D - Textiles – Paper – 05 – B
Patent
D - Textiles, Paper
05
B
112/75
D05B 3/12 (2006.01) D05B 35/06 (2006.01)
Patent
CA 1237025
ABSTRACT OF THE DISCLOSURE Successive fly strips are continuously sewn to a continuous slide fastener chain by a continuously operating sewing machine as the fly strips are supplied one after another to the sewing machine. During this supplying, a succeeding fly strip is superimposed over a preceding fly strip in a feed station while the preceding fly strip is supplied to the sewing machine and is sewn to the fastener chain. The succeeding fly strip is kept waiting by a stop in its superimposed position for supply to the sewing machine. When the trailing end of the preceding fly strip is advanced by the sewing machine from the trailing end of the succeeding fly strip as the sewing of the preceding fly strip progresses, the succeeding fly strip is supplied to the sewing station at a speed higher than the rate at which the sewing of the preceding fly strip progresses. The succeeding fly strip's trailing end catches up with the preceding fly strip's trailing end by the time the latter arrives at the sewing station, contiguous abutting end fashion.
489209
Gowling Lafleur Henderson Llp
Yoshida Kogyo K.k.
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