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Aviation History
1934
1934 - 0856.PDF
IN- AUGUST 16, 1934. Jin. ball to one 01 2$ in., and naturally have a very wide application in all other fields of engineering, apart from the work for which they are being so successfully used in the Autogiro. For example, they have already been applied to rnulti-spindle drilling machines, as used by one of our largest motor car manufacturers, for drilling the holes in a cylinder block in one operation. Previous joints having given a lot of trouble, the M.E. was tried, and its life was immeasur- ably greater than the others. THE TURNER RING "DUBBER is the only known material which has the natural -*••• property of absorbing energy. The "Turner Ring" is a convenient and efficient form of braided rubber shock absorber which is used on several well-known types of aircraft, although there seems to be an impression these days that this type of shock absorber is but a relic of the early days of flying. Various examples of Turner Shock Absorber Rings. Two types of ring are made, one to carry tensile loads andthe other to take compression loads. Both are made of the best Para rubber thread ^" square. The accompanying illus-tration shows various applications of these rings to shock absorbers. Among other purposes, the "Turner Ring" is now beingemployed to operate levers and in the construction of flexible couplings for the transmission of power. These rings are manufactured by Luke Turner and Co.,Ltd.. Deacon Street, Leicester, the London representative being Industrial Rubber Manufacturers, Ltd., 191, Tottenham CourtRoad, W.i. On the Continent the "Turner Ring" is manu- factured by La Fleche Freres, 69, Rue Reamur, Paris, andVillard Doron Fils et Cie, 13, Rue Berthelot, Saint Etienne. HUNDREDS OF TAIL WHEELS T^ROM very modest beginnings Mr. G. H. Dowty has •*• gradually built up a very flourishing business at Grosvenor Place South, Cheltenham. We need hardly remind our readers that many years ago Mr. Dowty began to specialise in the design of aircraft undercarriages, and when he estab- lished his firm under the title Aircraft Components, Ltd., he began by introducing an ingenious telescopic " leg," the out- standing feature of which was that coil springs, althoughplaced end to end, worked in parallel. The result was a telescopic tube of very small overall diameter and low airdrag. Since those early days Mr. Dowty has brought out improvements from time to time, and no better proof of theesteem in which his undercarriage "legs" are held could be found than the fact that it is now quite a common sayingamong flying people: "Oh. you just pull the stick back and trust in Mr. Dowty." Apart from telescopic struts, Mr. Dowty has producedinternally sprung main wheels, which can be carried on canti- lever struts and thus save drag. Tail wheels of various typeshave also been produced, and it is interesting to record that no less than nineteen squadrons of the R.A.F. are having, orhave had, their " Bulldogs " fitted with Dowty tail wheels. The same type of tail wheel is fitted as standard on the Gloster'Gauntlet" and the Hawker "Demon." With so many aircraft designers turning their attention toretractable undercarriages, we shall not be surprised to hear at any moment that Mr. Dowty has brought out a " retract-able leg." TECHNICAL SERVICEF LT. LT. N. COMPER and Mr. F. R. Walker, who have now severed their connection with the Comper Aircraft Co., are starting an aviation business for which there should be a considerable demand. They intend to establish an office from which they will give technical advice to those who want it about aeroplanes and matters connected with flying. A pro- spective purchaser will be able to get from them sound advice about the aeroplanes which will best suit his specific work, and will thereby be saved the expense of experimentation and needless consultations with manufacturers who have not got suitable machines. INSURANCE FOR THE MELBOURNE RACELast week we referred to an insurance pool which was being formed to carry the risk for those taking part in the England-Australia Race. The position is now clarified, and we learn that F. W. Jones and Partners, of Croydon, Surrey, are thebrokers who are, so to speak, responsible for the scheme. The participants in the pool, which is in no sense a monopoly, areall those interests which normally carry aviation risks, and include both the outside companies and Lloyds Underwriters.The essence of the scheme would appear to be based on the obvious fact that it is easier to quote cheaper rates for thepilots in a race like this if the majority of the business is shared by one pool. Without such a pool it is doubtfulwhether individual underwriters would consider the risk one which they themselves could carry. <?>• <•> <•> o NEW COMPANIES COMMERCIAL AIR HIRE, LTD. Capita! £500 in fl shares. Objects: To establish, maintain, work and carry on lines of aerial communication by means of aeroplanes, seaplanes, flying boats, airships and other aerial conveyances, between London and Paris, etc. The subscribers (each with one share) are : Rose Roth, 39, The VaJc, Golders Green, N.W.ll, solicitor's clerk. Lilla Walsh, 85, Ferndale Rd., Woodside, S.E.25, solicitor's clerk. The first directors are to be appointed by the subscribers. Solicitors : Kenneth Brown, Baker, Baker, Essex House, Essex St.,W.C2. INCREASE OF CAPITAL PHILLIPS & POWIS AIRCRAFT (READING), LTD. (Reading Aerodrome, Woodley, Berks). The nominal capital has been increased by the addition of £10,000 beyond the registered capital ofr£15,000. The additional capital is divided into 5,000 6 per cent, preference and 5,000 ordinary shares of £1 each. •Q* O -<v- <^* PUBLICATIONS RECEIVED Re"s'tit<tl of Commercial 1 reformation. Series 5. No. 9. February-Mav, 1934. Compiled by the Directorate of Civil Aviation (C.A.%). London : Air Ministry. Kingsway, W.C.2. AERONAUTICAL PATENT SPECIFICATIONS Abbreviations: Cyl. =; cylinder ; i.e. = internal combustion ; m. = motors. (The numbers in brackets are those under which the Specification will be printed and abridged, etc.) APPLIED FOR IN 1932 Published August 16, 1934. 33161. G.H.REID. Gyroscopic indicators for use with aircraft. (413,"]5.) ' _;;/;£ APPLIED FOR IN 1933 '"' Published August 16, 1934. 3674. C. FROBISHER. Airport landing-grounds. (413,773.) 24975. SIEMENS AND HALSKE AKT-GES. Two-stroke internal-combustion lircraft engine having scavenging and supercharging. (413,891.) 34266. W. H. WOOD. Auxiliary lifting means for aeroplanes. (413,948.) APPLIED FOR IN 1934 :.•:•_.•"'.\;' Published August 16, 1934. ' "• 56. M. BIRKIGT. Firearms for use on aircraft. (413,968.) 1563. L.P.R. Co. Aircraft. (413,662.) 4918. DORNIER-METALLBAUTEN GES. AND C. DORNIER. Haudplanes. (413,993.)
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