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Mechanical movements, powers and devices; a treatise describing mechanical movements and devices used in construcive and operative mechinery and the mechanical arts, being practically a mechanical dictionary (1917)

Hiscox, Gardner Dexter, 1822?-1908 · New York : The Norman W. Henley publishing co. · leaf 344

An illustration from Mechanical movements, powers and devices; a treatise describing mechanical movements and devices used in construcive and operative mechinery and the mechanical arts, being practically a mechanical dictionary, 1917, leaf 344
1399. SCREW THREADS.—United States Standard Thread. Flat top andbottom. Depth equals 0.65 of the pitch.Angle 60°. 1400. SCREW THREADS, Whit-worth thread. Rounded top and bot-tom. Depth equals 0.75 of the pitch.Angle 550. TRAPEZOIDAL +p*THREAD I • … 1401. SCREW THREADS, Trape-zoidal thread. Angle 90°face, 45° back.Depth equals 0.75 of the pitch. 22 338 MILL AND FACTORY APPLIANCES.

Mechanical movements

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