Control system for elevator cage guide magnets

Details Control system for elevator cage guide magnets Control system for elevator cage guide magnets

1987-06-12

1988-07-05

Bartuska, F. J.

Elevator, industrial lift truck, or stationary lift for vehicle

Stationary lift for roadway vehicle or required component...

Having specific drive means for support

104293, B66B 704

Patent

active

047548495

ABSTRACT:
Continuous, vertically tensioned steel cables 31, 32 or straps 39, 40, 41 mounted in an elevator shaft 2 serve as tracking standards for air gap detectors 33, 34, 35 mounted to a passanger cage 5. The detector outputs differentially control electromagnet pairs 6, 7, 8 mounted on the cage and cooperable with vertical guide rails 1 to maintain the sensed air gaps at a constant, predetermined value.

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