Colliery Distribution
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COLLIERY DISTRIBUTION THE EDISON SWAN ELECTRIC CO. LTD. 155, C H A R IN G ‘C R O S S R D ., L O N D O N , W .C .2 E l e c t r ic a l R e v ie w October 27, 1944 A .S.C .M . Steel Conduit is manu factured only by ALMA & CRANMORE TUBE C O . LT D . BARLOW. H. J. & CO. LTD. Accepted practice in the Lobster World is a ELECTRICAL periodical shedding of his casing. Until its renewal CONDUITS LTD. he is unprotected. GENERAL ELECTRIC CO. LTD. GRIFFITHS. ISAAC & SO N S Accepted practice in the Electrical World is HILDICK & HILDICK permanent protection with A.S.C.M. Steel Conduit. McDOUGALL. JAMES LTD Worlds of difference? .... Y e s! SIMPLEX ELECTRIC CO. LTD. Comprising : Credenda Conduits Co. Ltd. SPEC F Y A N D USE Perfecta Tube Co. Ltd. Simplex Conduits Ltd. Stella Conduit Co. Ltd. A.S.C.M. METALLIC SEAMLESS TUBE C O . L T D . STEEL TUBE & CONDUIT CO. (Middlesbrough) Ltd. TALBOT-STEAD TUBE CO. LTD. TIPPER BROTHERS (Bilston) LTD. WALSALL CONDUITS LTD. Advertisement of the Association of Steel Conduit Manufacturers, 25 Bennett's Hill, Birmingham 2 October 21, 1944 vmELECTRICAL REVIEWcf Khcmhq Most of the Peaks of Achieve ment have been reached by the roping together of in trepid men in common adventure. W e have found that to be a sound business principle . a team spirit that quests ever upwards to fresh heights of attainment. LEADERS IK ELECTRIC HEAT - ft A WATER HEATING GRAMS : HEATRAE, NORWICH HEATRAE LTD.. NORWICH PHONE : NORWICH 25131 IS IT ALIVE? THE “ PARTRIDGE ” PRESSURE FOR WIRELE8S DETECTOR AND SIMILAR A WIDE RANGE OF CONNECTIONS SIZES IN STOCK (Regd. T.M. No. B.S8I95S) will Infallibly tell you, giving visible and audible Indication ROSS COURTNEY & Co.Ltd. (■o sarth oonnseUon neulnd) ASHBROOK ROAD, LONDON, N.I9 Range Length Type up to of handle V o lu 11.000 36' 60,000 84 ' 15,000 48' KNOBS 11,000 36' 33,000 72' to the specific requirements of our custom ers A lto m akers o f “ W estm in s ter” VacuumTube Detector M akers of all ty pos of repetition and H.T. Earthing Rods products from the bar in all Patent No S1P»19 m e t a ls T». WESTMINSTER E M . Co. U M-C-L and RE PETITION LTD. Victoria Road, Willesden Junction, N.W.I0 Pool Lane. Langley. Birmingham. Telephone: Telegrams: Willesden 1700-1 “ Regenog, Rhone, London. E lectrical Review October 2 7 , 1 9 4 4 [S5 T S i « « rw o! Natural daylight in factories k would be a boon to war pro- » duction. Impossible to have such light 24 hours a day, of course. But, with Siemens “ Sieray ” Fluorescent Tubular Lighting, you get a powerful, all-pervading, soft light, so near to daylight as to be almost the same. No glare. No interfering shadows. And economical in electricity consumption. FREE ADVICE — A Siemens industrial lighting specialist will, without obligation, advise on existing lighting systems. He may be able to suggest improvements which will save current charges and the N a tio n 's fu e l. FLUORESCENT TUBE fJlw, V a A d stick of¡ Good. jC¿qhZinc¡ ' SIEMENS ELECTRIC LAMPS & SUPPLIES LTD., , 38/39^ U pper Tham es Street, London, E.C .4 To t a l l y E n c l o s e d A ir C ir c u i t PEEBLES A lternators W ith S el f -c o n t a in e d C o o l e r s ' Air Coolers form an integral part of the machine, and excava tions for deep founda tions and basement air ducts are eliminated SIMPLIFIED AIR CIRCUIT MAXIMUM A C C ESSIBILITY 3750 K.W. -8 power factor 3-phase 50 cycle. 5300 VolL 1000 t p.m . Totally Enclosed Air Circuit Alter nators with self - contained coolers, dial type thermometers for inlet and outlet temperatures, alarm Jtonj» and emergency dampers» October 27, 1944 E l e c t r ic a l R e v ie w 3 Made for 30,60,100.160.200,300 & 500 Amps., 600 Volls; Double, Triple and four pole and oiifh neulral links. Firred for Conduir. busbar chamber flanqe or cable glands. Sturt/ W iring, ftiim m um tTlain ten cu u x LONDON: A W ZELLEY MANCHESTER GLASGOW- 73. GREAT PETER ST., B EL FA S T-BURTON-ON-TRENT EXETER ■SOUTHAMPTON W EST M IN S T E R ,SM.I BILL SWITCHGEAR LTD BIRMINGHAM-20 BIRCHFIELDS ■ SOU (A LIN ES) "a i c h o " B I R M I N G H A M Change of Title In order that the Company’s title shall be more descriptive of its range of products, the name of The Concordia Electric Wire Co. Ltd. has, with the sanction of the Board of Trade, been changed to THE CONCORDIA ELECTRIC WIRE & CABLE CO. LTD. LONG EATON NR. NOTTINGHAM 4 E l e c t r i c a l R e v ie w October 27, 1944 SHIP WIRING... [RomPTon COBLES TAKE A LOT OF BEATING CROMPTON PARKINSON LIMITED, ELECTRA HOUSE, VICTORIA EMBANKMENT LONDON W C 9 Telephone : TEMp/e Bor 5911 ' Te/egrcm s : Crom porP, Estrand, London 5 October 27, 1944 E l e c t r ic a l R e v ie w b X SWITCHGEAR ,T-H/ OIL-BREAK • AIR-BREAK • AIR-BLAST A I R - B R E A K TRUCK (OIL-LESS) C la ss ‘A L ’ UP TO 3*3 kV 100 M VA FULLY-TESTED FOR SHORT-CIRCUIT DUTY • Arc duration approximately one half-cycle at 100% rating. Long Contact Life. r 1 d n r u THE BRITISH THOMSON-HOUSTON CO.,LTD. B l H L CROWN HOUSE. ALDWVCH. LONDON. W.C 2 6 E l e c t r i c a l R e v i e w October 2 7 , 1 9 4 4 WALSALL CONDUITS LTD.WEST BROMWICH October 27, 1944 E lectrical Review DELARMET Designed primarily for use in place of Ball Bearings and where high rotational speeds are not involved. They consist of two components, the rotary portion being of steel and the stationary portion of a special plastic material possessing a practically permanent graphoid surface. Further details and particulars sent on request. jfe Ifa iiu c flastics K U IMPERIAL HOUSE • 84 REGENT ST. • LONDON • W • I Telephone : REGent 4901 8 E l e c t r i c a l R e v ie w October 27, 1944 T H E P O C K ET TESTOSCOPE Size of a Fountain Pen A convenient rapid fault-finding instrument for use on A C or DC Circuits Danger for use on S p o t s ! 100-750 volts That corridor with FOR TESTING a blind corner, that SWITCHES OPEN CIRCUITS awkward stairway, that doorway in LIVE CONDUCTORS LEAKAGES a dim c o r n e r— EARTHS INSULATION VALUES these are the danger spots. Wigan and NEUTRAL WIRE POLARITY Lacent Prismatic Lighting is your solution. CONTINUITY, ETC. Wigan and Lacent fittings comprise a full range of units. Fully descriptive leaflets and specifications are available on request. Q Ll ^h~ci\X/SLA<Ju I < l o U i x U u f H ,. DRAKE&GORHAM HEYES WHOLESALE LTD. c / m L ÿ a n 77 LONG ACRE, LONDON, W.C.2 Telephone : TEMple Bar 3993 MANCHESTER:29 Piccadilly. BRIGHTON: 24 Marlborough Place. GLASGOW : 182 St. Vincent Street. BRISTOL : HEYES & COMPANY LI M IT El 2-4 Church St., Temple. DUBLIN : 2 Church Lane, College Midland Representative : [Green WATER HEYES WORKS, WICAI W. T. BOWER, 184 Jockey Road, Sutton Coldfield Agent : F. G. K.etelby, GàMtte^uildings, Corporation S dm 1082 October 27, 1944 E l e c t r i c a l R e v ie w M ay u/e lend you cl c o p y o j j thll neu/ publication Ÿ THE ENGLISH ELECTRIC COMPANY LTD. — STAFFORD — 10 Issued by Howlands Electrical Accessories. Ltd.. Hockley Hill. Birmingham 18 October 2 7 , 1 9 4 4 E l e c t r i c a l R e v ie w This popular radiant fire is ideal for bathrooms, nurseries, etc., where it is out of reach and is con trolled with perfect safety by a cord switch. It is one of the models we plan to put into production again as soon as condi tions allow ... .to meet the more urgent demands of your customers for efficient radiant heating. F i i i i m i HiFerranti Ltd.Moston, Manchester, 10. London Office: Kern House, Kings way, W.C .2. -H TINNING The Modern Process, using Stannate Tin Solution, produces strictly con trolled coatings, predetermined and uniform in thickness, even on articles of irregular shape. Deposits of reasonable thickness may be built up, which are not possible with a tin chloride bath. The solution also permits of a faster speed of deposition. & C? LT-D GREAT HAMPTON STREET BIRMINGHAM 18 October 27, 1944 E l e c t r ic a l R e v ie w 13 Conductor The successful development of a complete technique for the design, D ielectric manufacture and installation of super-tension cable systems for Metallised Paper Screen 132 kV working pressure, marks a definite step forward in the progress of high voltage power Inner Lead Sheath transmission. The constructional details of the Wire Woven HENLEY Impregnated Gas Cushion Cotton Bedding Tape Cable are indicated in the accom panying illustration.