Method and device for joining an upper thread to a lower thread

Details Method and device for joining an upper thread to a lower thread Method and device for joining an upper thread to a lower thread

1979-03-13

1980-11-11

Watkins, Donald

Textiles: spinning, twisting, and twining

Apparatus and processes

Piecing up

57 22, 242 356R, D01H 1500

Patent

active

042325099

ABSTRACT:
Method and device for joining together an upper and a lower thread, which includes moving at least one first thread feeder from a thread pick-up position to a thread transfer position, inserting the upper and the lower threads into a longitudinal slot formed in a chamber, holding the threads in the slot until compressed air is admitted to the chamber, and at given positions during the movement of the first thread feeder; closing the chamber with a lid, automatically severing the ends of the upper and lower thread and blowing compressed air into the chamber.

REFERENCES:
patent: 3311312 (1967-03-01), Hauri
patent: 3581486 (1971-06-01), Dibble
patent: 3822538 (1974-07-01), Cardell
patent: 3918651 (1975-11-01), Uehida
patent: 4002012 (1977-01-01), Norris

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