Manual crank assembly for winches, especially for rack and pinio

Details Manual crank assembly for winches, especially for rack and pinio Manual crank assembly for winches, especially for rack and pinio

1986-02-19

1987-11-17

Watson, Robert C.

Implements or apparatus for applying pushing or pulling force

Multiple lifters

B66F 712

Patent

active

047069368

ABSTRACT:
With a lifting and depositing device for portable box-like articles, in order to be able to operate their rack and pinion jacks manually and with ease by crank assemblies, each crank assembly has a haft-like crankcase, which has at one end a rotatable crankshaft and at the other end a rotatable drive shaft, which can be connected with an adjacent rack and pinion jack having a winch housing. The crankshaft and drive shaft are operatively connected with each other so that the latter is driven by the former. The crankcase can be connected with an adjacent winch housing and be pivoted into different work positions as well as fixed in such positions on the winch housing. Thus, the operation of the rack and pinion jacks is especially simplified in their top and bottom end positions on the uprights of the lifting and depositing device.

REFERENCES:
patent: 2161136 (1939-06-01), Conradson
patent: 2499005 (1950-02-01), Sellers
patent: 4137784 (1979-02-01), Griffin
patent: 4417650 (1983-11-01), Geisthoff

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