Fire escape – ladder – or scaffold – Unitary foldable – rigid scaffold or ladder – Trestle
Patent
1991-07-25
1992-12-15
Machado, Reinaldo P.
Fire escape, ladder, or scaffold
Unitary foldable, rigid scaffold or ladder
Trestle
182225, B27B 2100, B27H 106
Patent
active
051708612
ABSTRACT:
A quickly foldable and substantially braced sawhorse bracket, to which, in conjunction with a second, like, sawhorse bracket, are attached an elongated top beam 34 and four elongated leg members 36 to create a single, foldable sawhorse; utilizing a flat top beam attachment plate 14 and L-shaped leg attachment angle plates 22 for variety in cross-sectional dimensions of top beam 34 and leg members 36; two almost identical bracket sides 46 of bracket being pivotally joined at two points on top and hingedly joined and braced by a pivotally operating spreader brace 24 attached to lower leg plates 22. Utilization of above sawhorse in pairs as supports of considerable loads supported on top beams 34, with extreme stableness achieved by web braces 16; with a lower level of support for lighter loads being possible by position of spreader braces 24; and further additional utilization of a resultant vertical, all wood surface of leg pairs as a support and clamping station for wood doors and wood boards for work on the edges thereof.
REFERENCES:
patent: 1159299 (1915-11-01), Van Huzer
patent: 2324196 (1943-07-01), Crozier
patent: 2573740 (1951-11-01), Spikings
patent: 2666673 (1954-01-01), Hughes
patent: 2825606 (1958-03-01), Rebensdorf
patent: 2829012 (1958-04-01), Snyder
patent: 4245718 (1981-01-01), Poston et al.
patent: 4325463 (1982-04-01), Taylor
patent: 4926966 (1980-05-01), Boudreau
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