US PATENT SUBCLASS 72 / 241.4
.~.~.~ With means to relatively vary back-up force along roller axis

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

199  DF  BY USE OF ROLLER OR ROLLER-LIKE TOOL-ELEMENT {17}
237  DF  .~ With carrier for roller-couple or tool-couple {9}
241.2  DF  .~.~ Including back-up for roller {4}
241.4.~.~.~ With means to relatively vary back-up force along roller axis {2}
241.6  DF  .~.~.~.~> Hydraulic or pneumatic force appliers spaced along roller axis
241.8  DF  .~.~.~.~> Means to apply bending moment to roller or back-up roll

DEFINITION

Classification: 72/241.4

With means to relatively vary back-up force along roller axis:

(under subclass 241.2) Subject matter wherein the roller support between the ends of the roller includes provision to vary the force transmitted to the deforming roller.