Fire escape – ladder – or scaffold – Torso harness – Strand-engaging – with descent retarder
Patent
1983-08-26
1984-10-16
Machado, Reinaldo P.
Fire escape, ladder, or scaffold
Torso harness
Strand-engaging, with descent retarder
182 72, 182193, 188 655, A62B 114, A62B 120
Patent
active
044769563
ABSTRACT:
A slide for frictionally engaging a flexible line to control a person's descent along the line. An outer shell has a helical opening in one side with a longitudinal offset at its lower end for receiving the line. An inner friction member, which is adjustable rotationally and longitudinally inside the outer shell, has a transverse slot in its inner end and a helical screw thread behind for frictionally receiving the line. Indicia on the friction member are visible at an opening in the outer shell to show the body weight for which the slide has been adjusted. The slide has a fail-safe lock acting between the outer shell and the friction member.
REFERENCES:
patent: 219511 (1879-09-01), Petterson
patent: 263100 (1882-08-01), Beebe
patent: 287491 (1883-10-01), Woodward
patent: 1059754 (1913-04-01), Paquet
patent: 1135248 (1915-04-01), Ball
patent: 1187754 (1916-06-01), Lyra
patent: 3220511 (1965-11-01), Holkesvick
patent: 3550726 (1970-12-01), Chezen
patent: 3765507 (1973-10-01), Rabelos
patent: 4024927 (1977-05-01), Sheppard
patent: 4056166 (1977-11-01), Rabelos
patent: 4102431 (1978-07-01), Carroll
patent: 4399889 (1983-08-01), Todd
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