Automatic anti-fall device for manual or motorized lifting syste

Details Automatic anti-fall device for manual or motorized lifting syste Automatic anti-fall device for manual or motorized lifting syste

1979-06-06

1981-03-10

McCarthy, Edward J.

Implements or apparatus for applying pushing or pulling force

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

Device includes rotatably driven, cable contacting drum

188 651, 188188, 254371, B66D 516

Patent

active

042549418

ABSTRACT:
The device is adapted to be used in a manual or motorized lifting system comprises a self-tightening jaw-block which normally lets a lifting or an auxiliary cable pass through it, whereby a releasing device, by an excessive speed of the cable relatively to the jaw-block, lets jaws clamp the cable and an interrupter stop the motors.

REFERENCES:
patent: 3669223 (1972-06-01), Arnold
patent: 3968865 (1976-07-01), McElroy
patent: 3968865 (1976-07-01), McElroy
patent: 3980161 (1976-09-01), Mouldin
patent: 4106753 (1978-08-01), Cavalieri

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