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Aviation History
1934
1934 - 0687.PDF
FLIGHT, JULY 5, 1934 Llewellyn Ryland, Ltd.—The stand of this company was most ingeniously arranged. Front and back werefinished with " Rylard " enamel to Specification D.T.D. 62, and the table top—a sneet of duralumin—was finished iri" Ardak" synthetic finish to the same specification. Of particular interest was a wooden panel finished with " Rvlard"varnish, which was put into a glass jar filled with salt"water and sealed, three years ago, by a councillor of the BirminghamCity Council. Also exhibited were aircraft parts in duralumin, steel and wood, finished with " Zilak " cellulose, "Ardak"synthetic finish, " Rylard " varnish and enamel, and " Rylard " stoving enamel. Shell Mex and B.P., Ltd.—Samples of oils and greasesincluding the " Double," " Triple," " Aeroshell," " Spirax worm gear" and "Gear" varieties were shown on thestand of this company. The more important petrols dis- tributed by the company include " Shell," " Shellmex,"" Shell Aviation," " Racing Shell," B.P. " Ethyl," B.P. "Commercial," and B.P. "Aviation." A wide " range ofkerosenes is also marketed by the company. Short Brothers (Rochester and Bedford), Ltd.— An all-metal float designed for the Hawker " Osprey "Fleet Fighter Reconnaissance seaplane was the principal exhibit on this stand. There were also some very attractivecoloured enlargements of the R.24/31, R.6/28, Singapore II flying boats made by the company, and of a Hawker " Hart "seaplane with Short floats supplied to the Esthonian Govern- ment for general purpose work. Silvertown Lubricants, Ltd.—This exhibit took the form of a cascade of Speedolene Aero Oil. This oil waspumped from a base to the top of a number of glass steps, and, from this point flowed back to the base, rotating con-tinuously. The cabinet was illuminated behind the glass steps and the lighting clearly illustrated the oil's clarity. Smith's Aircraft Instruments, Ltd.—Probably the most attractive exhibit on the stand of this firm was theThree Axes British Automatic Control, mounted in such a manner as to permit its use being demonstrated in all threeaxes. This exhibit was particularly interesting as the " third axis '' control was only recently released from the Secret Listand this was the first time that it has been shown to the public. Other features included a complete range of dash-board instruments and panels, Petroflex tubing, Essex fire extinguishers, the new Fraser Nash safety enclosed wing tipflare device, portable altimeter and airspeed testing apparatus, and a new model'' Carter '' centrifuger for oils. Some beautifulsmall scale models of well-known aircraft suitable for use as car mascots helped to make the stand most attractive. Also attracting attention on this stand were products ofHenry Hughes & Son, Ltd., which included a series of aperiodic compasses, especially their new vertical model,the P.6. Besides these, there were the " Holmes " Tele- Compass, " Addison-Luard " course and wind calculators(models " B " and " D ") and navigation instruments of numerous types. That remarkable instrument, the " Wim-peris " course-setting bomb sight, was also there. Other exhibits by the company were a turn and bank indicator,rate of climb indicator, and a recent type of R.A.E. sextant. Incorporated in the display by Smith's Aircraft Instru- ments, Ltd., was a selection of the K.L.G. Company's sparking plugs for all types of aero engines, and a range of the latest pattern wireless screening caps which prevent the ignition system interfering with radio reception. Also on show was a special stand of K.L.G. " Wizard " plugs and an enlarged reproduction of a testimonial received from Imperial Airways concerning their use of these plugs in the engines of their aircraft. Also on this stand were aircraft accessories produced by Siebe, Gorman & CO., Ltd., including oxygen-breath- ing apparatus for high-altitude flying, harness and life-saving belts," and collapsible dinghies, food droppers, and examples of A.S.I, calibrators, altimeter calibrators and bottles for compressed-air starters. J:\ „: v ,•..-, •••:.- Standard Telephones & Cables, Ltd—The smallest set exhibited was a remotely controlled short-wavetransmitter and receiver for use in Fighter Aircraft (type A T R 3) giving communication on short wave telephony.The total weight was less than 70 lb. Also on view was a type A T R 4 transmitter and receiver specially designed foruse on internal air lines. This can be operated by the pilot through remote controls or by a radio operator who hasaccess to the apparatus. The total weight was 78 1b. Com- pleting the exhibit was a type A.T.R.6 high-powered trans-mitter and receiver, combining long and short wave trans- mitter and receiver for use on transcontinental air lines.This was intended to provide telephony and telegraphy on long or short waves in large commercial aircraft where theradio operator had direct access to the apparatus. The weight was approximately 100 lb. J. Stone & Co., Ltd.—Aero engine parts in theform of castings, die-castings, forgings and stampings in non-ferrous alloys, castings and die-castings in " Ceralumin "a new aluminium alloy, and castings and die-castings in Elektron " magnesium alloy were the chief exhibits on thestand of J. Stone & Co., Ltd. The company also manu- factures water-distilling apparatus, pumps and gears, andaircraft rivets and washers in aluminium, duralumin, stainless steel and other materials. Titanine-Emailtite, Ltd.—On the Titanine stand wereexhibited applied specimens of Titanine dopes and finishing varnishes for fabric and plywood in the form of aeroplanewings and fabric, and plywood panels, of which the actual stand was composed. In addition there were metal specimenscoated with Titanine synthetic lacquers illustrating metal protection schemes. The exhibits embraced the standardSilver and " Nivo " finishes employed on Service aircraft, as exemplified by the Air Ministry Approved Titanine DopingSchemes T 2.S, T.4.S, etc., and a special feature was the Titanine " Satin Finish " in a variety of colours for civilaircraft, both on fabric and plywood. Titanine doping mate- rials were employed to coat the entire stand including eventhe lettering on the signboards. Vickers (Aviation), Ltd.—Here was exhibited a com-plete range of Vickers aircraft accessories including sectioned examples of Vickers oleo shock absorbing under-carriagestruts, Vickers-Potts oil coolers, air compressors and pumps. There was a large model illustrating the working of theVickers air operated wheel brakes. Of especial interest to designers was the Vickers-Potts " U " type oil cooler for usein high performance aircraft, the fins of which have a greater effective area, and, at the same time, small aerodynamicdrag than the old model. A series of large scale models of Vickers-Supermarine aircraft, including the " Scapa " flyingboat and the " Vildebeest" torpedo bomber and some excellent drawings and photographs completed the stand. C. C. Wakefield & Co., Lid.—Various grades ofCastrol aviation oils which are available in every part of the world were exhibited and photographs were displayed illus-trating the first flight over Mount Everest, the world's longest non-stop flight and the world's fastest flight, each ofwhich was achieved with the aid of Castrol. An excellently produced booklet entitled " 1933 Achievements " recordednotable achievements aided by products of the company. WelllVOrthy, Ltd.—It is claimed that there are nopiston rings in the world of such strength and elasticity as the " Thermocrom " rings made by Well worthy, Ltd. Onthe company's stand were shown some " special purpose " rings manufactured from this material. There were alsocompression and scraper rings manufactured from centri- fugally cast material to Air Ministry Specification 4K6 bythe Gray and Howlett patent process, which ensures perfect circularity and equal radial pressure. Petrol priming pumpswere also shown. The Williamson Manufacturing Co., Ltd.— An " Eagle IV " aircraft camera with Williamson all-metal louvre shutter and a magazine capacity of more than 200 exposures was the main feature of the Williamson stand.In this camera the magazines are easily interchanged in the air without interrupting the sequence of exposures. Theelectric driving motor is housed in the body of the camera itself. Also on show was the G.22 camera gun designed foraerial combat practice in this model results can be quickly and easily processed by daylight developing tanks. The gunemploys a special telephoto lens in conjunction with the Williamson louvre shutter and weighs only 10 lb. Anotherexhibit of great interest was the " Eagle " stereo-plotter which enables true-to-scale line maps of hilly country to bequickly and simply drawn from pairs of stereoscopic qir photographs. Contour lines may be inserted and heightsread simultaneously from a vernier scale. 689
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