Pulley lift assembly and curtain system employing same

Details Pulley lift assembly and curtain system employing same Pulley lift assembly and curtain system employing same

1976-10-21

1977-12-13

Spar, Robert J.

Implements or apparatus for applying pushing or pulling force

Step-by-step traveling bar

Pawl actuated

24 81CC, 24263A, 248228, 254190R, B66C 2360

Patent

active

040625192

ABSTRACT:
A multifunctional pulley lift assembly is provided for supporting and lifting a foldable curtain. The assembly is easily attached to an overhead structural beam by means of a horizontally adjustable clamp mechanism. A plurality of said pulley lift assemblies, in proper alignment and provided with lifting cables, are utilized in a curtain raising system wherein said cables are guided by said pulley lift assemblies to a winch mechanism.

REFERENCES:
patent: 535277 (1895-03-01), Doran et al.
patent: 1132999 (1915-03-01), Beers
patent: 1651985 (1927-12-01), Allen
patent: 1820322 (1931-08-01), Polkosnik
patent: 2553630 (1951-05-01), Capetta
patent: 2877974 (1959-03-01), Estes
patent: 3120895 (1964-02-01), Mahana et al.

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