Method and apparatus for removing an irregularity in a thread

Details Method and apparatus for removing an irregularity in a thread Method and apparatus for removing an irregularity in a thread

1980-09-26

1982-11-02

Petrakes, John

Textiles: spinning, twisting, and twining

Apparatus and processes

Piecing up

D01H 1502

Patent

active

043566928

ABSTRACT:
The method and apparatus for removing irregularities in a thread being produced on a machine as the thread is traveling to a takeup device. A thread reserve having a suction applied thereto causing a loop to be formed therein which contains said irregularity. An additional pair of loops are formed in said thread, one above and one below the thread reserve. The loop formed in the end of the thread reserve is severed from the thread and the two remaining loops are inserted into a thread joining device. A thread suction extractor associated with the thread joining device pulls the end portions of the pair of loops taut permitting the joining operation to take place and, after joining of the thread, removing the separated ends.
The thread reserve is provided with mechanism for maintaining the loop of thread extending therein separated and for severing and removing the portion of the loop containing the irregularity from the thread.

REFERENCES:
patent: 4083171 (1978-04-01), Konig et al.
patent: 4223517 (1980-09-01), Husges et al.
patent: 4232508 (1980-11-01), Husges et al.

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