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Aviation History
1938
1938 - 2247.PDF
AlfGUST II, 1938. ADVERTISEMENTS. FLIGHT. 3 liTl, 1 w~ v -i • • ^ . islsjaTal' i=?;::l^^ ::,-. = -•; Mi'imainw TERRYS Valve Springs were FITTED TO THE "MERCURY —Napier Rapier-engined Upper M it TERRY'S AGAIN HELP TO MAKE HISTORY.. Once again, TERRY Valve Springs have proved " the only possible choice." For Mercury's record - breaking flight from Ireland to Montreal and New York, as well as for practically every other outstanding achieve ment of internal combustion engines on land or sea, or in the air, TERRY Springs are specified because of their absolute depend ability. A product exclusively manufactured by HERBERT TERRY & SONS LTD., Redditch. Component of the Short-Mayo Composite Aircraft. fmmm>a?. tatt&ltfwigss^ftftg&S • -.»**> HERBERT TERRY & SONS LIMITED, REDDITCH. ENGLAND. "Flight" Photo. Knock! Knock! Knock!!! 160,000,000 times! After a 4-cylinder car has covered 20,000 miles at an average speed of 45 m.p.h. and an engine speed of 3,000 r.p.m., the Tufnol cam heel on the contact breaker has been dragged round the cam for 1^890 miles and has taken 160,000,000 knocks — ample proof of the strength and durability of Tufnol. Tufnol has innumerable uses and is employed in practically every industry in hundreds of different ways. Whatever your own particular requirement, you SOME OF THE ADVANTAGES OF TUFKCL An interesting book has been issued containing general information and technical data on Tufnol. A copy will gladly be sent to you on application to : ELLISON INSULATIONS, LTD., PERRY BARR, BIRMINGHAM 22. will find a brand of Tufnol to suit it. Tufnol is supplied in the form of sheets, tubes, rods, angles and channels for manufacturers to produce their own parts. Half the weight of aluminium. Tensile strength ranging from 31 to 7J tons per sq. in. accord ing to brand. Non-metallic. Grade I elec trical insulator. Unaffected by oil, petrol, most acids, alkalies and chemical fumes. Incombustible and cnaffected by excessive cold. Res lent. Non-brittle. Can be machined like metsl. TUFNOL Registered Trade Mark Industry's Most Versatile Material *i» Ask for the uses to which TUFNOL has been put in the Aircraft Industry &*£Z3*$^^2£g
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