Vol. CXXXV. No. 3483 AUGUST 25. 1944 9D. WEEKLY
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SUBSTATION VENTILATION Vol. C X X X V . No. 3483 A U G U S T 25. 1944 9d. W E E K L Y ELECTRA HOUSE • VICTORIA EMBANKMENT LONDON W . C .2 ii E l e c t r ic a l R e v ie w August 25, 1944 w TRUNKING SYSTEMS • ' ALSO JG afrouk co6l& oh M te ake MAKERS ¿cu> ed 4 y uA iag ¿o& d ccjbpek OF THE ooitnectiond Bus B ar Tee OVERHEAD DISTRIBUTION SYSTEMS DRAKE & GORHAM Lf? STANDARD RD.- NORTH ACTON • N.W.10 Telephones: Willesden 6601-2 Telegrams: Tincomar “ Harles London.” August 25, 1944 E l e c t r ic a l R e v ie w ^ c J h ł c f Kh cm h q H ctv In the intimate “ oneness ” between horse and rider lies the whole art of taking fences neatly and without spills. That is true of any successful industry. The greater the "oneness ” between Employers and Employed— the better the product takes its fences by leaps and bounds. Horse-sense ? W E ’V E found It so ! LEADERS IN ELECTRIC WATER HEATING HEATRAE LTD.. NORWICH PHONE : NORWICH 25131 GRAMS : HEATRAE, NORWICH “WESTMINSTER” THE “FACILE" T E R M IN A L Brush Send for Prices and List of all Holders kinds of Term inals 100,000 ROSS COURTNEY &Li£ SUPPLIED ASHBROOK ROAO, LONDON, N. 19 MADE TO SUIT ANY MACHINE Dynamos and Motors Rewound and Re-constructed. “ Partridge ” Pressure TAPPED NUTS Detectors,“ Partridge” Earthing Devices, COCONUT SHY I to «he spec. _ /f'C'N I i f l c r e q u i r e - ■ J ft71'* j[POR A 1 ^ —5^ I m e n t s o f o u r Switchgear, Photographic Arc Lamps, c u s t o m e r s Electric Welders, Medical Arc Lamps Makers of all types of re petition pro d u c t s f r o m the bar In all Th, WESTMINSTER EllG.Co.Lm. m e t a l s Victoria Road,WlllesdenJunction,N.W.IO M C Land REPETITION LTD. Telephone : Telegrams : Pool Lane • Lanqleif • Birm ingham . W illesden 1700-1 “ R e ge n cy , P h o n e , Lon d on A , 2 E lec tr ic a l R eview August 25 1944 REDIFFUSION Radio Heating This is the Rediffusion R.H.2, delivering more than 250 watts of radio frequency power. Only 18 x 15 x 12 inches, it is very simple to instal and control. The matching unit shown on the bracket may instead be coupled to the set through a 6-ft. screened cable. A screened heating cage 12 x 12X12 in ch es can be supplied for laboratory work on moulding powders and other small specimens. At present deliveries can only be made for high priority work, but we illustrate this as an indication of Rediffusion advance development. REDIFFUSION LTD Designers and manufacturers of Radio Communication and r e d i f o n Industrial Electronic Equipment A SUBSIDIARY OF BROADCAST RELAY SERVICE L I |j | T E Q VICTORIA STREET (PHONE VIC TO Ri A 883 i August 25, 1944 E l e c t r ic a l R e v ie w 3 ERE is the weapon that “ converts ” Serving with the H Allied Sea Power into Land Power . the landing barge. The first hammer-blows that are cracking the LANDING PARTIES “ fortress of Europe ” come from these tough little craft and their even tougher cargoes of indomitable men. Wherever the job of converting A.C. current to D.C. is necessary, STC Selenium Rectifiers should be in use. They are built to with stand engine-vibration, and the effects of damp and salt-laden air. There are no moving parts to cause trouble and no servicing is necessary. Selenium Rectifiers Rectifier Sales Department : STANDARD TELEPHONES AND CABLES LIM ITED, NEW SOUTHGATE, N .n 4 E l e c t r ic a l R e v ie w August 25, 1^44 T H E NORMAND ELECTRICAL CO. LTD. NORTH STREET • CLAPHAM COMMON LONDON S W 4 TEL: MACAULAY 32li .4 August 25, 1944 E l e c t r ic a l R e v ie w 5 STI RTE1AXT ELECTROSTATIC PRECIPITATORS L a r u e : a n d S m a l l S c a l e P l a n t s f o b E l i m i n a t i n g R e s t , E ij m e a n » M i s t Special designs for prevention of oil haze in machine shops and removal of welding fumes, cleaning of air of atmospheric dust for optical, photographic and similar work. Our reference W II4 / U will gladly supply full particulars. St u r t e v a n t engineering Co. Lt d . 2 5 . W o r c e s t e r R o a d , S u t t o n .S u r r e y . E l e c t r ic a l R e v ie w August 25, 1944 ENERGY FOR THE NATION S FACTORIES, WORKS & PUBLIC SERVICES Uninterrupted transmission of electrical energy by C.M.A. Cables in quantity greater than ever before in our history is playing a most vital part in Britain’s supreme effort for victory. The India Rubber. Gutta-Percha'& Tele- graphWorksCo Ltd (The Silvcrtown Co.) Liverpool Electric Cable Co Ltd The London Electric W ir e Co. and S m ith s Ltd The Metropolitan Ele c tric C a b le & Construction Co. Ltd Pirelli-General Cable W orks Ltd (General Electric C o Ltd.) St Helens Cable & Rubber Co. Ltd S ie m e n s B ro th e rs & Co Ltd (Siemens W T Henley’» Electric Lamps and Telegraph Work» Supplies Ltd ) Co. Ltd Standard Telephone & Cables Ltd U n io n C a b le C o L td Advt. of the Cable Makers’ Association, High Holborn House, 52-54 High Holborn, W .C.I. Phone: Hoi born 7633 8 E le c t r ic a l R eview August 25, 1944 mA4 4 4 A A A À AAA 4.4 A A A A A A AAA AAA A 4 A 4 A A .4,4 A A a a a a A A Aa However the home o f the future is going to be built, PRE-CAST the womenfolk are already g ' C i ' a n i L — and rightly— making it clear that real efficiency in planning will be demanded. or BRICK And that means the really all-electric home, with an — th ey' abundance o f such good things a s .............................. a ll need. PREMIER xj^/sie- (o/ec/tecn/ Kettles, Irons, Fires, Toasters, Coffee Percolators, etc. The finest quality for over 35 years PREMIER ELECTRIC HEATERS LIMITED • BIRMINGHAM, ? B4AAAAi4AA4AAA4i4A4AiAAAAAA4AA4AAAAAAAAAAAAAAAAAAAaaaa,aWYVYYYYYVVVYYYVYYYYVVVYfVYYYYYVYYYYVYYYYw a a a a ^4 August 25, 1944 E l e c t r ic a l R e v ie w In «very port, B.I. cable drums, by regular arrival over the past fifty years, have become as well known to dockyard workers as the cables themselves are known to Engineers throughout the world for their reliability in service. The illustration shows B.i. 33 kV. Cables being unloaded at Cape Town. BRITISH INSULATED CABLES LTD., Head Office : PRESCOT, LANCS., ENGLAND. Telephone: PRESCOT 6S71. ® E l e c t r ic a l R e v ie w August 25, 1944 ARSING Hâtions Electric POWER is a mighty sinew of the nation's effort. It must be GUARDED against leakage. Tullis Russell Rothmill Cable Insulating Papers are called upon by leading cable manu facturers to perform this task, and it is carried out admirably by these renowned, uniformly high-quality insulating papers. Rothmill Papers are guaran teed free from metals and grit. W rite for details of the com- plete range. ROTHmiLL CABLE INSULATtNG PAPER T ûlL t‘H utted rCo.Xid Auchmuty * Ro.h„Ä r LONDON MANCHESTER August 25, 1944 Electrical Review 11 RECOGNIZED STANDARDS OF EXCE JWB* «i^ “D' rcciW- * •- br„,SH StAHOM«5 s p e c »f»cat ‘° FERRANTI I»TD.> H o l l in wood, Lancs. Louicm o $ « k«n> Hi»» fa***»«?, w.cj. August 25, 1944 12 E le c t r ic a l R e v ie w V1SKR/NGS cl os e - UPS • • N 0 . I FIXING Observe ! A “ Y1SKREVGS ” Cable marker is taken from the jar. It is slipped over the cable. It shrinks. It’s tight. Is that all ? Absolutely! No machine .... no skill required .... no failures. No wonder the “ YISKR1NGS ” method is so widely specified. HQ TOOLS REQUIRED • INDELIBLY PRINTED N O RUBBER USED • SELF FIXING BY SHRINKAGE IMPERISHABLE, IMPERVIOUS TO • DO NOT INCREASE DIAMETER OILS AND PETROLFUM OF CABLE CABLE MARKERS VISCOSE DEVELOPMENT CO. LTD. Woldham Road, Bromley, Kent. ’Phone : Ravensbourne 2641 August 25, 1944 E l e c tr ic a l R eview 13 for High-Class SWITCHGEAR and STARTING GEAR w i t h TH r e l I a b Î u t y ° F n e g l i g i b l e maintenance costs . Specify P1017 “ ERSKINE HEAP” W E A R E SPECIALISTS In large and small switchgear also small and P I 01 3 large starti ng gear, and our engineers are always at your service with helpful suggestions based upon our 39 years’ experience in all types of GEAR for all classes of industry.