Fire escape – ladder – or scaffold – Unitary foldable – rigid scaffold or ladder – Trestle
Patent
1975-07-07
1976-09-07
Machado, Reinaldo P.
Fire escape, ladder, or scaffold
Unitary foldable, rigid scaffold or ladder
Trestle
182186, 182226, F16M 1100
Patent
active
039789438
ABSTRACT:
The specification discloses a bracket assembly for supporting a pair of legs on either side of a beam to form a collapsible sawhorse, barricade, or the like in which the legs can be pivoted between folded and upright positions. The assembly includes a beam support bracket, for supporting a beam, and a pair of leg support brackets each pivotally interconnected to one side of the beam support bracket by a swivel bracket. Means are included for positioning each swivel and leg bracket unit in an upright position, for restraining outward flexing of said swivel brackets in the upright position, and for preventing pivotal movement of said swivel and leg bracket units out of the upright position when the leg brackets engage the beam support bracket.
REFERENCES:
patent: 1656558 (1928-01-01), Dysinger
patent: 1881755 (1932-10-01), Logan
patent: 2824719 (1958-02-01), Nutting
Greenman James R.
Pelky Philip J.
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