Hoist

Details Hoist Hoist

1984-12-07

1986-07-22

Werner, Frank E.

Material or article handling

Self-loading or unloading vehicles

Loading or unloading by other carrier or mover means, and...

212262, 212242, 212258, 212259, 254280, 254284, 414541, B60P 154

Patent

active

046016333

ABSTRACT:
A hoist that includes a winding drum for a load-lift cable mechanism. The um has two drum sections of slightly different diameter; end portions of the cable are wound in different directions on the drum sections, so that one cable section winds onto a drum section while the other cable section winds off the other drum section. The effect is to provide a very slow net cable motion related to the difference in drum section diameters. The hoist includes a latch mechanism adapted to suspend the load from the boom during certain periods of a load transfer operation.

REFERENCES:
patent: 2420072 (1947-05-01), Foote
patent: 2571361 (1951-10-01), Harmanson
patent: 2633999 (1953-04-01), Blackman et al.
patent: 2639825 (1953-05-01), Eakin

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