Elevator – industrial lift truck – or stationary lift for vehicle – Having specific load support drive-means or its control – Includes linking support cable in drive-means
Patent
1997-09-09
1999-07-13
Terrell, William E.
Elevator, industrial lift truck, or stationary lift for vehicle
Having specific load support drive-means or its control
Includes linking support cable in drive-means
B66B 1108
Patent
active
059213523
ABSTRACT:
A traction drive elevator system includes a device to enhance the traction forces between the ropes as the traction sheave. As a result, the traction force is the sum of the traction force caused by the tension in the ropes and the traction force caused by the traction enhancement device.
REFERENCES:
patent: 4620615 (1986-11-01), Morris et al.
patent: 5186283 (1993-02-01), Salmon
Garrido Alfonso
Sevilleja Jose
Otis Elevator Company
Terrell William E.
Tran Khoi H.
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