Elevator – industrial lift truck – or stationary lift for vehicle – Stationary lift for roadway vehicle or required component... – Having specific drive means for support
Patent
1978-04-20
1980-04-01
Truhe, J. V.
Elevator, industrial lift truck, or stationary lift for vehicle
Stationary lift for roadway vehicle or required component...
Having specific drive means for support
340 19R, B66B 300
Patent
active
041957121
ABSTRACT:
A control system for use in conjunction with several elevators which are located close to one another and are controlled independently. The elevators are provided with a call button for each elevator door on each floor. After actuating one call button, all other call buttons on that same floor are blocked from being operative for a predetermined time interval. Each call button is constructed as a parallel contact and is connected, on the one hand, by a time relay and, on the other hand, directly to an auxiliary relay wired as an interrupter. From there, the call button is connected by a call line to associated elevator controls. The call buttons may be constructed as conventional push button switches, and a control unit in the form of a common interrupter may be installed in the call line together with a time lag relay, an auxiliary relay and an OR-circuit. The arrangement may be such that after actuating one "up" button all other "up" buttons are blocked for a predetermined time interval. Similarly, after actuating one "down" button, all other "down" buttons on the same floor are blocked for the predetermined time interval.
REFERENCES:
patent: 2066908 (1937-01-01), Bouton et al.
patent: 2100736 (1937-11-01), Eames
patent: 2240044 (1941-04-01), Kramer
patent: 2742979 (1956-04-01), Santini et al.
patent: 2826751 (1958-03-01), Thurston et al.
Duncanson Jr. W. E.
Fogiel Max
Truhe J. V.
LandOfFree
Control system for a plurality of elevators does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Control system for a plurality of elevators, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control system for a plurality of elevators will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1309524