Fire escape – ladder – or scaffold – Unitary foldable – rigid scaffold or ladder – Trestle
Patent
1982-04-27
1984-02-07
Machado, R. P.
Fire escape, ladder, or scaffold
Unitary foldable, rigid scaffold or ladder
Trestle
182181, 182225, B27B 2100, F16M 1100, A47B 3700
Patent
active
044297653
ABSTRACT:
A collapsible sawhorse is provided in which the legs are pivotally mounted relative to each other for movement between a conventional load supporting sawhorse position and a collapsed position. The collapsible sawhorse comprises a wide work supporting beam coextensive with the length and width of the device. A pair of rope lengths are provided to limit pivotal movement of the sawhorse legs. A brace selectively spans the legs to prevent inadvertent movement of the legs toward each other.
REFERENCES:
patent: 249095 (1881-11-01), Reyburn et al.
patent: 1685372 (1928-09-01), Davis
patent: 1880909 (1932-10-01), Dunlap
patent: 2817486 (1957-12-01), Skreberg
patent: 2829927 (1958-04-01), Sword
patent: 3696887 (1972-10-01), Brzykcy
patent: 3734235 (1973-05-01), Lanier
patent: 4071113 (1978-01-01), Pelser
patent: 4085762 (1978-04-01), O'Brien
patent: 4245718 (1981-01-01), Poston
Machado R. P.
Moller G. Turner
Ramos Homer
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