Fire escape – ladder – or scaffold – Torso harness – Strand-engaging – with descent retarder
Patent
1977-06-17
1978-05-23
Machado, Reinaldo P.
Fire escape, ladder, or scaffold
Torso harness
Strand-engaging, with descent retarder
188 651, B65H 5916
Patent
active
040905845
ABSTRACT:
A single piece safety brake having no moving parts for attachment between a safety line secured to a structure and a safety belt line worn by an aerial workman to prevent falls by the workman. The brake comprises a hollow helical guide member with an arcuate axis adapted to permit the safety line to be passed therethrough. A connecting eyelet may be located at one end of the guide member for connecting the safety belt line thereto. A serrated opening having inwardly projecting teeth is provided opposite the eyelet for exerting a drag on the safety line. The brake may be placed at any position on the safety line and easily moved there along by the workman. A downward force applied to the eyelet causes the brake to assume a substantially horizontal position, bringing the inwardly projecting teeth into contact with the safety line to exert a drag thereon and prevent downward movement of the brake along the safety line.
REFERENCES:
patent: 1103849 (1914-07-01), Stenborg
patent: 2172094 (1939-09-01), Voigt
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