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 60
147. FRICTION MACHINE, for testingthe friction of wheels at various speeds andloads. The adjustable circular balance holdsthe wheels or vehicle in place. The poundstension on the scale multiplied by the periph-eral velocity in feet per minute gives the foot-pound draft or friction. so MEASUREMENT…
Mechanical movements
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