Elevator door configuration

Details Elevator door configuration Elevator door configuration

1984-01-06

1986-06-10

Rolla, Joseph J.

Elevator, industrial lift truck, or stationary lift for vehicle

Stationary lift for roadway vehicle or required component...

Having specific drive means for support

49352, B66B 1300

Patent

active

045937931

ABSTRACT:
The directional stability of a horizontally-moved door is maintained by cables that are directed around rollers which are concealed in the door; the cables are concealed in the door by one or more tracks that extend in the direction in which the door is propelled; and rollers that are on the door follow one of the tracks to guide the door and support its weight.

REFERENCES:
patent: 1710442 (1929-04-01), Warshaw
patent: 2978019 (1961-04-01), Carlo
patent: 3405782 (1968-10-01), Berkovitz et al.
patent: 3426480 (1969-02-01), Dzamba
patent: 4001971 (1977-01-01), Gobush et al.

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