Machine element or mechanism – Gearing – Toothed gear and recirculated unconnected elements
Patent
1976-09-13
1978-02-21
Gerin, Leonard H.
Machine element or mechanism
Gearing
Toothed gear and recirculated unconnected elements
7423017M, F16H 5536, F16H 5552
Patent
active
040745821
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.
REFERENCES:
patent: 3836120 (1974-09-01), Niskin
patent: 3966170 (1976-06-01), McKenna
Gerin Leonard H.
N.V. Western Gear Europe S.A.
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