B - Operations – Transporting – 31 – F
Patent
B - Operations, Transporting
31
F
93/87
B31F 5/00 (2006.01) A44B 19/34 (2006.01) A44B 19/42 (2006.01) B26D 3/08 (2006.01) B31F 1/00 (2006.01) B65H 45/22 (2006.01)
Patent
CA 1204615
ABSTRACT OF THE DISCLOSURE A method of and apparatus for manufacturing a pair of paper stringer tapes for slide fasteners from a pair of blank paper strips of a continuous length. The blank paper strips are fed longitudinally through a guide roller assembly. A pair of parallel spaced engraving wheels is spring-biased against one guide roller of the guide roller assembly. As the paper strips pass between the one guide roller and the respective engraving wheels, a pair of continuous folding lines of a constant depth is engraved on the blank paper strips along the respective inner longitudinal margin thereof. The inner longitudinal margin of each paper strip is folded on the folding line to provide a doubled edge on which a row of thermoplastic coupling elements is to be mounted.
403833
Sekine Yukio
Yokoe Kazuo
Gowling Lafleur Henderson Llp
Yoshida Kogyo K.k.
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