Apparatus for sewing over-edge stitch in carpet

Details Apparatus for sewing over-edge stitch in carpet Apparatus for sewing over-edge stitch in carpet

1991-04-05

1993-09-07

Crowder, Clifford D.

Sewing

Special machines

Carpet sewing

112153, 112162, D05B 3510, D05B 120, D05B 5706

Patent

active

052419185

ABSTRACT:
An apparatus for sewing an over-edge stitch to form a butt-seam in sections of carpet or other thick workpieces is provided, wherein an existing over-edge stitching machine has four primary parts removed and replaced with four parts of different designs, the parts being the workpiece guide, the top looper, the top looper pivot arm and the bottom looper. The new workpiece guide forgoes using the attachments employed by the guide it replaces, and is instead soldered or otherwise secured to the existing needle plate, and the new workpiece guide has a finger extension which operates to keep thread loops formed by the stitching components in a loose configuration until substantially no further tension is produced on the thread loops by the stitching components.

REFERENCES:
patent: 3100469 (1963-08-01), Washburn
patent: 3468271 (1967-09-01), Johnson
patent: 3943864 (1976-03-01), Feighery
patent: 4062307 (1977-12-01), Michelberger
patent: 4356782 (1982-11-01), Ueyama et al.
patent: 4791874 (1988-12-01), Shiomi

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