Double-drum winch

Details Double-drum winch Double-drum winch

1975-06-27

1977-07-05

Paperner, L. J.

Implements or apparatus for applying pushing or pulling force

Step-by-step traveling bar

Pawl actuated

192 12C, B66D 126

Patent

active

040335542

ABSTRACT:
Double-drum winch has a hook drum for actuating a hook through a hook wire wound around the hook drum and a boom drum for actuating a boom which supports the hook through a boom wire wound around the boom drum each rotatably mounted on a drum shaft, a hook clutch and a hook brake engageable and disengageable with and from the drum shaft for driving or arresting the hook drum, a boom clutch and a boom brake engageable and disengageable with and from the drum shaft for driving or arresting the boom drum and a clutch mechanism including a forward driving connection clutch for driving the drum shaft in the forward direction, a reverse driving connection clutch for driving the drum shaft in the reverse direction, and a plurality of different speed clutches for driving the drum shaft at different speeds. The hook drum and the boom drum can be actuated independently from each other in either of the forward and reverse directions at any of the different speeds by the selected operation of one or more of the three manually controlled systems.

REFERENCES:
patent: 2179082 (1939-11-01), Benson
patent: 2445116 (1948-07-01), Huston
patent: 2954209 (1960-09-01), Luketa
patent: 3578787 (1971-05-01), Brickett et al.
patent: 3722707 (1973-03-01), Hedeen et al.
patent: 3895699 (1975-07-01), Mita et al.

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