Yarn texturing air jet

Details Yarn texturing air jet Yarn texturing air jet

1977-03-09

1978-06-20

Mackey, Robert R.

Textiles: manufacturing

Thread finishing

Surface modification of running length

D02G 116

Patent

active

040953203

ABSTRACT:
This yarn texturing air jet is of the type which includes a venturi supported in the exit end of the jet housing with a yarn guiding needle positioned in the entrance end. The space between the venturi and the inner end of the needle defines a turbulence chamber and pressurized air passes along the needle and enters the turbulence chamber through a restricted airflow passageway extending completely around the inner end of the needle to impart crimps, curls and loops to the filaments of the yarn as the yarn passes through the turbulence chamber. In accordance with the present invention, a cut-away portion in the form of a beveled face is provided on the inner end of the needle for increasing the volume of air in an arcuate segment of the restricted airflow passageway so that a greater volume of air enters the turbulence chamber through the arcuate segment of the restricted airflow passageway to provide enhanced crimps, curls and loops and to permit texturing of the yarn at an increased rate of speed.

REFERENCES:
patent: 3010270 (1961-11-01), Richmond et al.
patent: 3188713 (1965-06-01), Dyer et al.
patent: 3259954 (1966-07-01), Dyer et al.
patent: 3328863 (1967-07-01), Cobb et al.
patent: 3380242 (1968-04-01), Richmond et al.
patent: 3545057 (1970-12-01), Lubach
patent: 3577614 (1971-05-01), Price
patent: 3863309 (1975-02-01), Price
patent: 3881231 (1975-05-01), Price et al.
patent: 3881232 (1975-05-01), Price et al.
patent: 3969799 (1976-07-01), Polney
patent: 3979805 (1976-09-01), Hoffsommer et al.

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