Material or article handling – Elevator or hoist and loading or unloading means therefor – Comprising means enabling additional movement of carrier or...
Patent
1983-04-06
1985-06-18
Blix, Trygve M.
Material or article handling
Elevator or hoist and loading or unloading means therefor
Comprising means enabling additional movement of carrier or...
414467, 414539, 414540, 414631, 414668, 414277, 414279, 212124, 212125, 212128, 212213, B60P 104, B65G 100, B66C 1710
Patent
active
045238871
ABSTRACT:
In a stacker crane having a trolley comprising a turntable rotatable about a vertical axis, a mast projecting down from the turntable for rotation and horizontal motion with it, and a load supporting device vertically positionable along the mast, the mast comprises two mast elements spaced to opposite sides of said axis, and said device comprises an inverted U-shaped carriage member having its legs engaged along the inner sides of the mast elements and a shuttle member comprising load supporting tongues projecting forward from a frame. Rollers on the shuttle member frame engage fore-and-aft extending tracks on the legs of the carriage member to confine the shuttle member to horizontal motion relative to the carriage member between an extended position wherein said frame is spaced forward from said axis and a retracted position wherein said axis extends through the shuttle member.
REFERENCES:
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patent: 3643825 (1972-02-01), Zane, Jr.
patent: 3750804 (1973-08-01), Lemelson
patent: 3880299 (1975-04-01), Zollinger et al.
patent: 4248353 (1981-02-01), Budzich et al.
patent: 4286911 (1981-09-01), Benjamin
patent: 4316528 (1982-02-01), Deschantsreiter
patent: 4375936 (1983-03-01), Deschantsreiter
Blix Trygve M.
Harnischfeger Corporation
Johnson R. B.
Nilles James E.
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