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Aviation History
1957
1957 - 0452.PDF
454 THE INDUSTRY . .'", FLIGHT, 5 April 1957 ventional silicone rubber exhibited swelling, those made of thenew material retained their dimensional character. This solvent-resistant silicone rubber, Silastic LS-53, is nowavailable from Midland Silicones, Ltd., 19 Upper Brook Street, London, W.I; it was developed by the company's Americanassociates, Dow Corning Corporation, in conjunction with the materials laboratory of the Wright Air Development Center. Before the demonstration, Mr. P. C. Servais (of the DowCorning Corporation) and Dr. Ivor Riley, manager of the silicone rubber section of Midland Silicones' technical service department,presented a joint paper on recent developments in silicone rubber. The Graviner-Fenwal Agreement AS briefly recorded last week, an agreement involving broad• cross-licensing of patents as well as a full interchange of technical and manufacturing information has been entered intoby the Graviner Manufacturing Co., Ltd., and Fenwal Inc., of Ashland, Mass. Under this agreement the two firms permit eachother to manufacture and sell their proprietary products within their respective marketing areas. Graviner products, as is wellknown, include fire detection systems (including "Firewire"), automatic high-rate discharge bottles, inertia and crash switches,and explosion-protection equipment. In the U.S., Fenwal have for a number of years been a majorsupplier of fire-and-overheat detectors and temperature controls to the aviation industry. Among their best-known products areseveral hundred models of thermostats and overheat detectors based on their patented Thermoswitch differential-expansion prin-ciple; jet engine thermocouples and harnesses; and thermistor- actuated temperature controllers. The agreement also calls for full interchange of design, technicaland manufacturing information, except for equipment covered by security regulations.As an immediate consequence of the new arrangement, Graviner will become a domestic source of supply for Fenwal equipmentto British and other airlines which operate American-built aircraft, the majority of which carry Fenwal detectors of some type. Simi-larly, Fenwal will be able to furnish U.S. airlines with Graviner equipment for British-built aircraft, such as the Viscounts nowbeing operated in the U.S. and Canada. Plessey Nucleonics Appointment The Plessey Co., Ltd., announce that Dr. Denis Taylor, PhJ)., M.Sc, B.Sc, Head of the Elec- tronics and Instrument Division at the Atomic Energy Research Establishment, Harwell, has been appointed a director and general manager of Plessey Nucleonics, Ltd. In addition he will become research executive of the Plessey aircraft and electronics group and will be responsible for the co- ordination of the company's nuclear programme. Recognized today as one of the world's lead- ing authorities on nuclear instru- mentation, Dr. Taylor was engaged during and after the war on radar , development work. Mr. A. J. Brant regret to record that Mr. Albert J. Brant, A.F.R.Ae.S.,M.S.L.A.E., who for many years was service manager of the de Havilland Aircraft Co., Ltd., and who retired at the end ofApril 1956, died on March 24, following a sudden illness. He was 62 years old. Mr. Brant was an original member of the staff of the com-pany when it was formed at Stag Lane Aerodrome in 1920, and previously had for six years been one of the de Havilland teamat the Aircraft Manufacturing Co., Ltd., Hendon. He leaves a widow and a married daughter. Helicopter Sales Directorship ; ^ 'T'HE managing director of Helicopter Sales, Ltd., Kings Lang-•*• ley, Herts, announces that Mr, I. A. F. Donnelly, who has been acting as general manager of the company since April 1956,is now appointed an alternate director. Mr. Donnelly, a mechanical engineer who served with theR.A.F., was formerly engaged in the development and marketing of electro-mechanical appliances. He was the first pupil toobtain a helicopter rating endorsement on the initial course of Mr. I. A. F. Donnelly (see "Helicopter Sales Directorship"). helicopter training at Air Service Training, Ltd., Hamble, towhom Helicopter Sales, Ltd., had previously supplied Hiller 12Bs. Helicopter Sales state that they have been responsible forhelicopter orders exceeding half a million pounds in gross value. Westland, Sikorsky and Hiller aircraft sold by them have beenoperating in New Guinea, Borneo, Pakistan, Sudan, Switzerland, South Africa, Ceylon, Persian Gulf, Nigeria, British Cameroons,Jamaica and Yugoslavia. IN BRIEF Tecalemit, Ltd., announce that as a result of the demand fortheir new range of standard air compressors they have decided to concentrate on the production of this equipment and todiscontinue manufacture of the earlier type. * * * Ransome and Maries Bearing Co., Ltd., wish to stress thatthe telephone number of their branch office in St. Paul's House, St. Paul's Street, Leeds, is 32094/5 and not—as formerly whenthey were in Norwich Union Buildings—27133. * * * In last week's description of the Rollason mobile de-icing plantit should have been made clear that the particular equipment illustrated was that developed for the M.o.S.* * * Three new floor-cleaning machines, powered by Exide tractionbatteries, have been introduced by Diamond Motors (Wolver- hampton), Ltd., Upper Villiers Street, Wolverhampton. Themachines—-known as the Mechocleen range—are a dry scrubber/ polisher, a wet/dry scrubber/polisher, and a dryer. * * * From Claude Lyons, Ltd., Stabilizer Division, Ware Road,Hoddesdon, Herts, comes a leaflet describing their automatic tap changer, designed to overcome the difficulties commonly associ-ated with mains-supply fluctuations in electronic equipment. Operated by an electronic senser unit, the Claude Lyons A.T.C.is stated to keep its output voltage within ± 5 per cent of the declared value, even with input fluctuations as great as —20 percent to +10 per cent. * * * Teddington Aircraft Controls, Ltd., have closed their Londonoffice at 51 Brompton Road, Knightsbridge, S.W.3. The technical liaison staff has transferred to the company's Reading office atCheapside Chambers, Cheapside, Reading, Berks (tcl. Reading 3074). Another change in location is that as from the end of Marchthe advertising department was due to be moved from Hounslow to die company's Merdiyr Tydfil factory, where it will be underthe control of Mr. F. C. Batten, the publications manager. The "Talurit" safety sling consists of a steel rope strop on which are threaded rect- angular rubber pads designed both to provide a non-slip grip and to prevent damage to the article being hoisted. The makers are CableCovers, Ltd., "Talurit" Division, St. Stephen's House, Westmin- ster, London, S.W.I.
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