US PATENT SUBCLASS 72 / 242.2
.~.~.~ Load bearing, equal size pair of back-up rolls

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}
242.2.~.~.~ Load bearing, equal size pair of back-up rolls {1}
242.4  DF  .~.~.~.~> And second stage, equal size pair of back-up rolls

DEFINITION

Classification: 72/242.2

Load bearing, equal size pair of back-up rolls:

(under subclass 241.2) Subject matter wherein the back-up comprises first and second rollers of approximately the same diameter, positioned such that their axes are parallel to each other and to the axis of the deforming roller and such that they are close to, but not touching each other, so that the supported deforming roller fits between them and they receive equal shares of the reactive force of the deforming load.