Elevator door safety mechanism

Details Elevator door safety mechanism Elevator door safety mechanism

1978-11-02

1980-10-21

Scherbel, David A.

Elevator, industrial lift truck, or stationary lift for vehicle

Stationary lift for roadway vehicle or required component...

Having specific drive means for support

70 91, B66B 1300

Patent

active

042288738

ABSTRACT:
An elevator shaft door safety mechanism which permits the shaft door to be opened by authorized persons when the elevator is not in place. The mechanism is particularly suitable for use with doors of the hingedly mounted type. The mechanism is lock controlled and permits manual operation of the latching mechanism with the use of a special tool.

REFERENCES:
patent: 1887016 (1932-12-01), Hagstrom et al.
patent: 2098189 (1937-11-01), Kistner
patent: 2313172 (1943-03-01), Rechberger
patent: 3298210 (1967-01-01), Nyborg
patent: 3973420 (1976-08-01), Brady et al.

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