Curtain of windable oscillating blades

Details Curtain of windable oscillating blades Curtain of windable oscillating blades

1984-02-17

1987-02-10

Foss, J. Franklin

Flexible or portable closure, partition, or panel

Plural strip, slat, or panel type

Roll type

160166A, E06B 908

Patent

active

046417001

ABSTRACT:
A windable curtain or blind in which individual bands are wound or unwound on a winding tube. A torpedo device including first and second driving screws acts to reduce input rotational motion resulting from motion of a manual belt. When the belt is fully unwound the individual bands are rotated by means of a rack coupled to the second driven screw to control lighting and ventilation.

REFERENCES:
patent: 1557058 (1925-10-01), Johansen
patent: 1649943 (1927-11-01), Boeck
patent: 2100976 (1937-11-01), Norton
patent: 2207420 (1940-07-01), Thomas
patent: 2370794 (1945-03-01), Houmere
patent: 2524373 (1950-10-01), Bopp et al.
patent: 2604160 (1952-07-01), Kolterman
patent: 2605825 (1952-08-01), Armstrong
patent: 2636556 (1953-04-01), Light et al.

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