Type of disengaging gear designed to deal simultaneously and automatically at both ends of boat, to free it from davit falls or tackles as soon as boat is waterborne. (See also - discussion p 127-136, 1 fig)
Boat lowering appliances
Tran. Inst. Marine Engrs
1918
5 pages
4 Figs.
Aufsatz (Zeitschrift)
Englisch
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