Self-tightening clamp

Details Self-tightening clamp Self-tightening clamp

1987-06-11

1988-04-26

Marbert, James B.

Handling: hand and hoist-line implements

Grapple

Pivoted jaws

294118, B66C 148

Patent

active

047400242

ABSTRACT:
A self-tightening clamp is described in which two clamping members are pivotally attached to each other intermediate their ends and include arms terminating in clamping jaws. An elongated pull bar having first and second ends is pivotally attached to one of the arms of the clamp. When the first end of the pull bar is pulled in an outward direction the second end of the pull bar is biased against one of the handles of the clamp to force the clamping jaws towards each other. The clamp may also include a cam on one of the arms for locking the jaws in a closed position. The clamp can be secured to a workpiece and pulled in any desired direction.

REFERENCES:
patent: 126818 (1872-05-01), Lindsay
patent: 3870359 (1975-03-01), Hultquist

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