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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 205

An illustration from 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, leaf 205
728. ELECTRIC STREET-CAR BRAKE.—A solenoid, oper-ated by the trolley current, pulls up the brake levers. The springs around the pistonrods hold back theconnections, actingas buffers. The pis-tons are dividedinto three partseach, to soften thejerk when turningon the electric current. … 729. Section of solenoid, with the take-up pistons. ELECTRIC PDWKR AND CONSTRUCTION. 195

Mechanical movements

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