Traversing hoists – Overhead – Cable
Patent
1975-12-23
1977-01-18
Spar, Robert J.
Traversing hoists
Overhead
Cable
212 14, 212 18, B65G 6758
Patent
active
040034801
ABSTRACT:
Apparatus for unloading floating cargo vessels comprising endless pick-up members mounted on a jib which, in turn, is mounted on a gantry; a sensing member for determining the position in height of the cargo in the vessel relative to a fixed reference plane; and a control member responsive to information received from the sensing member for controlling the angular positioning of the jib, thereby controlling the position in height of the pick-up members.
REFERENCES:
patent: 2946466 (1960-07-01), Weiner
Abraham George F.
Spar Robert J.
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