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Aviation History
1909
1909 - 0416.PDF
JULY IO, 1909. " Our old ' Ziegler ' is still in excellent condition, and will to-day make another ascent, filled with hydrogen gas." Even had the balloon shown any leakiness, this might have been considered excusable, in view of the fact that she had made over 85 ascents, including many rough landings, and in January last was blown loose in a gale ; and rising to a great height, burst, owing to excessive pressure, tearing the envelope into three pieces. On repairs being taken in hand, the material was found to be still in excellent condition, and perfectly gas-tight. The Club fully expects to complete over 100 ascents. Whilst we have no doubt that the statement contained in your report was made in good faith, we should be glad if you would kindly rectify the matter by publication of the true facts, as the suggestion of leakiness is liable to convey an erroneous impression of the gas-retaining properties of our rubber-proofed balloon fabrics. Yours faithfully, C. ZIMMERMAN. MODEL PARTS AND ACCESSORIES. To the Editor of FLIGHT. SIR,—It may interest your readers to know that we are now stocking a new patent type of wire adjuster, as illustrated in Fig. I. interest you and your readers, I am sending you photo and descrip- tion. It is much lighter, neater, more reliable (it cannot possibly slack back) and considerably cheaper than the usual " turnbuckle," and not the least of its advantages is that it is placed on the wire stay after it is fixed, and does not necessitate cutting and joining up the wire. The photo practically explains the device and its mode of appli- cation. You will see that it consists of one piece only, a saucer- shaped steel stamping, one inch in diameter, with a central boss. Round the rim are four or more inclined slots, diametrically opposite to one another, in pairs ; the centre boss is also slotted in line with one pair of the rim slots. The wire to be strained is placed in the centre slot and through the two slots in the rim which are in line with it. On rotating the device by means of a key or screwdriver placed in the slotted boss (the rotation being in direction of inclined slots), the wire slips from the slots it is resting in, and on the next pair coming beneath it falls into them, and is automatically locked by its own tension. The surplus wire is wound on the boss. Yours faithfully, ALFRED P. PORTWAY. By means of the nut screwing on the slip sleeve, the use of the steel wire, acting as a locking arrangement, as shown on Fig. 2, is obviated. Fig. 2 represents the old type adjuster fitted with the steel wire locking device, which has the disadvantage of being in the way, and being likely to scratch or tear. TERMINOLOGICAL EXACTITUDE. To the Editor of FLIGHT. SIR,—I am not a technical expert, but I wish to lodge a protest against Mr. Moore- Brabazon calling his aeroplane an " aero- drome," as it is neither "a rapid motion through the air" or an aerial "race course." Also with regard to " ptery- gojdai^" can a piane De conscientiously called a wine; ? I remain, yours truly, S. W. MAXWELL. NEW COMPANIES REGISTERED. Spencer Syndicate, Ltd.—Capital ^1,000, in £\ shares. Manufacturers of and dealers in balloons, aeroplanes, and airships of all kinds, &c. H. O. B. Syndicate, Ltd.—Capital ,£100, in £1 shares. To work under an agreement with Hart Ostheimer Berg and A. Heinemann, manufacturers of and dealers in machinery and plant, &c. Women's Aerial League of the British Empire, The Cottage, Cockfosters, Herts.—Limited by guarantee. 100 members. Liability 105. " Limited " omitted from title by licence of Board of Trade. Figs. 3 and 4 represent the new device of tightening wires, which do away with the use of wire adjusters altogether. They consist of ordinary steel clips in U and L shapes. They are not quite so secure as wire adjusters, but they answer the same purpose for model aeroplanes. Fig. 5 represents the different types of aluminium sockets which we stock for aeroplanes or model aeroplanes. Yours faithfully, EYQUEM'S PATENTS. BACK NUMBERS OF FLIGHT." THE publishers have pleasure in announcing that they have secured a few of the back issues of FLIGHT, and any of our new readers who may wish to complete their sets may obtain the first twenty-seven numbers for 3.J. 6d. (abroad 5^. 3d.) post free, from the Publishers, 44, St. Martin's Lane, W.C. AN INGENIOUS WIRE TIGHTENER. To the Editor oj FLIGHT. SIR,—I have recently patented a wire-tightening device, which is specially suitable for use on the stays of aeroplanes. As it may FLIGHT, 44, ST. MARTIN'S LANE. LONDON, W.C. Telegraphic address : Truditur, London. Telephone : 1828 Gerrard. WIRE TIGHTENER. >;U Silt .\ SUBSCRIPTION RATES. FLIGHT will be forwarded, post free, to any part of the world at the following rates: — UNITED KINGDOM. 3 Months, Post Free 6 >> >> 12 „ ,, d. 8 36 ABROAD. 3 Months, Post Free . 6 „ „ 12 >. s. 2 510 d. 6 Cheques and Post Office Orders should be made payable to the Proprietors of FLIGHT, 44, St. Martin's Lane, W. C., and crossed London and County Bank ; otherwise no responsibility will be accepted. Should any difficulty be experienced in procuring FLIGHT from local newsvendors, intending readers can obtain each issue direct from the Publishing Office, by forwarding remittance as above. 418
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