Monitoring looper thread feed monitoring device in a sewing mach

Details Monitoring looper thread feed monitoring device in a sewing mach Monitoring looper thread feed monitoring device in a sewing mach

1984-02-17

1986-07-29

Nerbun, Peter

Sewing

Elements

Thread sensing

112273, D05B 6936

Patent

active

046025820

ABSTRACT:
A thread monitor device for a textile machine to monitor thread feed through a region of a machine, the device including a source of light, means to convey the light to a thread feed region, and to direct light into said region, means to receive light directed into said region from said source and produce a monitor signal representative of said received light, means responsive to said monitor signal and to changes therein to indicate the occurrence of a change in said signal representative of a change in thread feed in the region.

REFERENCES:
patent: 3599586 (1971-08-01), Newman
patent: 4188902 (1980-02-01), Kahan
patent: 4333411 (1982-06-01), Lerner
patent: 4429651 (1984-02-01), Tajima
patent: 4432297 (1984-02-01), Kemmel

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