Method and apparatus for feeding a filler cord for slide fastene

Details Method and apparatus for feeding a filler cord for slide fastene Method and apparatus for feeding a filler cord for slide fastene

1975-08-27

1977-01-11

Schacher, Richard A.

Advancing material of indeterminate length

Processes

226182, 242153, B65H 1722

Patent

active

040022781

ABSTRACT:
A method and apparatus for feeding a filler cord for insertion into and through a longitudinal space defined by successive convolutions of a coiled slide fastener element, the filler cord being looped in the course of its travel from a bobbin to a mandrel holder so that a proper back tension is imparted to the cord and the cord is supplied at a rate corresponding to the amount of withdrawal of the fastener element that has been shaped into a helical coil.

REFERENCES:
patent: 2198695 (1940-04-01), Cummings
patent: 3161913 (1964-12-01), Pound
patent: 3346019 (1967-10-01), Brosseit

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