Fire escape – ladder – or scaffold – Unitary foldable – rigid scaffold or ladder – Trestle
Patent
1979-07-12
1981-04-07
Machado, Reinaldo P.
Fire escape, ladder, or scaffold
Unitary foldable, rigid scaffold or ladder
Trestle
182184, 182225, F16M 1124
Patent
active
042600383
ABSTRACT:
A pair of triangular supports are provided with cross member sockets on the upper ends thereof. A cross bar extends between the end supports and is pivoted to each so that they can be folded downwardly upon the cross bar for storage. Braces are pivoted by the lower ends thereof to the cross bar and are pinned to the end supports when same are erected. A wooden beam or the like then engages the sockets to form the complete sawhorse.
REFERENCES:
patent: 416544 (1889-12-01), Banks
patent: 462581 (1891-11-01), Peck
patent: 3637045 (1972-01-01), Poffenbaugh
Ade Stanley G.
Machado Reinaldo P.
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