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 238
88oc RAILROAD CROSSING GATE.—A lever in the gatehouse operates the gate arms by a series of bell cranks linked to-gether and to sectors in the gate arm boxes. A small lever andsector at each arm to close the foot walk. NAVIGATION AND ROADS. 227 … j l_ _, 1 1 F^^ k-M 1^ ^ ^ te SSod. RAILWAY PNEU-MATIC SIGNAL.—An air cylinder near the rail is operat-ed by the wheels passing overthe lever A, pressing it againstthe cam S, on a rocking shaftB, lifting the plate C, and theconnected piston. Elevationand plan. 880^. A SELF REGIS-TERING TIDE…
Mechanical movements
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