Patent ID: 7739935

Claim:
A device for lateral separation of paper webs, comprising: a paper introduction region with at least one continuously or discontinuously driven web supply roller; a paper merger region, with merger region tubes; a buffer region, where a paper web is prepared for discontinuous forward motion, the buffer region comprising a first tube group and a second tube group, each tube group comprising a first tube and a second tube movable, relative to at least a third tube, in a direction perpendicular to the paper web, wherein the first tube group and the second tube group are arranged laterally reversed to each other, between the paper merger region and a discontinuously driven forward motion means, and each tube group processes a paper web; a paper web lead-off region with discontinuously driven forward motion means; a cutting device containing a cutting means for cutting the paper web; and a paper web pull-off region with discontinuous web forward motion means, wherein each tube group is arranged between the paper merger region and the discontinuously driven web forward motion means to form a double turned paper web loop of variable length, wherein the distance between the tubes of each tube group corresponds to the length of the paper web loop and is controlled by a controller connected to each continuously or discontinuously driven web supply roller and the discontinuous forward motion means.