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326 AIRCRAF T ENGINEERING December, 1931 Hig h Duties Alloys—Pobjoy Engine Components—Light Castings—Sheet-Metal Screws—Technical Journals ROLLS-ROYC E AND HIDUMINIUM pierce a hole of the correct size in the material Humidit y and other Factors upon the Static Lift Hig h Duty Alloys, Ltd., are responsible for a an d then screw in the screw either by hand or of Airships." considerable portion of th e material in Aluminium power. (The R.38 Memorial Prize is awarded for the alloy used in th e Rolls-Royce Kestrel and Buzzard Th e A type screw is tapered, and is intended best paper received by the Society on some engines. They produce th e Y-alloy for th e forgings for joining light gauges of sheet metal, and metal subject of a technical nature in the science of from which the pistons are made, and also the t o wood, while the Z typ e is parallel and suitable aeronautics , preference being given to papers material for castings for the cylinder blocks, of th e for material of heavier gauges. which relate to airships.) productio n of which Mr. Handasyde speaks in such Th e Busk Memorial Prize to Mr. A. Gouge, F.R.Ae.S. , for his pape r on "Som e Problems in th e high terms of praise. This is an alloy known as TH E LIGHT-METAL INDUSTRY Design of Sea-going Aircraft." Hiduminiu m R.R. The Intelligence Department of the British (The Busk Memorial Prize is offered annually Aluminium Co. was formed to act as a Central for the best paper received by the Society on HELPIN G IN THE POBJO Y ENGINE Clearance House and Reference Bureau for the some subject of a technical nature in connection Th e Pobjoy, the latest British engine which has Ligh t Metal Industry. It collects information wit h aeroplanes (including seaplanes). sprung into fame as a result of Mr. Butler's recent from all sources on matters appertaining to the Th e Pilcher Memorial Prize to Mr. S. G. Hooker, production and working of light metals and alloys "record " flight to Australia in a Comper Swift, is Studen t of th e Society, for his paper on "Th e Com (designated under the generic term of light metals) intimatel y connected with the Mollart Engineering pressibility Effects in High-Speed Air Flow." an d their utilisation in industry throughout the Co., of Albany Works, Thames Ditton, Surrey. (The Pilcher Memorial Prize is awarded to a world, all such information being filed for future Over 180 of the component parts are made by this Studen t of the Society for the best paper on an y reference under a comprehensive system of in firm, which also designed the crankcase jigs, subject dealing with aeroplanes.) telligence files. fixtures and gauges for the production of this A t the conclusion of the presentation of the engine. The Mollart Company also evolved a Two journals are issued, Light Metals Research Society's awards, the Daniel Guggenheim Gold special honing machine for use in th e cylinder bores an d Aluminium Broadcast, in alternate weeks, in Medal for th e yea r 1931 wa s presente d to Dr. F . W. which is now being developed for larger engines. which the more important part of this data is Lanchester , LL.D., F.R.S., Hon.F.R.Ae.S., for his summarised and commented on. The former con contribution s to the fundamental theory of aero NON-FERROU S METAL CASTINGS tain s data on th e production and working of light dynamics . The presentation was made by Mr. Th e Fozel Castings Co., Ltd., Francis Street, metals , and goes to production engineers and Griffith Brewer, F.R.Ae.S. (a membe r of th e Council Coventry, have attained a prominent position research workers within the industry, while the of the Royal Aeronautical Society) in his capacity amon g makers of non-ferrous castings, supplying latte r is devoted to applications of light metals a s English representative of th e Daniel Guggenheim Sir W. G. Armstrong-Whitworth Aircraft, Ltd., in industry and goes to development engineers and Medal Board of Award. an d Armstrong Siddeley Motors, Ltd., amon g other sales offices. A recent issue of Light Metals Research (I t will be recalled that Dr. A. H. Davis also leading manufacturers. Crankcases to 2 L.5 and contain s a summary of th e article, "Th e Japanese contribute d an original article to AIRCRAFT EN D.T.D . 131 and 133 specifications can be supplied Research Institute," published in th e October issue GINEERING , Vol. II, November, 1930, p. 273, on in all types and sizes, and are regularly made for of AIRCRAFT ENGINEERING, pages 241-243. "Th e Causes of Noise in Aircraft," and Mr. Gouge Leopard , Jaguar, Mongoose, Genet, Cheetah, Copies may be consulted at the offices of the a n original article to AIRCRAFT ENGINEERING, Vol. Panther , and Lynx engines. The firm specialises in Science Museum, Patent Office, the Institute of II , August, 1930, p . 202, on "Th e Design of Sea aluminium cylinder heads, front and rear crankcase Metals, an d th e Institution of Chemical Engineers. planes."—EDITOR. ) covers, induction cases, exhaust manifolds, etc. Special attention is paid to manganese and alumin PETRO L RESISTING JOINTS ium bronzes, while th e following are also product s of Jame s Walker and Co., Ltd . of Lion Works, thi s firm: Gunmetal B. 2, phosphor bronze B. 8, Woking, are well known for their "Golden bras s B. 14, and aluminium 2 L. 8 and 3 L. 11 . Walkerite " asbestos sheet jointing and "Lion " Th e works, which cover six acres, include up-to- rings for engine pumps, used in the S.6. and dat e foundries with laboratories, and ar e thoroughly S.6.B. Schneider Trophy Seaplanes. equipped for all classes of motor-car and aircraft Th e firm has lately introduced "Gaskoid," castings under the control of Mr. Arthu r Saunders, a new oil and petrol resisting sheet jointing, an managin g director. orde r for which has just been placed by Rolls- Royce, Ltd. after severe tests. SELF-TAPPIN G SHEET-METAL SCREWS Buck & Hickman, Ltd., of Whitechapel Road, ROYA L AERONAUTICAL SOCIETY AWARDS London, E.1, announc e that they are distributors Immediatel y before the reading of the Wilbur for the Parker-Kalon Corporation of New York, Wrigh t Memorial Lecture on "The Develop U.S.A., well known as originators of the self- men t of Aircraft Manufacture," by Mr. Glenn tappin g drivescrew, who have now developed L. Martin, on September 16, 1931, the following two new types of hardened screw which have award s of the Royal Aeronautical Society were advantage s for making fastenings to sheet metal presente d by th e President, Mr. C. R. Fairey:— an d for other assembly work. Th e Simms Gold Medal to Dr. A. H. Davis for Th e new products, styled A and Z types re his paper on "Noise." spectively, are not driven in with a hammer as (The Simms Gold Medal is awarde d for th e best is the original, or U type, screw, but are turned pape r in any year before the Society on any int o position with a screwdriver, cutting their science allied to aeronautics, for example, own thread as they penetrate the metal. Meteorology, Wireless Telegraphy, Instruments, The threads are similar to those of the ordinary etc.). wood screw, and the y enable th e screws to be turned Th e Taylor Gold Medal to Squadron Leader into metal, such as brass, steel, iron, aluminium, W . R. D. Acland, D.F.C., A.F.C., for his paper on an d die castings , etc., jus t as a wood screw is turne d "Dec k Flying." into wood, without stripping or otherwise injuring (The Taylor Gold Medal is awarded for the thei r own hardened thread or the thread they mos t valuable paper submitted or rea d during th e mak e in th e material. previous session before the Society by a member Fastenings that result from their use are more or non-member.) efficient than those obtained with machine screws, Th e Silver Medal to Mr. H. C. H. Townend, for they remain secure under intense vibration B.Sc.(Eng.), A.F.R.Ae.S., for his work on the an d the most severe service conditions. Townen d Ring. Self-tapping screws offer the easiest, cheapest, an d quickest way of joining an d making fastenings (The Silver Medal is awarde d for some advance t o sheet metal tha t has yet been evolved. They in aeronautical design.) can be removed when necessary and used over Th e R.38 Memorial Prize between Professor R. V. again in the same holes without impairing the Southwell, M.A., F.R.S., F.R.Ae.S., and Miss L. strengt h of the fastenings. Chitty , A.F.R.Ae.S., for their paper on "Some Tappin g operations with all th e usual auxiliaries Problem s of Primary Stress Determination in Air ar e dispensed with, and all that is necessary to shi p Hulls, " an d Mr . W . G. Bird , M.A., A.F.R.Ae.S. , secure a perfect fastening is to drill, punch, or for his paper on "Th e Influence of Atmospheric
Aircraft Engineering and Aerospace Technology – Emerald Publishing
Published: Dec 1, 1931
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