Fire escape – ladder – or scaffold – Torso harness – Strand-engaging – with descent retarder
Patent
1985-07-25
1987-05-26
Machado, Reinaldo P.
Fire escape, ladder, or scaffold
Torso harness
Strand-engaging, with descent retarder
24115M, 24136L, 188 652, A62B 3500, A62B 120, A63B 2902
Patent
active
046677720
ABSTRACT:
A mountaineering self rescue, no moving part, ascender is used in pairs in conjunction with standard mountaineering equipment, to allow a climber to ascend a safety rope without aid, beyond the belaying of the safety rope. This no moving part ascender is simple, light weight, unaffected by ice, and placed in position with one hand. The first embodiment consists of a U shaped housing, whose vertical sides extend horizontally from a vertical curved back. The interior of the curved back is serrated to increase friction and is placed to partially surround a belayed climbing or safety rope, defining a travel path for this rope. The oppositely spaced apart vertical sides, each have a mirror image longitudinal bias slot. Carabiners, with attached sling ropes, already carried by mountaineers, are snapped into the bias slots of the ascender. Then as the climber's weight is transferred from a sling rope to a carabiner, its downward travel in the bias slots of the ascender, place the carabiner into locking frictional contact with the safety rope. The second duplicate ascender of the pair is placed above, and is then moved upwardly on the safety rope by the climber. Thereafter, when the climber's weight is transferred alternately between the two ascender assemblies, the climber moves himself or herself upwardly. A second embodiment also uses carabiners and accommodates two side by side safety ropes.
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Machado Reinaldo P.
Mattern Jr. Roy E.
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