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Aviation History
1937
1937 - 1847.PDF
JULY I, 1937* FLIGHT. 25 STATIC II : (Left to right) Testing Dunlop braking efficiency ; tanks by E. G. Brown and Co. ; a demonstration rig of the Dowty retracting gear as fitted to the D.H. Don ; a modern Trojan horse—with legs by Lockheed ; Thompson Bros.' con tribution to quick refuelling ; almost unlimited bits and pieces by Brown Brothers (Aircraft) Ltd. ; and some famous carburetters and mixture controls by Hobson. (Flight photographs.) Essentially, " Sisalkraft" sub-soil grade, a production of J. H. Sankev and Son, Ltd., Aldwych House, London, W.C.2, is a five-ply' fabric made under enormous pressure, consisting of a top layer of heavy kraft paper, a layer of bitumen a central layer of sisal fibre, another layer of bitumen, and a final layer of kraft. ,. The result is a fabric of great strength, available in rolls 3ft. 6in. wide and 200 vards long, which, because of the bitu men layers, is absolutely impervious to water. The sisal is a strong non-elastic fibre, obtained from a species of plant be longing to the aloes family. Uszczelka Glowicy Wysadzila ATOT so very long ago, it is alleged, there was published an -LN English-French phrasebook which contained the magnifi cent sentence: " Stop, coachman ! I fear one of the postilions I has been struck by lightning." . Now the Shell-Mex people have produced something of the sort, less entertaining, but far more useful for the motorist touring abroad. It contains scores of phrases in no fewer than eighteen languages, and is obtainable at 3d. from Shell-Mex House, London, W.C.2. In case anyone is doubtful, the heading to this paragraph is Polish for "You have blown a cylinder gasket." Fire Fighting Gear at Hatfield A NEW 30-gallon Bromylene " Fire Froth " type B extin guisher was the main S.B.A.C. Show exhibit of the General Fire Appliance Company, Ltd., details of whose dis play were not available for our review last week. Every R.A.F. station at home and abroad, it is stated, now has one of these mobile extinguishers. For use in fumes and smoke of any sort, a lightweight oxygen-breathing apparatus, includ ing two cylinders, harness, and rubber mask, was also to bs seen. Crash equipment in wide variety is likewise a speciality of the firm.
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