Material or article handling – Elevator or hoist and loading or unloading means therefor – Comprising means enabling additional movement of carrier or...
Patent
1983-06-15
1986-06-17
Spar, Robert J.
Material or article handling
Elevator or hoist and loading or unloading means therefor
Comprising means enabling additional movement of carrier or...
414282, B66F 914
Patent
active
045953325
ABSTRACT:
A stacker-retriever lift carriage is disposed to be raised, lowered and positioned, in selected positions with respect to a pair of spaced support masts, by a flexible wire cable connected between a lift drive and the lift carriage. The lift carriage carries a telescoping shuttle which includes a shuttle base, middle table and top table disposed one atop the other and for movement with respect to each either in a bi-directional manner. A pair of sheaves are rotatably mounted on the middle table at an acute angle to the surface of the middle table. A pair of cable connect the sheaves to the shuttle base and top table so that drive of the middle table, by a table drive mechanism, in a particular direction effects a movement of the top table in a corresponding direction but at twice the relative distance of the middle table. The middle table is fabricated from a pair of identically sized and formed table plates; has a pair of flaps bent therefrom to an acute angle with respect to a top surface of the table plate. The table plates are affixed together in back to back relationship and with their respective flaps aligned to form the mounting for the sheaves.
REFERENCES:
patent: 3549025 (1970-12-01), Messner
patent: 3606039 (1971-09-01), Weston et al.
patent: 3632001 (1972-01-01), Richens et al.
patent: 3848754 (1974-11-01), Bryntse
patent: 3892324 (1975-07-01), Faletti, Jr.
patent: 3913766 (1975-10-01), Wentz
Litton Systems Inc.
Millman S.
Pollack Morris I.
Spar Robert J.
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