Self-braking safety apparatus for the rapid descent of persons i

Details Self-braking safety apparatus for the rapid descent of persons i Self-braking safety apparatus for the rapid descent of persons i

1987-05-14

1988-03-08

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Torso harness

Attached to strand wound on reel, and means for retarding...

182235, 182239, 182240, 188 653, A62B 110

Patent

active

047294540

ABSTRACT:
A self-braking apparatus is provided for cases of emergency in which a rapid descent of persons threatened by fire or danger is required on the outside of buildings or the like. The apparatus can be secured to a fixed point from which the descent is to be made and comprises a rotor on which a rope is wound which is mounted coaxially and inwardly of a drum. A heat-resistant handle and a brake which can be actuated by the user are secured to the drum by brackets. The rotor is provided with a plurality of radial holes each containing a spring urging a brake pad outwardly against the inner surface of the drum. The brake which can be actuated by the user is formed by a pair of levers pivotally connected to each other and acting with one of their ends on rods having an inclined plane in turn acting on brake pads urged against the lateral surface of the drum by the rods. When the hand brake is released, the rotation of the rotor and centrifugal force generated thereby exert braking action against the inner surface of the drum to produce a constant speed of descent of about 2.5 m/sec.

REFERENCES:
patent: 522990 (1894-07-01), Kopp
patent: 2122315 (1938-06-01), Fosty
patent: 2205026 (1940-06-01), Barham
patent: 2518934 (1950-08-01), Renner
patent: 2561832 (1951-07-01), Wilson
patent: 4063615 (1977-12-01), Knepp
patent: 4359139 (1982-11-01), Bloder
patent: 4457400 (1984-07-01), Donaldson
patent: 4487292 (1984-12-01), Smith

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