bag of the type that would preferably be used in conjunction with this present invention i e a wicketed bag having a length substantially greater than its width bag 90 is a lip type bag having openings 93 in the lip 91 of the bag lip 91 is formed between the displaced edges 210 and 211 of folded film 21 these displaced edges in finished bag 90 are identified as 210 39 and 211 39 also shown in fig2 is a reference arrow showing this direction of film advance through the machine finished bag 90 also has a leading edge seal 92 and a trailing edge seal 96 once again with reference to fig1 sealing section 40 contains draw rolls 41 sealing roll 42 hot knife 43 and their associated drive mechanisms although the present invention can be used on all known bag making machines equipped with rotary transfer devices 45 it is preferably used on modern bag making machines in which draw rolls 41 are driven by a numerically controlled servo drive and in which the hot knife 43 is driven by a stepping motor drive system draw rolls 41 are used to advance a length of folded film 21 corresponding to the width of the desired finished bag once this length of folded film has been advanced hot knife 43 descends upon folded film 21.