Mechanical movements, powers, devices and appliances (1901)
Hiscox, Gardner Dexter, 1822?-1908 · New York, N. W. Henley & company · leaf 393
1590. STREET-CAR SAND BOX.— The operation of the lever, pawl, andrachet wheel turns the twisted carrier andat the same time revolves the toothed feedwheel. … 1591. FRICTION BRAKE forstreet-railway cars. A leather washerbetween the flange of the brake spooland axle flange is the friction sur-face. The spool is held by a shortwind of the chain either way. Thediagonally cut sleeve is elongated bya pull on the connecting rods, whichcompresses the friction…
Mechanical movements
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