Handling: hand and hoist-line implements – Grapple – Pivoted jaws
Patent
1993-03-11
1994-11-15
Kramer, Dean J.
Handling: hand and hoist-line implements
Grapple
Pivoted jaws
294117, 294902, B66C 132
Patent
active
053641477
ABSTRACT:
A device for handling railroad timber, including ties, bridge timbers, crossing planks, and bundles of ties and timbers, which comprises spaced-apart pivotally mounted gripping members or jaws for engaging longitudinally along the timber, actuating levers connected to the jaws, and a lifting harness for connecting the device to a lifting machine, such as a crane, wherein the lifting harness is connected to the actuating levers and when raised applies a force to the actuating levers and the gripping members to tightly engage the timber so it can be lifted, moved or repositioned.
REFERENCES:
patent: 2586843 (1952-02-01), McDonald
patent: 3655233 (1972-04-01), Twist
patent: 3674302 (1972-07-01), Mutch
patent: 3837699 (1974-09-01), Anderson et al.
patent: 3897969 (1975-08-01), Dike
Dickey Thomas E.
Gehr, Jr. Thomas Y.
ESCO Equipment Service Company
Kramer Dean J.
Masia Adam H.
Zickert Lloyd L.
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