FlightGlobal.com
Home
Premium
Archive
Video
Images
Forum
Atlas
Blogs
Jobs
Shop
RSS
Email Newsletters
You are in:
Home
Aviation History
1915
1915 - 0292.PDF
(/ycHT) shape shown at Fig. A. Obtain two pieces of thin tin if in. long and £ of an inch wide. Fold these over at the centre as shown, and punch dents. Now cut off two pieces of ^ in. diameter mild steel wire or cold drawn brass wire, 6 ins. long for the shafts. First bend as at Fig. i. Then spring in the propeller blank. Hold in position, preferably between the jaws of a small iron vice, lead clamped, as shown by dotted lines at Fig. I. Now with pliers pull down end B to right angles. Figs. 2 and 3. Then pull it once around the shaft, or twice if preferred, cut off end B close to shaft and file off level. Close up with pliers, and run a little solder on each side, which fixes the shafts firm. Cut off the shafts about 2| ins. from the spiral, this will allow sufficient length to form the rubber hook end at a later stage, before or after being placed in the propeller bearing fixed on machine. To steam twist the blades dip them into hot water and hold over a candle flame or the steam from a kettle spout. Let the heat of the candle affect the hollow side or the steam the rounded side of each blade, hold the blade in the centre with one hand and twist with the other gradually from near the centre to the tip of the blade. The greatest twisting effort is required near the centre. After obtaining about one-half of the desired twist, turn around and work upon the other half of the blade, again studying your end sketch and twisting as before. Now lay this upon one side and go to work upon the other propeller, which must be twisted in the opposite direction (see end view). See that the entering edges of the blades are on the shaft. Having twisted both blades about half the necessary amount, lay them together end to end, and satisfy yourself that they are correct so far, then leave them for a day or two. A second steaming process will complete them ; regulate by further steaming any difference detected later in the pitch. When thoroughly dry give three coats of oak or shellac varnish. [Re shellac vainish, we have had considerable experience with this, and cannot recommend it. It is now being given up even in electrical work ; it is hygroscopic, and deteriorates in course of time. A bentwood propeller varnished with it would not, in our opinion, retain its shape ; a good boat varnish would be much better.] ® & ® ® Canadians Anxious to Join Flying Corps. ACCORDING to a Times correspondent at Toronto there has been a rush of recruits for the Flying Services, a call for which was only given a few days ago. Appli cations were received from all parts of the Dominions, and a number of Americans also volunteered. About the Hall Flying School. A MTTLE brochure, giving a brief outline of the history of the Hall Flying School at Hendon, and giving a short explanation of the methods of tuition followed there, has just been issued. It is splendidly illustrated with a number of photographs. Those who are thinking of taking up aviation, and are considering which school to join, would do well to secure a copy. A postcard to the Hall Flying School, The London Aerodrome, Hendon, N.W., will bring one by return. APRIL 23, 1^15. How to Know German Aircraft. THE publicity matter of the General Electric Co. is always smart and up to date, and one of the best examples is a little pamphlet which has just been got out in the interests of the " Freezor " electric fans. Two pages are devoted to illustrations and notes on the air ships and aeroplanes of Great Britain and Germany. The silhouettes are accurately drawn and should prove useful as a guide in distinguishing friendly from hostile aircraft. Doubtless any of our readers could obtain a copy by applying to the General Electric Co., Ltd., 67, Queen Victoria Street, London, E.C. ® ® ® ® THE AERONAUTICAL SOCIETY OF GREAT BRITAIN. Official Notices. NOTICE is hereby given that the annual general meeting of the Aeronautical Society of Great Britain will be held on Thursday, May 20th, 1915, at 7.45 p.m., at the Royal Society of Arts, John Street, Adelphi, W.C. AGENDA. To receive and approve the Report of the Council on the state of the Society, and the balance sheet of Aerial Science, Limited. To discuss and determine such questions as may be proposed by the voters relating to the affairs of the Society, and to fill the vacancies on the Council for the ensuing year. Any voter desirous of proposing any subject for discussion at the annual general meeting shall give notice in writing to the Secretary, which shall be received by him by noon on May 6th, 1915. The retiring Members of Council are :—A. E. Berriman, Griffith Brewer, Alec Ogilvie, Squadron Commander : Mervyn O'Gorman, C.B. ; F. Handley Page, Col. H. E. Rawson, C.B. ; Dr. A. P. Thurston, Eng.-Lieut. G. Aldwell, R.N., who are eligible for re election. Nominations of candidates for election to the Council shall be signed by the voters proposing them (two voters and no more), and must be received by the Secretary by noon on April 29th, 1915, with an intimation in writing by the voters nominated that they are willing to serve. An amendment to Rule 11 will be proposed by the Council to the effect that in cases where no new nominations for the Council are received a ballot paper need not be posted, the retiring Members of Council being re-elected at the Annual General Meeting. The Council will also ask for approval of their action in postponing, on account of the war, the date of the Annual General Meeting. By order of the Council, BERTRAM G. COOPER, Secretary. 11, Adam Street, Adelphi, London, W.C., April 19th, 1915. ® ® ® ® PUBLICATIONS RECEIVED. The Zeppelin Raid in West Norfolk. By Holvombe Ingleby, M. P. London : Edward Arnold, 41-43, Maddox Street, W. Price 3d. net. Catalogues. Oxygen and Other Gases for Industrial and Medical Purposes, Gas Regulators, Blow-pipes, Metal Cutters, &*c. The British Oxygen Co., Ltd., Elverton Street, Westminster, S.W. Steel Wires for Hardening and Tempering. W. N. Brunton and Son, Musselburgh, Scotland. ® ® ® ® Aeronautical Patents Published. Applied for In 1014 Published April 22nd, 1915. 8,598. A. CLEMENT-BAYARD. Transmission gears for controlling aircraft. FLIGHT. 44, ST. MARTIN'S LANE, LONDON, W.C. Telegraphic address: Truditur, London. Telephone: i828Gerrard. SUBSCRIPTION RATES. FLIGHT will be forwarded, post free, at the following rates:— UNITED KINGDOM. ABROAD. s. d. s. d. 3 Months, Post Free... 3 9 3 Months, Post Free... 5 c 6 „ ,,...766 „ „ ._ 10 o 12 „ 15 ° ia » .1 .. 20 o Cheques and Post Office Orders should be made payable to the Proprietors of FLIGHT, 44, St. Martin's Lane, W.C., and crossed London County and Westminster Bank, otherwise no responsibility will be accepted. 292
Sign up to
Flight Digital Magazine
Flight Print Magazine
Airline Business Magazine
E-newsletters
RSS
Events
