Elevator – industrial lift truck – or stationary lift for vehicle – Stationary lift for roadway vehicle or required component... – Having specific drive means for support
Patent
1988-02-16
1989-06-27
Shaver, Kevin P.
Elevator, industrial lift truck, or stationary lift for vehicle
Stationary lift for roadway vehicle or required component...
Having specific drive means for support
254338, 474 68, B66B 1104
Patent
active
048421014
ABSTRACT:
Methods and apparatus for increasing the tractive force between the wire hoist ropes and the drive sheave of a traction elevator system which includes an elevator car and a counterweight. The drive sheave is disposed between first and second idler or secondary sheaves, and the car and counterweight are roped via successive first and second 180 degree wraps about the drive sheave, with the first 180 degree wrap including the drive sheave and one of the idler sheaves, and the second 180 degree wrap including the drive sheave and the remaining idler sheave. The drive sheave is thus roped with a wrap of approximately 360 degrees, which remains constant regardless of the spacing between the elevator car and counterweight.
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Lackey D. R.
Noland Kenneth
Shaver Kevin P.
Westinghouse Electric Corp.
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