US PATENT SUBCLASS 72 / 154
.~.~ Including backed-up, travelling wiper (e.g., follow bar)

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

127  DF  BY DEFLECTING SUCCESSIVELY-PRESENTED PORTIONS OF WORK DURING BODILY MOVEMENT THEREOF (E.G., FOR COILING, LEVELLING, CURVING OR TROUGHING MATERIAL IN MOVEMENT) {11}
149  DF  .~ By use of work-contacting wiper and moving, work-holding form {9}
154.~.~ Including backed-up, travelling wiper (e.g., follow bar)

DEFINITION

Classification: 72/154

Including back-up travelling wiper (e.g., follow bar):

(under subclass 149) Subject matter wherein the wiper comprises a first element engaging the surface of the work and moving therewith either along or parallel to the course of movement thereof, and a second element applying force at right angles to both the course and the axis-of-bend*, the second element thereby urging the first element into engagement with the workpiece.

(1) Note. The purpose of this structure is to prevent sliding contact between the wiper and the work. Since the travelling wiper moves with the work, the surface of the work is thus not marred by the wiper.