Hoisting device

Details Hoisting device Hoisting device

1978-11-08

1982-10-05

Braun, Leslie

Endless belt power transmission systems or components

Pulley with belt-receiving groove formed by drive faces on...

Members are gripping jaws actuated during each rotation of...

474 9, 226200, F16H 5536, F16H 5562

Patent

active

RE0310506

ABSTRACT:
[The invention pertains to a hoisting device, characterized by the fact that it mainly consists of a housing to which the load is suspended, and in this housing a driving pulley consisting of two half pulleys for the cable, which is suspended from a fixed point, whereby this driving pulley is provided with means which press the cable uniformly or practically uniformly into the driving pulley over a large arc, and with means which press aforesaid half pulleys away from each other at the locations where the cable enters and leaves the pulley, in such a manner that no friction occurs when the cable enters or leaves the driving pulley, whereby this pressing apart is performed in such a manner that no or practically no increase of pressure occurs on the cable on the other side of the pulley.]
A hoisting device having axially separable rotatable pulley portions jointly defining a cable groove and including first means to separate the pulley portions during one portion of pulley rotation to provide space for a cable to enter and leave the groove and having other means to bias the pulley portions towards each other in the other portions of pulley rotation to grip the cable in the groove.

REFERENCES:
patent: 3034767 (1962-05-01), Gordon
patent: 3249335 (1966-05-01), Eisenhauer
patent: 3250514 (1966-05-01), Hamalainen
patent: 3382398 (1968-05-01), Austin et al.
patent: 3635441 (1972-01-01), Haines
patent: 3836120 (1974-09-01), Niskin
patent: 3861228 (1975-01-01), Adams
patent: 3965767 (1976-06-01), Rinio
patent: 3966170 (1976-06-01), McKenna
patent: 4077271 (1978-03-01), Mathews

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