Fire escape – ladder – or scaffold – Unitary foldable – rigid scaffold or ladder – Trestle
Patent
1985-05-17
1986-08-12
Machado, Reinaldo P.
Fire escape, ladder, or scaffold
Unitary foldable, rigid scaffold or ladder
Trestle
182181, 182225, B27B 2100, F16M 1100
Patent
active
046050990
ABSTRACT:
A support bracket for a sawhorse, by which the legs are connected to the spine rail of the sawhorse, and provide full collapsibility of the legs. In a preferred embodiment, the bracket has an intermediate panel and side panels, in an overall generally U-shape, with the intermediate panel disposed generally vertically, and transversely of the axis of the spine rail; and the side panels, which extend from the intermediate panel, pivotally carry the sawhorse legs. Co-operative latch components of the side panels and the legs latchingly hold the legs in optionally an extended position or in a retracted position generally juxtaposed along the spine rail, providing that the sawhorse may be easily changed from a conventional erect condition to a collapsed condition in which the entire assembly occupies scarcely any more space than the spine rail of the sawhorse; and the latch has a special feature which permits that fullness of leg-collapse regardless of which of the legs are first moved to collapsed position.
REFERENCES:
patent: 199320 (1878-01-01), Seng
patent: 1435738 (1922-11-01), Reiman
patent: 1818629 (1931-08-01), Knapp
patent: 2651487 (1953-09-01), Loock
patent: 2794688 (1957-06-01), Scott
patent: 2824771 (1958-02-01), Blenski
patent: 3269487 (1966-08-01), Larson
patent: 4144822 (1979-03-01), Roberts
patent: 4152834 (1979-05-01), Stansberry
patent: 4489808 (1984-12-01), Voye
Crum Wesley W.
Fraley Gary L.
Machado Reinaldo P.
Spray Robert A.
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