Importance

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Abstract

A power operated tool positioner for moving a tool parallel to a tool-positioning axis has a first tool-contacting member movable parallel to the tool-positioning axis for exerting a first pushing force against the tool, and a second tool-contacting member movable transverse to the tool-positioning axis for simultaneously exerting a second pushing force against the tool perpendicular to the first pushing force to resist any tendency of the first pushing force to tilt the tool obliquely relative to the tool-positioning axis. A third tool-contacting member is preferably provided for exerting a third pushing force to push the tool in the opposite direction from the first tool-contacting member, likewise while the second tool-contacting member is simultaneously pushing against the tool. The second tool-contacting member preferably exerts its pushing force prior to the commencement of the first or third pushing force. The three tool-contacting members are preferably interconnected so as to move in unison, the second tool-contacting member being movable relative to the tool parallel to the tool-positioning axis while simultaneously exerting its second pushing force against the tool.

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First Claim