Material or article handling – Elevator or hoist and loading or unloading means therefor – Grab
Patent
1984-07-23
1985-12-03
Sheridan, Robert G.
Material or article handling
Elevator or hoist and loading or unloading means therefor
Grab
294 88, 2941191, B66F 918
Patent
active
045563594
ABSTRACT:
A clamp attachment for use on a lift truck having a plurality of slides movable in vertically spaced parallel guides with first and second load clamps connected to the slides and actuated by first and second piston and cylinder assemblies. A ball and socket support supports each of the assemblies from the body for automatically aligning the assemblies for reducing shock load and binding of the assemblies. The supports are limited from rotating about their longitudinal axis. The piston end of the assemblies is removable for easily maintenance while the cylinder remains on the attachment. A front openable hydraulic compartment is positioned in front of the assemblies for simplifying maintenance and for reducing the thickness of the attachment. A bearing slipper telescopically engages each end of each slide and is telescopically movable in the guides for increasing the bearing support of the slides in the guides and to make possible the use of a wide connection between the slide and the clamp arm for welding or bolting without any increase in the attachment thickness for the bolted connection.
REFERENCES:
patent: 4185944 (1980-01-01), Seaberg
patent: 4279564 (1981-07-01), Weinert
Anderson, Clayton & Co.
Sheridan Robert G.
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