Method of and apparatus for attaching slide fastener coupling ch

Sewing – Elements – Frames

Patent

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Details

112130, 112235, 112323, D05B 9710, D05B 2906, D05B 2704

Patent

active

044112114

ABSTRACT:
A method of and a sewing machine for affixing a continuous chain of coupling members for a slide fastener to a flexible support, e.g. a garment or a tape to be applied to a garment, utilizes a fabric fed by a mechanism below the worktable and a presser foot with a feeder above the worktable which advances the coupling chain in a composite movement including up-and-down and back-and-forth components. According to the invention, at least one of the drives is adjustable so that the increment of the displacement of the respective member (fabric or coupling chain) can be varied to ensure that the two members are stitched together free from undulations or corrugations after the stitching operation or any subsequent treatment to which the product may be subjected.

REFERENCES:
patent: 3793969 (1974-02-01), Adams
patent: 3858538 (1975-01-01), Van Amburg
patent: 3859939 (1975-01-01), Howell
patent: 4321880 (1982-03-01), Boser

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