US PATENT SUBCLASS 72 / 212
.~ With work-forcer offset from, and relatively movable between, spaced rollers


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}
212.~ With work-forcer offset from, and relatively movable between, spaced rollers {1}
213  DF  .~.~> With use of means to move work-forcer


DEFINITION

Classification: 72/212

With work forcer offset from, and relatively movable between, spaced rollers:

(under subclass 199) Subject matter including a group of two rollers separated from each other, and a third tool, between which group and tool the work is placed, and provided with means for moving the roller group and/or the third tool with respect to the other toward the work and into a position wherein the third tool lies in the space separating the rollers, thus deforming the work.

(1) Note. The axes of the rollers of the device disclosed in this and the indented subclass are either fixed with respect to each other or they are so connected that movement of one roller axis causes a corresponding movement of the other roller axis so that a plane through the roller axes at any given time is parallel to or coincident with the original plane.

(2) Note. The patents of this subclass (212) disclose the rollers moving toward the other tool and/or toward each other on both sides of the other tool.