Elevator system for transporting wheelchair patients

Details Elevator system for transporting wheelchair patients Elevator system for transporting wheelchair patients

1976-07-08

1977-09-06

Blunk, Evon C.

Elevator, industrial lift truck, or stationary lift for vehicle

Stationary lift for roadway vehicle or required component...

Having specific drive means for support

187 95, B66B 908

Patent

active

040462269

ABSTRACT:
An elevator platform rides on parallel tracks which may be adapted for vertical or inclined conveyance. Each track is slotted along its length, through which slot the platform extends and is connected to a trolley driven by a continuous chain. Each track is tubular and generally rectangular, and each encloses another tubular, rectangular member which provides a space for the chain return and electrical conduits, and which provides support for the trolley. Each trolley has an upper pair of rollers bearing against the inside of the hollow track straddling the slot, and lower rollers bearing against the top surface of the inner tubular member. Interrupt and safety precautions are provided based on chain breakage, excessive speed, overload, or contact with foreign objects in the path of the elevator platform.

REFERENCES:
patent: 1768650 (1930-07-01), Wood
patent: 1838204 (1931-12-01), Wood
patent: 1993309 (1935-03-01), Rubin
patent: 2563260 (1951-08-01), Miller
patent: 2674347 (1954-04-01), Thompson
patent: 2950948 (1960-08-01), Hardigan et al.
patent: 3121476 (1964-02-01), Mazzarelli
patent: 3312307 (1967-04-01), Camp
patent: 3592294 (1971-07-01), Allen
patent: 3662859 (1972-05-01), Flinchbaugh
patent: 3833092 (1974-09-01), Flinchbaugh

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