US PATENT SUBCLASS 72 / 171
.~.~.~ And additional work-deflecting or work-constraining element

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}
166  DF  .~ By use of deflectors arranged to bend work longitudinally of direction of work-movement {4}
170  DF  .~.~ Including three concurrently-acting delta-arranged deflector elements {3}
171.~.~.~ And additional work-deflecting or work-constraining element

DEFINITION

Classification: 72/171

And additional work-deflecting or working- constraining element:

(under subclass 170) Subject matter including use of a member additional to such three members (defined in and required by subclass 170) which additional member engages the work and guides, or deflects, or supports the work as it is acted upon by the three members.

(1) Note. Include herein subclass (171) are patents disclosing the fourth member as constraining the work by preventing its re-entry into contact with the three members.