1977-04-26
1978-12-19
Werner, Frank E.
214620, 214654, B66F 918
Patent
active
041302125
ABSTRACT:
Multiple head drum clamping attachment for attachment to a lifting device such as a lift truck for lifting and transporting barrels or drums and particularly lightweight fiber drums having beads extending about each end thereof. The clamping attachment comprises a transverse bar having clamping heads pivotally mounted on each end for limited pivotal movement about parallel vertical axes to conform the clamping head to the contour of the drum. The transverse bar may be supported on the vertical mast of a lift truck on pairs of parallel spaced links attached to a universal support, supporting the transverse bar for limited movement in vertical and horizontal planes relative to the links to conform the clamping attachments to a selected drum and its top bead. The links are biased outwardly with respect to the mast and the clamping attachments each include a casing and clamping jaws carried in the casing. Engagement of the lower clamping jaw with the drum and upward lifting movement thereof brings the lower of said jaws under the bead of the drum and the upper of the jaws within the bead of the drum to effect upward lifting movement of the drum upon upward movement of the mast. Stops are provided to limit outward pivotal movement of the clamping attachments about vertical axes and to assure that the clamping attachments conform to drums of varying diameters and to beads of various forms and lift a selected drum without damaging its bead.
REFERENCES:
patent: 2347212 (1944-04-01), Naranick
patent: 2698107 (1954-12-01), Ericson
patent: 3223265 (1965-12-01), Hansen
patent: 3367705 (1968-02-01), Ames
patent: 3510019 (1970-05-01), Howard
Liftomatic Material Handling, Inc.
Werner Frank E.
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