Abstract: A textile interlacing slide jet (2), (102) includes a jet body (10), a jet carriage (40, 140) on which a ceramic jet nozzle insert (30, 130) is mounted, and a spring housing (52) that includes a stack of compression spring washers (70,170), such as Belleville washers. The spring housing (52) is rotatable, relative to an upper arm (20) of the jet body (10), to a tilted position to permit insertion and removal of the jet carriage (40, 140) and the jet nozzle insert (30, 130) without the use of special tools. The compression spring washers (70, 170) are located in the spring housing (52) directly above a ceramic plate (66, 166) located on the bottom of the spring housing. These springs (70, 170) urge the ceramic plate or bottom layer into engagement of the top surface of the jet nozzle insert (30, 130) so that the ceramic plate (66, 166) can close a yarn channel when the jet carriage (40, 140) and the jet nozzle insert (30, 130) have been moved to a closed position by rotation of an actuating lever (80, 180).

Abstract: An apparatus and method for improving multifilament textile yarn interlacing includes two spaced apart interlacing jet nozzles 2a and 2b positioned so that the yarn channels 4a and 4b of the two nozzles are aligned in a tandem relationship. High pressure air is injected into an upstream nozzle 2a with a velocity component tending to entrain or advance the yarn through the upstream nozzle 2a. High pressure air is injected into the downstream nozzle 2b with a velocity component tending to retard passage of the yarn through the downstream nozzle 2b.

Abstract: Either multiple open slot air jets 2 or multiple closed jets 102 interlacing yarn can be positioned side by side in abutting relationship so that the jets can be positioned in close proximity to decrease the centerline spacing for adjacent yarns. An open slot air interlacing jet 2 includes a yarn channel 20 and a threading slot 42 forming an opening on one side of the yarn channel so that yarn or yarn filaments can be inserted into the yarn channel. An air orifice 40 intersects the yarn channel and high pressure air injected through the air inlet or orifice 40 interlaces or intertwines the yarn or yarn filaments as they are drawn through the yarn channel 20. Thread guides 58, 60 located below the yarn channel axis and the tapered yarn channel sections permit the yarn to be drawn through the yarn channel 20 at an angle relative to the threading slot 42 so that the yarn cannot easily escape from the yarn channel 20.

Abstract: A textile yarn interlacing or intermingling jet nozzle 2 has a yarn channel 4, a threading slot 6 and an air inlet 8. The yarn channel 4 is formed between a top plate 40 mounted to a base 20 by bolts 70, 80 which secure both members to a nozzle support 90 to form the nozzle assembly. The threading slot 6 extends from one side and opens into the yarn channel so that a multifilament yarn can be inserted from the side. This threading slot 6 is formed by the lower surface 48 of a lip 46 on the top plate 40 and an upper surface 24 on the base. To insure that the sidewall 10 of the yarn channel through which the threading slot extends does not contain any sharp edges that could damage yarn, shoulders 34 and 42 are formed on the base 20 and top plate 40. When these shoulders abut, the upper and lower surfaces forming sidewall 10 are in the same plane and there are no offset or exposed edges to damage the yarn. The shoulders 34 and 42 are brought into abutment as a bolt 70 mounts the top plate 40 to the base 20.

Abstract: An air interlacing jet 2 includes a yarn channel 20 and a threading slot 42 forming an opening on one side of the yarn channel so that yarn or yarn filaments can be inserted into the yarn channel. An air orifice 40 intersects the yarn channel and high pressure air injected through the air inlet or orifice 40 interlaces or intertwines the yarn or yarn filaments as they are drawn through the yarn channel 20. The body 4 of the interlacing jet or jet insert 2 is a single piece member and the yarn channel 20 includes outwardly tapered sections 28 and 32 at each end. The tapered sections are formed by an EDM process. Thread guides 58, 60 located below the yarn channel axis and the tapered yarn channel sections permit the yarn to be drawn through the yarn channel 20 at an angle relative to the threading slot 42 so that the yarn cannot easily escape from the yarn channel 20.