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US 4,073,042 AGranted
Safety hook
AssigneeESCO Corporation
InventorFranklin L. Miller
Life of this patent
Estimating the term…
Abstract
A safety hook for use with a sling wherein the hook is equipped with a simple, yet sturdy pivotal latch for locking a load in position.
Claims2
A safety hook comprising a unitary body having a shank curving downwardly and forwardly into a bill with the upper end of said bill being in spaced relation to said shank to provide a throat,
- said body at the upper end thereof being equipped with a passageway adapted to receive a wire rope, said passageway extending from the rear of said body forwardly therethrough, said passageway being relatively elongated and being longitudinally arcuate,
- a latch member pivotally mounted on said shank and extending across said throat in a first position to releasably engage said bill to close said throat,
- a bolt pivotally securing said latch member to said shank for arcuate movement of said latch member to a second position upon said bill,
- said passageway having a smooth upper wall and a lower wall interrupted to provide a forwardly extending recess terminating in a bolt-receiving opening, said bolt extending through said opening into said recess, and
- a spring and nut in said recess mounted on said bolt, said recess being constructed and arranged relative to said nut and bolt so as to shield the same from a wire rope in said passageway.
2 more elements
Dependencies are inferred from the claim text.