(under subclass 224) Subject matter wherein the rollers are arranged in groups of two, each of the two rollers of a group being alike, with the rollers of one group being different from the rollers of the other group(s); and the axes of all the rollers lie in a common plane through which the work moves.
(1) Note. The Figure accompanying this note illustrates a typical arrangement of rollers used in the disclosures of this subclass, and also shows a cross section of the shape produced thereby. [figure]
