Fire escape – ladder – or scaffold – Means maintaining platform level on angularly movable support – Swingable support
Patent
1976-12-23
1977-11-29
Machado, Reinaldo P.
Fire escape, ladder, or scaffold
Means maintaining platform level on angularly movable support
Swingable support
182117, 182127, B66F 1104
Patent
active
040601480
ABSTRACT:
A portable collapsible scaffold structure is adapted to be supported in use upon and transported by a truck or other self-powered ground vehicle, and includes a pair of extensible ladders adapted to be mounted in use adjacent to the vehicle and coupled thereto by extensible support means for raising and lowering the ladders simultaneously, the ladders supporting between their upper ends a work platform. Extensible support posts support the ladders intermediate the ends thereof and are coupled to extensible carriage means which support the lower ends of the ladders for movement along the ground or other support surface during raising and lowering of the ladders. The entire structure is hydraulically operated and control means coupled to the ladders and the platform maintain the platform substantially horizontal during raising and lowering of the ladders. The entire scaffold structure can be readily disassembled and stored on the associated vehicle for transportation thereby.
REFERENCES:
patent: 578848 (1897-03-01), Woods
patent: 2787278 (1957-04-01), Mitchell
patent: 3340960 (1967-09-01), Wilson
patent: 3529694 (1970-09-01), Atchey
patent: 3826334 (1974-07-01), Spillman
Machado Reinaldo P.
Sandler Ronald A.
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