Apparatus for forming gaps in a slide fastener chain

Details Apparatus for forming gaps in a slide fastener chain Apparatus for forming gaps in a slide fastener chain

1983-12-21

1986-03-04

Meister, James M.

Cutting

Processes

With preparatory or simultaneous ancillary treatment of work

83465, 83620, 83921, 29 332, 29408, B26D 111, B21D 5350, A41H 3706

Patent

active

045733830

ABSTRACT:
A space forming apparatus for producing an element-free space section of predetermined length at predetermined intervals in continuous slide fastener chain. Said apparatus comprises a transfer table for intermittently transferring the continuous slide fastener chain, a die disposed in the center of the transfer table, a punch disposed opposite to the die and having a longitudinal length substantially the same as that of the spaced sections to be formed, said punch being provided with a center projecting rib extending along a center line of a punch body, a pair of parallel inner cutting blades disposed on the both sides of the rib and a pair of parallel outer cutting blades disposed on the outer side each of the inner cutting blades, and a chain fixing device located on both sides of the die and opposite sites to them for clamping and securing the right and left stringers when the severed fragments of the coupling elements are removed from the sewing threads.

REFERENCES:
patent: 4131223 (1978-12-01), Aureli

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