Abstract: The air jet is provided with a first cylindrical baffle (A) and a second planar baffle (B) supported adjacent the exit orifice (30) of the air jet for successive engagement by the yarn (Y) leaving the air jet. The baffles (A) and (B) successively engage and deflect the yarn as well as the air leaving the exit orifice of the air jet so that two different types of treatment are imparted to the yarn by the successive baffles to permit higher operating speeds and to enhance the quality of the textured yarn. The homogeneous quality of the yarn is enhanced and the yarn exhibits a tighter yarn cross-section bundle because the exterior loop surface and the number of periodic balloons are both reduced.

Abstract: The baffle is in the form of a relatively thin flat plate supported in a fixed position substantially perpendicular to and spaced from the exit orifice of the air jet. The baffle is provided with an opening through which the yarn passes after leaving the exit orifice of the air jet. The opening produces a shock wave in the air leaving the exit orifice and passing through the opening and the yarn is drawn against an edge of the opening which functions as a twist trap. First adjustment means is provided for varying the distance between the baffle and the exit orifice and second adjustment means is provided for varying the perpendicular position of the baffle relative to the exit orifice. This baffle permits higher operating speed of the air jet and enhances the crimps, curls and loops imparted to the yarn by the air jet.

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.

Abstract: This resonant baffle comprises a relatively thin rectangular plate which extends transversely of and is spaced from the exit orifice of the air jet. The baffle is hingedly supported for movement toward and away from the exit orifice and a leaf spring normally urges the baffle toward the exit orifice of the air jet. An adjustable stop screw is provided for limiting inward movement of the baffle. This resonant baffle permits higher operating speed, provides better integration and more uniform loop formation along the length of the textured yarn.

Abstract: This turbulence generator is particularly for use with a yarn texturing air jet of the type having a venturi supported in the exit end of the jet with a yarn guiding needle positioned in the entrance end of the jet and with the space between the venturi and the inner end of the needle defining a turbulence chamber. The turbulence generator is in the form of a tubular extension projecting outwardly beyond the exit end of the needle to increase the size and change the usual shape of the turbulence chamber so that the agitation of the filaments of the yarn is increased in the turbulence chamber to enhance the crimps, curls and loops imparted to the yarn in the turbulence chamber.