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 58
Diameter of pulley in feet X 3-1416 X revolutions per minute =speed of periphery of pulley per minute. The lever is of the third order. Itslength from centre of shaft to the eye holding the weight, divided by the radiusof the pulley, all in feet, or decimals of a foot = the leverage. Then the… … 140. WEBBER DYNAMOMETER.—A lever with cross arm on which twobevel gears are pinioned at right angles withthe bevel gear of the driving-shaft. Thepinions on the lever transmit the powerwhich is weighed by the resistance of thelever at the spring balance. The H. P. indicated is:B X 6.2832 X R X W „…
Mechanical movements
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