Skipped stitch detection system

Details Skipped stitch detection system Skipped stitch detection system

1978-12-14

1979-10-16

Hunter, H. Hampton

Sewing

Elements

Thread sensing

200 6118, B65H 6302

Patent

active

041709519

ABSTRACT:
A skipped stitch detection system for a sewing machine is provided with a strain gage mounted on the slack thread regulator. The strain gage is connected in a Wheatstone bridge configuration. An amplified output from the Wheatstone bridge and timing signals from the sewing machine are provided to a microprocessor which analyzes the thread tension profile to detect the occurrence of a skipped stitch.

REFERENCES:
patent: 3425375 (1969-02-01), Jacobs et al.
patent: 3587497 (1971-06-01), Beazley

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