Fire escape – ladder – or scaffold – Torso harness – Strand-engaging – with descent retarder
Patent
1982-09-30
1984-07-10
Machado, R. P.
Fire escape, ladder, or scaffold
Torso harness
Strand-engaging, with descent retarder
182 10, 182239, 182234, 182 8, A62B 110, A62B 3502
Patent
active
044587813
ABSTRACT:
A novel controlled descent device is disclosed which not only aids in the ascent of a human being from a lower elevation to an upper elevation but also provides for the safe descent of a human being from the upper level to the lower level. The apparatus comprises a round cable, a counterweight, a controlled descent pulley having a ratchet and pawl brake system and a conventional pulley; all operating conjunctly dependently on the position and situation of the human being. The controlled descent pulley and conventional pulley are held in a plate structure which is secured to the upper elevation. The counterweight is raised and lowered from the upper elevation to the lower elevation and vice-versa by means of a guy wire which is anchored and held in relatively taught position between said upper elevation and said lower elevation.
REFERENCES:
patent: 511896 (1894-01-01), Killeen
patent: 1849725 (1932-03-01), Quick
patent: 2280396 (1942-04-01), Gentry
patent: 2538904 (1951-01-01), Herod
patent: 3467224 (1969-09-01), Curtis
patent: 3826335 (1974-07-01), Allen
patent: 3908791 (1975-09-01), Kleine
patent: 3946989 (1976-03-01), Tsuda
patent: 4111281 (1978-09-01), Jacobs
patent: 4252214 (1981-02-01), Miller
Ellis J. Nigel
Ostrobrod Meyer
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