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Mechanical movements, powers and devices; a treatise describing mechanical movements and devices used in construcive and operative mechinery and the mechanical arts, being practically a mechanical dictionary (1917)

Hiscox, Gardner Dexter, 1822?-1908 · New York : The Norman W. Henley publishing co. · leaf 221

An illustration from Mechanical movements, powers and devices; a treatise describing mechanical movements and devices used in construcive and operative mechinery and the mechanical arts, being practically a mechanical dictionary, 1917, leaf 221
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… … 816. STONE DRY-DOCK, intowhich vessels are floated and a watergate closed, when, by pumping the waterout, the vessel settles upon bearingblocks, and is shored from the side walls. wi^aiiiiWrtJ:ifUiiiJirtmrir 817. FLOATING DRY-DOCK, inwhich the lifting power is derived fromthe displacement of the…

Mechanical movements

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