Implements or apparatus for applying pushing or pulling force – Step-by-step traveling bar – Pawl actuated
Patent
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.
Shiota Ryoji
Sugimoto Yutaka
Kabushiki Kaisha Komatsu Seisakusho
Noland Kenneth
Paperner L. J.
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