Traversing hoists – With haul-in line
Patent
1988-01-28
1990-04-24
Basinger, Sherman D.
Traversing hoists
With haul-in line
182 3, 212206, 212218, 212219, 212270, B66C 1344
Patent
active
049192833
ABSTRACT:
A safety system helps prevent injury from falls from stacks of containers while loading and unloading container ships using an overhead trolley crane. The crane is of the type including a frame movable in fore and aft gantry directions, a trolley track supported by the frame and a trolley movable along the trolley track in on shore and off shore trolley directions. The trolley includes a container bridle which lifts and lowers the containers during loading and unloading operations. Workers walk on the containers to place and retrieve stacking cones at the corners of the containers. The workers ride in a cage on the bridle in getting onto and off of the containers. The operational status of the crane-normal speed, slow speed or stopped-is visually indicated to the worker by colored lights on the cab. Each worker is tethered to the bridle by a short (6'), two piece safety line in case the worker falls off the stack of containers. Each worker has a transmitter which can be used to stop the bridle in an emergency.
REFERENCES:
patent: 3559817 (1971-02-01), Brown
patent: 4407392 (1983-10-01), Lazzari
patent: 4546852 (1985-10-01), Martin et al.
patent: 4566599 (1986-01-01), Villa et al.
patent: 4676339 (1987-06-01), Rybka et al.
patent: 4705140 (1987-11-01), Dudley et al.
McNeill John
Riley Robert E.
Basinger Sherman D.
Brahan Thomas J.
Marine Terminals Corporation
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