Handling: hand and hoist-line implements – Hoist-line slings
Patent
1977-12-30
1980-01-29
Cherry, Johnny D.
Handling: hand and hoist-line implements
Hoist-line slings
294 81R, B66C 118
Patent
active
041858620
ABSTRACT:
A self-stabilizing multiple sling system for hoisting a load of the type characterized by a plurality of substantially identical, double-ended cargo items. The cargo items are preferably arranged on top of one another in a plurality of stacks, with the ends of the cargo items in adjacent stacks in end-to-end abutment. One embodiment includes a spreader, a hoisting bridle attached to the spreader and adapted for attachment to a cargo fall, and a pair of slings attached to the spreader. The slings are looped about a pair of the stacks of cargo items, and are spaced apart a predetermined distance such that the lifting forces on the stacks tend to tip the stacks and urge together the abutting ends of at least some of the cargo items to stabilize the draft. Other embodiments utilize a greater number of spreaders or slings or both.
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