding, etc.. Foreman ATT7ItEaWinders and Improvers wanted for general required for small repair shop. London district. A work A.C. and D.C.. top rates.—Phillips & Partnership basis could be considered.— Box 2233, c/o The Sons Electrical Ltd .: 40. Waterford Road. S.W .6. 9496 Electrical Review. 64 E l e c t r ic a l R e v ie w August 30, 1946 T ^ L E G T R IC A L and radio wholesalers, large staff and TNSPECTOR required by manufacturers of small and turnover, E.W .F., require as Sales Manager man of medium size A .C. Motors in London area. Sound ability, personality, with wholesale experience. Permanent, knowledge of testing and detail Inspection essential. Good remunerative and progressive post. Midland connection prospects for suitable man.— Box 2315, c/o The Electricai and domicile preferred. Letters.—F. Westerman (Whole Review. sale) L td., 94. Dale End, Birmingham, 4. 9486 N S T R U M E N T Makers and Service Engineers required T^LEC TR ICA L Engineer, age not over 35, required for I for Mechanical and Electrical Instruments used in con large modern industrial plant in West Africa. Must nection with the testing of Aero Engines and general be qualified technically and practically in the installation, industrial plant. Please state general training, experience, operation and maintenance of industrial generating plant, position and salary, and forward any inquiry to The switchgear, transmission and distribution equipment, all Employment Manager, Messrs. Rolls-Royce Limited. types of electric motors, factory, office and household Derby. 2337 appliances and wiring. Salary from £700 per annum, T U N IO R Draughtsman required. Experience in detaii- separation and children’s allowances married men. Tours ing small mechanical mass-produced components. In of 21 months' duration, free passages, furnished quarters, teresting work and good prospects for suitable applicant.— membership to pension fund. Apply, giving full particu “ Diamond H ” Switches Ltd., Gunnersbury Avenue. lars of training and experience, to—Box 1280, c/o Charles London, W .4. 2245 Barker & Sons Ltd.. 31, Budge Bow, London, E.C.4. 2247 T A D Y Tracers, light electro-mechanical engineering work. T^LEC TR ICA L Engineer, preferably with experience of Wembley district. Apply, giving age, experience and cable work, required for the technical control of cable wage required, to—Siemens & General Electric Railway contracts. Vacancy is in the West London area. Salary Signal Co. Ltd.. East Lane. Wembley. 2266 offered is from £400 to £600 per annum, depending on EADING domestic appliance manufacturers urgently experience and qualifications. Write— Box 2797, c/o L require commission only Representatives covering White’s Ltd.. 72. Fleet Street. E.C.4. 2260 the following counties: Bedfordshire, Essex. Huntingdon "C'LECrBICA L Engineer required for North East Coast shire, Cambridgeshire. Norfolk and Suffolk. Fullest ^ iron and steel works. Must be experienced in main particulars to—Box 2182. c/o The Electrical Review. tenance and/or production of heavy electric equipment; EADING Sound and Cinema Equipment Company should also be capable of planning for development of L requires Sales Representatives in London. Cardiff. plant. Apply, stating age, experience, technical qualifica Bristol, Birmingham and Newcastle districts. Applicants tions and salary required, to—Box 2214, c/o The Electrical should give full details sales experience past ten years and Review. possess car. Good salary and commission.—Box 2322, c/o LECTRICAL Fitters required for general overhaul The Electrical Review. E work on all types of electrical plant for large repair T ONDON Patent Agents require Assistant with good shop in London area. Only men with previous experience ^ knowledge of electrical engineering, preferably a need apply. E.T.U. rates and conditions. Write, stating graduate. Previous Patent experience essential. Write age. experience, to— Box 2030, c/o The Electrical Review. stating salary required and previous experience to—Box 2328. c/o The Electrical Review. T^LECTRICIAN. Must be good at power and used to ll/rA N aged 20 to 25 years, with B.Sc. (Engineering) automatic control. Also Armature Winder for repair shop.— Boys Ltd .. 187, Goswell Road, E .C .l. 2060 or Higher National Certificate in Electrical Engineer ing required for investigation and testing of high voltage LECTRICTANS at N.F.E.A. “ B ” or D.J.I.C. No. 8 power cables and accessories. Salary £300 to £400 accord 11 rates required in East Anglia. Only fully qualified ing to qualifications.—Apply Staff Officer. British men need apply to—The East Anglian Electric Supply Co. Insulated Callender’s Cables Ltd.. Belvedere. Kent, Ltd.. Finborough Hall, Stowmarket. 2280 quoting Ref. SR/3. 2121 X^N G IN EERS and Draughtsmen are invited to apply to l\/f”AN, under 30, with B.Sc. in Physics or Engineering a large electrical engineering firm in the Midlands or Higher National Certificate in Electrical Engineer which has vacancies in the switchgear department for ing, with specialised knowledge of electronics, required for Technical Sales. Contract, Costing and Design Engineers; investigation and test of power cables and accessories. also experienced Technical Engineers capable of handling Write, stating qualifications and salary required, to—Staff large projects for generation, transmission and distribution. Officer. British Insulated Callender’s Cables Ltd.. Belve Vacancies also exist for Draughtsmen for circuit diagram dere. Kent. 2053 and general work.—Box 69, c/o The Electrical Review. A f ~ IC H E L IN Tyre Co. Ltd .. Stoke-on-Trent, require L ’ ST1M A TO R S required. Age 25 to 40, with experience Senior Draughtsman with good experience of instal on small electro mechanical parts. Preference will lation electric machines, cables, switchgear. L.T. and H.T. be given to applicants with workshop experience and Minimum qualification. Ordinary National Certificate, Elec knowledge of finishing and assembly departments. West trical. WTrite Labour Office in confidence, stating salary London area. Write, stating age. fullest details of experi required for 44-hour week. 2302 ence and salary required, to—Box 2236, c/o The Electrical T>LUMBER-Jointer. E.H.T., required in East Anglia. Review. Apply—East Anglian Electric Supply Co. Ltd. (L.R.S.). X^XPERIENCED man required for battery service Finborough Hall. Stowmarket. 2291 4-* station, used to lead burning and replatal of car and pO W ER Plant Superintendent required for large Bir house lighting batteries. Replies to—Box 2283. c/o The mingham industrial concern tq take charge of operation Electrical Review. and maintenance of back pressure turbines, large water X^IRM in London area require several Senior Draughts- tube boilers, ancillary plant and steam services. Must be men for their transformer dept. Experience on large technically qualified (membership of Institution of Mechani high-voltage units an advantage but not essential. Very cal.Engineers and/or Institute of Fuel desirable), and have good salary and excellent prospects to suitable men. State had sound practical experience in order to operate and age and experience.— Box 2052, c/o The Electrical Review. maintain plant at highest efficiency. A house is provided (BREM EN. Heavy Electrical Power, for factories in the ?> n2iHSal ,re5i;- Annual remuneration approx. £475.— Isle of Wight, Hove and Preston areas, experienced Box 2033. c/o The Electrical Review. and capable of taking complete charge for augmented P RODUCTION Manager required for London factory supplies. 400 kVA and upwards.— Box 9380. c/o The moving to Brighton. Thoroughly experienced with Electrical Review. » „ of Production, particularly low voltage lamps T^O REM EN wanted to take charge of footmaking. sealing- S t i S r i P f v r?ust. be abIe to take fnI1 control. Please o7sk S in experience and salary required.—Box -1- in. pumping and capping, by firm in N.W. London. 2186. c/o The Electrical Review. Good prospects. Write, giving full details of experience and qualifications, to—Box 2298, c/o The Electrical Review. T jR O D T .1 T 1 ON Superintendent required with extensive M PERIAL Chemical Industries Ltd. Applications are HensJ?IwwtlCerf1Il- tbe manufacture of electrolytic con- fo— ^ i B,e’ fT P crrn ce and salary required. I invited for the position of Shift Charge Engineer in Electrical Review. the company’s power stations in Runcorn and Widnes. X Ass,?tant required by electrical engineer- Applicants, who should not be less than 33 years or more -V mg and sound equipment firm. London area. Previous than 45 years of age. must have had a sound practical and similar experience preferable. Post entails a certahi technical training in mechanical engineering and good experience of the shift operation of modern steam power ™r?eU^onden??tmandWOrk *?- 35 »cchnicaf comme^ial ' station equipment, including turbo-altemators and water mTncing lriarv « m ?^°A'? .,0n w,th suppliers. Com- tube boilers of not less than 10,000 kW and 50.000 lbs. quahflcIti^A opM ing a°ePrtnca?r- acrordiD® steam/hour capacity respectively. Generous commencing salary. Applications, which must give the applicant’s date of birth and full details of qualifications and experience, of s h ^ ^ h T k ,"1, by hish-class manufac- including a list in chronological order of posts held, should North Midlands'. Must he f ^ Y o r ts h te be addressed to—Staff Manager, Imperial Chemical In SS?eitatTth electrical' contractors and II*ctricity dustries Ltd.. General Chemicals Division. Cunard Build undertakings. Car essential. RemunerativT r„. ing, Liverpool. 3. 2239 able man. Reply—Box 9487. c/o Tht ElectricSpR^iew” August 30, 1946 E l e c t r ic a l R e v ie w 65 R EQ U IR ED , Confidential Secretary to directors of old- TEC H N IC A L Sales Representative required by a firm i t established firm of electrical contractors. Southern -L of Electrical Engineers for Bombay / Calcutta. Chanties.— Box 2279. c/o The Electircal Review. Candidates preferred single, not over 35 years, and of O EQUTRED for service in India. Technical Assistant for good education. Good experience in electrical engineer -LV the head office of a company controlling a group of ing essential, some sales experience, and ability to electricity undertakings. Must possess sound technical estimate for lighting, lift and fan installations, and training in electrical engineering and subjects connected supervise execution. Salary £630 p.a., annual incre with thermal power stations. A.C. and D .C. systems. E .H .T . ments £45. Initial agreement 4 years, passages paid. and L-T. supplies. Extensive practical experience not an Reply in writing, giving full details of experience and essential qualification. Salary according to qualifications. present employment to Ministry of Labour and National 5 years’ agreement, home leave with pay on renewal, Service. London Appointments Office. 1-6. Tavistock provident fund, free medical attention. Write, with full Square. London. W.C.l. Reference F.A. 530. 2326 particulars, to— Box 1278. c/o Charles Barker & Sons Ltd.. TH E Salcombe Gas ac Electricity Co. Ltd. 3 1, Budge Row. London. E.C.4. 2249 Jointer/Linesman required immediately, D.J.I.C. T> EQUTRED for supervisory posts in Birmingham. Glas- conditions. No. 12 Area, single man essential. Applica L V gow and Cardiff. Engineers to control small 6taff tions. giving age and experience, to be addressed to— engaged on installation and maintenance of high grade " Silverlands.” 37. Alexandra Road. Epsom. Surrey. No electronic and light electro-mechanical equipment through interviews except by appointment. 2209 out branch office area. Applications invited from men with 'IM E Study Engineer or Ratefixer. with experience of practical experience, sound electro-technical training, good 1 light electrical and/or radio assembly wort and small education and personality. Salary approximately £550 per machined parts. Good prospects for a keen, energetic man. annum, plus car allowance and expenses. Two months* Slough district. Write, giving full details of training and training given in London, with salary, plus living allow experience and state age and salary required, to— Box 2264. ance by arrangement. Write full details, stating age. c/o The Electrical Review. training, experience and when available.— Box 2083, c/o TRA N SFO RM ER Design Engineer required by progres- The Electrical Review. sive firm manufacturing all types of transformers up ALES Engineer for transformer company. Young man to 1.000 kVA. Write, stating age. experience, salary required, to—Brentford Transformers Ltd.. Windmill Rd.. S with connections in the industry, good education and Brentford. Middx. 2256 technical training to enlarge and build up existing sales TT R G EN T LY required. Electrical Testers with experience connections of important special type equipment. Write, ^ of testing A.C. and D.C. machines, also transformers. stating age. experience, salary required, to — Brentford Applicants should possess technical knowledge equivalent Transformers Ltd .. W indmill R d ., Brentford. Middx. 2257 to Ordinary National Certificate. Apply, stating age. ex ALES Organiser wanted b5' established contractors. perience and details of technical training, to—Superinten S East Midlands area to take complete charge to dent. Personnel Dept., British Thomson-Houston Co. Ltd.. develop sales and service in industrial and domestic Rugby. 2063 field. Only applicants with previous experience and AV" ANTED by well-known firm in Bedfordshire manu- accustomed to dealing with suppliers need apply. Write, * ’ facturing fractional h.p. motors. Designers whose giving full particulars, stating salary' or commission re responsibilities will include new designs, issuing windings quired.— Box 2324. c/o The Electrical Review. and all technical data. Applicants must have up-to-date AT.ES Representative required by manufacturers’ agents experience in A.C.. D.C. and universal types, being fully S for Oxon and Berks. Salary and commission. Car conversant with present-day requirements. Apply—Box essential.—Box 9491. c/o The Electrical Review. 2281. c /o T he Electrical Review. ALES Representative with experience required by large A V ’'A X T ED, experienced Designer/Production Engineer S manufacturer for north-west area, specialising in elec * » for domestic electric appliances, for small London tric cookers, water heaters, kindred appliances. Preference factory. Write, giving full details of experience and salary given to applicants having established connections in this required, to—Box No. T.185. c/o Maurice Vernon Ltd.. area.—Box 2270. c/o The Electrical Review. 2. St. Andrew’s H ill. London, E.C.4. 2304 Q EC R ET A R Y -A cco u n ta n t. male or female, for electrical TV 'A N TED , Live Salesman, by engineering firm in N.W. ^ mfg. coy. employing 200/250. capable and energetic. ’ * London. Connection with mechanical and electrical Permanent progressive position to suitable applicant. trades essential, including public bodies and supply com State age. salary and include testimonials.— Box 2135. c/o panies. Details as to salary, etc.. to— Box 2253. c/o The The Electrical Review. Electrical Review. QENIOR Draughtsman required for large variety of AATELL-established firm of sign manufacturers have a ^ rotating electrical machines of small and medium * » vacancy in their Neon Dept, for an Assistant Esti size. State age. experience and salary required.— mator. Applicants should be capable of interviewing clients W Mackie & Co. Ltd .. 129. Lambeth Road. London. and supervising installation and maintenance work. Per S.E.1. 2310 manent and progressive post for suitable man. Apply, QHOWROOM Assistant required at Wey bridge. stating experience, age and salary required, to—Box 2036. ^ Commencing salary £255 per annum plus war bonus c/o The Electrical Review. at the rate of £59 16s. per annum. Applicants should AATELL-known Electrical Engineering Company have have had previous experience and be able to arrange » ' vacancies for suitable lads, over 16 years of age. showroom displays. F u ll conditions of service and with matriculation or general school certificate, for duties ran be obtained on application to— Area Officer apprenticeship in the above industry. Good rates of pay (Consumers). London and Home Counties Joint and living accommodation provided.—Box 101. c/o The Electricity Authority. Burford. Dorking. Surrey. 9508 Electrical Review. TATION Engineer capable of designing, erecting and A V" OR KIN G Charge Hand required for electrical instal- S running 500-kVA steam generating station in Devon ’ * lation wort, large and small contracts. Must be shire. Permanent position. Write— Wilson, Branscombe. adaptable. Permanent position for right man. with paid Highweek. Newton Abbot. Devon. 2162 holidays. South London district.—Box 9468, c/o The STO REKEEPER for electrical mfg. coy., must be cora Electrical Review. ls petent to take complete charge and maintain records. OUNG Electrical Engineer required for South Africa, Permanent progressive position. State age. salary and Y with experience in neon sign and fluorescent lighting include particulars of previous positions.— Box 2136. c/o manufacture and installation.—Box 2251, c/o The Elec The Electrical Review. trical Review. PURVEYORS and Engineers with field experience of ^ H.V. and L.V. overhead lines required by firm of APPOINTMENTS FILLED electrical contractors for work in Scotland. Good Dissatisfaction having been so often expressed that un and prospects for energetic men. W nte. giving full successful applicants are left in ignorance of the fact that details of experience, age. etc.. with copies of testimonials, the position applied for has been filled, may we suggest and state when free, to— Box 21/0. c/o The Electrical that Advertisers notify us to that effect when they have Review. arrived at a decision? We will then insert a notice free nTECHNICAL Laboratory Assistant required. Qnalffica- of charge under this heading. J- tions to Higher National standard in electrical engi X>RIG HTO N Corporation—Shift Charge Engineer; Roch- neering ; to take charge of small testing and (h'intopmcnt J i dale County Borough—Second Asst. Mains Engineer laboratory dealing with thermostats. ^ d domesti and Asst. Meter Engineer. All applicants are thanked. electrical accessories. — “ Diamond H Switches Ltd .. Gunnersbury Avenue. London. >>.4. . . SITUATIONS WANTED T R A N S F O R M E R Contracts Engineer for inside wort:. A O CO U N TAN T seeks position. Experienced in all books -1- used to dealing with enquiries and orders up to 3-000 of account and preparation of final figures, manage kVA ~ Write, stating age. experience and salm r required. ment. staff control, costings, statistics, general correspond to—The Personnel Officer. Foster w 19 ^¡292 ence and all office routine.— Box 9394, c/o The Electrical gear Ltd.. Apex Works. South Wimbledon. S.W.19. Z-9- Review. 66 E l e c t r ic a l R e v ie w August 30, 1946 A Director of Sales.—See “ A Sales Organisation ” X ? LECTR ICA L and Plastics Engineer, who held the post under “ Agencies ” column on page 70. X-i of chief engineer for many years in an electrical A position with a future required by ex-Flight- engineering firm and later in a plastics firm, and who is Lieutenant, experienced sales manager and buyer in a well-known writer of technical articles on electrical and the electrical trade.—Box 9438, c/o The Electrical Review. plastic subjects, requires post as Sales Manager or Assistant Sales Manager, or Publicity Manager. Write to—Box 9477, A CCOUNTANT-Secretary, 37, 14 years' experience c/o The Electrical Review. electricity supply industry, England and abroad, le c tric a l Engineer, a.i.e.e., m.a.s.e.e., 25 requires position with progressive concern.—Box 9439. c/o The Electrical Review. E years electrical contracting, seeks position, state requirements.— Box 9506, c/o The Electrical Review. A D V E R T IS E R (32) seeks position as Technical Sales LECTRICAL Engineer seeks position, thoroughly Representative. Administrative and technical experi E qualified practical and technical, power and lighting ence in manufacture, design, production, costing, etc., of A.C. and D.C. layouts, over 30 years’ experience, highest small motors and associated equipment.—Box 9404, c/o The Electrical Review. testimonials, age 53, supervisory position preferred.— Box 9415, c/o The Electrical Review. A D V ER TISER (50), Buyer, stock control, costing, first- X LEC T R IC A L Engineer, age 26, Graduate I.E.E., good class commercial background and organizer, experi X-J technical and practical experience, desires progressive ence all types of electrical supplies and accessories, machine post offering work of design or engineering nature in con and small tools, metals, steam fittings, available at early nection with A.C. and D.C. equipments. Services available date.—Box 9478, c/o The Electrical Review. one month’s time. West Midland area preferred.—Box A .M .I.E.E., A.M.I.Mech.E., age 32. 13 yrs.’ experience 9485, c/o The Electrical Review. in design, manufacture and application of electric LECTRICAL Engineer (25), Grad.I.E.E., motors, and in the workshop management of maintenance E Grad.I.Ec.E., etc., Lower and Higher National of diverse mech. and elec. plant, seeks responsible post, Certificates Electrical and Mechanical Engineering. home or Dominions, on plant maintenance, works produc Author of articles, papers, etc., part-time technical tion or technical sales. Available immediately.—Box 9494, lecturer seeks technical and/or commercial sales position c/O The Electrical Review. in Dublin. Would travel for a British firm.—Box 9505, A .M.I.E.E., age 32, ex-B.T.H. Willesden apprentice, c/o The Electrical Review. experienced supervising installation, testing and main X LE C T R IC A L Supervisor (43), at present own business tenance electrical industrial installations and distribution, -X-i as contractor, exp. all branches electrical installation seeks progressive appointment.—Box 9470, c/o The Elec work, estimating, costing, correspondence, as well as prac trical Review. tical exp., seeks progressive position as Representative, A .M .I.E.E. (41), ind. app., experienced O.H. and U.G. sales and service, or with factor. Own car.— Box 9469, distribution systems, power stations. Practical, tech c/o The Electrical Review. nical and commercial experience electricity undertakings. LECTRICIAN, capable, long experience installation Situation desired overseas.—Box 9476, c/o The Electrical E and maintenance, seeks advantageous change, S.W. Review. London, N. Surrey areas.— Box 9464, c/o The Electrical A SSISTANT Chief Ratefixer and Time Study Engineer, Review. mass production chokes to 45,000 kVA, transformers, X LEC TR ICIA N wants job anywhere, 30 yrs. in trade, f.h.p. motors to 50,000 kW. turbo-alternators, cores, ■*-* all systems, charge or otherwise.— B , 13. South Vale. windings, assembly, fitting, etc., costing, estimating, latest S.E.19. 9427 time methods and procedure, present position last 10 X N G E N E E R , age 41, practical experience covers most years, after apprenticeship and practical experience, age 37, X-i aspects electricity supply work and organization. seeks change, chief or managerial.—Box 9399, c/o The Specialised knowledge tariffs, measurements, relays, H.V. Electrical Review. and general testing techniques applied over a wide field: A SSOCIATE I.E.E., age 46, 5 years' charge factory A .M .I.E .E ., versatile, adaptable, desires change, moderate maintenance and installation, seeks post Coventry salary.—Box 9426, c/o The Electrical Review. area.— Box 9501, c/o The Electrical Review. XpX-Arm . Art. R.E.M .E., experienced all types of instal- /"‘'IABLE Foreman seeks progressive position, 20 years’ X -i lations and A.C./D.C. machines, requires position as experience all types and processes of rubber cable Maintenance Electrician, London area.—Box 9475, c/o manufacture.— Box 9414, c/o The Electrical Review. The Electrical Review. /CH A R TER ED Electrical Engineer (39), design, technical X^XPERIENCE counts. Estimating, supervising, ^ sales and consulting experience motors, control gear, ■f-* specifications, schemes for complete installations, transformers and instruments, invites enquiries re senior introduce new business, make contracts pay, good sales executive post, London area or Home Counties. Know man. would represent good firm, age 48. own car, London ledge of marine, mining and industrial markets. Willing or Home Counties.—Box 9429, c/o The Electrical Review. to undertake representation.—Box 9424, c/o The Electrical X^X-R.A .F. Accounts seeks position in costing. Pre-war Review. X -i exp. book-keeping, gen. accting. & costing. Mod. sal. /CHARTERED Electrical Engineer, 42, seeks post, W. London area preferred. Apply—Box 9490, c/o The experienced administration and installation of elec Electrical Review. trical and radio equipments.—Box 9423, c/o The Electrical X^OREM AN seeks situation. Long exp. production and X assembly of elec. apparatus and control and training OMMUNICATIONS Specialist, just demobbed after of male and female labour.—Box 9473, c/o The Electrical C 3è years’ commissioned service in Electrical Review. branch, R.N.V.R., requires job in which 17 years’ wide /^J_ENERAL Manager seeks an appointment with elec- experience this field will be used to best advantage. trical engineering firm where wide knowledge of the Experience includes development work on, and instal electrical industry can be fruitfully employed. Works, lation, operation and maintenance of, marine and air commercial and sales experience gained at two of the craft W/T, R/T and D/F gear; high-speed line largest organizations in the country. Products covered telegraphy (Creed perforators, column printers, etc.); include motors, transformers, switchgear, bakelite acces teleprinters; picture telegraphy equipment; auto tele sories. lighting units, cables, electric cookers and domestic phone and carrier telephony circuits; Asdic. Radar and appliances generally. Capable organiser and staff pulse transmission techniques; modulated light comm, controller.—Box 9433. c/o The Electrical Review. systems. Holds current 1st Class P.M.G. Certificate / ^ L R A D .I.E .E . (28), excellent academic record, appren- and prefers unusual job abroad. Age 34. Minimum ticeship, experienced works, test, contracts. D.O. on salary £600 p.a.—Box 9504, c/o The Electrical Review. general elect, equipt. and installations, seeks post on .F.H.(Hons.), A.M.I.E.E., A.I.Mech.E., age 33. 4 Tyneside.—B’ox 9493, c/o The Electrical Review. D years design, construction and maintenance H.T. T F the Chief Electrical Engineer in charge of a and L.T. rural supply systems, 5è years in Government selected station in South-East England could research establishment on design of aerial rotation utilise the services of a qualified cost accountant (39). systems and other electro-mechanical problems in con with eighteen years’ public utilities experience, would nection with Radar Stations; some radio research work, he care to write— Box 9507. c/o The Electrical Review. with experience in pulse and C.W . techniques, seeks X N D U S T R IA L Electronic Designer seeks responsible permanent and progressive post, London area preferred.— post. Box 9442, c/o The Electrical Review. Box 9408. c/o The Electrical Review. E E N Electrical Engineer (21), disengaged Oct.. desires RAUGHTSMAN-Designer, experienced electrical K*. • progressive iwsition; having H.N.C. and served an D heating design, requires a position in Swansea area.— Box 9499, c/o The Electrical Review. Review1 apprenticeship.—Box 9444, c/o The Electrical LECTRICAL Engineer, requiring change of em T IVERPO O L district, Electrical Engineer with technical E ployment. seeks progressive and responsible post, and extended commercial experience desires occupation preferably in South or South-west England. Wide experi with manufacturers, contractors or others. Exoerienced ence in installation and maintenance. Good worker.— estimator; familiar with markets.—Box 9462 c / n The Box 9435, c/o The Electrical Review. Electrical Review. ’ August 30, 1946 E lectric a l R ev iew 67 M A N U F A C T U R E R S ' Agent desires to represent a CITY OF PORTSMOUTH a(4.w v k Dj urer’. *n . ^ e Midland Counties, a good long estaonsnea connection in the wholesale electrical and radio rpEN D ERS are invited for the purchase and removal of n / m ’ i eil^i.Ile™*'ion commission, use own car.— Box -*- one Westinghouse 50-b.h.p. Direct Current Electric ^ i°* \ c/A^ T te»Electr:cal Review. Motor, 900-1.100 r.p.m.. in good working order. Forms of JW A V A Ii Officer (Electrical Branch), aged 32, desires tender may be obtained on application to the Contracts situation of trust and responsibility. Over 5 years’ and Supplies Section, City Treasurer’s Department. 48-51. Commissioned Service, 2 years teaching R.A.F. Electrical Clarence Parade, Southsea, and tender^ must be delivered School. Released 30th September.— Box 9463, c/o The Electrical Review. to the undersigned in the envelope provided not later than 10 a.m. on Tuesday, 10th September, 1946. The envelope -Jointer, first-class experience all L.T. and must not bear any name or mark indicating the sender. T n^ca£ les' ^ t io n equipments, supervision.— Box 9^2 c/o The Eiectricai Review. V. BLANCHARD. LJURCHASING Manager. Gentleman with many years’ City Council Chambers. Town Clerk. experience buying all classes of materials for the engi 1. Clarence Parade, Southsea. 2308 neering trade, both electrical and mechanical, desires post in London area. Excellent knowledge of all requirements CITY AND COUNTY OF KINGSTON-UPON-H ULL both non-ferrous and ferrous materials, electrical com ponents, etc., etc. Salary at present £650 per year and H E Electricity Department has for disposal a 4-cylinder would accept same to commence. Age 49 years. Reply T Petrol Engine by Dormans of Stafford, and a 20-kW. to—Box 9489, c/o The Electrical Review. 220-volt D.C. compound wound British Westinghouse O A LES Manager, 26 yrs. formerly cont. agent, wide exp.. Generator (850 r.p.m.), which would be suitable for use tech. and pract.. good correspondent, typist (own as a motor. machine), whole or part time, London area. Norn, re Further particulars upon application to the General muneration.—Box 9386, c/o The Electrical Review. Manager, Electricity Department, Ferensway, Kingston- Q T O C K record, stores control, buying and general upon-Hull, to whom offers should be delivered not later ^ office experience, transformer manufacture with sound than noon. 9th September. 1946, in a plain sealed envelope knowledge of component materials, aged 36. desires endorsed “ Petrol Generator.” 2269 change.— Box 9413, c/o The Electrical Review. OW ITCHGEAR Engineer, B.Sc., 20 Years’ technical and PORTLAND URBAN DISTRICT COUNCIL commercial experience, tenders and contracts, good connection, desires post with manufacturer or consultant. FT1HE above Council offer for sale by tender one Low — Box 9406. c/o The Electrical Review. Tension Three-panel Enamelled Slate Switchboard, r p E C H N IC A L Sales, F .H .P . Motors. Young man (24), manufactured by Messrs. Crompton Parkinson Ltd. The -1- 9 years’ experience small motors, seeks position, home switchboard comprises one'oil circuit breaker, 4 150-amp. or overseas.— Box 9393, c/o The Electrical Review. triple-pole knife switches, fuses, meters, etc. Further ^TRANSM ISSION Telephone Engineer, 11 years installing particulars supplied on request. Tenders in plain sealed -1- carrier and audio equipment, 3 years test and inspec envelopes, endorsed “ L .T . Switchboard.” should be for tion same. Own car. Midlands preferred.— Box 9492, c/o warded to the undersigned not later than 8th Sept.. 1946. The Electrical Review. IVOR G. EVANS. T 17O R K S Manager requires similar position London area. Electricity Dept., Electrical Engineer. ' “ 25 yrs.’ production experience light electro-mechanical Council Offices. Portland, Dorset. 2240 industry, radio, television, radar, domestic appliances. Efficient organizer and administrator. Excellent references. Cooksley & Co. Ltd . offer large selection of used —Box 9379, c/o The Electrical Review. A • Electric Motors, A.C. and D .C. Write— 21/25, V O U N G Electrical Eng. (22 yrs.) desires change. H.N. Tabernacle Street. London. E.C.2 (Monarch 3357/5«). 46 -*- Cert, std., 2 yrs.’ laboratory experience, including number of unused Portable Petrol-driven Welding development of aircraft electrical equipment.— Box 9481. A Sets, suitable for use with electrodes sizes 6 to 12.— c/o The Electrical Review. Fyfe, Wilson & Co. Ltd ., Bishop’s Stortford. 2332 .C.-D.C. Generating Set: input 400/3/50. slipring FO R S A L E A type: output 63 kW, 60 v.. 1,000 amps.; on bedplate. Traders buying and selling hereunder must observe the Complete.— The Electroplant Co.. Wembley. 2261 Restriction of Resale Order, S. R. & O. 1942 No. 958. .C. and D .C. House Service Meters, all sizes, quarterly A and prepayment, reconditioned, guaranteed one year. COUNTY BOROUGH OF PRESTON ELECTRICITY Repairs and recalibrations.—The Victa Electrical Co.. 47. UNDERTAKING Battersea High Street. S .W .ll. Tel. Battersea 0780. 19 .C. and D .C. Motors, all sizes, large stocks, fully HPHE Electricity Committee of the above Council invites A guaranteed.— Milo Engineering Works. Milo Road. tenders for the purchase and removal of the following : East Dulwich. S.E.22 (Forest H ill 2278-9). 102 One Battery-driven Locomotive: make. English Electric .C. Motors. l/75th h.p. to 5 h.p., -all voltages. Also Co. Ltd.. No. 572, year 1924: weight 2i tons, gauge 2' 6", A D.C.—The Johnson Engineering Co.. 319, Kennington wheelbase 3'. overall length 9' 4", overall width 4' Oi". Road. London. S.E.ll. Telephones, Reliance 1412/3. 57 The present battery, which requires renewing, is of 129- E R I A L Wire (covered), 50 ft. for 4d.— Hendon amp.-hr. capacity at 5-hr. discharge rate: it is composed A Distributors. 136. Hendon Way. N.W.2. 9445 of 40 cells with 9 plates per cell—type 1.M.V.4— and was A P P R O X . 130 unused 6.75-kW Meadows Portable Petrol- manufactured by the Chloride Battery Company. The driven Generating Sets. Export enquiries invited.— approximate h.p. of the motor is 5. Fyfe, Wilson & Co. Ltd ., Bishop’s Stortford. 2329 Arrangements for inspection can be made on application T T R A C T IV E weekly offers from The Electroplant Co.. to the undersigned, to whom tenders, in plain 6ealed A Wembley. Middx. A number of complete Dynamos or envelopes endorsed “ Sale of Locomotive.” 6hould be for Sets. 150 amps.-600 amps., 6/10 v. A number of Alter warded not later than Saturday. 14th September, 1946. nators from 1J-3 kVA. 230/1/50. almost new. Many M.G. The Committee does not bind itself to accept the lowest Sets of various descriptions. Ask for further details. 2262 or any tender. U S T IN 7 Van. 1934, new body just fitted, tyres and G. A. ROBERTSON. A engine in very good condition. £120.— Middlesex 40 & 41. Lune St., Borough Electrical Engineer. Electron Co. Ltd . Molesey 3541. 9452 Preston. . & W. Water Tube Boilers for disposal. Two 50,000lbs. 24th August. 1946. 2314 B per hour. 310 lbs. W .P., together with economisers, etc., erected or F.O .B . — Burford, Taylor & Co. Ltd .. BOROUGH OF MORLEY Middlesbrough. 85 ARLOW Whitney, Type B0643, Electrical Industrial Sale of Siren B Oven, 400/415 v.. 3-phase, fitted 4" Cambridge con trol, range 100/160 deg. F., with relay oven fitted 6 trays. For disposal, price £250. Write—Box 2289, c/o The FFERS are invited for the purchase and removal of Electrical Review. O one “ Gent ” 8-h.p. Siren, suitable for operation on A T T E R Y Chargers for home and export. 4 models. 3-phase. 400-volts, 50-cycles system, and complete with B 2-6-12 v.. 1. 2 or 4 amp. D.C., any mains voltage. main switchfuse and ancillary equipment, situated at the Generous trade terms. Write for catalogue.— The Banner Town Hall. Morley. Inspection may be made by prior Electric Co. Ltd., Hoddesdon, Herts. Tel.: Hoddesdon arrangement with the undersigned, to whom tenders should 2659. 97 be delivered not later than Tuesday. 17th September. 1946. .T.A. A comprehensive service is now available for E. V. FINNIGAN, B all classes of tools and equipment for the accumu Town Hall. Town Clerk lator trade.—B.T.A.. 246 Cavendish Road, London. Morley. Yorks. 2319 S.W.12. Tel.: Balham 6691/2. 92 fi 8 E l e c t r ic a l R e v ie w Aligns! 30, 1946 T3 E E AN TE E Festoon Striplight Holders, made of X20 UNCTION Electric Irons, superior design and quality, Bakelite. for use with 7/.029 T.T.R. cable, require J supplied with suitable stand. Also Junction Nickel- no tools or screws for wiring. Immediate delivery of any plated Torch Cases. Supplied for home trade and export. quantity. Passed by the fire authorities. Used by cor Distributors—Brooks & Bohm Ltd., 90, Victoria Street. porations and supply companies all over the world. Large London. S .W .l. Tel. Vic. 9550. „ , 49 quantities of British made Electric Lamps and Cable ETTLE Elements, Mica Elements and Spiral, all always in stock.—The Beeantee Illuminations (London) K voltages, all wattages. highest quality, competitive Ltd., Temporary ^ddress, 6, UpperStreet, Islington. prices. Enquiries to Irish Domestic Electrical Appliances London, N.l (Phone, Canonbury 4555). 71 I td.. 34 South Frederick Street. Dublin. Eire. 76 O E L T Grinders or Sanders. 4" wide belt. £5 5s.; 6" wide ADDERS, single and extension, from—Ramsay & Sons belt. £10 10s.—John E. R. Steel, Clyde Mills, Bingley. L (Forfar) Ltd ., Forfar. 9004 Phone 1066. 52 AMINATIONS, quantity stator and rotors for frac O N D E N S E R S . 21, 38, 146 kV A . 3-phase, 50 cycles, L tional h.p. motors.—Fosters. Ottways Avenue. C for P.F. correction. 200-amp.. 3-phase. B.B. Trunking Ashtead, Surrey. 9428 and accessories. 1,000 gals. Switch Oil. L .C . and ARG E number of Plating and Anodising Generators, for Armoured Cable. .12 to .3 sq. inch. 3 and 4 core. Oil- L the most part unused. Send requirements to Fyfe. immersed Sw. Gear. 1.100 amp. to 100 amp., A.C. Starter? Wilson & Co. Ltd ., Bishop’s Stortford (Tel. 1000/1). 2331 for Squirrel Cage Motors.— Midland Counties Electrical ARGE quantity Swedish Iron Laminations ex Trans Engineering Co. Ltd.. Grice Street. Spon Lane. West L formers, sizes from 1" x 30" to 53" x 30".—George Bromwich. 88 Taylor (Clayton) Ltd., 8-10, Oldfield Street. Clayton. /'CONTROL Panel for two Electric Furnaces, with switch- Manchester. '^ .g e a r , new. by Wilde-Barfield, fitted with Cambridge ARGE quantity 25-s.w.g. Double Silk-covered Wire, instruments and Watford switchgear.—W. H. Sugden Ltd., L recent manufacture and in perfect condition, also few Glenny Road. Barking. Essex. 2040 gauges enamelled available. Instrument Rectifiers, 1 ma. T V C . Motors, new, 200/230 volts. 1.400 r.p.m., 8 to 31$ and 5 ma., quantities.—Champion, 43, Uplands Way, -U h.p., also 110 volts. D .C., *21 h.p.. several available London. N.21 (Lab. 4457). 9378 with starters.—Stewart Thomson & Sons (L’pool) Ltd.. ARGE quantities Screws, Nuts and Washers, 0 BA to Fort Road, Seaforth, Liverpool, 21 (Telephone Number, L 12 BA; also Brass Hexagon Rods, 5/64" to I" A/F; Bootle 2697), or 28. Victoria Street, Westminster, London, also Brass Round Rods, 5/32" to £": also 4' X 2' X 18 S.W.l (Telephone Number, Abbey 2101). 96 gauge Brass Sheet; also various Brass, Phosphor Bronze T ^ L E C T R I C Cable, unused, on drums, .5, .3, .25 and .2, and Copper Strips; also 1" X £" and 11/16" X i" Copper 3 and 4 core, paper-insulated, lead-covered, steel-tape Bars. For disposal.—Box 2288, c/o The Electrical Review. armoured, for immediate delivery.—L. Lipton, Phoenix ARGE range of toasters, fans, portable and wall Works. Lamprell Street. E.3. 90 L electric fires, radiators, convector heaters, floor T ^ L E C T R I C Motors and Dynamos. We hold one of the standard and table lamps, electric irons (heat controlled -L ' largest stocks of new and secondhand motors. Second and others), vacuum cleaners. *hair dryers, novelty bowl hand machines are thoroughly overhauled. Inspection and fires, boiling rings, electric kettles, immersion heaters. tests can be made at our works. For sale or hire. Send (Radios very shortly available.) Large range of torch your enquiries to — Britannia Manufacturing Co. Ltd.. cases, cycle lamps and all types of lighting and H .T . 22-26, Britannia Walk. City Road, London. N .l (Phone, batteries, etc. Detailed list and catalogues available. 5512-3 Clerkenwell). 13 Place your orders in good time.— Brooks & Bohm Ltd.. T ^ L E C T R I C Motors, etc. We supply all types and sizes. 90. Victoria Street. London, S.W.l. Phone, Victoria etc.. of electrical machinery. Send your enquiries to 9550/1441. Inland Telegrams. ” Beebats. Sowest, —Be-Be Engineering, 3, Retreat Close, Kenton. Middx. London.” 66 Wordsworth 4928. 42 E S LIE Dixon & Co. for Dynamos. Motors. Switchgear. L E C T R IC Motors, 1/3 h.p., 3.000 r.p.m., D .C. 110 L Chargers and Telephones. — 214, Queenstown Road. E volts. Also 220 volts. Stock delivery, £6 each.— Battersea, S.W.8. Telephone, MACaulay 2159. Nearest John Steel. Clyde Mills, Bingley, Yorks. 84 Rly. Sta. : Queen’s Road. Battersea (S.R.). 18 X^LECTRIC Welding Plant, Engine and Electric, A.C. O N D O N Hospital, E . l. For sale, one Ricardo 6-cyl. driven, 300 amps, output, complete with weather L vertical type Petrol Engine, rated 150 h.p. at 1,000 proof covers.—Box 34. c/o The Electrical Review. r.p.m., coupled to one 50-kW. 220-v., 1.000-r.p.m. com pound interpole Generator by Crompton Parkinson. Com T^LECTRICITY for Country House. Complete equip- plete with bedplate, four cooling tanks, self starter, shunt ment for sale, including 20-h.p. Oil Engine, Electric regulator, switchgear, pipe connections, etc. Also one Generator and Booster Set, Switchboard. Battery and Kohler Generating Set, petrol-driven engine developing Motors, 200 volts supply, in good running order. Inspec 2§ h.p. driving generator 110 v.. 2 kW, with automatic tion. Apply—Baily, Grundy & Barrett Ltd., Electrical cut-out and cut-in. A ll in good working order. Can be seen Engineers. Cambridge. 9333 working by appointment with Surveyor (Bish. 8333). 2248 X^LUORESCENT Chokes, 80 watt, wax filled, silent in ll/TOTOR Generator Sets and Convertors, all sizes and operation. Prompt deliveries. — Micramatic Ltd.. LLL voltages from £ kW up to 500 kW in 6tock.— Meico Works. Congleton. Cheshire. 73 Britannia Manufacturing Co. Ltd.. 22/26, Britannia Walk. T^LUORESCENT Lighting. Constead Units for sale. City Road, London, N .l. Telephone, Clerkenwell 5512. -X Dispenses with all starter gear and gives instantaneous 5513 & 5514. 28 lighting, prevents maintenance worries, each unit guaran I f O T O R IS E D $" Bench D rilling Machine, 13 speeds, teed. Apply—Scemco Ltd., 6/7, Soho Street, London, W .l (Tel. G E R . 2034). 2241 L t X £ 12 2s. 6d.— John E . R .. Steel. Clyde Mills. Bingley. Phone 1066. 51 T^LUORESCENT Lighting Fittings. Extensive range, "VTAMEPLATES, Engraving. Diesinking, Stencils. Steel -X including Trough and Flush type, fitted with ” All in One ” “ Constead Unit.” Delivery 7 days, with tubes. Punches.—Stilwell & Sons Ltd.. 152, Far Gosford Write—Scemco Ltd., 6/7, Soho Street, London. W.l. Street. Coventry. 14 Phone. GER. 2034. 100 NE each: Everett Edgcumbe universal test set LUORESCENT Lighting: 18"-15w., 24"-25 w. and O A.C./D.C. four scales. Evershed 500-v. “ Wee” F 36"-45 w. Fittings, complete with tubes. Colours: megger, Evershed megger circuit testing ohmeter (Type White, Warm White, Daylight and Pink.—Scemco Ltd., S). Allen growler. Newton magnetiser 600.000 amp-turns, 6/7, Soho Street. London, W .l (Tel. GER. 2034). 2242 Mann Egerton magneto armature tester. Simms 6-plug EORGE Cohen, Sons & Co. Ltd. for guaranteed Elec test gaps ring type iron bracket. Simms test stand, base G trical Plant, Motors, Generators. Switchgear, etc.— only; quantity C.M.I. Co. slip rings in cardboard boxes Wood Lane, London, W.12 (Telephone. Shepherds Bush and brushes for magnetos and car dynamos.—H. Butter- 2070) and Stanningley. near Leeds (Telephone, Pudsey worth. 8. Parkstone Avenue. Southsea, Hants. 9500 2241). Established 1834. 27 A N E new 60-kVA, 3-phase, 50 cycles, oil natural cooled indoor type ” Yorkshire ” Transformer, ratio 10,500/ EAVY duty Arc Welding Plants, 200 amps. Price 400 volts, delta/star connected, complete with tubular H £31 10s. complete. Also Spot Welders, £36 15s.— welded boiler plate tank, lifting lugs, oil gauge, drain valve, John E . R . Steel, Clyde Mills, Bingley. Phone 1066. 50 thermometer pocket, rollers, porcelain insulators on both MMERSION Heaters for home and export available sides.,and the necessary first filling of Transformer Pool I middle September. Send enquiries to— Box 9497, c/o Oil. Price £100— Box 2276, c/o The Electrical Review. The Electrical Review. f\ N E 230-h.p., 730-r.p.m.. 400/440-volt. 3-phase, 50- NSTALLATION Tester, 500 v. Record Minor, £11. cycle. 3-bearing, slip-ring Motor by ” E.C.C.”. on I From stock.—Robins Electrics. 222 & 222b, West End fabricated base.—Newman Industries Limited. Yate. Lane. N.W.6. 83 Bristol. 2325 NSTRUM ENT Makers disposing of large quantity 1 m.m. T3ETRO L Electric Generating Sets, from 120 w to 1 5 I Sangamo Glass Jewels, immediate delivery ex stock. kW new designs, good deliveries.—Arthur Lyon & Co. 10s. per 100. W rite—Box 2286, c/o The Electrical Review. (Engs.) Ltd., Africa House, Kingsway, W.C 2 70 August 30, 1946 E l e c t r ic a l R e v ie w (Supplement) 69 0 VNE-tonN Short Wheel Base Open Trucks by Guy, Morris, O P IR A L S . first quality. 500. 600. 750 and 1.000 watt. ’ t ic ” new in 1941/43* ex M.O.S., all in excellent ^ all voltages, for immediate delivery.— Box 59. c/o condition. New batteries, good tyres, rugged construction The Electrical Review. considerable hard wear. Prices from TA FF Time Checking and Job Costing Time Recorders £120 to £180.—Mathew Brothers. Matbro Works. Sandy S (all makes) for quick cash sale. Exceptional con Lane North. Wallington. Phone. Wallington 4050. 1899 dition. Write — Box 528, Smiths, 100, Fleet Street. T R A C K IN G Cases, all sizes and descriptions, for home London. E.C.4. 31 ari ®xDort trade; also S/h Cardboard Cartons, all TEAM Turbo-Generating Plant available immediately sizes. L . Goldser & Sons. 14a, Rectory Sq., London. E .l. S for disposal: 1 used Oerlikon Back Pressure Steam Phone. Stepney Green 2550. 75 Turbine, with speed reducing gear and normal accessories, T > H O N E 98 Staines. 90-kW Ruston Diesel Set. 110 vo. 1.000 kW, 12.000/3,000 r.p.m., live steam 300 lbs./sq. in.. -1- D .C .; 25-kW Mirlees ditto, 110 vo.; 7/9-kW Ruston 350° C.. back pressure 17 lbs./sq. in.; 1 new 1.000-kW ditto. 110 vo.; 5-kVA Ruston ditto. 400/1/50: Weir Feed Oerlikon Three-phase Turbo-Generator Set, comprising Pump. 8J" X 6" x 13".—Harry H. Gardam & Co. Ltd.. back pressure steam turbine with direct coupled three- Staines. 60 phase generator, exciter, shunt regulator and air filter, LATIN G Generators, unused, several ranging from 350 live steam 200 lbs./sq. in., 500° F., back pressure 1.4 P to 700 amps., 6 to 12 volt, plain or with A.C. or lbs./sq. in., speed 3.600 r.p.m., 2,200 volts, 60 cycles/sec. D.C. motor drive. Particulars from—Stewart Thomson (if operated at 3,000 r.p.m., 50 cycles/sec., 1,800 volts, (Liverpool) Ltd.. Fort Road, Seaforth, Liverpool. 21 the set can give an output of 800 kW at P.F. = 0.8); (Bootle 2697); or 28, Victoria Street, London, S.W.l 1 used 400-kW Oerlikon Three-phase Turbo-Generator Set. (Abbey 2101). 63 comprising back pressure steam turbine, speed reduction .V.C. and Cotton-covered Bell Wire, single, twin, gear, three-phase turbo-generator, exciter, shunt regulator P triple and four core, in beautiful assorted colours, and air filter; live steam 450 lbs./sq. in., 300° C., back from 6s. 6d. per 100 yd s.; send 6d. for samples and lists. pressure 42 lbs./sq. in., 6,800/3,000 r.p.m., 400 volts. We also have in stock irons, fires, extension speakers, etc. 50 cycles/sec. For further particulars apply (in duplicate) —Northern Industries. Dept. 8. 199. Broughton Lane. to—Oerlikon Ltd.. Victoria House, Southampton Row. Salford. 7. 2217 London, W .C .l. 2274 E B U IL T Motors and Generators. Long deliveries can Q UPERIOR Type Builders’ Ladders now in production; R often be avoided by purchasing rebuilt secondhand ^ also Steps, Trestles and Extension Ladders. Phone— plant. We can redesign or replace surplus plant of any Shaftesbury Ladders Ltd.. 453, Katherine Road. E.7. size. Send us your enquiries. Over 1.000 ratings actually Grangewood 3363/4. 15 in stock here.—Dynam o & Motor Repairs Ltd .. Wembley T T S E D Double Flanged Bobbins, good condition, 2,000 Park. Middlesex (Telephone, Wembley '3121. 4 lines); also gross approx. Measurements 3g" overall. 8J" traverse. at Phoenix Works, Belgrave Terrace. Soho Road. Hands- 3" diameter flange. W ill sell all or part.—Joseph Harari. worth. Birmingham (Telephone. Northern 08981 26 42. Whitworth Street. Manchester. 99 ECORDING Apparatus. 2 M.S.S. 12" Turntables with \/'ACUUM Cleaner Parts. Hoses, braided, all diameters. R 15-w. Amplifier, M /C Microphone and Radio, £150.— * Commutators, bearings, fans, carbon brushes, driving B M /JC H A , London, W .C .l. 9480 belts, brushes, attachments and fittings for all makes. OTARY Converters in stock, all sizes; enquiries Wholesale only.—Vacuum Cleaner Supplies, 543, Moseley R invited. — Universal Electrical, 221, City Road. Road, Birmingham, 12. 80 London. E .C .l. 16 A T E R Tube Boilers in stock. Two 25,000 lbs. evap., OTARY Converters. 200-kW, 6.600/3/50 input 230 W 250 lbs. W .P.; One 25.000 lbs. evap., 175 lbs. W .P .: R volts. 2-wire D.C. output, complete with Trans Two 20.000 lbs. evap., 175 lbs. W .P .; Two 16,000 lbs. former and switchgear, seen running in Liverpool. 2,000- evap.. 190 lbs. W .P .; One 12,000 lbs. evap.. 200 lbs. W .P .: kW. 6,600/3/50 input. 418/462 volts, three-wire D.C. One 9/10,000 lbs. evap., 200 lbs. W.P. We install com output, complete with transformers, starting panels, D.C. plete, including brickwork. Economisers, pumps, piping machine panels. First-class condition. Two sets avail valves, generating sets and motors in stock. Please send able.— Stewart Thomson & Sons (Liverpool) Ltd .. Fort us your enquiries; we can give immediate delivery.— Bur- Road. Seaforth, Liverpool, 21 (Bootle 2697); or 28. Vic ford, Taylor & Co. Ltd., Boiler Specialists, Middlesbrough toria Street, London, S .W .l (Abbey 2101). 72 (Telephone, Middlesbrough 2622). 32 Q A C K S and Bags in excellent condition for all com- OOD Channelling, 3-wire, 160s. per 1,000 ft. delivered. modities, as low as 4d. each. Write— John BTaydon W Fuse Boxes, 3-way, 90s. doz.; 4/5-way, 105s. doz. Ltd., 230, Tottenham Court Road, W.l. Tel. No. Best seasoned timber, no restrictions.— Electrical Agencies Museum 6972. 79 (Belfast) Ltd., 32 College St., Belfast (Phone 24813). 9484 1,-h.p. Motors for immediate delivery, 200-220 and E A R C H L IG H T S (new), 10" and 20". also Reflectors, 4 230-250 volts, 50 cycles, split phase, sleeve bearing, S 20" to 44". — Hyams, 5. Glengall Road. London, automatic thermal protection, starting torque 225%. S.E.15. 9488 £8 15s. each in lots of 6 or more.— Box 9422, c/o The QELF-Priming Electric Pumps, 300 g.p.h., £12.—John Electrical Review. ^ E. R. Steel, Clyde Mills, Bingley. Phone 1066. 53 -kW and 2i-kW, 230/250-volt D.C. Generating Sets, Q E R IE S Type Variable Speed Commutator Motor, 5/2.6 5 complete with 4-cylinder, 10-h.p. Austin Engines, ^ h.p., 960/50 r.p.m., 230 v., 50 cycle. 1-phase, with with petrol tanks, radiators, fans and switchboards. Large b/brgs. and std., bare shaft ext. at both ends and hd. opd. number available.—Britannia Manufacturing Co. Ltd.. brush shifting mechanism with special ironclad wall mount 22/26, Britannia Walk, London, N.I. 103 ing. tot. encl., air break, p.b. opd. starter with h/v and 2 ft to 20 kW D.C. and A.C. Petrol & Diesel Generating o/l. For sale, £85.—Box 2285. c/o The Electrical Review. ** Sets, some packed for shipment.—Box 87. c/o The HADED Pole Induction Motors for 8", 6" table fans, Electrical Review. S with suitable blades, standard speeds.—Box 9471, c/o A _ f \ lbs. of 46-s.w.g. Double-wound Silk Copper Wire. 30s. The Electrical Review. per lb.— Stewart Thomson & Sons ( L ’pool) Ltd ., Glad QILK-covered Nichrome Eureka and Copper Wires, 32/48 stone Works. Fort R d., Liverpool 21 (Bootle 2697-8). 2065 s.w.g.; also 7/14 s.w.g. D.C.C. Copper Wire. For sale i ' A kW Generator, 220/250 volts, 800 revs., by Brush ex stoctf. W rite—Box 2287, c/o The Electrical Review. ^'-'Electrical Co.—W. II. Sugden, Glenny Rd., Barking. O PIRA L Elements for electric fires, boiling rings, and Essex. 2039 ^ other appliances, supplied to order.—Electrothermal 1 Q £ v amP-- 460-v.. Compound Interpole Protected Engineering Ltd., 270. Neville Road, London, E.7. 54 Generator by Crompton. 950 r.p.m., pulley TEA M Generating Plant. The following is a selection 17" x 9". 65-amp. 460-v. Ditto by B. E . White. 750 S of sets available in our comprehensive stock : 2,000-kW r.p.m.. pulley H i" x 8". 65-amp., 460-v. Ditto by B.T.H.Turbo-Alfcernator, 6.600/3/50.180/210-lbs. pressure, D. & M.. oil ring bearings. 200-amp.. 500-v. Ditto by complete with surface condenser and all auxiliaries, seen Crompton, oil ring bearings, half coupling.—Thos. W. running. 1.250-kW Brush Ljungstrom Turbo-Alternator. Ward Limited, Brettenham House. Lancaster Place. 400/3/50. 200 lbs. pressure, complete with surface conden Strand. London. W.C.2. Phone. Temple Bar 9631. 2090 ser and all auxiliaries, seen running. 750-kW Adamson/ 0£LrV kW Rotary Converters (2). with transformers and Mather & Platt High-pressure Pass-out Turbo-Generator. switchgear. input 6.600 volts. 3-phase, 50 cycles, 200-lbs. initial steam pressure, passing out 25,000 lbs. per output 420/210 volts; also A.C. and D.C. Motors. Switch hour at 80-lbs. pressure. 500 volts, three-wire D .C., with gear. Generating Sets, Welders, etc.— Midland Counties balancer complete with surface condenser and all auxili Electrical Engineering Co. Ltd., Grice Street, Spon Lane. aries First-class condition. Full particulars from— West Bromwich. 36 Stewart Thomson & Sons (Liverpool) Ltd.. Fort Road, Electric Motors, Dynamos, Transformers, Con- SeaTorth Liverpool. 21 (Tele. No. Bootle 2697); or 28. verters. etc.. etc.. at low prices.— S. C. Bilsby, Victoria’Street. Westminster, London, S.W .l (Tele. No. A.M.I.C.E., A.M.I.E.E., Crosswells Road, Langley, near Abbey 2101). 98 Birmingham. Phone. Broad well 1359. 21 7 0 (Supplem ent) E l e c t r ic a l R ev ie w August 30, 1946 f iO O 'amp" 8/12-volt Plating Set, motorised 400/3/50, 1 K ■-h.p. and 20-h.p. (or nearest), 3-phase. 400-volt. unused, complete with starter and voltage J-t-l slip-ring Motors and Starters.—Britannia Manu regulator.—Electric Machinery Co., Union Street, New facturing Co. Ltd., 22/26, Britannia Walk, London, IL L Islington, Manchester. 41 Spiral Elements, 230 v., ex stock, surplus from J n /5°-h P- D C - Motors, 440 v.. 750 revs., also smaller order, 5£d. ea. Sold in 1,000 lots. Electric sizes, ball bearings: also several 2-phase motors, 2/10 Heating Pads. 15" X 18", 30s. each wholesale.— Middlesex h.p.— W. H . Sugden, Glenny R d., Barking. 2042 Electron Co. Ltd . Molesey 3541. 9454 z L A l V 3/50 Squirrel Cage Motors. 3h.p. (3)at 720r.p.m.. 74 h.p. at 720 r.p.m.. 10 h.p. at 960 r.p.m ., new ARTICLES WANTED or good secondhand.—Fyfe, Wilson & Co. Ltd., Bishop's C C U M U LA T O R Plates (old) and lead Peroxide: as Stortford. 2330 A actual smelters we pay top price. Also old storage A A A Motors from 1 h.p. to 10 h.p., 400/3/50. Send batteries, transformers and whole installations purchased. 1 jv/v/vJ particulars.—W. H. Sugden Ltd., Glenny Rd., —Elton, Levy & Co. Ltd., 18, St. Thomas Street, S.E.l. Barking. Rippleway 3302. 2041 Hop 2825-6. 39 LECTR IC Lamps, quantities 15 watt, H. & L. voltage, O A O ffc- l " Screwed Conduit, light or heavy, gal- E urgently required.—Imperial Lighting Co., Pocock vanized or enamelled. Required at once Street. London. S .E .l. 9483 in small or large quantities. Building licence available.— "^ENGINEERING Technical Books (new or secondhand) Middlesex Electron Co. Ltd . Molesey 3541. 9453 wanted in any quantity. Attractive cash offers. Call WORK WANTED AND OFFERED __ —Third floor, 356, Oxford Street, W .l, or “ Stoneleigh.” O IL Winding.—I.O.G. Industries Ltd., 476. High Road, St. George’s Avenue, Weybridge. 62 Leytonstone, London. E .ll. Telephone, Leyton- LUORESCENT Lamps, 5ft., urgently required, any stone 3877. 2105 F quantity, retail prices paid. Collected London area. — Box 2100. c/o The Electrical Review. LECTRIC Motor Repairs. We specialise in the re "\/rERCURY (Quicksilver) wanted. Write for packing E winding and repair of fractional h.p. motors, induc tion, repulsion and capacitor for refrigerators, washing -L’T instructions. Gold, Silver and Platinum also pur machines, etc. Also D.C. Good deliveries at reasonable chased.—Collingridge & Co. Ltd., Riverside Works, River prices.—The Johnson Engineering Company, 319. Ken- side Road, Watford (Tel. 5963). 20 nington Road, London, S.E.ll. RELiance 1412/3. 89 "V/TOTOR Generator Set. Motor 440 volts, 3-phase, 50 cycles. Generator approx. 140 volts, 300 amps, NGINEERS, Precision. South England, seek manu shunt wound. Direct coupled on baseplate, starter and E facture of electrical, mechanical or domestic control gear. Give details and price.—Tungstone Products assemblies or components. Press tools, gauges, small Ltd.. Market Harborough. Leics. 2219 stampings, capstan turning, also Internal and External /'ANE 125-kBA Frequency Changer, 50/90 cycles, 400 v., Grinding. Write—Box 74, c/o The Electrical Review. " 3-phase, and one Double-ended Grinder with 10" ~|\/TACHINING Work, for Centre Lathes up to 64 in. wheels, single-phase, 240 volts.— Shimwell, Alexander & ^ centres and medium-sized milling (good grade work Co., 20, Bevis Marks, London, E.C.3. 2299 preferred).—The London Electric Firm. Croydon. Up EQ UIRED: Mica Electric Iron Elements; Toaster lands 4871. 56 R Elements: Snirals, nichrome wire; Cotton-covered ■VTEON Sign Glassware. Trade service, repairs, repump- Flexes: Brass, Copper and Steel Sheets, min. size 9" x 6" : ing, re-electroding, bell glasses and accessories. Alu. Strip. §" x 4": Machinery, new and used: Timber: Prompt service.—Neon Illumination Service, 26, Welford Glazing: Rubber Grommets: Asbestos: Switches: Iron Road, Leicester. 9482 Connectors, etc., etc. Offers to—British Diamix Ltd.. "l^XICKEL and Chrome Plating, large capacity output. Metrum Works. Beatty Street, N.W.l. Euston 5951. 44 Bulk quantity inquiries invited. Send full require SECONDHAND or reconditioned B.T.H. or equivalent ments and. if possible, samples to—I.E.I. (N.I.) Ltd., ^ Motors, one each 9. 74 and 2 h.p., T .E ., 4-hour rated, Lower Lodge Factory, Flax Street. Belfast, Northern slip-ring induction, 440 volts, 3-phase, 50 cycles, suitable Ireland. 82 for crane installation. Particulars and prices to—Box AINT and Metal Spraying. Large capacity available 2277, c/o The Electrical Review. P for efficient and prompt handling of all goods sent rpU BU LAR Heating. A quantity of secondhand 230-v. for treatment. Enquiries to Sales Dept., C.S. Ltd., Staffa -1- required. Thermostats if possible. State lengths and Works. Staffa Road, Leyton. E.10. 2237 prices to— The Mettoy Co. Ltd., Northampton (Phone 3520). 9396 /Q U A LIFIED Designer-Draughtsman undertakes electro* RGEN TLY wanted, 2-h.p., 400-v., 3-phase Geared ^ mechanical design, detail and arrangement drawing U Motor Unit, output shaft speed about 52 r.p.m. Good and tracing. Enquiries invited, strict confidence observed. price offered, immediate delivery.— Fraser & Borthwick —Box 9474, c/o The Electrical Review. Ltd .. 12a, College Square North, Belfast. 2272 ^TRANSFORMERS, 5 VA/5 kVA, coil winding, light \\T A N T E D , any quantity 6/.012 cotton-braided, 3-core T assembly, immediate deliveries.—The Transformer round Flex. Samples to—Box 627, Robertson & & Electrical Co. Ltd.. Eastern Road. London. E.17. 91 Scott. 73. Hanover Street, Edinburgh. 9498 "W INDING. All types of stators, rotors, armatures ANTED, D.C. and A.C. ball-bearing Motors. Full rewound and repaired. 1-phase and 3-phase, 4 to W details to—Britannia Manufacturing Co. Ltd., 22/26, 10 h.p. All work guaranteed.—Bright Bros. 50. Orford Britannia Walk, London, N.I. 29 Road. Walthamstow. 9411 \\^A N TED for export, steady supply of Domestic Re- A G E N C IE S frigerators. Ceiling and Table Fans, Cooking Stoves, Fires, Radio Sets, Motors, etc. Continuous orders guaran A Sales Organisation.—Vastly increased production teed. Large or small firms. Reply — Em pire Traders, facilities must soon precipitate a Buyers* Market.— W atling Road, Bishop Auckland, co. Durham. 9495 A complete sales story plus a scientifically organised "\A7ANTED number of Arc Welding Resistances, suit- sales force will then be at a premium. Specialised knowledge and experience with appropriate drive is ’ ▼ able for 200-amp. generator, 5 or 6 steps.—Box 2335, therefore required now if well considered preparations c/o The Electrical Review. and future operations are to be efficient.—The \\T ANTED number of S.P. and D.P. unmounted Knife Advertiser (M.I.A.M.A., etc.). now Advertising and Switches. 30, 60. 100 and 200 amps.— Fyfe, Wilson Sales Promotion Manager to a group of manufacturers, & Co. Ltd .. Bishop’s Stortford. 2333 offers his services as Director of Sales or equivalent to AA7ANTED number of Switchboards having voltmeters. any Company or Group prepared to provide suitable ammeters, D .P. switch. 100 or 200 amps, and scope and backing.—Alternatively, Advertiser would act regulator or parts. Send particulars of voltage, etc.— independently on quota/commission/cost basis for non- Fvfe. Wilson & Co. Ltd ., Bishop’s Stortford. 2334 competitor companies requiring similar sales organization. ANTED, number of Voltmeters, 0-80 (approx.) and —Box 9510. c/o The Electrical Review. ▼▼ Ammeters, 0-250 (approx.) for D.C. supply.—Fyfe. Wilson fe Co. Ltd ., Bishop’s Stortford. 2336 A GENCIES required by Rex Lighting & Radio Co. at 'VIT'ANTED. Rotary Converters, any size.—Universal. rt JJing Street. Hammersmith. W.6. Tel. Nos. Riverside 2283-4. New showrooms offer excellent oppor ▼ ▼ 221. City Road. London, E.C.l. 22 tunity to display first-class domestic, electrical and radio -h.p.. 230-v. A.C. or D.C. Motor.—Universal Electrical. products of every description. 2195 1 221. City Road. London. E.C.l. 25 -h.p.. 3-h.p. and 4-h.p., 400-volt, 3-phase, 50-cycle A GSNC?iiS r?f«uired for London. South of England, for /oTV f°H°w.in? : (1> Domestic electrical appliances: 5 Motors.—Britannia Manufacturing Co. Ltd.. 22/26, (2) Brass electrical accessories, switch plugs, etc.: (3) Con- Britannia Walk, London. N .I. 2321 2? * ",(*vertlsers have clientele with every wholesaler in or 74-h.p. Cage Type Motor, 400 volt, 3-ph., 50 cycles. 4?f?tl0ned- • Tmmediate turnover can be 6 950 r.p.m., no pulley, star delta starter, N.V. and guaranteed. Either commission or buying basi« Post 3 O.L. releases.—B. W. Gothard. Eaton Socon, St. Neots. war arraneements considered.—Box 64, c/o The F.W Hunts. 2265 trical Review. c aK r- August 30, 1946 E l e c t r ic a l R ev iew (Supplement) 71 A GENC3ES required. South of England, including the BUSINESSES FOR SALE AND WANTED T T area: (a) Cables: (b) Small Switchgear; (c) LECTRICAL Contractors’ business for sale, N.W. transformers. or any lines suitable for distribution for E London. £2,000 additional capital considered. i o T O r o business.— Box 40. c/o The Electrical Review. Accountant’s figures available. Contracts in hand. Write \ a i e(*. everywhere to sell direct to the retail —B'ox 9479, c/o The Electrical Review. cm a w Electrical Floor Standards. Pendants and bnaaes. Would consider permanent agencies.— Box 9421. PREMISES FOR SALE AND WANTED c/o The Electrical Review. TT R G EN T LY required. Factories in London and suburbs, TElectrical Wholesaler in process of developing ^ areas from 5.000 to 100,000 ft. Send pars, in con South London and Southern Counties seeks suitable fidence to—Leopold Farmer & Sons, Factory Agents, 46, agencies for Electrical Domestic Appliances, Electrical Gresham Street, E .C . (Tel. Monarch 3422). 2263 Accessories of all types. Switchgear. Electric Lamps, etc.— Box 9385, c/o The Electrical Review. MISCELL A NEOUS ]Vf ANUFACTURiatS’ Agent, returning Melbourne. S H O R T H A N D in one week. Test lesson, 3d.—Duttons desires Agencies in Speciality Electrical and/or ^ (E4). 92, Great Russell Street, W.C.l. 24 Mechanical Products, such as; short fluorescent light Q W EDEN seeks immediate import from England of the ing. patent fixings and tools, self-contained apparatus ^ following goods: Enamelled Copper Wire, Electric and equipment. Would consider, final assembly instal Cable, Dynamo Wire, Electrical Armatures Material, Radio lation, and service after sales.— Box 9502, c/o The Material. Plastic, Celluloid. Cellon, Tin. Copper, Lead. Electrical Review. Chemicals, etc. Payment in English bank. Also a British A/TANUFACTURERS’ Agents, covering the whole of Contact Man wanted for import and export. Send offers Great Britain and Colonies, are desirous of contact with samples to—A / B Concrete. R ekarne, Sweden. 2271 ing manufacturers with a view to sole selling rights (either commission or buying), post-war arrangements considered. COMPANY MEETINGS —Box 23. c/o The Electrical Review. ‘l/ T A N U F A C T U R E R S ’ Agents, with offices London and NEWTON BROTHERS (DERBY) South Coast, wish to hear of additional lines, including Cables and Domestic Appliances, for sale to corporations, wholesalers, retailers.— B o x 9376. c/oThe Electrical Review. Demand for Specialities TV/TANUFACTURING and Distributing Company, cover- ing the British Isles, and having important export fT^HE Seventeenth Annual General Meeting of Newton connections, are desirous of handling additional products -1- Brothers (Derby) Ltd. was held on the 22nd August suitable for the electrical, hardware and ironmongery at Derby. trade, preferably sole distributing rights. Substantial con Mr. P. C. Cooper-Parry, O.B.E., M.C., J.P., F.C.A., tracts will be placed for suitable lines. Reply— Box No. who presided, said: The report and accounts of the com T.183. Maurice Vernon Lim ited, 2, St. Andrew's H ill. pany for the year ended 31st March. 1946. disclose both Queen Victoria Street, E.C.4. 2268 a satisfactory trading result and a strengthened financial E P R E S E N T A T IV E S required all areas, with good con position. The reduction in the trading profit from £100,367 R nections electricians, garages, ironmongers, engineer to £59.558 was to be expected on the cancellation of many ing works, etc. Car essential. Reply, giving full details Government contracts following the end of hostilities. As of past selling experience, age, etc., to— Box 105, c/o is stated in the Directors' Report, the adverse effects of The Electrical Review. such cancellations, which became heavier as the year pro ceeded, will be more felt in the current year. The small BUSINESS OPPORTUNITIES increase in the net profit, after taxation, is due solely to NGINEER. M.I.E.E., with exceptional influential the reduction in the rate of E.P.T. and income tax. E wide connections and exclusive designs, desires to In recommending a special bonus of 74% additional to arrange an association with switchgear and instrument the normal dividend of 174% the directors have had regard firms to mutual advantage.— Box 9450, c/o The Electrical to the small proportion of net profits which has been distri Review. buted in dividends over the past five years. During the year OCEMCO Ltd.. Fluorescent Lighting Specialists, wish to considerable progress has been made in bringing our plant ^ contact manufacturers of electrical equipment and and machinery up to the latest standards, and £16.017 has accessories, including “ Novelty ” and “ Improved ” been spent on new plant. This re-equipment is continuing. appliances. Domestic fluorescent fittings and components of particular interest. When possible complete output will Current Prospects be taken, and full co-operation given in exchange for sole Concerning current trading and future prospects, trading distribution rights. Replies will be treated with strictest is difficult at the moment. The specialised electrical equip confidence.—Man. Director, Scemco Ltd ., Scemco House. ment which forms a large proportion of our production, 6/7, Soho Street. London, W .l. 2243 and which was supplied in such large quantities to the PARTNERSHIPS Government during the war, is generally of the type re quired for post-war needs, though on a much reduced scale. NGINEER, resident abroad with established commer Our customers—both Government and commercial—for E cial connection overseas, would like to take substan this class of equipment are in process of developing new tial financial interest in established firm in Great Britain designs needing from us in turn new patterns and types manufacturing Switchgear and Control Gear. Can guarantee which our technical staff have to develop through the regular monthly contracts for export. Cash against ship experimental and prototype stages before quantity manu ping documents.— Box 9381, c/o The Electrical Review. facture can be reached. PATENT NOTICES Following on the termination of hostilities we initiated— T is desired to secure the full commercial development under expert guidance—a planned advertising campaign I in the United Kingdom of British Patent No. 508027, for our specialities which is resulting in a gratifying flow which relates to Heat Treatment by Electric Induction, of enquiries from both home and abroad, but the con either by way of the grant of licences or otherwise on tinuing deterioration of the delivery position of the basic terms acceptable to the patentee. Interested parties de essentials of our manufactures such as 6teel. electrical siring copies of the patent specifications should apply to— quality sheet stampings, ball bearings and the special Stevens. Langner, Parry & Rollinson. 5 to 9. Quality grades of insulated wire, makes the quoting of reliable Court. London, W.C.2. . 2296 and reasonable delivery dates almost an impossibility. T is desired to secure the full commercial development Last year I spoke highly of the excellent services of I in the United Kingdom of British Patent No. 510648, your Managing Director. Mr. F. V. Pipe, your Technical which relates to Electrical Resistance Welding, either by Director. Mr. F. Newton, and the whole of the staff and way of the grant of licences or otherwise on terms accept employees throughout the war years. My commendations able to the patentee. Interested parties desiring copies of then are again repeated to-day, but with added tributes the patent specifications should apply to—S te v^s^ a n gn e r, to the manner in which all concerned have worked in the Parry & Rollinson. 5 to 9 Quality Ct., Londpn, W.C.2. 229^ past months of continual and difficult change. T is desired to secure the full commercial development I now formally move the adoption of the report and I in the United Kingdom of British Patent No. 522508. accounts. which relates to an Electric Reciprocating Motor for W arn ing Signals, either by way of the grant of licences or other Mr. Frederick Newton. M .I.E .E .. M.I.Mech.E.. seconded wise on terms acceptable to the patentee. interested the motion, Mr. F. V. Pipe, A.M .I.E.E. (Managing Direc nartips desiring copies of the patent specifications should tor) supported it. and it was carried unanimously. apply to—Stevens, Langner, Parry & EoUinson, 5 to 9. Mr. H . E . Midgley, M. A. (Cantab.). M .Inst.C.E.. Onaiitv Cnnrt. London, W .C.2. ¿¿»0 M .I.E .E.. M.I.M ech.E.. was re-elected a director, and S S m Aeents.—A. E. Hill. Chartered Patent Agent. Messrs. Watson Sowter & Co. were re-appointed auditors. P 07 C h a n c e r y Lane, London. W.C.2. Tele. ■ Chancery The proceedings closed with a cordial vote of thanks to the chairman, directors, staff and employees. 2306 8444.“ ' 65 72 (Supplement) E l e c t r ic a l R e v ie w August 30, 1946 EDUCATIONAL NOTICES NORTHAMPTON POLYTECHNIC, LONDON, EXT Session 1946-7 A Course of Lectures on X-Ray Technology will be given on Wednesdays, at 7 p.m., commencing on Wednes day, October 2nd. 1946. The course will provide a com prehensive survey of the fundamentals of X-ray Technology suitable for those engaged in the installation, testing and maintenance of X-ray equipment. Laboratory work by arrangement on one additional evening per week. Enrolment week : Monday. September 16th. to Friday. September 20th, 1946, inclusive. 6.30-9.30 p.m. Further particulars may be obtained from the Northampton Poly- technic. St. John Street. E.C.l.______2311 T^NGDsEERING Careers and Qualifications. Both Government and industry have announced and emphasised that young men with technical knowledge and Qualifications must receive every chance of rising to the highest posts within their capacity in post war engineering and allied industry. Write to-day for “ The Engineer’s Guide to Success ” — 200 courses— free — which gives particulars of the first-class training supplied by the T.I.G.B1. for the A.M.I.E.E.. A.M.Inst.C.E.. A.M.I.Mech.E., A.F.R.Ae.S., A.M.I.P.E.. B.Sc.(Eng-). C. & G., etc.. examinations in which T.I.G.B. home-study students have gained 44 first places and over 1,000 passes. The Guide covers careers in all branches. Electrical. Mechanical. Radio. Aeronautical, etc.—The Technological Institute of Great Britain, 35, Temple Bar House. London, E.C.4. 77 T ATEST A.M.I.E.E. Results. In the recent examina- tions held by the Institution of Electrical Engineers 477 candidates sat who had taken B.I.E.T. courses. Of these 457 were successful in passing the examinations. We believe this record of 457 successes out of 477 entrants has never before been approached by any oral or correspondence tutorial organisation, and indicates the very high efficiency of the modern system of technical training which we have 'D irect-O -life ' laid down. The B.I.E.T. tutorial organisation is waiting to assist you either with a short specialist course or com plete training for a recognised examination. WTe have C.M.CHUR CHOUSE LTD.. available a large full-time staff of instructors, while the efficiency of our extensive organisation is a byword among CLARENDON WORKS. CLARENDON CBOSS, LONDON, W .ll engineers. We guarantee— “ No pass— no fee.” May we send a copy of “ Engineering Opportunities ” ? Containing Phone: PARK 8617-8. Grams: “LITEFITINS N O TARCH ” a great deal of useful advice and detailed information on over 200 home-study courses and examinations, this hand book is of very real value to the ambitious engineer. Our highly informative handbook will be sent free and without obligation on request.— British Institute of Engineering ELECTRICAL REVIEW’S- Technology (established 1927—over 200.000 students). 12. Shakespeare House. 17. 18 & 19. Stratford Place. INSTRUCTION CHART Oxford Street. London, W .l. 33 FOR DEALING WITH APPARENT X>LASTICS offers particularly good prospects to ex- -A. perienced Engineers with a sound knowledge of DEATH FROM ELECTRIC Plastics Technology. Authoritative home-study courses are now available in General Plastics and specialised branches of the science. F u ll details of these courses and the SHOCK prospects in the rapidly expanding Plastics industry will In tccordanc* wleh H.O. ELECTRICITY REGULATION 29 be found in our Handbook ” Opportunities in Plastics ”— Dorset House sent Free on request.—British Institute of Plastics ELECTRICAL REVIEW Stamford St. S.E.I Technology (Dept. 301), 17. Stratford Place. London. W .l. 1971 IP tcrve d in i TIME.. Their high precision standard of manu facture has made TEMCO the most prized of all electric clocks. Products of TELEPHONE MANUFACTURING CO., LTD. T h e 5 5 * " - Ä T M arketed by T.M.C.-HARWELL (SALES) LTD., 233, SHAFTESBURY AVENUE, LONDON, W.C 2 Telephone : T E M pie Bar 0055. August 30, 1946 E l e c t r ic a l R e v iew (Supplement) 7.3 THE MORE YOU DO THE FEWER YOU MAKE Which isn't quite so absurd as it sounds if you consider the illus trations. Here is a case where a manufacturer, by changing from drop stampings to close limit forgings, was able to reduce his machining operations from seven to three and obtain other worthwhile advantages as well. The process is full of opportunities for those who make use of steel forgings weighing up to twelve pounds. CLOSE LIMIT FORGINGS m \ n GUEST, KEEN & NETTLEFOLDS, LTD., Atlas Works, Darlaston, Staffs. DETERMINES THE PERFORMANCE ÄRLEY ^ 4 q e * A C C U R A C Y * UNIFORMITY * RELIABILITY *SERVICE LITHOLITE INSULATORS & * COMPETITIVE PRICES ST. ALBANS MOULDINGS LTD EXPRESS DELIVERIES DAILY IN LONDON AREA TheVARLEY MAGNET COMPANY WATFORD BLOOMFIELD ROAD ■PHONE: WATFORD 4494 W O o Z ffil (6 ,nes)W00LWICH, S.E .l 8 7 4 (.Supplement) E l e c t r ic a l R e v ie w August 30, 1946 KEEP THE WAGONS MOVING 1 \ Have the wagons loaded quickly Aim at unloading wagons as soon as they arrive Avoid leaving wagons half unloaded overnight Do not use wagons as warehouses HELP THE RAILWAYS TO HELP YOU GWR ★ LMS * LNER ★ SR WIRE WIRE GRIDS GUARDS RACKS HANDLES FRAMES BASKETS BALSALL HEATH WIREWORKS 'W iring. B’ham’ BIRMINGHAM 12 Caithorpe 1733 A.C. or D.C. UNIVERSAL FRACTIONAL H.P. MOTORS for every purpose “ THERMOLECTRICS LTD.” Delivery of urgent priority orders as ELECTRIC HEATING ^ - follows :— PADS A N D 1/t5Oth—1/30th h.p. 6-7 weeks] 1/20th—1/8th h.p. 7-8 weeks b l a n k e t s ^ ^ T v ; £ \ 6-250 volts FRACTIONAL EXPERT H.P. MOTORS Advice and expert Ltd.. Rookery Way REPAIRS HENDON. N.W.9 consultation COLINDALE 8022-3 SERVICE (ALL MAKES) free CHAPEL WORKS, CHURCH ST., HAMPTON-ON-THAMES August 30, 1946 E l e c t r ic a l R e v ie w {Supplement) 75 M A.P. Type Approved To specification D.C.D. W . T . 1 5 4 8 More than meets ELIMINATE VIBRATION AND BANISH SHOCK “ Equiflex ” Mountings, the eye... APPLICATIONS : There are which proved so valu able in war work, have ranges of Standard T T is the unseen factors which make now been released. “ Equiflex ” Mountings for suspension and mounting of Clifton Domestic Appliances so FEATURES : Flexible in equipment, instruments, all d ire ctio n s at an equal electrical apparatus, motors, dependable. Quality of material. deflection. Can be etc., where elimination of vi Care in assembly. Soundness in loaded on any side, thus bration and shock is required. eliminating vibration in design. The same high standard " Equiflex ” Metal Mountings VERTICAL. HORI of workmanship is maintained operate on a new Dampdd ZONTAL and LONGI Spring System. down to the smallest hidden detail. TUDINAL planes. Constant performance. Rubber “ Equiflex ” types Unaffected by tempera are now available giving ture changes. similar characteristics. CLIFTON Write for particulars and send us details of your requirements Ą n a J t Ą L A. W ELLS & CO. LTD. LYTHAM LANCS (Dept. F.), Stirling Road, Walthamstow, E.17 Phone : Larkswood 2691 tfectrical Iqiiipment REGISTERED ■ B W TRADE-MARK FOR MECHANICAL tENTTH HANDLING PLANT PHASE-SHIFTING TRANSFORMER switches 3 -P H A S E 600 V A Contact ^Collectors Other COeco products Contact Collector Columns, Limit Switches, Overhead Collector Equipment, Winch Limiting Mechanisms for Skip Hoists, Cranes, and Mechanical Handling Plants. Particulars mechanisms on request The ZENITH ELECTRIC CO. Ltd. THE DALYTE ELECTRICAL CO. LTD. Sole Makers of the well-known “ Zenith ” Electrical Products Zenith Works, W EST R O W , N. KENSINGTON, LONDON, W.IO Villier8 Road, Willesden Green, London, N.W.2 Telephone : LADBROKE 3066-7 Phone : Grams : W ILIesden 4087-8-9 ______“ Voltaohm, Phone, London ” 76 (Supplement) E l e c t r ic a l R e v ie w August 30, 1946 DO YOU WANT HELP WITH YOUR DRAWING OFFICE WORK? D E SIG N and Development of Electrical and Mechanical Equipment, DRAWINGS and GENERAL DRAWING OFFICE WORK produced from rough sketches, basic information, to your requirements. Wide experience of Manufacturers’ Drawing Office systems, special provision made to ensure close co-operation. You can get the assistance of an efficient D R A W IN G O FFICE by writing to or telephoning— DESIGNS & INSTALLATIONS LTD. 167 HIGH STREET, GUILDFORD, SURREY. Telephone: Guildford 3919 CONTACTU M SWITCHES, SWITCHPLUGS, SOCKETS, PLUGS CEILING SWITCHES, BELL PUSHES, ETC. are in great demand, but still in short supply owing to the difficulty of obtaining certain raw materials CONTACTUM LTD. Victoria Works. Edgware Road GLAdstone 6366-7 CRICKLEWOOD LONDON, N W 2 AUTOMATIC New cleaners are now VOLTAGE, A.C. FEEDER ready complete with attachments. Enquiries A N D from Corporations, Supply SPEED OTHER Companies and registered electrical contractors REGULATORS invited. VACUUMS LIMITED COX=WALKERS LTD. ALDRIDGE ROAD, BIRMINGHAM 22B COXPAR DARLINGTON THE PYROBRAZE 2 The Universal Soldering and Brazing Machine which settles EV ER Y Soldering and most Brazing Problems. For BRAZIN G up to 16 gauge THE ACRU ELECTRIC TOOL MFG. CO. LTD. 123 Hyde Road Ardwick, MANCHESTER 12 Tel. 4284 August 30, |94fi Electrical Rf.view ( Supplement) 7 7 * t y o t c C a s t , $ £ £ U rfu/ ¿fay u^e f o r IDENTIFICATION ELECTRODE BOILERS • Transparent or Coloured, in 72-yard rolls, many widths. M 30 K.W . Boiler supplying steam for three pressing machines. Official Distributors : G O R D O N & G O TC H LTD. Electrode boilers are the cleanest and most con Dept. E.R.2, venient sources of heat available. They need no 75/79 Farringdon St., London, E.C.4 boiler house, no chimney, no fuel store. There is no difficulty with fuel supplies and where supply companies have favourable rates, “ B. & A.” boilers show great over-all economy. FOR STEAM SUPPLY FOR HEATING & HOT WATER BASTIAN & ALLEN LTD.. 11 BEDFORD SQUARE. W.C.1 Northern Office: 62 Robertson Street, Glasgow, C.2 PANEL TABLE LAMP SHEET METAL BASE Sprayed Green GLASS PANELS In Old Gold Colour Complete with Flex & Holder Listed Price 21/- (Plus P. Tax) For Discounts, apply : General Lighting Equipment Co. Ltd. 99 Great Eastern Street, E.C.2 78 (Supplement) E l e c t r ic a l R ev ie w August 30, 1946 Index to A d v e rtis e rs PAGE Acru Electric Tool Mfg. Co. Ltd ...... 76 Air Ducts Ltd ...... 42 Appelbe, J. F., & Co. Ltd ...... 92 Ashdowns Ltd ...... 100 Ashley Accessories Ltd.. 32 Associated Pumps Ltd ...... 90 Austinlite Ltd ...... 94 Bakelite Ltd ...... 24 Barber & Colman Ltd ...... 100 Barries Electrical Agencies Ltd ...... 34 Bastian & Allen Ltd ...... 77 Benjamin Electric Ltd ...... 16 Berry’s Electric L td ...... 54 Biddle, F. H., Ltd ...... 88 B lack & Decker L td ...... 85 Brentford Transformers Ltd ...... 48 Britannia Batteries Ltd ...... 12 British General Mfg. Co. (1941) Ltd ...... 48 British Insulated Callender’s Cables Ltd ...... 9 British Klockner Switchgear Ltd ...... 104 British Railways...... 74 British Thomson-Houston Co. Ltd ...... 5 British Trane Co. Ltd ...... 53 Brook Motors Ltd ...... 13 Burco L td ...... 33 Burgess Mouldings Ltd ...... 91 Bushing Co. Ltd ...... 86 Cable Makers’ Association ...... 52 Cable Strippers Ltd ...... 34 Carter, H. W., & James Ltd ...... 74 APPLICABLE TO ANY SYSTEM OF BUILDING Chloride Electrical Storage Co. Ltd ...... 101 O c to p u s e n su re s Churchouse, C. M., Ltd ...... 72 1. Speedier and more efficient installation. City Electrical Co ...... 80 2. Considerable economy in labour & installation costs. Clifton Aircraft Ltd ...... 75 Cohen, George, Sons & Co. Ltd ...... 79 O c to p u s has been officially approved by governing Contactum Ltd ...... 76 authorities. Cork Manufacturing Co. Ltd ...... Cover iv Write for illustrated brochure to Cox-Walkers Ltd ...... 76 PROVED AND PRODUCING PROPERTIES LIMITED, Crabtree, J. A., & Co. Ltd ...... 39 5, Cheapside, London, E.C.2, or Cressall Manufacturing Co. Ltd ...... 32 HARTLEY & COMPANY, 57, Victoria St., London, S.W.I. Crompton Parkinson Ltd ...... 35, 50 & 95 Sole Agents for Northern Ireland : JAMES McCREEDY, LTD., Cryselco Ltd ...... 2 Private Road, Cregagh, Belfast. Dalyte Electrical Co. Ltd ...... 75 Davis & Timmins Ltd ...... 104 Designs & Installations Ltd ...... 76 Desoutter Bros. Ltd ...... 19 Dixon, R. G., & Co. Ltd ...... 33 Donovan Electrical Co. Ltd ...... 88 & 104 D ow sing Co. (Electrical M anufacturers) L td ...... 98 Dryden, Thomas, & Sons Ltd ...... 98 Duratube & W ire L td ...... 12 Edison Swan Electric Co. Ltd Cover i Elcord ia L td ...... 86 Electric Construction Co. Ltd ...... 99 Electric Depot Ltd ...... 96 Electric Elements Co ...... 90 Electro Dynamic Construction Co. Ltd ...... 81 Electroplant Co ...... 77 Ellison, George, Ltd ...... 18 Empire Rubber Co ...... 20 Engines & Electrics Ltd ...... 82 English Electric Co. Ltd ...... 41 Erskine Heap & Co. Ltd ...... 25 you’re ... Ferguson, Pailin Ltd ...... 37 market, just con Ferranti Ltd ...... 1 1 tact me. I can Foster Transformers & Switchgear Ltd ...... 17 promise it will Fractional H.P. Motors Ltd ...... 74 pay you Fuller Electrical & Manufacturing Co. Ltd ...... 51 Components and Assem General Electric Co. Ltd ...... 58 & 84 blies in D rop Forgings. General Lighting Equipment Co. Ltd ...... 77 Hot Brass Stampings. Gent & Co. Ltd ...... 45 Cold Stam pings and Press- G ordon & Gotch L td ...... 77 w o r k . G relco L td ...... 100 Springs and W irew ork. Guest, Keen & Nettlefolds Ltd ...... 73 Special Tools & W renches. Auto, Capstan and General Hackbridge Electric Construction C o. L td ...... 89 Machine W ork. Harborough Rubber Co. Ltd ...... 30 Bolts, Nuts, Screws, Hart Accumulator Co. Ltd ...... 24 W ashers, etc. gay*qgjgfiev* Hassett & Harper Ltd ...... 82 Heayberd, F. C., & Co. Ltd ...... 57 Heatrae Ltd ...... 1 Hedin L td ...... 100 Henley’s, W. T., Telegraph Works Co. Ltd ...... 83 Hewittic Electric Co. Ltd ...... 36 Hildick & Hildick ...... J»8 H oover L td ...... ••• ■ • •...... -JO Hotpoint Electric Appliance Co. Ltd ...... TOUR REQUIREMENTS TO BLUE -PR/NT OR PATTERN Tgranic Electric Co. Ltd ...... 14 {Continued on page 80) S. & U . August 30, 1946 E l e c t r ic a l R e v ie w (Supplement) 79 5. Co bo atoap toitl) Jrctkles in tlje face... Cafee Jjare’s bloob anb mix it tmtfj stoallotosi’ epes anb anoint tfjce tfjeretoitfj, but it must be bone aneto eberp pear. (Quoted from “A Leechbook of the 15th Century”) TO IMPROVE PRODUCTION. . . GEORGE COHEX’S for M O D E R * SECO.\DHA*'D P L A N T & MACHINERY Generating Sets, Motors, Sicitchgear, Transformers, Diesel Engines, Boilers, Pumps, Air Compressors, Cranes, Locomotives, Power Presses and Sheet Metal Working Machinery, Track and Wagons, Tanks, Steel Sections, Tubes and Fittings and virtually every kind of modern Secondhand Works' Equipment. GEORGE COHEN, SONS & CO. LTD Established 1834. vV » 'd Lane, London, W . I2 q^^ OF THE IPhone: Shepherds Bush 1070). and Stanningley. Near Leeds (Phone: Puds ey 2241). p P ^ And at Birmingham IPhone: Cen. 2751), Newcastle-on-Tyne (Phone: 23313), Sheffield (Phone: M I AttercJifie 42L33). Manchester (Phone : Pendleton 1376/8), Glasgow (Phone : Langside 3041/2)* P D n I ID cwinsea (Phone : Swansea 2168/9), Southampton (Phone : Southampton 3598/9), Bath (Phone : c* ccHtfl?.» Bath 7627/8), Belfast (Phone Bellas: 57427). ~ 463 T7 3 F 80 (Supplement) E l e c t r ic a l R ev ie w August 30, 1946 Index to Advertisers (Continuedfrom page 78) page Insular Electric Lamp Works Ltd ...... 26 Insulators Ltd ...... 43 Jackson Electric Stove Co. Ltd ...... 30 FRACTIONAL HORSEPOWER Johnson, Matthey & Co. Ltd ...... 57 Johnson & Phillips Ltd ...... 23 •-V- MOTORS Jones. Samuel. & Co. Ltd ...... 28 Kautex Plastics Ltd ...... 45 Legg (Industries) Ltd ...... Cover iii Linolite Ltd ...... 101 Litholite Insulators & St. Albans Mouldings Ltd 73 Londex L td ...... 104 London Electric Firm ...... 94 London Transformer Products Ltd ...... 28 Manganese Bronze & Brass Co. Ltd ...... 10 Martindale Electric Co. Ltd ...... 55 TILUHG-STEVBC Maul & Murphy Ltd ...... 94 FABRICATED McClure, David ...... 96 I HJ>. (E.V.) M .C.L. & Repetition Ltd ...... 1 MOTOR Mek-Elek Engineering Ltd ...... 98 Metafiltration Co. Ltd ...... 92 PROT. PAT. Metallic Seamless Tube Co. Ltd ...... 8 INCREASING DEMAND ______(Xo, 6434 46) Metropolitan-Vickers Electrical Co. Ltd ...... 47 & 97 Micramatic Electrical Instrument Co. Ltd ...... 82 and the present man-power problem are respon Midland Electric Manufacturing Co. Ltd ...... 31 sible for some delay in delivery of these efficient Morgan, Albert, & Co ...... 82 M oss B ros...... 81 power units. But every endeavour is being made Normand Electrical Co. Ltd ...... 87 to speed up manufacture and our customers can Parsons, C. A., & Co. Ltd ...... 3 Perry Barr Metal Co. Ltd. .*...... 46 be assured that prompt delivery will be resumed Pitman. Sir Isaac, & Sons Ltd ...... 26 at the earliest possible moment. Poles L td ...... 40 Premier Electric Heaters Ltd ...... 6 Proved & Producing Properties Ltd ...... 78 Pultra L td ...... 34 TIL LING-STEVENS Pye L td ...... 28 Record Electrical Co. Ltd ...... 30 LIMITED Redfem Stevens Ltd ...... 78 Rediffusion Ltd ...... 44 ELECTRICAL AND MECHANICAL Reyrolle, A ., & C o . L td ...... 27 Rheostatic Co. Ltd ...... 98 ENGINEERS Rhodes, Brydon & Youatt Ltd ...... 92 LONDON - MAIDSTONE - HUDDERSFIELD Richardsons Westgarth-Brown Boveri Ltd ...... 103 Rockman Engineering Co. Ltd ...... 102 Ross Courtney & Co. Ltd ...... 1 Rotherham & Sons Ltd ...... 93 Ruberoid Co. Ltd ...... 26 Runbaken Electrical Products...... 104 STEWART TRANSFORMERS LTD. Sangamo Weston Ltd ...... 54 Santon L td ...... 86 Saxonia Electrical Wire Co. Ltd ...... 102 We manufacture Scott. Hugh J., & Co. (Belfast) Ltd ...... 22 H.T. & LIGHTING TRANSFORMERS Siemens Bros. & Co. Ltd ...... 15 Simmonds & Stokes Ltd ...... 103 & CHOKES FOR ALL PURPOSES UP Smith’s English Clocks Ltd ...... 93 Standard Telephones & Cables Ltd ...... 38 TO 15 K.V.A. Stewart Transform ers L td ...... 80 Stirling Boiler Co. Ltd ...... Cover ii Stream-Line Filters Ltd ...... 42 CHOKES FOR FLUORESCENT Sturtevant Engineering Co. Ltd ...... 7 Sun Electrical Co. Ltd ...... 94 LIGHTING EQUIPMENT Taylor & Petters Ltd ...... Cover iii Tempered Spring C o . L td ...... 46 Terry, Herbert, & Sons Ltd ...... 29 1037 F I N C H L E Y R O A D , N .W .II Thermolectrics Ltd ...... 74 Phone : Speedwell 3000 Thew, Edw ard H , L td ...... 102 Thompson, W. & J. R., (Woodturners) Ltd ...... 28 Tiiling-Stevens Ltd ...... 80 T.M.C.-Harwell (Sales) Ltd ...... 72 Toolmakers & Design (Coventry) Ltd ...... 90 Trustful Products Ltd ...... 96 Tu fn o l L td ...... 22 Tullis Russell & Co. Ltd ...... 4 Vactite Wire Co. Ltd ...... 32 Vacuums Ltd ...... 76 Varley Magnet Co ...... 73 Vent-Axia Ltd ...... 24 Veritys Ltd ...... 21 & 55 Walter, D., & Co. Ltd ...... 96 Ward & Goldstone Ltd ...... 56 Wardle Engineering Co. Ltd ...... Cover in Weir Electrical Instrument Co. Ltd ...... 81 Wells, A., & Co. Ltd ...... - 7?_ West Insulating Co. Ltd ...... Cover in Westminster Engineering Co. Ltd ...... 1 Wheeler, F. H., & Co. Ltd ...... JJJ- Woden Transformer Co. Ltd ...... - • • ■ ■ - ...... ™ Yorkshire Switchgear & Engineering Co. Ltd ...... w EMEHALD STREET. LONDON. W . C. L TELEPHONE HOL30RN 97Ï2. Zenith Electric Co. Ltd ...... 75 August 30, 1946 E l e c t r ic a l R e v ie w {Supplement) 81 High Frequency Induction fluorescent Motor Alternator LIGHTING UNITS COMPLETE WITH TUBES EARLY DELIVERY Send for Trade List 8 0 W*®"- N o 7 7 — - WORD*' MOSS BROS. 53 GOODGE STREET TOTTENHAM COURT RD., LONDON, W.l are not enough ! Telephone : MUSeum 5385 To give a clear idea of our recent developments in electrical plant we would have to send you fully illustrated WEIR and comprehensive bToch ures on the PORTABLE subject—and this we will be delighted to d o ! INSTRUMENTS Ammeters and Volt The exacting requirements of active meters. Moving-iron or service have provided ample scope for Moving-coil. Single, dual our research departments and special or triple range. ised problems for our designers. The resultant increased experience and AVAILABLE FOR EARLY efficiency of E.D.C.C. is now at your DELIVERY disposal and if we can assist you with your power problems . . . but we 4in. SQUARE PATTERN. Flush or Projecting, have said : eighty words are not really BAKELITE CASES, Moving-iron or Moving-coil. enough . . . 3*in. FLUSH PATTERN. Moving-iron or Moving- coil BAKELITE CASES. THE ELECTRO DYNAMIC WEIR ELECTRICAL IN S T R U M E N T CO. LTD . CONSTRUCTION C? L™ BRADFORD-ON-AVON, W ILfS. T e l e p h o n : Brad ford-on-Avon 2 3 7 8 ST MARY CRAY, KENT AND AT BRIDGWATER, SOMERSET. ENGLAND. RP. 1111 82 (Supplement) E l e c t r ic a l R e v ie w August 30, 1946 ATLAS PRODUCTION SPOT WELDER h e r e ’s Li g h t on the dark subject of FOR IRON, STEEL, BRASS A N D COPPER VEUVEMÇ... 200-250 VOLTS A .C . Larger premises have boosted Single-Phase our production . . . we now g iv e prom pt delivery of our 2 KVA Type H900 Flush Ceiling Fitting CAPACITY Fluorescent Lighting. Designed to give the widest range of 2 x .002" M IN . usefulness, well constructed in the finest materials and finished in stove baked Cream 2x22 GAUGE MAX. Enamel, it comes to you complete with lampholders, suppressor gear, starter, etc ...... in fact, ready to IN MILD STEEL plug in. Industrial Type Fittings also supplied. This machine has been designed for the W rite to-day for further details and prices. repetition production of Small Components in the Lamp and Valve Industry and its use on small sheet metal articles of a semi luxury nature such as Lamp Shades, Powder Compacts, Lighters, etc., where it eliminates brazing and soldering, has proved a source 0 of considerable production increase. The machine is bench mounted and is complete with all electrical gear. Operation is by foot pedal. PRICE ON APPLICATION. EARLY DELIVERY MICRAMATIG ELECTRICAL INSTRUMENT CO. LTD. ENGINES & ELECTRICS LTD. MEICO WORKS : CONGLETON : CHESHIRE 22-26 STAFFORD PLACE, LONDON, S.W.1 TELEPHONE: CONGLETON 607. 571 & 572 PATENT ELECTRIC HOIST BLOCKS W e specialise in difficulties and are most contented when MULTIPLY YOUR MAN POWER tackling a job that other people have dismissed as impos Better Product—Lower Cost—Versatility sible. The next time you have a pressing, spinning or Overload Cut-off, Load Indicator and Recording Devices stamping problem ... a really tricky one . .. may we help? available. Ball bearings throughout, Gears running in oil, Electric brake, Overwind cut-off, Quiet running. Light in Remember ... we are specialists in every type of pressing, weight, Pull Cord, Thumb Switch, Push Button or Remote Control, Push Geared or Electric Travelling, adjustable to stamping, spinning, sheet metal, capstan and automatic any girder flange. All Insulate Current Conveying Systems, Minimum Maintenance-Maximum Reliability. work for the LIGHT ENGINEERING INDUSTRIES. W rite for fuller particulars ALBERT MORGAN & CO. OnHassell M O S . MAP and ADMIRALTY Harper Ll*t* I ~ Ltd 50 WILKIN STREET, N.W.5 TELEPHONE : C U L . 114 7 REGENT PLACE • BIR.M INGHAM • I RP.709B. August 30, 1946 Electrical Review ( Supplement) 83 j o i n t i n g These boxes have solved the problem of term inating overhead low tension lines arranged in vertical formation. Jointing is easy, the conductors loop direct to the conductor fittings, and the box itself fits snugly alongside the pole. Available for multicore cables up to 660 volts working pres sure. Full details are given in catalogue U.E.ll. H E N LE V ELECTRICAL DISTRIBUTION EQUIPMENT EN LEYS TELEGRAPH WORKS _ c o . LTD. H A T T O N CARDEN L O N D O N . E • C • I 84 (Supplement) E l e c t r ic a l R e v ie w August 30, 1946 TRANSFORMERS t a iw when f fe B& D a up to liter mate trt to a Booth pov itajed edj Cut curves: hr'-¡tii ?odsthatsai Oitatnatoi POK 'Phone SERYIC Advertisement of The General Electric Co. Ltd., Magnet House, Kingsway, London, W .C.2 Y August 30, 1946 E l e c t r i c a l R e v i e w (Supplement) 85 C u r v e s a f s p e e d Even when following unusual curves or shapes the B & D ■ LE C T R O -SH E A R ’ will quickly cut up to 16 gauge In steel, and more in softer materials. The ‘ Lectro-Shear ’ will work to a minimum radius of W ' and its smooth powerful action leaves a clean un damaged edge to the metal. Cut curves at speed with the B & D * Lectro- Shear ’— It Is one of the wide range of B & D Tools that save time, labourand operator fatigue. Obtainable only from B & D Distributors. PORTABLE ELECTRIC TOOLS B L A C K & DECKER LTD HARMONDSWORTH MIDDX ’Phone: West Drayton 2681/6 ’Grams: ‘ Blacdeclc,’ West Drayton SERVICE STATIONS : LONDON, BIRMINGHAM, BRISTOL GLASGOW, LEEDS, MANCHESTER, NOTTINGHAM S m t t 'i 8 6 ( Supplement) E l e c t r i c a l R e v i e w August 3 0, 1946 Two or three arm lamp brackets, can be supplied at an extra cost Standard rating— 60, 80 and 120 V/A max. Volts 440, min. V o lt s 12 Made by THE CONCORDIA TRANSFORMER CO. a subsidiary of THE CONCORDIA ELECTRIC SAFETY LAMP CO. LTD. This low-voltage unit of maximum efficiency and safety incorporates Telephone : a double-wound trans W A T erloo former (to B.S.S. 794) 5502/3 and double-pole switch with 4 fuses (2HT and 2LT) ail mounted on a readily removable Gas Oven type door, the opening of which breaks both circuits. The HT Terminals have safety shields. Two spare fuses for each circuit are mounted in the case. SOLE SALES AGENTS : A.I.D. APPROVED EKORDIA UNITED, Telegrams : “ Elcordia, Lamb, London " 225 Westminster Bridge Rd., London, S.E.I 1 METER + 1 ROTARY SWITCH = 6 METERS TUBES IN LAMINATED FABRIC OR PAPER BASE THE BUSHING CO. LTD. Rotary Switches up to 660v: 18 0 a: 6 positions HEBBURN-ON-TYNE SANTON Ld NEWPORT, Mon.Tel 7I2II 30, 1946 August E l e c t r i c a l R e v i e w (Supplement) 87 O M A L L E R - lighter - more versatile than ever - with a choice of 100 different speeds between 90 r.p.m. and 5 revs, per hour; three- phase, D.C., and Universal motors ; all without change n UQdOnD n E c o of dimensions. I/8 h.p. at the final shaft GEARED mOTOR at 26 to 90 r.p.m., and 25 lbs. ft. at lower speeds. Oil- V immersed silent spur gears ; oil-sealed gear box ; ball bearing famous NECOmotor. Unfortunately delivery takes time, but it’s worth a small delay. TRADE MARK NORMAND ELECTRICAL COMPANY LTD. North Street, Clapham Common, London, S.W.4 Telephone: MACaulay 3211-4 88 {Supplement) E l e c t r i c a l R e v i e w August 30, 1946 Selecting the correct equipment for the job is the most important factor in secur ing efficient and trouble free ventilation. Airspin Fans are designed by Ventilating Engineers and are available in a range of sizes to meet a wide variety of require ments. Full details are given in our new list. Send for your copy now. C U h S f t u i V E N T I L A T I N G FANS 52 CLERKENWELL CLOSE F.H.BIDDLE LIMITED LONDON E.C.I TEL: CLERKENWELL 6345 TELEGRAMSEFB/DDLE SM/TH LONDON. A.C. Direct-Switching Contactor Starters D O N O V A N S can rightly claim to be Starter Specialists. Many years' experience in developing Starters for every requirement has gone into the production of these types. Four sizes for iThese approved and certified direct-switching all types of A.C. ConduitsC o m and Fittings are consistently motors up to 30 h.p. 550 volt. reliabler e lia b le underthe u m ost arduouscondltions of service. You can specify none better. HILDICK & HILDICK DONOVANS WALSALL TUBE WORKS THE DONOVAN ELECTRICAL C0 LT® BIRMINGHAM. 9 ELECTRICAL ENGINEERS AND STOCKHOLDERS Phone-STEcw*oao 22T7 (REX.) Gbants -DONOVAN,BibmimQmam PLECK ROAD WALSALL. w;r 2fz3 London Stores: 9 Howland Mews West, Howland St., W. 1. Phone: Museum 6225 August 30, 1946 E l e c t r i c a l R e v i e w (Supplement) 8 9 T h e B a l l o o n T e s t U R IN G the war, when many parts of Britain seemed to hang D suspended from a host of barrage balloons, Hackbridg.e transformers were time and time again subjected to the “ balloon test ” when break-away balloons trailed their steel cables across the transmission lines, often at points close to the substation. Yet, although these short circuits were so often and so relentlessly applied, there was not one single instance of a HACKBRIDGE transformer failing to withstand the test. HACKBRIDGE TRANSFORMERS HACKBRIDGE ELECTRIC CONSTRUCTION CO. LTD., WALTON - ON - THAMES, SURREY Telephone : Walton-on-Thames 760 (8 lines) Telegrams : " Electric, Walton-on-Thames ” 90 (Supplement) E l e c t r i c a l R e v i e w August 30, 1946 Tomorrow’s Production Fractional Horse - Power Motors by HOOVER HOOVER LTD. produce a range of F.H.P. motors ideally suitable for machines and appliances needing an individual drive. Brief details o f typical examples are shown here. Each embodies the experience gained in building Squirrel Cage Induction Motors. Split Phase Capacitor millions of electric cleaners, in designing and or Three Phase Types. Solid or Resilient Mounting. producing Radio and Radar Rotary equipment Ball or Sleeve Bearings. on a scale that contributed some item of Hoover equipment to practically every British aircraft H.P. Overall Body Approx. length Diam eter W e ig h t and tank. At the moment production facilities are fully engaged but enquiries based on your 1 AJL" 6 1 0 * " ° 16 2 4 l b s . future reconstruction plans will be welcomed. 1 6 - 9 - " 4 ¡ 0 1 " ° 16 2 6 l b s . 1 6 - 9 - " 2 1 1 1 " ° 16 3 6 l b s . HOOVER LTD Performance curves and data on other types supplied on request. PERIVALE. GREENFORD, MIDDLESEX TOOLMAKERS & DESIGN Brays Lane (COV.) LTD. CO V EN TRY Telephone 4051-2 Invite Enquiries for JIGS, TOOLS, FIXTURES & MOULDS FOR THE ELECTRICAL INDUSTRY AND THE PLASTICS TRADE Highest Accuracy and Finish Guaranteed PUMPS FOR EVERY DUTY The ELECTRIC ELEM ENTS Co. ASSOCIATED PUMPS LIMITED * NOTTINGHAM. 73-77 BR IT A N N IA R O A D . L O N D O N , S.W.Ó August 30, 1946 E l e c t r i c a l R e v i e w (Supplement) 91 This IRON has EVERYTHING! T H E R E are plenty of electric irons on sale, but there is only one Hotpoint “ Plus F iv e .” This is a quality iron— where every detail has been thought out both from the standards of practical use and pleasing design. It answers every requirement ; it disposes of every difficulty previously experienced. In a Swivelling device obviates knots word it measures up to the Hotpoint standard and flex tangles • Automatic — the highest there is. 5-way heat control to suit fabrics • Double thumb rest You’ll be proud to show your customers • Double button nook • Easy this iron and they'll be proud to own one. grip handle eliminates wrist strain • Guaranteed for 12 m onths. UOt TRAM MARK ' P L U S F I V E 9 The Hotpoint Electric Appliance Co., Ltd., Crown House, Aldwych, London, W .C.2 Manchester— 99 Corporation Street 4, and at Dublin, Glasgow, Newcastle-upon-Tyne, Norwich, Nottingham and Reading SPEEDY PRODÜCTION q u ick delivery •' Our organisation is equipped for the speedy production of high quality mouldings up to 8 ins. square —a compression process in conjunc tion with electronic pre-heating is used. Special facilities are available for the design and production of moulding dies to your own specification or sam ples. EŒ £ e BURGESS MOULDINGS LTD., SAPCOTE, LEICESTERSHIRE 92 (Supplement) E l e c t r i c a l R e v ie w August 30, 1946 A Monument to Efficiency In a single passage through the Metafilter, transformer and heavily carbonic ed switch oils can be completely freed from all suspended impurities ; and all traces of sludge and moisture removed—a monumental tribute to the efficiency of the Metafilter. The Metafilter is economical and easy to operate: and can be used on switches and transformers while under load. e r a THE M ETAFILTRATION COMPANY LTD. BEL GRAVE ROAD - HOUNSLOW - MIDDLESEX Telephone - - Hounslow 1121/2/3 Telegrams - - Metafilter, Hounslow t h e APPELBE “BULB FIXER” NO LADDERS REQUIRED Telescopic appliance for fixing and removing electric bulbs. SAVES Any reasonable height can be re a c h e d . TIME Made of Aluminium and can be carried with ease on any cy cle. LABOUR STANDARD I MONEY MODEL SELF-PRIMING for 60 to 200 watt lamps at 16' 6* from ground. 6' 0" PUMPS c lo s e d . I T O' e x tended. Weight are suitable for Deep 3 lb. Cycle dips and Extension Suction Lifts. Hot Con Tubing supplied. densate—Va p o r i s i n g Liquids, Boiler Feeding. " A " MODEL Manufactured by the for 200 to 500 w att lamps E. S. Caps at 20' 0* from ground. 7' O' makers of the well- dosed. 16'6'extended. Weight 5 | lb. Cyde dips and Extension known . Tubing supplied. Used by the leading corporations and electric light companies throughout the W oril Prices and particulars on request Carriage paid in Great Britain. J. F. APPELBE & CO. LTD. RHODES, BRYDON & TOOATT LTD. _ . io*»o* omtfi _ . GREAT UNION STREET, HULL Stockport England. Telephones : 33522, 31212 & 8725 Telegraphic Address: "Appelbeco, Hull" August 30, 1946 E l e c t r i c a l R e v ie w (Supplement) 93 TIME LAGS The important part in so many processes played by delayed action timing mechanisms has led to a demand for much greater accuracy than is afforded by the Oil Dash Pot method. Many engineers have found such problems completely answered Metallurgical Tests by Rotherham Time Lags. For accuracy and reliability these Enfield W orks Expert metallurgists in modern genious in- Edmoncon, N.I8 laboratories contribute their ruments are invaluable knowledge and re orthy pro- search to the exhaustive testing jcts of the of metals and alloys . used in mous House S m ith ’s Main W orks the construction of Smith’s I Rotherham Crick le wood Clocks. Many grades of steel, Sons of brass, phosphor bronze, and loventry. other alloys of nickel, chrome, Jetails of the tin, copper, manganese and arious types Smith’s Watch Laboratory aluminium are used, and, in available, C h elten h am some cases, are actually pro ir.d also of duced to our own special nstruments, formulae. Recording The apparatus being used here is Clo cks, Smith s. Alarm Clock Factory a Tensometer, which accurate :::: etc., will ly records, in tons per square gladly be supplied on re< inch, the maximum tensile strength and breaking strain of all metals and alloys. Sectric House L ondon Illustrated are a few ef the 3 0 Smith Fcctcnes ROTHERHAM » SONS L T D , SMITH CLOCKS 0 ^ / o f f a/or (otfdievoment SMITH'S ENGLISH CLOCKS L TO C R I C KL E W O O D . L O N D O N . N v / The Clock and Watch Division of S.Smith & Sons England Ltd. SaaUrfr S.CM+$A 9 4 ( Supplement) E l e c t r i c a l R e v i e w August 30, 1946 EVERYONE CONCERNED WITH ELECTRICAL INSTALLATIONS NEEDS THIS NEW BOOK All our reserve catalogue stocks were destroyed during the W a r and it is only now that we are able to re-issue some of the most useful ones. The first post-war “ Sunco ” Catalogue shewn here is almost ready. If a copy will be^helpful to you please write to us now— the issue is very much limited. THE SUN ELECTRICAL CO. LTD. 118-120 CHARING CROSS ROAD, LONDON, W.C.2 F< V C C A r o b u s t , p o w e r f u l , s e l f - 1 E J SUSTAINING WINCH A new, heavy- RATCHETS, PAWLS, SPRINGS WORM OR GEAR WHEELS duty switch of robust construc tion suitable for multi-circuit opera tions and capable of giving M a u i dC MivcpAifr £td. a long and trouble-free life. Can INSULATING MATERIALS be built up into I, 2 , 3, 4 or 5-cell units providing a large range of contact combinations. Send for EBONITE Sheets, Rods and Tubes folder giving full particulars. LAMINATED BAKELITE SHEETS Cut Pieces and Turnings a Speciality ’ 1■ < e K o o u c T MADE BY AUSTINLITE LTD. (PROPRIETORS: CHANCE BROTHERS LTD.) 3 INGLEWOOD ROAD, LONDON, N.W.6 Telephone: HAMpstead 3938 LIGHTHOUSE WORKS, SMETHWICK, BIRMINGHAM •eWione : ' August 30, 1946 E l e c t r i c a l R e v i e w (Supplement) 95 [ R o m P T o n 'W.D.B. CABLE CROMPTON PARKINSON LIMITED, ELECTRA HOUSE, VICTORIA EMBANKMENT, LONDON, W.C.2 Telephone: TEMple Bor 5911 Telegrams: Cromt>ark, Estrand. London 9 6 ( Supplement) E l e c t r i c a l R e v i e w August 30, 1946 DAVID McCLURE MERSEY DYNAMO WORKS, STOCKPORT Telephone : Telegrams : Stockport 3653/4 " Motors, Stockport " D.C. MOTORS, GENERATORS FOR COMPRESSORS, CRANES, H0I8TS, PUMPS, MACHINE TOOLS, Etc. Lighting Sets lor Ships’ Auxiliaries, Anodising and Plating, M .G . Sets Oft. •• C lt , H . I Cl„ Ho.d. LONDON, E.C.I cL E .iSSr.i,,:, -T rlllS'pfiU UM- Cable Racks & H angers o f TRUSTFUL &* ù u * E.D.L Specification Polished Conal Metal sole plate; Steel clamping plate; Polished aluminium body ; Black Plastic handle; Rubber insulated contacts from iron; W eight approx 4 lbs.; 6-ft. 3-core flex; Individually cartoned; 200-220 or 230-250 volts— 45 0 w a tts TRUSTFUL PRODUCTS LTD. 100 ST. M A R TIN ’S LAN E, LONDON, W.C.2 Telephone: TEMPLE BAR 049//2 S. African Agents: E. Donald & Co.. P.O. Box 3292, Cape Town THE ELECTRIC DEPOT LTD., PRITCHETT S T ., BIRMIHBHAM l » E . R . 4 . SPOTLIGHTS - FLOODLIGHTS - DIMMERS STAGE BATTENS AND FOOTLIGHTS THEATRE AND CINEMA EQUIPMENT SPECIAL DISCOUNTS TO TRADE D. WALTER & CO. LTD. Actual Manufacturers 61-63 LANT STREET, LONDON, S.E.I TELEPHONE: HOP 3451 August 30, 1946 E l e c t r i c a l R e v i e w (Supplement) 97 NOW for reconstruction OR six long years the great factories and foundries of FMetropolitan-Vickers were geared for w ar; their many thousands of workpeople laboured to produce “ the tools to finish the job” and now that job is finished ; hut there is another battle to be waged—the great reconstruction of homes, of industries, of trade—both home and abroad, and the rehabilitation of millions of our men and women. In this enormous task, the same vast production capacity which made the ‘ tools to win the w ar’ will make the ‘ tools to win the peace ’ . . . in the form of the finest Electrical Power Equipment in the world. i r a n r ~ r r f ^ " ^ — — co., l t d . TRAFFORB PARK • MANCHESTER 17. A/XASf14 IMPROVE YOUR LIGHTING in consultation with METROVICKS ILLUMINATING ENGINEERS 98 (Supplement) E l e c t r i c a l R e v i e w August 30, 1946 e c t t i c v e t The type “ CS ” thermostat is specially designed for the automatic control of electric ovens and its reliability has been proved by years of operating experience. Sensitivity and ability to give trouble-free performance after years of hard work were the two principal objectives of design. The extensive use now made of the instrument is a measure of its success. THE RHEOSTATIC CO. LTD. SLOUGHENGLAND Tel.: SLO U C H 23311 /«. Grams: RESISTANCE, SLO UCH E I E C T R I C RADIATORS I f e ï â l R FOR WARMTH^k * Telephone Thos DRYDfNi Sons lrd. % 7 7 I n t h e months to come there are many obstacles to be surmounted before production will meet demand. During this difficult period we will ensure as fair a distribution as possible. DOWSING CO. LTD. MEK-ELEK Engineering Ltd. K a n g le y B rid ge Rd. Lower Sydenham S.E.26 17 Western Road, Mitcham, Surrey dotv< August 30, 1946 E l e c t r i c a l R e v i e w (Supplement) 99 FOR DEPENDABLE SUPPLY— ELECTRIC- CONSTRUCTION TRANSFORMERS The thousands of E.C.C. TRANSFORM ERS installed throughout the Country and Overseas prove their ability to provide unfailing service ^ELECTRIC CONSTRUCTION WOLVERHAMPTON L o l M TELEPHONE • 214-55 -7 LINES London Office : 61 Catherine Place, W estminster, London, S.W .l. Telephone: Victoria 3482-3 1 0 0 ( Supplement) E l e c t r i c a l R e v i e w August 30, 1946 We make mouldings in any plastic Contact arc assembly blocks, terminal blocks and covers, coil formers and turrets and mounting blocks, material, thermo-setting or thermo switch couplings and spindles, brush arms, trans former bobbins and covers, lead guide bars, trimmer plastic. We also make laminated rotors, damper caps, brush, boxes and caps, brush mouldings. Our press capacity is holder bodies, caps and flanges, commutator end shield covers, terminal strips and connector bushes, from 10 to 1,500 tons, and here are junction-box escutcheons and insulators, transmitter a few of the mouldings we make for braces, covers for operator lamps, bezels, hand-wheel push-button sleeves, aerial insulators, meter bases the electrical industry : and covers. ASHDOWN8 LTD., ECOLESTON W ORKI, IT. HELENS, LANCI ■ TELEPHONE: IT. HELENS 320« v * “ r r ¿ v i t D I Ë KNIGHTON LANE, BUCKHURST HILL. ESSEX. ELECTRIC HEATING APPLIANCES “THERMONETS” for INDUSTRIAL HEATING G re lco MULTI-PLUG ADAPTORS ELEVEN TYPES Reg. Design Fully illustrated descrip tive folder on application IS BARBER i COLMAN LTD. '- f t MARSLAND ROAD • BROOKLANDS MANCHESTER • TEL. SALE 2277 (3 LINES)- GRAMS. «»ARCOL" SALE QRELCO Ltd., Grelco Work«. Hopcott, Mlnehead, 8omenet August 30, 1946 E l e c t r i c a l R e v i e w (Supplement) 101 s6 The Sw itch M U S T trip ! Immediately the fault-finding relay locates the trouble, power must be available for tripping the switches. This calls for a battery and equipment of utter reliability and first-class quality. Chloride Switch Tripping equipment meets these requirements to the full. Each self-contained unit comprises a battery of lead-acid cells in stout, non-conducting glass boxes; a trickle- charger and a load test device. Electrolyte is always visible. Battery test readings can be taken under load from instruments on the cabinet, full charge is constantly maintained without gassing, electrolyte needs no renewal. Cïjïorifre SWITCH TRIPPING EQUIPMENT THE CHLORIDE ELECTRICAL STORAGE CO. LTD. 77 King St., Manchester 2. Tel: Blackfriars 4731 102 (Supplement) E l e c t r i c a l R e v i e w August 30, 1946 35/- LIST PRICE f t / A M * * Subject to Trade for tk* Discount C o r f u * * * 1 9 OE L U X E TRANSFORMERS Lowest Priced Iron ON THE MARKET DESERVEDLY WIN UNIVERSAL PRAISE Automatic Thermostatic Heat Control. Bakelite handle. Overall size, 9x5x5 ins. For light Industrial or From the day we sold the first of our “ de Luxe ” Range of Mains and Filament Transformers they have received Domestic use. Robust construction. Well balanced. quite a “ fan mail ” from users the World over expressing Substantial 3-core Flex. Toe-shape Sole Plate facilitates entire satisfaction on their performance under all con ironing of pleats, hems and buttons. ditions. Mind you—and please don’t think us conceited For further details and prices write : — we are not surprised because we really did do a good job with the “ de Luxe ” Range as can be judged from their Superb Technical Design - Finest Quality Materials - Fligh Operational Efficiency - Guaranteed Reliability - Beautiful Appearance. Why not send for further details and full specifications TO-DAY ? H o c J e m a n WODEN TRANSFORMER CO. LTD. MOXLEY ROAD BILSTON STAFFS ^ ENGINEERING Co. Ltd. TEL.: BILSTO N 4195» 16-18 Russell Street, Manchester I ENGRAVED BRASS, CAST BRASS AND ALUMINIUM, ENAMELLED BRONZE AND CHEMICALLY ENGRAVED PLATES OF ALL TYPES IN ALL LANGUAGES MANU FACTURED BY THE EMPIRE’S LARGEST GENERAL ENGRAVERS. SAMPLES AND QUOTATIONS ON REQUEST. EDWARD H. THEW LIMITED. 11. Dean Sir^ei Newcastle - on - Tyne • . . for all electrical installations & Co. Ltd. Head Office : 39 Victoria Street, London, S . W . I . Tel. : A B B e y 8080 (18 lines) ! Manchester, Bournemouth, Glasgow, Birmingham, Hull, Southampton, Hereford, Sheffield, Thetford. York, Bristol, Kdinburgb, Aberdeen August 30, 1946 E l e c t r i c a l R e v i e w (,Supplement) 103 Current Price List cancelled New List available Plain Socket WEATHERPROOF METAL - CLAD PLUGS & SOCKETS 5 to 300 Amp. 250 / 500 Volt. 3 and 4 Pole Earthed Type and 2 Pole. For Electric Lighting Flange Plug and Power, and C o v e r Transmission, Communication, Portable Tools, etc. Plain Socket Manufactured by SIMMONDS & STOKES LTD. VICTORIA HOUSE. SOUTHAMPTON ROW. LONDON. WCI HOLBORN S437 104 (Supplement) E l e c t r i c a l R e v i e w August 30, 1946 All makers and dealers in electrical equipment, service engineers and repairers need this portable Flash Tester. Detects faults at 1,000 to 2,000 volts. Send for interesting leaflet Q 53. “ All about Flash T e stin g .” 25 AMP. TRIPLE-POLE FLOATLESS LIQUID LEVEL ON-OFF SWITCH CONTROL SYSTEM ‘LECTRALEVEL” » For PUMPS, VALVES, Other Products: SIGNALLING, RECORDING AUTOMATIC ► For DRAINAGE, SUMPS, S T A R T E R S FLUSH STORAGE TANKS, Etc. M O U N T IN G LIMIT SWITCHES CONTACTORS Ask for leaflet 94IER TYPE PE253B OVERLOADS British Klockner Switchgear Ltd. Chertsey, Surrey. Phone : ChwtMj 2221 2. (POUTECHNiKI 1 August 30, 1946 E l e c t r i c a l R e v i e w h i INSTRUMENT WIRES INSULATING MATERIALS EN AM ELLED , SILK and COTTON covered Copper Wires, Single or Stranded, also Tinned, Paper, Asbestos and Plastic Westoflex covered. RESISTANCE WIRES. LITZ WIRES. MICA, MICANITE and B A K E L IT E In all forms. Heat Resisting Boards. Canvaslte for Silent Gears. Oil Cloth, Silk and Paper. Slot Insulations. Insulating Varnishes. Varnished Fabric and Plastic Sleeving. Moulded and Machined Pieces, etc WEST INSULATING COMPANY LTD. 2 Abbey Orchard Street, Westminster, S.W.I horizontal or VERTICAL MOUNTING FOR LARGE BSS CONDUIT BOX WARDLE y fê fîfflM © iFmnroM© Price List L587 on application WARDLE ENGINEERING CO. LTD. OLD TRAFFORD. MANCHESTER 16. LONDON 34 VICTORIA STREET. S.W.I • f of ' N MICA AND MICANITE BATTERY CHARGERS INSULATORS RECTIFYING EQUIPMENT TRANSFORMERS Precision Gauged and Stamped B \ | | N DU JTRIEJI LTD. Condenser Plates Radio Valve Spacers, etc. J U i . c [^7 f WILLIAMiON JT. TAYLOR & PETTERS LTD.3-11 WESTLAND PLACE.N.I ^ WOLVERHAMPTON ^Ôgi-J Insulation Engineers Tel. : Clerk. 4105 mhNMm M CORK MANUFACTURING CO. LTD., South Chingford, London, E.4 Telephone : SHverthorn 2666 (7 lines) (Associated with Flexo Plywood Industries Ltd.) Printed m U-reat B ritain at THE C hapel liiVEH PRESS, Andover, H ants, and published by ELECTRICAL R eview . Lim ited at Dorset House, Stain * '“ 3 ^ . T