Fire escape – ladder – or scaffold – Wall- or floor-attached – Independent rung or step
Patent
1976-08-02
1977-06-07
Machada, Reinaldo P.
Fire escape, ladder, or scaffold
Wall- or floor-attached
Independent rung or step
B60R 300
Patent
active
040277429
ABSTRACT:
An improved cleat for climbing trees and the like having a shank adapted to be supported in suspended relation from a chain passed around the trunk and connected to opposite ends of a transversely oriented cross bar rigidly affixed to the uppermost end of the shank. A step projects horizontally from the lower most end of the shank and is stabilized through combined stabilizing effects of a downwardly projected heel and the cross bar.
REFERENCES:
patent: 1559842 (1925-11-01), Bollinger
patent: 3283852 (1966-11-01), Merz
patent: 3598201 (1971-08-01), Thurmond
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