Plural rope friction hoist with braking apparatus

Details Plural rope friction hoist with braking apparatus Plural rope friction hoist with braking apparatus

1976-12-27

1978-08-22

Blunk, Evon C.

Elevator, industrial lift truck, or stationary lift for vehicle

Stationary lift for roadway vehicle or required component...

Having specific drive means for support

187 71, 188 715, 188 725, B66B 1108

Patent

active

041082800

ABSTRACT:
A friction hoist having at least two friction wheels each carrying a rope supporting a counterbalanced conveyance includes a motor to rotationally drive at least one of the wheels. The wheels are mounted for independent rotation on a common shaft and are permitted limited axial motion with respect to one another. A braking apparatus is provided for engagement with outer faces of the wheels while opposed inner faces of adjacent wheels are provided with a braking material such that actuation of the braking apparatus forces the wheels together and the wheels are braked as a unitary structure.

REFERENCES:
patent: 1029627 (1912-06-01), Pearson
patent: 3332665 (1967-07-01), Bruns
patent: 3645519 (1972-02-01), Schwarz

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