Material or article handling – Elevator or hoist and loading or unloading means therefor – Grab
Patent
1981-08-24
1983-07-19
Spar, Robert J.
Material or article handling
Elevator or hoist and loading or unloading means therefor
Grab
414635, 414663, 414 11, 294 67AB, B66F 914
Patent
active
043941060
ABSTRACT:
A lift truck mechanism for handling glass sheets having a glass pack lifting frame. Gripping devices at the sides of the lifting frame engage sides of a glass pack. Feet at the bottom of the lifting frame support the glass pack on the frame. A framework of the mechanism attaches it to the lift mast of the lift truck, there being an operator control station platform extending rearwardly from the lifting frame above the lift mast. An intermediate frame is carried by the framework in selectively extendable relationship in front of the mast and there is a first pair of swinging frames swingably affixed to the intermediate frame for swinging movement on upright axes at the opposite sides of the intermediate frame. A second pair of swinging frames is provided, swingably affixed at proximal ends to the distal ends of the first pair of frames. Distal ends of the second pair of frames are pivoted to the lifting frame. A drag link interconnects the distal ends of the first pair of frames. First and second sets of hydraulic cylinders, respectively, effect side-shifting and slewing movements of the lifting frame relative to the lift truck.
REFERENCES:
patent: 3361280 (1968-01-01), Traver
patent: 3598263 (1971-08-01), Ehmke
patent: 3738518 (1973-06-01), Outsen, Jr.
patent: 3971585 (1976-07-01), LaBudde
Frees Kenneth A.
Quick Thomas E.
Missouri Research Laboratories Inc.
Siemens Terrance L.
Spar Robert J.
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