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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 201

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 201
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 POWER AND CONSTRUCTION. 195

Mechanical movements

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