Thread cutting device for cylinder bed sewing machine

Details Thread cutting device for cylinder bed sewing machine Thread cutting device for cylinder bed sewing machine

1987-05-11

1988-02-23

Hunter, H. Hampton

Sewing

Elements

Thread cutting, severing or breaking

112199, D05B 6502

Patent

active

047263059

ABSTRACT:
A thread cutting device for a cylinder bed sewing machine for sewing by means of a plurality of needles a piece of fabric supported on a cylindrical bed while transporting the fabric piece in a given direction, wherein a hook portion of a thread catch member which is adapted to plunge into and retreat from needle thread loops in orthogonal relation to an obliquely inclined plane of opening of the needle thread loops so that a plurality of needle and looper threads are accurately caught into the hook portion and then carried along thereby for cutting. In addition, an arrangement is disclosed which enables the mounting of the thread cutting device without interferring with the movement of a looper, even if the available space within the bed is very limited.

REFERENCES:
patent: 3386402 (1968-06-01), Ross
patent: 3391665 (1968-07-01), Kozuka
patent: 3403648 (1968-10-01), Jarrett
patent: 3405622 (1968-10-01), Ross
patent: 3424115 (1969-01-01), Schopf
patent: 3424117 (1969-01-01), Schopf
patent: 3489115 (1970-01-01), Marfario et al.
patent: 3605664 (1971-09-01), Gentofte
patent: 3871307 (1975-03-01), Scott et al.
patent: 4098209 (1978-07-01), Schopf

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