pins 63 are not included once a defect is detected seaming station 60 moves downwardly and base 60 39 and brush assembly 75 are separated from carriage 86 such separation orients web insertion means 80 for pivotal movement through brushes 77 and 78 with the defect located immediately adjacent defect correcting area 75 a loop of web w is forced between brushes 77 and 78 to reside atop a sewing table 70 as described for production of a joining seam automatic sewing machine 88 may then move therealong to trim the defect from web w and to produce a new joining seam thereat once the defect has been removed and the seaming operation is completed the control means 210 reverses the direction of web feed to its original direction which automatically withdraws the new seam from within the web holding means and the web follows its normal path of travel as could be expected depending upon the size defect detected in the web the length of same could exceed the length of pusher finger 84 such that when pusher finger 84 positions the web loop between web holding brushes 77 and 78 a portion of the defect still remains outside of the trimming and sewing area as is shown in fig7 a pair of rolls 81 39.