Needle thread guiding apparatus

Details Needle thread guiding apparatus Needle thread guiding apparatus

1987-02-26

1987-11-17

Hunter, H. Hampton

Sewing

Elements

Thread guiding or handling

112261, B65H 5700

Patent

active

047065893

ABSTRACT:
A needle thread guide provided at a needle bar frame and located adjacent to the needle entry protects the needle thread from being stuck by the needle when the workplace is fed during button holing. The guide guides the needle thread outwardly when the needle descends, thus the needle thread positioned lower than the needle eye is protected from being stuck by the needle. The guide is associated with the oscillating motion of the needle, but its direction of oscillation is opposite to the direction of needle oscillation, and its amplitude is almost twice the amplitude of the needle.

REFERENCES:
patent: 2541549 (1951-02-01), Sampson
patent: 3643613 (1972-02-01), Schwehm
patent: 4562783 (1986-01-01), McClellan

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