Thread trimming mechanism for sewing machines

Details Thread trimming mechanism for sewing machines Thread trimming mechanism for sewing machines

1982-11-08

1983-08-30

Hunter, H. Hampton

Sewing

Elements

Thread cutting, severing or breaking

112292, 112297, 112300, D05B 6500

Patent

active

044010451

ABSTRACT:
A solenoid operated sewing machine thread trimmer with a compression spring influenced armature, a spring offsetting permanent magnet, and solenoid coil means with energizing circuits alternately offsetting the permanent magnet freeing the compression spring to shift the armature in one direction or augmenting the permanent magnet to return the armature.

REFERENCES:
patent: 2707927 (1955-05-01), Artzt et al.
patent: 3184622 (1965-05-01), Levine
patent: 3211117 (1965-10-01), Speichermann et al.
patent: 3386402 (1968-06-01), Ross
patent: 3400677 (1968-09-01), Bowers et al.
patent: 3867892 (1975-02-01), Ciecior et al.

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