B - Operations – Transporting – 66 – C
Patent
B - Operations, Transporting
66
C
24/15
B66C 1/22 (2006.01) B66C 1/36 (2006.01) F16G 11/14 (2006.01)
Patent
CA 1108826
ABSTRACT OF THE DISCLOSURE In a handling hook assembly for use in hoisting various loads by means of a sling, there is described an improved hook assembly wherein the locking lever attaches and detaches auto- matically when the hook is placed under load or when the hoist line is slackened respectively without the use of actuating ele- ments such as springs. Known handling hooks require manual actua- tion to either close or open the locking lever, presenting a signi- ficant danger to the hands of the operator. In this invention, a hook member is formed with a gap to receive a sling or other load. A locking lever is pivotally mounted on the long arm of the hook member so as to pivot inwardly of the hook member. An aperture is formed in the lever adjacent the pivoted end of the lever to receive the hoisting cable and is so located that the forces exerted by loading exert a moment about the pivot thereby causing the lever to pivot into its locked position. The free end of the locking lever is formed having a claw-shaped end portion with two claws, each of the claws having laterally extending engaging surfaces to engage with laterally extending shoulder portions formed into the opposing end of the hook member. When the hoist line is slackened, the locking lever disengages and pivots inward- ly and away from the opposing end of the hook.
315812
Altabe Edmond
G. Ronald Bell & Associates
LandOfFree
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