advantageous to first make the non woven seam and then to make the woven seam because the width of a woven seam can be controlled more accurately however the production of the woven seam presents considerable difficulties because the already produced seam obstructs the production of the woven seam when the seams are offset relative to one another the production of the woven seam is obstructed by the other fabric layers in order to explain the difficulties arising from the woven seam being the last one to be completed it will now be described with reference to fig1 how a woven seam is made in a single layer fabric at the fabric ends 1 2 to be joined the warp threads are first exposed along a length of about 10 centimeters by removal of filling threads the thus prepared ends of the fabric are clamped on a tenter table 3 so that the filler threads 7 8 remaining in the fabric are disposed exactly parallel to each other at a predetermined distance of for example 8 cm in general the distance is an integral multiple of the weave pattern and is equal to or less than the length of the fringe like ends of the warp threads in this case 10 cm next nearly all of the warp threads are removed from a strip previously cut off the fabric and having a width precisely corresponding to the distance between the fabric ends in the present case 8 cm the warp.