Hooking arrangement for two-needle lockstitch sewing machines

Sewing – Stitch forming – Multiple needle

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Details

112184, D05B 112, D05B 5708

Patent

active

049933353

ABSTRACT:
A two-needle lockstitch sewing machine apparatus providing a hooking arrangement such that each thread loop is positioned in the same direction in relation to the needle position. The hooking arrangement is effective to stitch each left and right stitch line with a needle thread having almost the same degree of twist. Thus, uniform stitch lines are obtained and the "edge effect" which is often experienced when the needle thread passes through the needle eye during stitching is eliminated.

REFERENCES:
patent: 398323 (1889-02-01), Griffin
patent: 401776 (1889-04-01), Dewees
patent: 1269118 (1918-06-01), Ringe
patent: 1591319 (1926-07-01), Johnson
patent: 1638338 (1927-08-01), Jacobs et al.
patent: 2862468 (1958-12-01), Johnson
patent: 3433191 (1969-03-01), Goeber et al.
Bayer, "Problems With Multi-Directional Sewing", Bobbin, vol. 23, p. 97 (Jul., 1982).

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