Abstract: A device for the zigzag folding of flexible tapes is mounted on an entablature. The entablature includes a guide for distributing the tape. A pair of rollers are disposed within a transverse slot on the entablature. The rollers are each provided with an alternating succession of disks and pulleys. The disks are fixed to said rollers so as to rotate together. Each of the pulleys accepts a cable. The plurality of cables constitutes a belt for aiding in advancement of the tape. The rollers are coupled to a support carriage including a motor for rotating the rollers in opposite directions, the tape being guided between the oppositely rotating rollers and disks.

Abstract: A process for making a woven ribbon having stitched selvages on a ribbon loom by moving a single weft inserting member crosswise in two directions. The weft inserting member inserts a first auxiliary thread along each selvage and alternately drives a second auxiliary thread in the opposite direction outside the selvage.