— Let it be xi FERRANTI TRANSFORMER F.T.S8a E lectrical Review ucrooer u , i w OUTPUT CHART Throwing a new light on output with SiÉMÊRS Lamps Increased output depends largely on providing PLANNED Lighting with Siemens Lamps means the appli­ operatives with sufficient light, correctlyjpositioned cation of good lighting principles to your factory installation. It —in other words, with PLANNED Lighting. The does not necessarily mean in­ Siemens system ofscientifically PLANNED Lighting, creased operating cost but frequently a sav­ using Siemens Lamps, goes a long way towards ing of current. Siemens Lighting compensating for the lack of skill in inexperienced engineers are at yo ur Service — workers. It safeguards their health, reduces call them in. fatigue, spoilage and accidents. There’s no obli­ gation. Siemens Electric Lamps & Supplies Ltd., 38/39 Upper Thames Street, London, E.C.4 O ctober 13, 1944 E l e c t r ic a l R e v ie w 1 BULL MOTORS (e .b .e f .t i j r n e f H IPSWICH ALSO LONDON, MANCHESTER. BIRMINGHAM, SHEFFIELD, NEWCASTLE AND GLASGOW 2 E l e c t r i c a l R e v ie w October 13, 1944 ASITON M U LTI-CORE CABLES Tage Braided and Compounded Bitumen Finish. Usually supplied In 5, 6, 8, 10 and 12 Core. T.R..S. Plastic Extruded or Braided and Com­ pounded. Laboratory controlled throughout manufacture. T o t a l l y E n c l o s e d A ir C i r c u it A l t e r n a t o r s W it h S e l f -c o n t a i n e d C o o l e r s Air Coolers forftt SB integral part of thé m achine, and excava­ tions for deep founda­ tions and basem ent air ducts are eliminated SIMPLIFIED AIR CIRCUIT MAXIMUM ACCESSIBILITY 37S0 K. W. -8 power factor 3-phase 50 cycle. 6300 Volt. 1000 r p.m, Totally Enclosed Air Circuit Alter­ nators with self-contained coolers, dial type thermometers for inlet and outlet temperatures, alarm horn, and emergency dampers- BRUCE PEEBLES &. CO. LTD., ENGINEERS, EDINBURGH. 3665 October 13, 1944 E l e c t r ic a l R e v ie w 3 M W i l l i p i . Made for 30.60,100.160.200.300 & 500Amps.. 600 Volls; Double. Triple and four pole and cuiTh neuTral links. Fined for Conduir. busbar chamber _ flange or cable glands. f # Scuyy W iring, m inim um m uintetianct LONDON: A W ZELLEY 7 3 , G R E A T P E T E R ST., MANCHESTER GLASGOW- W E S T M I N S T E R .S.tV.I B E L F A S T BURTON-ON-TPENT BILL SWITCHGEAR LTD EXE TER - SOU THAMP TON B/RCHf/ELDS-SOU (4 LINES) BIRMINGHAM-20 "a ICN o " B / R M / N G H A M Woman's Work !n War-Time — . The AX S. Its a grand job of work she s doing. Regularly getting vital convoys through. Hard work, in all hours, all weathers. When she's finally ** through ” perhaps she’ll get her reward in a home of her own—with a Burco to help make life easier. After hostilities, B u rco ’s for every home will be the aim ; meantime patience, please. BURCO LTD., ROSE GROVE, BURNLEY. ELECTRIC WASH BOILERS 4 E l e c t r i c a l R e v ie w October 13, 1944 Serving with the RGENT . that’s the tag on nine out of ten messages : accuracy, U too, is imperative. Signalling ^ ^ i j ^ G under war-time conditions is a secret service. STC Selenium Rectifiers are silent in operation; moreover, they keep fit for long periods without main enance and are free from moving parts. Where direct current is required from an A.C source they ensure sustained and satis­ factory service. For Service use they are given a protective finish which withstands the most severe atmospheric conditions. Selenium Rectifiers Rectifier Sales Departm ent: STANDARD TELEPHONES AND CABLES LIMITED, NEW SOUTHGATE, N.II October 13, 1944 E lectrical Review FRACTIONAL HORSEPOWER MOTORS The most popular in the country Spigoted o p Plain Endshields for direct mounting on the machine BTH products include all Vertical, Horizontal, kinds of electric plant and or Inclined Mounting equipment; and Mazda, ercra, and Sodra Lamps Sizes from i H.P. to i H.P. M Three-phase up to 550 volts Single-phase up to 250 volts D .C. up to 520 volts 1 r D ' T ' U TH E BRITISH THOMSON-HOUSTON CO.,LTD. J D I H L CROWN HOUSE, ALDWYCH, LONDON, W.C.2. A 3 144 _ ÏOV. IT , PLEASE GIVE GtNtRQUsiv ^ T mT nT bT aT c I 6 E l e c t r i c a l R e v ie w October 13, 1944 The illustrations on this page show a few installa­ tions of M etro vick Engine Type Generators. 1,000k W Me trovick Engine Type Alternator with closed circuitventilation. Installed in the West Indies and drivenbyaCrossley Premier Vis-a-Vis 212 r.p.m. Gas Engine. 37 5 B .H p.375 r.p.m . B row ett 450 kW Metrovick Alternators Lindley Steam Engine driving driven by Beiliss & Morcom a Metrovick 250 kW 4,000 Diesel Engines in a British Power Volt Alternator at a Chinese S tation. C oal M ine. 1 of 2 Metrovick 120 kW 500 r.p.m. Alternators driven by a Beiliss & Morcom Steam Engine at a Laundry. C/A 101 / ¡ a l i i " i d s . IMPROVE YOUR LIGHTING in consultation with z-^ producticm METROVICK’S ILLUMINATING EN GIN EERS October 13, 1944 E l e c t r i c a l R e v ie w 7 f i t EVERY PROBLEM OF LI FTING - LOWE RI NG - PUSH I NG - PU LLI NG DUFF NORTON _ JACKS For over 50 years ihe Duff-Norlon Jack has been recognised Ihe world over for ils special consiruclion and high efficiency. The illustration is of a Duff-Norton Automatic Lowering Jack of 10, 15 or £0 ton capacity. This is indeed a mighty member of the Duff-Norlon Jack family, packed with strength and power, with maximum lifting or lowering capacity. It combines simplicity of design with high quality of material. The uses of this jack extend over all industries -. railways, mines, quarries, road transport companies, general contractors, telephone and telegraph companies, all of whom find this jack invaluable. AIR COMPRESSORS • PNEUMATIC TOOLS • ELECTRIC TOOLS • DIESEL ENGINES • VACUUM PUMPS CONTRACTORS’ EQUIPMENT • ROCK DRILLS • DIAMOND DRILLS • OIL WELL TOOLS Robert Sharp arid Partner* E l e c t r i c a l R e v ie w October 13, 1944 T R A K THEMOTOR FOR YOUR M A CH IN E Outside our large range of standard motors for direct or geared drive we are always prepared to collaborate with makers of new machines requir­ ing special motors. For best results you want not a motor but the motor. TH E NORMAND E LE C T R IC A L CO. LTD. NORTH STREET • CLAPHAM COMMON LONDON S W 4 TEL: MACAULAY 321 1.4 October 13, 1944 Electrical Review 9 MORE LIGHT ON THINGS TO COME We've already gone a long way While meeting the priorities of war Crompton Lamps have made great strides. With the complete lifting of the black­ out you will find that Crompton have gone a long way in preparing for the brighter future. CROfiPTOn L u m p s for the LA TEST in lighting CROMPTON PARKINSON LIMITED. ELECTRA HOUSE, VICTORIA EMBANKMENT, LONDON, W.C.2 Telephone : TEMple Bar 5911 Telegrams : Crompark, Estrand, London 1 0 E l e c t r i c a l R e v ie w October 1 3 , 1 9 4 4 Recommend Elasta lamps, the lamps your customers can rely upon to give them dependable service all the time. E.L.M.A. LAMPS MADE IN ENGLAND POPES ELECTRIC LAMP CO.,LTD. 5 , EARNS HAW STREET,NEW OX F PRO ST.,LQND0 N.W .C.2 telephone: TEM ple Bar 6074. Telegram s: “ Duramentum, Westcent, London.” Branchos\hoiding stocks from which supplies can be obtained :— 18 P0»|AS?CMES|T!c! LEEDS: i Park Square. 18 Poo St., Market Street. Tel.: Leeds 22119. LEICESTER : T e l.: Deansgate 5687. Grams : 89 London Road. Tel.: Leicester 59028. •ida.* Grams: "Pope's, Leeds 22119.” Popes, Deansgate 5687.” Grams : “ Pope's, Leicester 59028. BIRMINGHAM: 3 Grosvenor Chambers, Broad St. Corner, Broad Street. B R IS T O L : T e l.: M idland 2580. 123 Victoria Street. T e l.: Bristol 23239. Grams : “ Pope's, Midland 2580, Birmingham." ^rams:Grams: ••“ roPope's, p , Bristol 23239.' BELFAST (Managersi: Campbell, Gardner & Co.): 27 Franklin Street. Tel.: Belfast 25171. Grams: “ Camergard, Belfast." Liverpool Representative : Mr. B. MARKS. 2» Lascelles Road, Liverpool 1». October 13, 1944 E l e c t r i c a l R e v ie w 1! % % s Ç f it 'é t ~ z T o r e t n o if ~ c f / o t l c S t V c f The “MINERA” This popular portable fire (adjustable feet) is one of the models which we plan to put into production again as ' soon as conditions allow ... to meet - the more urgent demands of your customers for efficient radiant heating. % I ELECTRIC FIRES FERRANTI LTD., Moston, Manchester, 10.