Importance

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Abstract

A clamping device comprises a holder in which an actuation arm is movable in a longitudinal directions. A fixed clamping jaw is carried by the holder and a movable clamping jaw is arranged within the holder opposite to the fixed clamping jaw and it is supported by at least two longitudinally spaced lever members which have a first pivotal connection to the holder, a second pivotal connection to the movable clamping jaw and a third pivotal connection to the actuator arm. An actuator is connected to the arm to move it backwardly and forwardly for opening and closing the jaws. The pivotal connecting points of the levers are chosen so that the pivotal points are disposed at substantially right angles to each other. The pivot pins are cylindrical hinge pins and the line between the pivotal connection of the lever to the jaw and to the fixed holder makes an angle of 45.degree. to the horizontal so that a larger distance between the points of support is possible.

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First Claim