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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 43

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 43
96. TWO SPEED PULLEYS AND BELTS. —Two pair of tight and loose pulleys on lowershaft, unequal broad tight pulleys on upper shaft.By crossing the belt from one of the pair a quickreturn speed may be obtained. Much used ontapping-machines and planers. … 97. PULLEYS, COMBINED WITH A DIF-FERENTIAL GEAR for two speeds, and stop-beltshown on loose pulley. Middle pulley on lowershaft is fast to shaft, and has a bevel gear fast to itshub. Pulley on the right is loose on shaft and car-ries, transversely, another bevel gear. A third bevelgear runs loose…

Mechanical movements

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