Slide fastener and method and apparatus for making the same

Details Slide fastener and method and apparatus for making the same Slide fastener and method and apparatus for making the same

B - Operations, Transporting

29

D

26/172

B29D 5/00 (2006.01)

Patent

CA 1047749

ABSTRACT OF THE DISCLOSURE Coils of filamentary material are secured to adjacent edges of a pair of carrier tapes. Each coil of filamentary material is formed from a filament having a specially shaped cross section which is arranged in a mirror image relationship with respect to its adjacent filamentary coil. During formation of the filamentary coils, they are simultaneously wound on a mandrel having differently shaped surfaces which aid in the final shaping of each coil.

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