Fire escape – ladder – or scaffold – Torso harness – Strand-engaging – with descent retarder
Patent
1984-02-22
1985-04-02
Machado, Reinaldo P.
Fire escape, ladder, or scaffold
Torso harness
Strand-engaging, with descent retarder
188 654, A62B 116
Patent
active
045081930
ABSTRACT:
This invention relates to a stationary drum friction-type descent control device for use with a rope and a load-supporting harness characterized by a dogleg arm hanging from one end of a cylindrical friction drum in acute angular relation to its axis cooperating therewith to leave the other end open so that turns of an unloaded medial section of a rope can be added or subtracted therefrom while under load without having to unthread and subsequently rethread the free end of the rope hanging therebeneath or even access the latter. The free end of the drum carries an upstanding post to keep the rope wound around the drum from coming off when slack and to permit the system to be tied off during the descent. A gate in an eye associated with the dogleg arm is either an integral part thereof or an attachment receives the unloaded portion of the rope and cooperates with the post to prevent the rope from uncoiling off the open drum end.
REFERENCES:
patent: 1351734 (1920-09-01), Barrington
patent: 3022856 (1962-02-01), Galeano
patent: 3217840 (1965-11-01), Holkesvick
patent: 3695397 (1972-10-01), Hobbs
patent: 3757893 (1973-09-01), Hobbs
patent: 3757901 (1973-09-01), Hobbs
patent: 4311217 (1982-01-01), Wood
Charles I. Brown
Machado Reinaldo P.
Spangler, Jr. Edwin L.
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