Fire escape – ladder – or scaffold – Torso harness – Strand-engaging – with descent retarder
Patent
1981-02-17
1983-05-31
Machado, Reinaldo P.
Fire escape, ladder, or scaffold
Torso harness
Strand-engaging, with descent retarder
188 652, A62B 114
Patent
active
043856799
ABSTRACT:
There is claimed a descent control device which comprises a rope along which a person desires to descend from an elevated position; a housing substantially cylindrical in shape; attachment means to attach the person to the housing; a guide means mounted axially within the housing and providing an open channel between the two ends of the housing, and having the rope passing through the open channel thereby slidably attaching the housing to the rope; a crank which has a knuckle formed into a rotating shaft so that rotation of the crank urges the knuckle against the rope, thereby providing friction between the rope and the housing so as to provide a safe descent along the rope for the person; and a spring which urges the knuckle against the rope so as to make use of the device safe for an incapacitated person.
REFERENCES:
patent: 465464 (1891-12-01), Dixon
patent: 482813 (1892-09-01), Schwarz
patent: 1766566 (1930-06-01), Tucker
patent: 3179994 (1965-04-01), Meyer
patent: 3335469 (1967-08-01), Shand et al.
patent: 3389765 (1968-06-01), Pressley
patent: 3861497 (1975-01-01), Tsai
patent: 3889777 (1975-06-01), George
patent: 3927734 (1975-12-01), Brunette et al.
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