Derrick elevator

Details Derrick elevator Derrick elevator

1982-12-06

1984-10-02

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Inclined cable supporting carrier traveling therealong

182142, 187 6, A62B 102

Patent

active

044742630

ABSTRACT:
A system for moving personnel between two elevations has features that allow control of ascent and descent by the passenger. The system has a cage carried by a load bearing cable that is moved to raise and lower the cage. The cable also has a plurality of electrical conductors within it that are insulated from each other. Passenger controls are connected to the electrical conductors of the cable. The conductors are connected at the other end to the powered lifting device, preferably through a slip ring assembly.

REFERENCES:
patent: 1849725 (1932-03-01), Quick
patent: 2670890 (1954-03-01), Hodge
patent: 2948348 (1960-08-01), Bott
patent: 3262518 (1966-07-01), Webb
patent: 3826335 (1974-07-01), Allen
patent: 4037684 (1977-07-01), Moyer
patent: 4056167 (1977-11-01), Bonafos
patent: 4111281 (1978-09-01), Jacobs
patent: 4226300 (1980-10-01), Rallis
patent: 4294331 (1981-10-01), Reynoir

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