Metal working – Method of mechanical manufacture – Of a slide fastener
Patent
1996-02-21
1997-05-27
Echols, P. W.
Metal working
Method of mechanical manufacture
Of a slide fastener
29770, 83921, A41H 3706, B21D 5350
Patent
active
056320760
ABSTRACT:
An apparatus for gapping a zipper having a pair of slide fasteners stringers such that each fastener stringer has a continuous row of fastener elements secured to an edge thereof. The apparatus includes a support which has a substantially flat surface for supporting the stringers in a generally parallel alignment. An indexing wheel having a plurality of serrations located along a periphery thereof cooperates with the support to engage the fastener elements of each of the pair of fastener stringers for incrementally advancing the pair of fastener stringers a predetermined distance along the support. The hinged block is connected to the support. The hinged block is a pair of grooves formed along the surface thereof so as to be positioned in a path of the advancing fastener stringers for respectively receiving the fastener stringers in the area to be gapped. The hinged block is pivotable relative to the supports so that the fastener elements positioned in the pair of grooves of the hinged block are removed seriatim from each of the pair of fastener stringers and thereby form a gap in the slide fastener stringers in the region where the fastener elements are removed.
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Ervin James K.
Singleton Elijah
Echols P. W.
Talon, Inc.
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