out this method comprises a dancing roller arranged to exert the weight load between a stitch base and means for continuously withdrawing the stitched web application_number US 99204497 A description the device in accordance with the embodiment shown in fig1 comprises a needle board 2 held in a needle bar 1 which needle board is driven by a not represented thrust crank drive whose push rods 3 act on the needle bar 1 the needles 4 of the needle board 2 stitch into the dash dotted web 5 in the vicinity of a web guide which consists of a stitch base 6 opposite the needle board 2 and a stripper 7 between the stitch base 6 and the needle board 2 and is disposed between continuously driven feed rollers 8 and discharge roller 9 for adjusting the stitching depth and for adaptation to the respective web thickness both the stitch base 6 and the stripper 7 are vertically adjustable by men of actuators the stitch base 6 and the stripper 7 have a continuous curvature so that portions with different inclinations in direction of web movement are formed for the web guide since the web 5 lies flat against the stitch base 6 there are differently inclined stitch channels for the.