Hydraulic elevator installation

Details Hydraulic elevator installation Hydraulic elevator installation

1974-10-25

1976-07-13

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 904

Patent

active

039688607

ABSTRACT:
An hydraulic jack for an elevator installation comprises a pair of cylinders and a common plunger. One cylinder is fixedly mounted in a vertical position in a hoistway; while one end of the plunger is mounted within the fixed cylinder for vertical reciprocating movement therein. The other cylinder, which carries an elevator cab up and down in the hoistway, is slidably mounted about the other end of the plunger for vertical reciprocating movement thereon.

REFERENCES:
patent: 344038 (1886-06-01), Fitts
patent: 454872 (1891-06-01), Krell
patent: 1799298 (1931-04-01), Jakob
patent: 2935301 (1960-05-01), Olivier
patent: 3252680 (1966-05-01), Lee

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