Fire escape – ladder – or scaffold – Means maintaining step lever on horizontally pivoted ladder
Patent
1985-03-14
1986-02-25
Machado, Reinaldo P.
Fire escape, ladder, or scaffold
Means maintaining step lever on horizontally pivoted ladder
182113, 182141, E04G 118, E04G 126
Patent
active
045723281
ABSTRACT:
This invention relates to a platform and more particularly to a vertically adjustable safety platform assembly for obtaining safety railing enclosed access to the tops of mobile equipment of various heights such as tank trucks and railroad tank and hopper cars. The assembly includes an elevated platform portion for obtaining access to the tops of mobile equipment, and a ladder for obtaining access to the platform. The platform is mounted on a column on guide rails, such platform being power driven by controls either from below or from the platform. The platform includes safety railings along the perimeter of the platform which extend beyond the perimeter so that when the platform is positioned on top of the mobile equipment a safety railing enclosure is provided.
REFERENCES:
patent: 2326052 (1943-08-01), Moore
patent: 2466155 (1949-04-01), Conrad
patent: 2726123 (1955-12-01), Mathews
patent: 2732118 (1956-01-01), Reinhardt
patent: 3749201 (1973-07-01), Clarke
patent: 4013140 (1977-03-01), Pradon
patent: 4168764 (1979-09-01), Walters
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