Fire escape – ladder – or scaffold – Scaffold external of shaft
Patent
1983-06-14
1984-11-27
Machado, Reinaldo P.
Fire escape, ladder, or scaffold
Scaffold external of shaft
108152, A45F 326, A47C 910
Patent
active
044846606
ABSTRACT:
A stand, for supporting a person on a vertical post such as a hunter in a tree, including a platform having a generally horizontal top surface upon which the hunter stands and a support assembly below the platform including a pair of struts providing load-bearing support between the platform and the tree. A cable which extends around the tree opposite the platform has a first end attached to the platform and a second end attached to a cable tensioning arrangement which is mounted on the platform. The cable tensioning arrangement includes a lever pivotally attached to the platform and a drawbar which is pivotally attached at a first end to the lever, at a point spaced outwardly from the platform, and which has a second end upon which is affixed a spool to which the second end of the cable is attached. The cable is tightened about the spool with the lever in a first position, extending generally outwardly from the platform, and the lever is then pivoted away from the tree and toward the platform to move the drawbar and spool away from the tree to substantially increase the cable tension about the tree. The thus-tensioned cable prevents slippage of the tree-engaging edge of the platform in a vertical direction along the tree. The tree-contacting elements of the tree stand are padded to prevent damage to the tree, and the lever may be locked in its cable-tensioning position to prevent removal of the tree stand from the tree.
REFERENCES:
patent: 1515831 (1924-11-01), Bush
patent: 1542548 (1925-06-01), Gordon
patent: 1826120 (1931-10-01), Booth
patent: 2375685 (1945-05-01), Pennington
patent: 3885649 (1975-05-01), Damron
patent: 4244445 (1981-01-01), Strode
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