Hiscox, Gardner Dexter, 1822?-1908 · New York, The Norman W. Henley publishing co. · leaf 205
728. ELECTRIC STREET-CAR BRAKE.—A solenoid, oper-ated by the trolley current, pulls up the brake levers. The springs- .a =1^ m, /<^5^°^ ,a =r H. around the piston rods hold back theconnections, actingas buffers. Thepis-3 tons are dividedinto three partseach, to soften thejerk when turningon the… … ELECTRIC POWER AND COXSTRLXTION. 195
Mechanical movements
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