Fire escape – ladder – or scaffold – Scaffold external of shaft
Patent
1986-02-10
1986-12-02
Machado, Reinaldo P.
Fire escape, ladder, or scaffold
Scaffold external of shaft
108152, A01M 3102, A45F 326
Patent
active
046258337
ABSTRACT:
A portable tree seat has a generally flat platform with a back edge for engaging a post or tree and is held in position on the tree by a rope. A flexible strap is secured to the platform near its front edge and extends to the back edge of the platform where it is adjustably secured in position by being passed through a pair of slots formed in the platform. A rigid elongated brace is attached to the flexible strap and is cradled therein between the positions of securement of the strap to the platform. When the back edge of the platform is held in position on a tree, the flexible strap may be adjusted such that the brace is held by the strap in a position engaging the tree at its back end and extending up to a position supporting the platform at its front end so that the platform is held in a substantially horizontal position. The brace is held only by the strap so that the brace may shift to its most stable position when the platform is loaded.
REFERENCES:
patent: 2711783 (1955-06-01), Prill
patent: 3115213 (1963-12-01), Cloutier
patent: 3730294 (1973-05-01), Thurmond
patent: 3749200 (1973-07-01), Meyer
patent: 3885649 (1975-05-01), Damron
patent: 3927733 (1975-12-01), Wurn et al.
patent: 3990537 (1976-11-01), Swenson
patent: 4113057 (1978-09-01), Bessinger
patent: 4113058 (1978-09-01), Kobosh
patent: 4484660 (1984-11-01), Baynum
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