Suction air nozzle for forming a thread reserve

Details Suction air nozzle for forming a thread reserve Suction air nozzle for forming a thread reserve

1979-01-22

1980-09-23

Petrakes, John

Textiles: spinning, twisting, and twining

Apparatus and processes

Piecing up

57305, 242 356E, D01H 1502

Patent

active

042235189

ABSTRACT:
An elongated suction air nozzle provided for forming a thread reserve in the form of a loop in thread running past the mouth thereof. A constriction is provided in the nozzle and extends for the whole length of the expected loop size. The constriction divides the cross-sectional area of the nozzle into two partial areas resulting in air flow in the central region of the nozzle being of a greater velocity than in the two partial remote areas.

REFERENCES:
patent: 3077312 (1963-02-01), Furst
patent: 3131879 (1964-05-01), Glastra et al.
patent: 3136494 (1964-06-01), Furst
patent: 3595493 (1971-07-01), Tsukuma et al.
patent: 3810352 (1974-05-01), Miyazaki et al.
patent: 4145867 (1979-03-01), Kamp

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