Fire escape – ladder – or scaffold – Wall- or floor-attached – Ladder
Patent
1975-04-11
1976-12-14
Machado, Reinaldo P.
Fire escape, ladder, or scaffold
Wall- or floor-attached
Ladder
182 18, 182 70, 182195, E06C 906
Patent
active
039970264
ABSTRACT:
A collapsible ladder assembly suitable for installation on high-rise buildings and capable of modification to be architecturally unobstrusive and compatible with a variety of architectural designs is described. The ladder assembly comprises a frame member, two or more telescoping stile pair sections and a plurality of rung members. In the normal storage position the ladder is disposed entirely within the frame member with the telescoping stile members in the retracted position. The entire unit is adapted to fit within a window opening. In a emergency the ladder can be released to the extended position for use from inside a window whereby it falls on hinged arms down and away from the building at a distance sufficient to permit passage of a person between the building and the ladder. Release of one ladder actuates a release mechanism on the similarly mounted ladder on the floor below and so on, allowing an escape passage to a safe level or, if necessary, to the ground.
REFERENCES:
patent: 268078 (1882-11-01), Bushnell
patent: 887550 (1908-05-01), Broekhoven
patent: 1015173 (1912-01-01), Grunbaum
patent: 3061042 (1962-10-01), Giles
patent: 3136386 (1964-06-01), Horvath
patent: 3392380 (1968-07-01), Fordyce
patent: 3601220 (1971-08-01), Saucier
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