Hoist with load limiting device

Details Hoist with load limiting device Hoist with load limiting device

1974-11-29

1976-04-27

Spar, Robert J.

Implements or apparatus for applying pushing or pulling force

Step-by-step traveling bar

Pawl actuated

192 56R, B66D 100

Patent

active

039530000

ABSTRACT:
A hand hoist comprising a hand wheel adapted to be moved by hand. The wheel has a plurality of circular openings therein spaced circumferentially of said wheel. A plurality of friction discs are placed in the openings and have opposed surfaces. A driven member is adapted to be connected to the hoist for providing a drive for lifting. The driven member has a surface engaging one of the opposed surfaces of the discs and a pressure member engages the other of the surfaces of the discs. Spring means apply yielding pressure to the pressure member.

REFERENCES:
patent: 2690825 (1954-10-01), McWethy
patent: 2825437 (1958-03-01), Reykjalin
patent: 3108670 (1963-10-01), Habicht
patent: 3468403 (1969-09-01), Nasuytis

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