Elevator – industrial lift truck – or stationary lift for vehicle – Stationary lift for roadway vehicle or required component... – Having specific drive means for support
Patent
1990-12-04
1992-06-02
Olszewski, Robert P.
Elevator, industrial lift truck, or stationary lift for vehicle
Stationary lift for roadway vehicle or required component...
Having specific drive means for support
187 94, B66B 1104
Patent
active
051179458
ABSTRACT:
A non-box-counterweight apparatus for a traction type elevator has a counterweight-side hoisting rope and a counterweight-side compensating rope with a total weight between about three and seven times the weight of the maximum cage load. The weight of the counterweight-side ropes serves a counterweighting function, and a guided box-type counterweight is unnecessary.
REFERENCES:
patent: 1978273 (1934-10-01), Lundberg et al.
patent: 4716989 (1988-01-01), Coleman et al.
Mitsubishi Denki & Kabushiki Kaisha
Noland Kenneth
Olszewski Robert P.
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