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Aviation History
1936
1936 - 0282.PDF
126 FLIGHT. JANUARY 30, 1936. A feature of the Marconi display on Stand 45 is this Type DFG10 airport receiving equipment for D/F. and similar work. Chloride Electrical Storage Co., Ltd., 137, Victoria Street, London, S.W.16. (Stand No. 29) .—The " Keepalite " emergency lighting system provides in stantly-and automatically a source of electric Kght when the main supply fails, and the above company is exhibiting equipment designed to supply an emergency load of 1,500 watts for one hour. Although the stand-by storage battery provides only D.C., which is, if used directly, unsuitable for boundary lights and .Neon beacons, it can supply the necessary A.C. in emergency by use of a small rotary converter which starts automatically the instant the mains fail. In addition, there are various batteries and torches and a Type C portable pro jector. Clarke, Chapman and Co., Ltd., Vic toria Works, Gateshead, Co. of Durham (Stand No. 10).—A floodlight, beacon, obstruction lights, boundary light, illu minated wind direction indicator, and sland-by lighting equipment for aero dromes, will all be shown on the stand of this company. In addition to these items,, Clarke, Chapman and Co. manu facture all classes of rotating searchlight beacons, ceiling lights, generating plants, switchboards, and mobile flood lighting equipment. Troughton and Young, Ltd., 143, Knightsbridge, London, S.W.I (Stand No. 58).-—The exhibit of this company, which specialises in lighting, heating and power installations, refrigeration, radio, etc., is extremely simple, taking the form of a model of an aircraft fac tory designed by Mr. E. A. D. Tanner, A.K.I.B.A., for Godwins (Estate Developments), Ltd. Troughton and Young, incidentally, are the electrical contractors to the new Gatwick airport. The General Electric Co., Ltd., Mag net House, Kingsway, London, W.C.2. —Most of the lighting devices for night living at Gatwick aerodrome have been supplied by The General Electric Co., Ltd., which has fitted out many of the principal aerodromes in this country, as well as on the Empire routes, in the main, the lighting equipment at Gatwick is similar to that installed by the Company at Croydon, and comprises a G.E.C. Neon beacon and beacon tower, wind indicator, boundary and obstruc tion lights and poles, cables, switch r gear and controlling apparatus and Osram lamps. Tannoy Products, Canterbury Grove, London, S.E.27.—Some interesting loud speaker equipment for transmitting direc tions in the booking halls of aerodromes and instructions to the ground staff, have been developed by this company. •It has been installed in the booking hall at Croydon, and some notable develop ments are imminent. Radio Gambrells, Rowse and Snoaden, Ltd., 3, St. James's Square, London, S.W.I. (Stand No. 27.)—For aero- The Type MWO.5C ground transmitter, with remote con trol, which is being shown by Radio Transmission Equipment Ltd. on Stand 25 drome use this company is producing a variety of radio installations, and of these will be exhibiting the Type 581 transmitter, which has an anode rating of I k\V., and covers medium and short wavebands as required, using either C.W. or I.C.W. telegraphy or tele phony with rapid change-over between systems. Other standard items of G.R.S. equipment range from i kW. mobile stations to 3 kW. installations. All transmitters can be arranged for remote operation over a land line. Marconi's Wireless Telegraphy Co., Ltd., Electra House, Victoria Embank ment, London, W.C.2. (Stand No. 44.) —Over 90 per cent, of British civil aero dromes are fitted with installations by this pioneer firm. The apparatus on show is an aerodrome receiver, Type DFG10, designed for use either with the Marconi-Adcock anti-night-error aerial system or with loop aerials. Included in the Marconi range is a new ultra short wave, or so-called " blind approach beacon apparatus, enabling aircraft to approach aerodromes with confidence when visibility is low. Marconi mobile stations are also avail able. Radio Transmission Equipment, Ltd., Ill, Charing Cross Road, London, W.C.2. (Stand No. 25.)—An aero drome transmitter, Type MWO.5C, and a direction-finding receiver, ' Type 0813, together with direction-finding loop aerials and transmitter remote con trol unit, will be found on the stand of this company. The MWO.5C trans mitter is of the medium-wave low-power type for operation on telegraphy °r telephony, and is intended for com munication with aircraft over an area of 50 to 60 miles for local control during fog.
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