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Aviation History
1939
1939 - 0175.PDF
JANUARY 26, 1939. ADVERTISEMENTS. FLIGHT. 7 High stresses 'Material which is stressed to a high1 degree must give consistently good physical properties combined with regularity of behaviour in forging heat treatment and machining. "DIAMET I nspected" electric steel is subject to particularly careful scrutiny throughout its manufacture, and in additi on each cast is examined for cleanness by means of the Fox In clusion Count method, which makes it possible to assess the degree of cleanness on a quantitative basis. The "DIAMET I nspection system is applied to the steels used in the more vital parts of aircraft, aero engines, automobiles and other important machinery. Specify "DIAMET Inspected" Steels. Rolls Royce Kestrel crankshaft, drop stamped by Smith-Clayton Forge Ltd., from "DIAMET Inspected" 3% nickel-chrome-molybdenum steel. THE UNITED I COMPANIES LTD SAMUEL FOX & CO. LIMITED Associated with The United Steel Companies Limited STOCKSBRIDGE NR. SHEFFIELD D1AM E-T' Inspected'Sieel DISC INSPECTED & METALLURGICAL!* EXAMINED & TESTED MATERIAL HIC?) FREQUENCY I ELECTRIC STEEL ® DT.2f
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