Slip-free sheave or pulley

Details Slip-free sheave or pulley Slip-free sheave or pulley

1976-03-15

1977-06-14

Gerin, Leonard H.

Machine element or mechanism

Gearing

Toothed gear and recirculated unconnected elements

74577S, 192 46, F16H 5536, G05G 100, F16D 1304

Patent

active

040289540

ABSTRACT:
A slip-free sheave or pulley has a housing forming a carrier roller with a circumferential groove and beads bulging out of the side walls of said groove. Inside the carrier roller is a control ring and a force ring arranged partially side by side. A journaled latch pawl cooperates with one of its ends with the force ring. The latching end of the pawl cooperates with a control member rotatably supported in the housing, whereby the sheave may be locked in one direction and freely rotatable in the opposite direction, or vice versa, and whereby the sheave may be controlled through the rope to be changed from one state, for example locked, into another state, for example freely running.

REFERENCES:
patent: 2770142 (1956-11-01), Margrey
patent: 2884286 (1959-04-01), Pieper
patent: 3505890 (1970-04-01), Peterson
patent: 3606938 (1971-09-01), Heyne

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