AUTOMATIC SEWING MACHINE THREAD TIGHTENING CONTROL DEVICE Russian patent published in 1994 - IPC

Abstract RU 2016937 C1

FIELD: sewing industry. SUBSTANCE: device has convex tightening washers spring-biased one towards the other. Washers are mounted on hollow shaft. Sleeve fixedly connected with one washer is mounted between hollow shaft and spring-biased washers. Washers are made from steel and magnetized by opposite charges. EFFECT: enhanced reliability in operation by increased wearing surfaces. 3 dwg

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RU 2 016 937 C1

Authors

Batazov V.N.

Bessonov A.N.

Vershinin V.V.

Krasnov Ju.A.

Shevtsova G.I.

Dates

1994-07-30—Published

1991-07-01—Filed