Elevator – industrial lift truck – or stationary lift for vehicle – Stationary lift for roadway vehicle or required component... – Having specific drive means for support
Patent
1991-05-31
1992-02-11
Pellinen, A. D.
Elevator, industrial lift truck, or stationary lift for vehicle
Stationary lift for roadway vehicle or required component...
Having specific drive means for support
187121, B66B 118
Patent
active
050868837
ABSTRACT:
A group control for double car elevators permits the upper as well as the lower cars to be used at a main stopping floor for travel to both even-numbered and odd-numbered floors. The control has a call memory for each car in which the target calls entered at the main stopping floor and identifying the target floors are stored. A switching circuit has an input connected to the call memories in such a manner that the double car is scheduled in dependence on the allocated call as stopping at floor pairs numbered even-odd or odd-even. An output of the switching circuit is connected to a switching device which excludes either the double cars stopping at floor pairs numbered even-odd or at floor pairs numbered odd-even from the allocation process in the case of a subsequent call to be allocated in order to maximize the possiblilities for coincident stops without losing flexibility.
REFERENCES:
patent: 4632224 (1986-12-01), Novak et al.
patent: 4836336 (1989-06-01), Schroder
patent: 4993518 (1991-02-01), Straaten et al.
Clemens William J.
Colbert Lawrence E.
Inventio AG
Pellinen A. D.
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