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 225
a hanger. On a level the stepsform a floor, as the end of the ladder falls withthe tide the hangers lift the forward edgeof the step to keep it level. The shore postsare fixed and vertical. Stringers are pivotedto posts. 814. SCREW ANCHOR for buoys. Is screwedto the required depth in the sand by a… … 8x6. STONE DRY-DOCK, intowhich vessels are floated and a wateigate closed, when, by pumping the waterout, the vessel settles upon bearingblocks, and is shored from the side walls. 817. FLOATING DRY-DOCK, in which the lifting power is derived fromthe displacement of the water in theinterior of the…
Mechanical movements
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