figure given here leads us to divide without discontinuities. If reducing the paper size figures of the surface crossing the gap (or fold line), then in our main pattern there are lines that can not be extended, and the rest on the other line. Sometimes, it is particularly desirable to completely avoid division with tears. For example, it would be desirable that the wall of the brick house did not have a seam that crosses the wall from top to bottom. Manual welding drum boilers and oil pipes of large diameter prohibit contact of two longitudinal and two transverse seams. Each transverse or circumferential weld may abut only one longitudinal direction of the seam. Longitudinal seam another direction must necessarily be biased towards. This breaks in the longitudinal seam will extend only until the next cross-stitch.