Manual winch with safety clutch, especially as a power source in

Details Manual winch with safety clutch, especially as a power source in Manual winch with safety clutch, especially as a power source in

1978-12-06

1980-12-02

Christian, Leonard D.

Implements or apparatus for applying pushing or pulling force

Step-by-step traveling bar

Pawl actuated

254184R, B66D 100

Patent

active

042366941

ABSTRACT:
A winch operated by a manual crank and handle for reeling-up or out a belt or rope and including a holding catch for preventing reeling-out when the handle is not actuated. A friction coupling mechanism is momentarily released when the handle is moved in the reeling-out direction, resulting in that the load is moved downwardly and actuates a screw mechanism which momentarily locks the coupling if the handle is stopped. Reeling-out is thus effected by releasing and locking actions following each other at very small intervals, the reeling-out movement being practically synchronous with the movement of the handle until it is stopped.

REFERENCES:
patent: 3224735 (1965-12-01), Linde
patent: 3248087 (1966-04-01), Hallen
patent: 3640505 (1972-02-01), Durand
patent: 3741528 (1973-06-01), Profet
patent: 3765652 (1973-10-01), Janik
patent: 4156521 (1979-05-01), Harman

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