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Aviation History
1939
1939 - 1639.PDF
44 Advertisements. ^DSCffi? MAY 25, 1939. SPENCER LOCATING PINS COVERED BY PATENT NO. 452,3M. The photograph shows " Flight" photograph. SPENCER LOCATING PINS in use at the BLACKBURN AIRCRAFT FACTORY where they are used throughout, for holding metal sheets in position before riveting. SPEEDY — LABOUR SAVING — EFFECTIVE The main features are :— The grip is Positive and Automatic • The operation is practically instantaneous in regard to application and release • The grip is applied inside the holes, thereby eliminating all risk of damage to either surface of an assembly. • As implied by its description this appliance definitely locates an assembly, thus acting as a check against drilling inaccuracies prior to the permanent riveting operation • The necessary use of hand pliers eliminates risk of cramp and still more serious danger of septicaemia. Supplied in three sizes for ^, and jfj holes. WALTER SPENCER & CO. LTD. CRESCENT STEEL WORKS, WARREN ST., LONDON OFFICE: 28, VICTORIA ST., S.W.I. SHEFFIELD 4
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