GB1345613A - Method and apparatus for the production of sliding clasp fasteners - Google Patents

Abstract

1345613 Shaping sliding clasp fasteners W UHRIG 12 May 1971 [13 May 1970] 14442/71 Heading B5A [Also in Divisions D1 and E2] Stringer tapes 1 are woven in pairs on a ribbon loom with a configuration shown in Fig. 1, bent, moulded to provide interengaging teeth 9, brought together to engage the teeth and finally bent and heat set to the configuration shown in Fig. 2. In Figs. 3 and 4, the woven tapes 1, 1a pass around deflecting studs 31 which bend the tapes to the shape of Fig. 6 (not shown) around studs 32 which further bend the tapes to the shape of Fig. 7 (not shown), through embossing rollers 23 (see Fig. 16, not shown) which emboss the teeth to the shape of Fig. 8 (not shown), through precurving means 24 which precurve the tapes to the shape of Fig. 9 (not shown) through a duct 25 (see Fig. 18, not shown) which heat sets the tapes to the Fig. 9, shape, the tapes are interengaged by passing around studs 2, the tapes then pass through a moulding duct 28 which progressively reorients them from the shape of Figs. 29 to 32 (not shown), the tape then passes through a further duct 29 which irons the tape to the final shape of Fig. 37 (not shown).