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Aviation History
1938
1938 - 1113.PDF
APRIL 21, 1938. .FOUR ARMSTRONG ADVERTISEMENTS. FLIGHT. 21 SIDDELEY TiCER IX ENGINES (S80 HP TAKE OFF) THE NEW IMPERIAL AIRWAYS AIR tlTVEIi JJesigned and OonsfnicieJ by ARMSTRONG WHITWORTH AIRCRAFT LIMITED WHITLEY .. COVENTRY" IMMERSED IN LIQUID OXYGEN 297 F below zero- yet quite unaffected! The photographs on the right show how a piece of Tufnol and a piece of rubber were immersed in liquid oxygen — at 2970 F below zero. On removal the rubber smashed like a piece of glass at the first blow of the hammer. Tufnol was quite un- affected by the treatment. (We acknowledge the kind assistance of the British Oxygen Company in making these experiments.) Tufnol has innumerable uses and is employed in practically every industry, in hundreds of different ways. Whatever your own particular requirement, you Will find a brand of Tufnol to suit it. A Tufhol pulley for aircraft. It is light, gives long ser-vice and does not chafe the wires. Tufnol is supplied in the form of sheets, tubes, rods, angles and channelsfor manufacturers to produce their own parts. SOME OF THE ADVANTAGES OF TUFNOL An interesting book has bejnissued containing general information and technicaldata on TUFNOL. A copy will gladly be sent to you onapplication to: ELLISON INSULATIONS, LTD.PERRY BARR, BIRMINGHAM, 20. Half the weight of aluminium. Tensile strength ranging from 31 to 7 tons persq. in. according to brand. Non-metallic. Grade I electrical insulator. Unaffected by oil, petrol, most acids, alkalies and chemical fumes. Incombustible and unaffected by excessive cold. Resilient. Non-brittle. Can be machined like metal.TUFNOL1 INDUSTRY'S MOST VERSATILE MATERIAL k for the uses which Tufnoi s been put in the ircraft Industry. RegisteredTrade Mark. 87
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