Fire escape – ladder – or scaffold – Ladder with vertically moving platform or escape – Ladder supports platform
Patent
1992-05-28
1994-01-04
Johnson, Blair M.
Fire escape, ladder, or scaffold
Ladder with vertically moving platform or escape
Ladder supports platform
182129, 248238, 104246, E06C 716
Patent
active
052752569
ABSTRACT:
An apparatus having first and second floor plates defining a floor opening to receive a ladder therethrough is provided, with the floor plates having first and second side plates mounted to opposed ends of the floor plates, with the side plates arranged in a parallel coextensive relationship. At least one of the side plates includes a support container, and optionally, both side plates may include support containers hingedly mounted to permit pivotment together in adjacency forwardly of the apparatus. Roller structure is mounted interiorly of the side plates to guide and direct ladder legs of the ladder within the floor opening. Further, a brake lever is arranged for engagement relative to a rear wheel guide for selective positioning of the organization relative to the ladder. A floor hook cooperative with a ladder rung pulley for selective securement to an associated ladder rung is arranged to permit selective lifting of the carriage apparatus relative to the ladder.
REFERENCES:
patent: 2438791 (1948-03-01), Russell
patent: 3437314 (1969-04-01), Minor
patent: 4550806 (1985-11-01), Bocker
Gilden Leon
Johnson Blair M.
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