Portable personnel platform and ladder

Details Portable personnel platform and ladder Portable personnel platform and ladder

1980-03-28

1981-03-03

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Ladder and platform

182152, 182196, 182 63, E06C 1393, E06C 156

Patent

active

042535476

ABSTRACT:
A portable personnel platform and ladder for use with elevated piers and ating decks has one end of a compression framework pivotally attached to a rope ladder supporting platform which extends over the pier's edge; adjustable wire backstays which provide cantilever strength connect the opposite end of the compression framework to the upper end of railings on the ladder supporting platform. The opposite end of the compression framework is adapted to have weight added thereto or to be secured to the pier deck. The length of the compression framework is such that considerable leverage is provided to support the weight of several people climbing on the rope ladder attached to the supporting platform while using much less counter-balancing force on the opposite end of the compression framework.

REFERENCES:
patent: 260627 (1882-07-01), Townsend
patent: 2979154 (1961-04-01), Bell
patent: 3480107 (1969-11-01), Goodhue
patent: 3777846 (1973-12-01), Josephson
patent: 3961686 (1976-06-01), Starkey
patent: 4022292 (1977-05-01), Van Gompel
patent: 4139080 (1979-02-01), Wells

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