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 62
TOR.—The curved slot is made proportionalto the length of the two arms of the pencil lever. 155. AMSLERPLANIMETER.—E is the fixedpoint; F the tracer. Thedisc has a sharp edge anda cylindrical section dividedand read from a vernier scale.A worm screw and indexwheel indicate the number of revolutions…
Mechanical movements
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