B - Operations – Transporting – 23 – B
Patent
B - Operations, Transporting
23
B
29/14, 82/20
B23B 21/00 (2006.01) B23B 29/18 (2006.01)
Patent
CA 1059304
SELF-RETRACTING TOOL ABSTRACT OF THE DISCLOSURE There is disclosed a self-retracting tool holder assembly for mounting a tool on a machine in a pre- determined location with respect to a workpiece, the assembly incorporating a tool holder mounted for pivotal movement about an axis so arranged that when the tool is fed by the machine into engagement with the workpiece the forces created by such engagement will cause the tool holder to pivot about said axis to advance the tool into a seated machining position in which the machining portion of the tool is displaced into the workpiece both in the feed direction and in a direction at right angles thereto, and spring means to automatically retract the tool to an inactive position out of engagement with the workpiece when the feed of the tool stops, whereby when the tool is returned by the machine the tool will not cause a drag line to be formed on the just-machined surface of the workpiece.
275502
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