Wildcat chain hoist with whelps, pockets, and movable drum halve

Details Wildcat chain hoist with whelps, pockets, and movable drum halve Wildcat chain hoist with whelps, pockets, and movable drum halve

1992-02-14

1994-01-04

Crowder, Clifford D.

Implements or apparatus for applying pushing or pulling force

Apparatus for hauling or hoisting load, including driven...

Device includes rotatably driven, cable contacting drum

254286, 114293, B66D 172, B63B 2116, F16G 1312

Patent

active

052753794

ABSTRACT:
A wildcat chain hoist for lifting anchor chain where the chain length may have different size chain links. The wildcat chain hoist continuously lifts the chain regardless of the different link sizes by engaging alternate chain links defined as horizontal links and applying a pulling force to them. The wildcat chain hoist includes a drum constructed of two identical halves having whelps for guiding the vertical links. The halves are joined together to provide a v-shaped cross section. There are pockets extending from the drum hub up to the perimeter with the pockets increasing in size toward the perimeter to gage and guide the chain links into the proper pocket size. Each wildcat chain drum half has a flange rim which moves or adjusts to close the pockets on the chain links to pull on the chain, and to open to release the chain.

REFERENCES:
patent: 36087 (1862-08-01), Harfield
patent: 938174 (1909-10-01), Shaw
patent: 3250514 (1966-05-01), Hamalainen
patent: 3396514 (1968-08-01), Schorp
patent: 4034556 (1977-07-01), Riber
patent: 4070981 (1978-01-01), Guinn et al.
patent: 4273486 (1981-06-01), Tatina
patent: 4466598 (1984-08-01), Eggleton et al.
patent: 4504022 (1985-03-01), Stang
patent: 4520999 (1985-06-01), Phillips
patent: 4575050 (1986-03-01), Bechmann
patent: 4646805 (1987-03-01), Dohmeier

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