Process for the manufacture of slide fasteners

Details Process for the manufacture of slide fasteners Process for the manufacture of slide fasteners

1991-06-05

1993-01-26

Echols, P. W.

Metal working

Method of mechanical manufacture

Of a slide fastener

29766, 29 332, B21D 5350, A41H 3706

Patent

active

051813050

ABSTRACT:
A process for the manufacture of slide fasteners from an elongate stringer chain is disclosed in which the stringer chain is maintained in tensionless suspension at predetermined locations along the path of its movement through various stages of production. A plurality of processing units are controlled so as to operate in synchronized relation to one of such units which has a slowest cycle of operation.

REFERENCES:
patent: 2885774 (1959-05-01), Waldes
patent: 3130476 (1964-04-01), Scheuermann
patent: 3530563 (1970-09-01), Maeda
patent: 4932113 (1990-06-01), Frohlich et al.

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