Method and apparatus for gapping a slide fastener chain

Details Method and apparatus for gapping a slide fastener chain Method and apparatus for gapping a slide fastener chain

B - Operations, Transporting

21

D

26/171

B21D 53/50 (2006.01) A44B 19/58 (2006.01)

Patent

CA 1091435

ABSTRACT OF THE DISCLOSURE A method of providing a slide fastener chain with gaps free of fastener elements at predetermined intervals is disclosed, the method comprising imparting a tendency to the fastener chain to spread the confronting longitudi- nal edges of its opposed stringer tapes prior to removal of the fastener elements, and maintaining constant tension over a length of the fastener chain, whereby the gaps can be formed accurately at predetermined locations along the length of the fastener chain. A preferred form and construc- tion of apparatus tailored to carry this method into practice is also disclosed.

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