Mechanical movements, powers, devices and appliances; (1903)
Hiscox, Gardner Dexter, 1822?-1908 · New York, The N.W. Henley & co. · leaf 388
1570. POST CRANE.—Driven by hy-draulic lift under the platform. The boomswings on the post. The rope is carried upthe hollow post. … 1571. WHARF CRANE, withtrussed arch jib. Pivoted to turn inany direction. Power shaft turns incrane pivot. 38o MISCELLANEOUS DEVICES.
Mechanical movements
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