Mechanical movements, powers and devices; a treatise describing mechanical movements and devices used in constructive and operative machinery and the mechanical arts, being practically a mechanical dictionary, commencing with a rudimentary description of the early known mechanical powers and detailing the various motions, appliances and inventions used in the mechanical arts to the present time, including a chapter on straight line movements, by Gardner D. Hiscox (1914)
Hiscox, Gardner Dexter, 1822?-1908 · New York, The Norman W. Henley publishing co. · leaf 348
1399. SCREW THREADS.—United States Standard Thread. Flat top andbottom. Depth equals 0.65 of the pitch.Angle 60°. WHITWORTH THREAD | … 1400. SCREW THREADS, Whit-worth thread. Rounded top and bot-tom. Depth equals 0.75 of the pitch.Angle 550. 1401. SCREW THREADS, Trape-zoidal thread. Angle 90° face, 45° back.Depth equals 0.75 of the pitch. 338 MILL AND FACTORY APPLIANCES.
Mechanical movements
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
