Device for automatically threading a sewing machine

Details Device for automatically threading a sewing machine Device for automatically threading a sewing machine

1979-08-23

1980-12-30

Schroeder, Werner H.

Sewing

Elements

Needles

D05B 4700

Patent

active

042416787

ABSTRACT:
A device for threading the stitch forming instrumentalities of a sewing machine from a thread supply up to a sewing needle. A lever is pivotally mounted in the sewing machine frame and is located at the sewing head which when pulled outwardly, thread, which has been placed across the lever, is drawn into a loop and is urged, by the lever, into a tension device, into a thread take-up lever, and under a check spring assembly.

REFERENCES:
patent: 2530768 (1950-11-01), Hickey
patent: 2544577 (1951-03-01), Weber
patent: 2616381 (1952-11-01), Filip
patent: 2655886 (1953-10-01), Ingwer
patent: 3540392 (1970-11-01), Kaplan
patent: 3970019 (1976-07-01), Coulombe et al.
patent: 4010702 (1977-03-01), Miyamoto
patent: 4070977 (1978-01-01), Yamamoto et al.

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