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
1993-09-24
1994-12-06
Noland, Kenneth W.
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
187256, 187263, 182148, B66B 1104
Patent
active
053702069
ABSTRACT:
A driving system for elevators includes a cab, a pair of chain suspenders on the bottom of the cab and suspended from the roof of a building, a synchronized transmission device having a plurality of gears and chain wheels of different diameters, connected on one hand with a d/c motor and on the other hand via a pair of shafts and driving chains with chain suspenders, a plurality of retarders coupled with respective suspenders and a set of counter weights adjacent the cab and supported by a pair of pulleys on the roof of a building. This disclosure has been characterized in the structure of the synchronized transmission device which is designed as a labor saving mechanism, in addition to the installation of the retarders and the set of counter weights the cab can be operated by a d/c motor or by manual manipulation.
REFERENCES:
patent: 586187 (1897-07-01), Hill et al.
patent: 5044473 (1991-09-01), Gripe
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