braking plate to the required length at an angle of upper shaft of 240 u00b0 i e after the completion of an entire machine rotation by 360 u00b0 the thread braking plate 65 briefly closes this provides additional important process security because the loose upper thread 7 cannot be entrained by the thread catcher 19 position d out of the thread braking plate 65 at 255 u00b0 the thread catchers 19 a 19 c return into the initial position and the upper thread 7 is retained by a defined holding force in order to allow the formation of a tight knot and additionally the loose upper thread loop cannot be pulled through the hole in the material fig2 and 26 in fig2 it is discernible how the stitch is generated this at an angle of the upper shaft of 25 u00b0 at an angle of the upper shaft of 50 u00b0 the hook 1 pulls the upper thread 7 of the following second stitch away from the needle 11 fig2 and at 150 u00b0 the lower thread 9 is engaged by the upper thread 7 and the thread lever pulls the knot in the direction towards the underside of the material fig2 after another rotation of the upper shaft by 20 u00b0 the thread lever has engaged the upper thread loop with the engaged lower thread loop pulled to the underside of the material and the desired tight knot is realized at 200 u00b0 the lead in stitching function is successfully concluded after two stitches and the next stitches can occur in turn fig3 a and 33 b.