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June, 1930 AIRCRAFT ENGINEERING 155 Manufacturing the Townen d Ring—Two Hundred Years of Weighin g and Testing Machine Manufacture—German Aviation Subsidies—Bristol Engine Works Th e Townend Ring business affairs of two monthly publications— th e completed component. It would hardly be AIRCRAFT ENGINEERING and AIRWAYS Magazine— possible for organisation to reach a higher pitch of Boulton & Paul, Limited, announce that they an d the annual reference book, WHO'S WHO IN perfection and particular admiration was aroused are the holders of all the Foreign and Dominion BRITISH AVIATION, the 1931 edition of which is by a battery of lathes of all descriptions, suited to patent s covering the device known as th e Townend now in active preparation. th e multitudinous operations of machining. These King, and tha t in addition to the original patents Mr. Dorman commenced his duties with the hav e been evolved by Mr. Whitehead, the produc they have applications pending both in this country Compan y on May 24. tion manager, and show great ingenuity. and abroad for certain important improvements Altogethe r there are 1,700 employees, as com on the original device. pare d with 30 in 1920; and the outpu t of th e works I n addition to this they have entered into an is the equivalen t of 12 engine s a week. The world arrangemen t with the Department of Scientific ENGINE NUMBER outpu t last year, from Filton and foreign factories and Industrial Research whereby, subject to the building under licence, was 1,200 engines. The June issue of " Aircraft right of the Crown to free use of the British and Dominion patents, the y will issue licences for the Engineering " will take the form of Hacksa w Blade Prices use of th e Townen d Ring to British aircraft manu an Engine Number, and a number Th e British Hacksaw Makers' Association has facturers for use on aircraft either for sale in this of articles will be devoted to the brough t out a new price list to replace that first countr y or for export. Under this arrangement subject. Among them will be :— brough t into operation ten year s ago. The ne w list, they will give to all such licensees such technical which is agreed by the American Hacksaw Manu A critical article on the Packard information and assistance as is necessary for the facturers ' Association, is based on a price per lineal "Diesel " engine, illustrated by design and installatio n of ring s of thi s type. inch, for eac h widt h and gauge, an d contain s 61 sizes drawings and special photographs. Boulton & Paul, Limited, are also open to only, the official list of 1919 havin g included 139 consider the granting of licences for the manu An illustrated description of the sizes, many of them redundant. The 61 sizes have facture and use of Townend Rings abroad to Siemens-Halske S.H.20 engine. been unanimously adopted as standar d by all the any responsible applicants. firms manufacturing these goods. A description, illustrated with Extensiv e tests, bot h model and full scale, have now proved that, given a satisfactory installation, drawings and photographs, of the Aluminiu m Foundry Data the Townend Ring is capable of reducing the re British-built version of the 40-h.p. A new edition of this useful little handbook sistance of a radial air-cooled engine to a figure Salmson engine. comes from the British Aluminium Co. Ltd., , of very much lower tha n is possible with any ordinar y An account of the B.M.W. Works. Adelaide House, King William Street, London, typ e of cowling. At the same time the ring does E.C.4. It is divided into three sections. The There will also be an article on no t prejudice cooling or interfere with the accessi first gives details of the physical properties and bility to th e engine to which i t is fitted as do other Aircraft Instrument Design, by composition of various alloys, including aluminium- type s of cowling which claim to produce approxi Major C. J. Stewart. silicon, aluminium-copper, aluminium-copper zinc matel y similar reductions in resistance. an d "Y " alloy, with hints on hea t treatment and I t must, however, be emphasised that to obtain ageing. The second section contains photographs satisfactory results wit h the Townen d Ring the ring of typical castings produced from aluminium alloys, itself mus t b e designed in conjunction wit h th e com- Th e German Industry while the third, on " Shop Practice," gives instruc pletc engine and body combination, and that the Th e German Government has decided on a new tions on Melting, Casting, Hea t Treatment, Machin assistance of a firm with expert knowledge of th e policy of concentrating its assistance to the in ing, etc . characteristic s of the Townend Ring will prove of dustry , and during the coming financial year only Th e same firm forwards a 9-page pamphlet in grea t value to all those who propose to use this th e four following firms will receive subsidies :— loose-leaf form on " Aluminium Working for typ e of cowling Junker s Flugzeugwerke A.G., Dessau. Amateurs, " which should prove useful to light Dornier Metallbauten G.m.b.H., Friedrichs- aeroplane owners. A Bi-centenary hafen. Heinke l Flugzeugwerke G.m.b.H., Warne- Extensiv e preparations are being made to cele R.100 munde . brat e the bi-centenary of Messrs. W. & T. Avery, Ltd. , the Birmingham manufacturers of weighing Bayerische Flugzeugwerke A.G., Augsberg. On May 21 t o 22 R. 100 made a further trial flight and testing appliances. The full programme of These firms will receive orders through the three to test the adjustment s which had been made t o th e oute r cover, in view of the " rippling " that events has no t ye t been completed, but th e Com subsidized organisations : Deutsche Luft Hansa, ha d been noticeable on the earlier flights, and also memoratio n will extend over several days at the Deutsch e Verkehrs Fliegerschule and Deutsche to run in th e Rolls-Royce " Condor " II I B. engines beginning of July. Versuehsanstal t fur Luftfahrt (D.V.L.). which has been fitted in replacement of the original Originating in a small steelyard-maker's shop I t is understood , however, that some of the other II I A. type . On th e airship' s return i t was noticed a t No. 11, Digbeth , Birmingham, opened in 1730 firms are pressing for inclusion in this scheme. from the groun d that there were signs of damag e a t by a Mr. Ford , the business has grown until to-day the extreme tail and it was subsequently stated the firm is know n throughout the world. Institut e of Naval Architects tha t some of the outer cover supports in that Th e presen t range of outpu t from the histori c Soho region had collapsed. The airship was taken into Foundry , acquired by th e firm in 1897, is vas t and Th e Institute of Naval Architects is holding its th e shed for repairs on Ma y 26, having been delayed impressive. Its products are seen all over the Summe r Meeting at Liverpool from July 14-18, b y ba d weather . world, and cover needs affecting all aspects of ou r 1930. Details of the papers to be read, some of lives. Heavy weighing and testing machines, which may be expected to be of interest to readers Ne w All-Metal Airship commercial scales of all descriptions, and delicate of AIRCRAFT ENGINEERING, will be announced Colonel J. A. Paegelow, commandant of Scott balances ; liquid measures, testing apparatus for later . Field, states according to the Times that the U.S. textiles, fabrics, and a hundred other commodities —these are a few examples indicating the com Governmen t propose to construc t a t Scott Field an Electri c Furnaces all-meta l airship with a gas capacity of 3,758,300 prehensive natur e of th e firm's activities. cubic feet of whic h the lengt h would be 542 ft . and Thoug h the firm is celebrating its great age i t L a Compagnie Francaise "Wild-Barfield," th e maximum diameter 119 ft. 6 in., with eight is, nevertheless, identified with the most modern licensees for these electric furnaces in France, 600 h.p . engines. developments, and it is therefore not surprising Switzerland and the Netherlands, have recently to find it intimately connected with aviation. take n extensive new premises a t 110, Avenue du Machines for testing the tru e balance of propellers, General Michel Bizot, Paris, where a full range of AIRCRAF T ENGINEERING for determining the soundness of struts, spars, furnaces will be manufactured. fuselage members, etc., an d also for testing fabrics Copies of the issues for December, 1929, and of all descriptions are amongst its products, and petrol pumps and gauges also come within th e firm's Th e Bristol Engine Works January, 1930, are urgently required. Anyone wide scope. A visit to Bristol was pai d on May 21 to see new having copies of these numbers for sale are asked shops tha t have been opened. An opportunit y was A Staff Appointment afforded for making a complete tour of the works to communicate with the Manager, 6, Norfolk an d study the complete process of production of Mr. Geoffrey Dorman, Advertisement Manager Street, Strand, London, W.C.2. The Manager th e " Jupite r " engine. The most notable feature of The Aeroplane from 1920 t o date, has now re wa s the extreme care and attention to detail and signed his position with that journal to take up will also be glad to hear from readers who may meticulous accuracy of the finish of all parts, the post of Business Manager to Airways Publi have copies of other back numbers for disposal. involving, in many cases, giving a mirror-polish to cations, Ltd . In this capacity he will deal with th e
Aircraft Engineering and Aerospace Technology – Emerald Publishing
Published: Jun 1, 1930
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