Thread cutting device for lockstitch sewing machines

Details Thread cutting device for lockstitch sewing machines Thread cutting device for lockstitch sewing machines

1978-09-05

1980-04-29

Hunter, H. Hampton

Sewing

Elements

Thread cutting, severing or breaking

112253, D05B 6500, D05B 5300

Patent

active

042000505

ABSTRACT:
Thread cutting device for lockstitch sewing machines equipped with vertical axis looptaker and provided with a thread catching member displacing around an axis parallel to the looptaker axis along a path passing over the looptaker, wherein the thread catching member is formed by a plate ending with a pointed portion having a notching extending upwardly for the needle thread catching and a small foil bent at a right angle relative to the pointed portion, the small foil being so shaped as to be provided with a bobbin thread catching zone and a bobbin and needle thread cutting zone, the cutting zone being closer to the sewn fabric than the needle thread catching zone and than the notching for the needle thread catching.

REFERENCES:
patent: 3211117 (1965-10-01), Speichermann et al.
patent: 3470835 (1969-10-01), Saganowich
patent: 3503355 (1970-03-01), Hagemeyer et al.
patent: 3602170 (1971-08-01), Sakashita
patent: 3658021 (1972-04-01), Hedegaard et al.

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