Mechanical movements, powers, devices and appliances; (1903)
Hiscox, Gardner Dexter, 1822?-1908 · New York, The N.W. Henley & co. · leaf 392
1584. GORDON PRINTINGPRESS.—Single cylinder, for bill andletter press-work. 1585. RACK AND PAWL wheel lifting-jack.Lower pawl is operated by a lever or crank. MISCELLANEOUS DEVICES. 3^3 … 1586. BALL-BEARING SCREW JACK.—The balls run in grooves between the bearingplates. 1587. HYDRAULIC TRANSFERJACK.—For lifting cars or transferringover temporary rails. The extension ofthe truck axles allows for adjustment toany gauge railroad.
Mechanical movements
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