Movable or removable closures – With operator for movably mounted closure – Operator drives closure along guide
Patent
1975-10-20
1977-09-27
Downey, Kenneth
Movable or removable closures
With operator for movably mounted closure
Operator drives closure along guide
49118, 49123, E05F 1514
Patent
active
040501914
ABSTRACT:
A drive assembly, driven assembly and track assembly are provided separately for ready installation on a doorframe to support and drive a pair of overhung doors. The drive assembly comprises a pulley and its drive mechanism which are mounted on a common bracket to be fastened to one of the jambs of the doorframe, whereas the driven assembly includes an idler pulley mounted on another bracket to be fastened to the other jamb. The track assembly comprises a rail bolted at both ends to the two brackets, and two pairs of door hangers in rolling engagement with the rail for suspending the respective doors therefrom. The door hangers are attached to an endless wire rope extending around the pulleys.
REFERENCES:
patent: 1966182 (1934-07-01), McCormick
patent: 3172651 (1965-03-01), Wilson
Downey Kenneth
Yoshida Kogyo K.K.
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