Speed-shift apparatus for sheet winch

Details Speed-shift apparatus for sheet winch Speed-shift apparatus for sheet winch

1980-05-23

1982-06-08

Braun, Leslie

Machine element or mechanism

Rotary member or shaft indexing, e.g., tool or work turret

Preselected indexed position

74810, 254308, 254354, F16H 552

Patent

active

043333621

ABSTRACT:
The disclosed speed-shift apparatus is for a sheet winch with a drum rotatably mounted on a base and can effect the shift of the speed-change ratio and the winch winding by one hand. A one-way transmission means having pawls and pawl-engaging grooves is provided between an input shaft and the winch drum. An interrupting member is rotatably carried by the base so as to selectively disengage said pawls from said pawl-engaging grooves and the interrupting means also has grooves for engaging said pawls.

REFERENCES:
patent: Re30423 (1980-10-01), Hutton et al.
patent: 2687658 (1954-08-01), Nelson et al.
patent: 3670589 (1972-06-01), Carter
patent: 3711065 (1973-01-01), Lawrence
patent: 3728914 (1973-04-01), Guagorena et al.
patent: 3802665 (1974-04-01), Fawcett
patent: 3809368 (1974-05-01), Lawrence
patent: 3962935 (1976-06-01), Hutton et al.
patent: 3973755 (1976-08-01), Fawcett
patent: 4120486 (1978-10-01), Mehnet
patent: 4240309 (1980-12-01), Tyler

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