Handling: hand and hoist-line implements – Hook – hoistline – or grab type – Locking device
Patent
1978-05-23
1980-06-10
Marbert, James B.
Handling: hand and hoist-line implements
Hook, hoistline, or grab type
Locking device
24241P, B66C 136
Patent
active
042069408
ABSTRACT:
The invention is related to a handling hook assembly comprising a hook member having a long arm connected to a short arm by a curved hook member portion. The respective free ends of said arms are located at a distance from each other, so as to define between them a gap through which a carrying sling, or the like, can be introduced into said hook member. A locking lever is pivotally mounted onto said hook member at a location near the free end of the long arm, which locking lever is angularly displaceable between an open position wherein the locking lever clears the gap, and a locking position wherein the locking lever closes said gap. Hooking means are provided on the locking lever and at said free end of the short arm for positive locking engagement between said lever and said free end of the short arm when said lever is in said locking position. The lever is provided with an aperture adapted to receive a raising cable actuated by a hoisting apparatus, said aperture being so located that when the handling hook assembly depends from the cable with the curved hook member portion directed downwardly, the above-mentioned aperture is placed at a level above the pivoting axis of the locking lever and the pivoting axis is located at a level above the lowermost zone of said curved hook member portion, the respective locations of said aperture, pivoting axis and lowermost zone of the curved portion being such that under the effect of a downwardly directed force acting on the lowermost zone of the curved portion of the depending hook assembly, the locking lever is forced into said locking position.
REFERENCES:
patent: 1118618 (1914-11-01), Babb
patent: 2436792 (1948-03-01), Dahlander
patent: 2462965 (1949-03-01), Henderson
patent: 3785015 (1974-01-01), Dorton
patent: 3827746 (1974-08-01), Byers
patent: 3940173 (1976-02-01), Ulbing
LandOfFree
Handling hook assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Handling hook assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Handling hook assembly will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-859511