Fire escape – ladder – or scaffold – Safety device for ground-supported ladder
Patent
1981-06-30
1983-04-12
Machado, Reinaldo P.
Fire escape, ladder, or scaffold
Safety device for ground-supported ladder
182206, 182214, E06C 748
Patent
active
043794980
ABSTRACT:
A safety device for ladders to prevent slippage when placed against a tree or pole is disclosed. Means for gripping the tree is connected to a holding member A and lies generally perpendicular to the rungs L of the ladder. The holding member A is rotatably fastened to the top rung of the ladder for rotational movement about a longitudinal axis of the rung. In a preferred embodiment, the gripping means comprises a plurality of sharp teeth B disposed along the side edges of the holding member A. The holding member A is arcuately shaped for conforming engagement with the tree when the tree has such a small diameter that the teeth B do not engage the tree. In another embodiment, the holding member A is rotatably fastened to an elongate member C. The elongate member C is then fastened to the side rails I of the ladder generally parallel to the rungs L.
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