US PATENT SUBCLASS 72 / 291
.~.~ Maintaining a "straight-line-draw"


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

274  DF  BY PULLING WORKPIECE THROUGH CLOSED PERIPHERY DIE (E.G., ROD-, TUBE-, OR WIRE-DRAWING) {8}
287  DF  .~ Utilizing specified work moving means {4}
291.~.~ Maintaining a "straight-line-draw"


DEFINITION

Classification: 72/291

Maintaining a "straight-line draw":

(under subclass 287) Subject matter including structure which prevents the work seizing and tensioning means, or the work itself, from canting, rotating, tilting, or otherwise moving out of the desired path of movement.

(1) Note. The above described structure may be positioned on either side, or both sides, of a die; and, it may restrain the path of movement of the work, the gripper, the carrier, the elements of the motive means, or any combination of the above.

SEE OR SEARCH THIS CLASS, SUBCLASS:

428, for work-handling means including a work guide in combination with conventional apparatus (e.g., a metal-deforming press).

SEE OR SEARCH CLASS

269, Work Holders,

35, and 256 for a workholder having interrelated parts which are restricted to "straight-line" movements.