US PATENT SUBCLASS 72 / 101
.~.~ Using rotating tool-couple relatively adjustable about pivot normal to tool axis

Current as of: June, 1999
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72 /   HD   METAL DEFORMING

67  DF  BY USE OF TOOL ACTING DURING RELATIVE ROTATION BETWEEN TOOL AND WORK ABOUT INTERNAL CENTER (E.G., GYRATING OR ROTATING TOOL) {10}
80  DF  .~ During rotation of work {12}
101.~.~ Using rotating tool-couple relatively adjustable about pivot normal to tool axis

DEFINITION

Classification: 72/101

Using rotating tool couple relatively adjustable about pivot normal to tool axis:

(under subclass 80) Subject matter including a tool-couple* comprising two tools, each of which turns on its axis, and a tool-carrier* for supporting one of the tools, which tool-carrier is mounted to pivot about an axis extending in a direction substantially perpendicular to the axis of the tool supported thereby to position one tool relative to the other.

(1) Note. The function of the structure described is usually (a) to permit work to be placed within the "bite" of the tool-couple prior to deformation, or (b) to vary the effect of the tool couple on the work during deformation thereof.