Implements or apparatus for applying pushing or pulling force – Apparatus for hauling or hoisting load – including driven... – Device includes rotatably driven – cable contacting drum
Patent
1992-03-17
1994-04-26
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
254357, B66D 114
Patent
active
053059891
ABSTRACT:
A hoist and traction machine having a mechanical brake, in which an operating handle is non-rotatably and axially movably interposed between a stopper provided at an axial end of a driving shaft and a driving member screwable with the driving shaft. Between the operating handle and the stopper is provided a regulation unit for regulating a relative rotation range of the driving member with respect to the driving shaft so as to enable release of the regulation by moving the handle away from the driving member, so that the driving member is moved away from a driven member by of moving the operating handle from the driving member to be normally rotated in a free-rotation operation mode whereby the braking action of the mechanical brake by a braking ratchet wheel and braking plates is released to control the free rotation of the driving shaft and the elastic biasing member biases it to maintain the state of free rotation control.
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patent: 4065100 (1977-12-01), Walsh
patent: 4469308 (1984-09-01), Nakamura et al.
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patent: 4483519 (1984-11-01), Nakamura
patent: 4512555 (1985-04-01), Nakamura
patent: 4664357 (1987-05-01), Nishimura
patent: 5088694 (1992-02-01), Nishimura
Honda Munenobu
Kubota Haruo
Nishi Yoshio
Ueno Yoshio
Wada Yasuo
Crowder Clifford D.
Elephant Chain Block Company Limited
Izaguirre Ismael
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