Lifting tackle for filled sacks

Details Lifting tackle for filled sacks Lifting tackle for filled sacks

1977-10-12

1980-01-01

Cherry, Johnny D.

Handling: hand and hoist-line implements

Grapple

Fixed and moveable jaw

24 68E, 24196, 294 86R, B66C 110

Patent

active

041813456

ABSTRACT:
A lifting device for filled sacks comprises a frame in which a pair of parallel clamping bars are mounted to be revolved in unison by a crank about a common horizontal axis parallel to and spaced from the longitudinal axes of the bars. One of the bars is individually rotatable about its own longitudinal axis and is displaceable towards and away from the other bar. The gathered top of a sack is introduced between the bars when these are separated and automatically becomes wrapped around the bars and clamped therebetween as the crank is turned, whereafter the sack can be lifted by raising the frame.

REFERENCES:
patent: 1325422 (1919-12-01), Stuart
patent: 1962846 (1934-06-01), St. Pierre
patent: 2327139 (1943-08-01), Scott
patent: 3296672 (1967-01-01), Knight
patent: 3606439 (1971-09-01), Rutan

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