Overlock sewing machine having upper and lower looper thread tak

Details Overlock sewing machine having upper and lower looper thread tak Overlock sewing machine having upper and lower looper thread tak

1992-02-28

1993-08-24

Crowder, Clifford D.

Sewing

Stitch forming

Overseaming

112168, 112246, 112199, D05B 120, D05B 114, D05B 4900

Patent

active

052379426

ABSTRACT:
An overlock sewing machine which is arranged such that a lower thread take-up lever is disposed independently of an upper looper thread take-up lever and that a lower looper thread take-up lever drive mechanism is fabricated independently of an upper thread take-up lever drive mechanism and adapted to connect thereto an adjust means for adjusting the amount of thread fed from the lower looper thread take-up lever.

REFERENCES:
patent: 4690080 (1987-09-01), Mikuni et al.
patent: 4967677 (1990-11-01), Seiriki et al.
patent: 4970967 (1990-11-01), Kitai et al.
Union Special Catalog, "Stitch Formation Type 401", p. 7.
Union Special Catalog, "Overedge Stitch Formation Type 504", copyright 1978, p. 24.
Union Special Catalog, "Stitch Formation Type 605", Copyright 1971, pp. 26-27.

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