Fire escape – ladder – or scaffold – Safety device for ground-supported ladder – Terminal foot or shoe
Patent
1991-08-01
1992-10-13
Machado, Reinaldo P.
Fire escape, ladder, or scaffold
Safety device for ground-supported ladder
Terminal foot or shoe
E06C 742
Patent
active
051542552
ABSTRACT:
A ladder shoe for providing enhanced stability between a ladder and a variety of surfaces. The ladder shoe is comprised of a shoe body having a first side plate, a second side plate and a base. The first side plate and the second side plate are attached to the base. The side plates include curved slots through which a fastener is disposed which movably connects the ladder shoe to the end of the ladder's side rail, thereby allowing the ladder shoe to move between a first position where the base is at a first angle with respect to the side rail and a second position where the base is at a second angle with respect to the side rail. Each slot has a notch in which the fastener catches causing the shoe to be maintained in an intermediate position until the shoe body is desired to be placed into another position. The base has a bottom which provides a slip resistant surface for engaging the shoe body to essentially flat surfaces when the shoe body is in the first position. Preferably, a spur plate is provided for engaging the shoe with penetrable surfaces when the shoe body is in a second position extending from the base. There is also a method and system involving the same.
REFERENCES:
patent: 1973226 (1934-09-01), Rose
patent: 2309484 (1943-01-01), Van Meter
patent: 2691479 (1954-10-01), Sharp
patent: 3456757 (1969-07-01), Sain
Kiska Stanley A.
Sulecki Richard P.
Machado Reinaldo P.
R. D. Werner Co., Inc.
Schwartz Ansel M.
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