Tension fixture for a curtain

Details Tension fixture for a curtain Tension fixture for a curtain

1985-02-08

1987-12-29

Levy, Stuart S.

Implements or apparatus for applying pushing or pulling force

Apparatus for hauling or hoisting load, including driven...

Device includes rotatably driven, cable contacting drum

254333, 254370, 254372, 254387, 160344, A47H 502, B66D 1395

Patent

active

047155833

ABSTRACT:
A tensioning device for use with an endless traverse which is longitudinally adjustable in both directions responsive to a rotational drive. The rotational drive includes two driving gears which are each selectively coupled with a drive shaft so that when one of the driving gears is positively driven, the other driving gear is permitted to rotate freely. The traverse changes from one driving gear to the other by passing from between a pair of overlying side walls and over a flange. Elongation resulting from strain of the traverse is continuously led out of the system so that blocking or braking of the traverse is avoided. The tensioning device is especially suitable for the operation of strip curtains or conventional curtains, as well as for curtain systems with large and heavy traverses.

REFERENCES:
patent: 2908481 (1959-10-01), Howard
patent: 3056586 (1962-10-01), Burrows
patent: 3101625 (1963-08-01), Horvath
patent: 3561520 (1971-02-01), Gill
patent: 3929038 (1975-12-01), Moser
patent: 3945264 (1976-03-01), Falkenberg
patent: 3955347 (1976-05-01), Schippers
patent: 4098196 (1978-07-01), Weihe

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