Lifting jack

Details Lifting jack Lifting jack

B - Operations, Transporting

66

F

254/117

B66F 3/44 (2006.01) B66F 3/00 (2006.01) E04H 7/30 (2006.01)

Patent

CA 1037943

ABSTRACT This is a lifting jack particularly adapted for use in erecting farm silos and specifically embodies a cam slot and pin arrangement for producing a pre-determined incre- ment of rotation of the silo structure during each elevat- ing operation.

240182

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