Portable climbing device

Details Portable climbing device Portable climbing device

1975-12-04

1978-08-29

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Wall- or floor-attached

Independent rung or step

E06C 708

Patent

active

041097610

ABSTRACT:
A portable climbing device for facilitating the climbing of a tree is made of an L-shaped bracket and a chain for securing the L-shaped bracket to the tree. At one of the ends of the L-shaped bracket there is a curved camming surface for bearing against the tree and the chain after being wrapped around the tree is attached to this end so that the L-shaped bracket can be moved between a first position in which the chain is loosely wrapped around the tree to a second position in which the chain is tightly wrapped around the tree.

REFERENCES:
patent: 527763 (1894-10-01), Berg
patent: 557955 (1896-04-01), Boyer
patent: 985079 (1911-02-01), Venard
patent: 2097562 (1937-11-01), Day
patent: 2241695 (1941-05-01), Barton
patent: 3298459 (1967-01-01), Bergsten

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