Fire escape – ladder – or scaffold – Wall- or floor-attached – Independent rung or step
Patent
1985-12-23
1986-10-21
Machado, Reinaldo P.
Fire escape, ladder, or scaffold
Wall- or floor-attached
Independent rung or step
248231, A63B 2904, A01M 3100
Patent
active
046180281
ABSTRACT:
A tree step which provides a safe and efficient method for a person to climb a tree without inflicting damage to the tree. The device comprises a frame having a pair of hooks thereon, a landing projecting from the frame for placement of a foot, and a line for securing the frame to the tree. The line is secured at one end to the frame and has an intermediate reach which encircles the tree and a free end reach which is adapted to be wound a plurality of times around the hooks. The frame is then moved relative to the tree to lock the line in place around the hooks.
REFERENCES:
patent: 939318 (1909-11-01), Redman
patent: 1153750 (1915-09-01), Berry
patent: 4027742 (1977-06-01), House
patent: 4109761 (1978-08-01), Matlock
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