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Aviation History
1921
1921 - 0516.PDF
JULY 28_ 1921 THE Board of Trade, Department of Overseas Trade,states that His Majesty's Trade Commissioner at Toronto (Mr. F. W. Field) has received an enquiry for catalogues andprice lists dealing with aircraft standard parts and aeronau- tical instruments. It is not stated whether the enquirercontemplates the purchase of standard parts and instruments immediately, but as he has asked for quotations from UnitedKingdom firms for other aeronautical equipment, there seems to be a reasonable prospect of a demand occurring for thegoods in question. The name and address of the enquirer will be furnished to United Kingdom manufacturers and exporterson application to the Board of Trade Overseas Department, 35, Old Queen Street, S.W. 1. AMONG " those who know " many flattering remarks weremade at Hendon on the day of the Aerial Derby concerning the way in which the Wolseley-Vipers in the S.E. 5's per-formed. Not only did the five engines in the 'Varsity race run excellently, but one of them, the engine fitted in theS.E. 5A No. 30, which was leading during the 'Varsity race, was used again by Ortweiler in the Aerial Derby, in which,but for an accidental omission by the pilot of rounding the pylon in proper fashion, it would have been first in the handicap.This performance is all the more creditable inasmuch as the engines were surplus stock, turned out by the Wolseleyfactory more than two years ago, and were taken from store and put into service after a brief tuning up in the field. Notonly does this fact speak well for the engines as turned out by Wolseley's originally, but it shows in what excellentcondition is the material—machines as well as engines—held in stock and sold by the Aircraft Disposal Company, fromwhom the S.E. 5 A's were obtained shortly before the race. ANOTHER tribute to the reliability and efficiency of theBritish magneto was afforded in the Aerial Derby, the B.T.H. magneto being fitted to the " Mars I " with which Mr. Jameswon both the Aerial Derby and the handicap ; the Bristol Bullet with which Mr. Uwins came in second ; the " S.E.5a "with which Flight-Lieut. Longton secured third place in the Derby and second in the handicap ; and the Bristol Tourerwhich, piloted by Mr. A. S. Butler, ran into third place in the handicap. It may also be recalled that the machines gainingfirst and second places in 1919 and 1920 were also equipped with B.T.H. magnetos. DOPING THE WINNER IN order to reassure those who might, from above title, jumpto the conclusion that the winner of the Aerial Derby owes his or its (according to whether James or the Napier-enginedMars I is counted the winner) success to partaking of liquid stimulants, we hasten to explain that the present referenceto " dope " does not deal with cocaine, picric acid, ether, or similar " pick-me-ups " for man or engine. It merelyrefers to a much less sensational but far more useful and lasting dope, guaranteed to make the aeroplane (not the pilot)" as tight as a drum." In other words, to " Emaillite " the well-known British aeroplane dope. It will easily be realised that for a machine like the Mars I,flying as it does at over 170 m.p.h., the tautness of the fabric and the smoothness of the surfaces is of the very greatestimportance, every ounce of resistance counting. " Emaillite " has, ever since its first introduction many years ago, alwayshad a reputation for pulling up the fabric excellently, and the registered trade mark, with the wording " as tight as adrum," is no idle boast. It is therefore not surprising to learn that the Mars I was doped with the Emaillite dopingscheme " X," which was introduced by the firm immediately after the War, and which has become very popular. This scheme embodies the highest grade acetyl cellulosedope (made to the company's proprietary composition and containing the many improvements effected as a result ofthe very extensive technical work carried out by the company during the War) and the greatly improved pigmented protec-tive covering of the oil-varnish type, of which the company was the originator during the War. We might add that inthe years since the War this pigmented covering-has, we understand, been improved and perfected at the firm's newvarnish works at Brentfield Road, Stonebridge Park, where all these compositions are completely manufactured. Inthe case of the Mars I the pigment is aluminium, the silver- like gleam of which helps in no small degree in lending to themachine its pleasing appearance, as well as serving the more directly useful function of protecting the fabric against theacti on of the sun. COMPANY MATTERS Fellows MagnetoTHE net profit for the year ended December 31 was ^31,960 (against ^22,644 in the previous year). Interim dividendswere paid on the preferred and ordinary shares for the first half of the year, the distribvition on the latter being at the rateof 25 per cent, per annum. In view of the necessity for keep- ing sufficient funds available for immediate wants and forfuture development, the board do not propose to make any further distribution of dividends, at present, although theprofit is sufficient to warrant the same being paid. It is therefore proposed that the balance available of ^24,332 becartied forward. Tfee total dividend for 1919 was 25 per cent. PUBLICATION RECEIVEDThe Master of Man. By Sir Hall Caine. London : Wm. Heinemann. Price 6s. net. Handboek voor Luchttoerisme. Koninklijke NederlandscheVereeniging voor Luchtvaart, Heerengracht 520, Amsterdam, Holland. Technical Note No. 58. Absolute Coefficients and the Graphical Representation of Aerofoil Characteristics. National AdvisoryCommittee for Aeronatics, Navy Building, Washington, D.C., U.S.A. Technical Note No. 46. Theory of the Ideal Windmill. By Wilhelm Hoff. National Advisory Committee for Aeronautics, Navy Building, Washington, D.C., U.S.A. gj jg % m AERONAUTICAL PATENT SPECIFICATIONS Abbreviations : cyl. — cylinder ; I.C. ™ internal combustion; m. ™ motors The numbers In brackets are those under which the Specifications will be printed and abridged, etc. APPLIED FOR IN 1914 Published July 26th, 1921 23,827. R. C. MOTTE. Aeroplane and seaplane bodies, fuselages or floats. APPLIED FOR IN 1917 Published July 28th, 1921 13,042. H. E. WIMPERIS and J. K. WELLS. Sighting devices. (165,455.) APPLIED FOR IN 1930Published July 21, 1921 8,033. COIR TYRE CO., LTD., and G. D. ROSE Steering-wheels. (165,173.)8,176. A. J. ELLIOTT. Aerial photography. (165,181.) 8,«o6. W. CHILTON and BRUSH ELECTRICAL ENGINEERING CO., LTD.Driving of aircraft. (165,184.) 8,601. Soc. DES MOTEURS SALM^ON (Systeme Canton - Unni). Valvegear. (140,783.) 8,724. A. E. GOTT. Gyro-compasses. (165,221.)8,729. J. D. DENSON. Means for stopping way on aircraft. (165,223.) 8,732. R. W. BIRKETT. Regenerative counter-propellers for aerial vessels,etc. (165,224.) 9,641. DEUTSCHE FLUGZEUG-WERKE GES. Aircraft with closed cabin. (141,347.)10,657. T. H. PARKER. Rotary motors. (165,264.) 12,186. TEKNISKE FORSOGSAKTIESELSKAB. Flying-machines. (157,053.)14,663. C. N. BAUDIN. Auxiliary propelling attachments. (165,310.) 20,397. ZEPPELIN WERKE GES. Floats. (148,443.) i If you require anything pertaining to aviation, study ! "FLIGHT'S" Buyers' Guide and Trade Directory, j which appears in our advertisement pages each i week (see pages xv and xvi). i NOTICE TO ADVERTISERS All Advertisement Copy and Blocks must be delivered at the Offices of "FLIGHT," 36, Great Queen Street, Kingsway, W.C. 2, not later than 12 o'clock on Saturday in each week for the following week's issue. FLIGHT The Aircraft Engineer and Airships 36, GREAT QUEEN STREET, KINGSWAY, W.C. 2. Telegraphic address: Truditur, Westcent, London. Telephone: Gerrard 1828. SUBSCRIPTION RATES " FLIGHT" will be forwarded, post free, at the following rates :— UNITED KINGDOM s. d. 3 Months, Post Free.... 7 7 6 „ „ .... 15 2 12 " „ 30 4 These rates are subject to any alteration found necessar; under abnormal conditions and to increases in postage rates. * European subscriptions must be remitted in British currency Cheques and Post Office Orders should be made payable to lh- Proprietors of "FLIGHT," 36, Great Queen Street, Kingsway. W.C. 2, and crossed London County and Westminster Bank, otherwise no responsibility will be accepted. ABROAD* s. d. 3 Months, Post Free.... 8 3 6 ,. 16 t 12 „ 33 o 516
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