Overhead hoist assemblies
OwnerDonald J. Rowan, Larry J. Rowan +1inventors
InventorsDonald J. Rowan, Larry J. Rowan, Kenneth L. Rowan
Life of this patent
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Abstract
When a hoist is used to elevate a grain truck for dumping same, at an elevator terminal or the like, a pair of lift cables extend from the overhead hoist assembly to the cradle upon which the front wheels of the truck are engaged. As the truck is lowered after emptying the grain therefrom, the slack cables often foul the truck as it is being driven from the cradle. In the present device, each cable passes through a spring loaded arm normally urging the cables outwardly away from the sides of the truck thereby clearing same, but which are aligned against the spring pressure as soon as the lifting load is applied so that the cables run vertically from the hoist assembly.
Claims8
In an overhead hoist assembly which includes a pair of spaced apart cables extending downwardly therefrom and being operatively connected to said hoist assembly;
- the improvement comprising a cable guiding arm assembly for each cable, means pivotally to support said arm assembly from said hoist assembly, means on said arm assembly guiding said cable, and spring means normally urging said arm assemblies outwardly away from one another thereby displacing said cables from the vertical, tension on said cables above a predetermined amount, overcoming said spring means and allowing said cables to straighten and run vertically.
Dependencies are inferred from the claim text.