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US 5,964,015 AGranted
Textile jet nozzle with smooth yarn channel
AssigneeInternational Machinery Sales, Inc.
InventorNicolas C Sear
Life of this patent
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AssigneeInternational Machinery Sales, Inc.
InventorNicolas C Sear
Estimating the term…
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. A camming sleeve 60, surrounding the bolt 70, has an inclined camming surface 62 which engages an opposed camming surface 54 on the upper surface of the top plate 40 to shift the top plate laterally until the shoulders abut.
A jet for interlacing multifilament textile yarn comprising a base and a top plate forming a yarn channel and a threading slot, the yarn channel having parallel opposed side walls and having a lower convex surface formed in the base and an upper surface formed by the top plate, the base including a side face forming a portion of one yarn channel side wall below the threading slot, the top plate including a lip having a side face forming a portion of the one yarn channel side wall above the threading slot, the base having a first shoulder spaced from the yarn channel and the top plate having a second shoulder spaced from the yarn channel, the first and second shoulders abutting so that the side face of the lip above the threading slot is in the same plane as the side face of the base below the threading slot to prevent damage to the yarn by exposed edges adjacent the threading slot.
A jet nozzle for treating textile yarns comprising a base and a top plate attachable to the base to form a yarn channel, extending between opposite ends of the nozzle, between the base and the top plate, the base including an air inlet communicating with the yarn channel, the base having a first top surface and a second top surface on opposite sides of the yarn channel, the second top surface being offset relative to the first top surface, a first shoulder on the base extending from the first top surface and spaced from the yarn channel, and a second shoulder on the top plate spaced from the yarn channel, the first and second shoulders being abutable when the top plate is mounted on the base, a lip on the top plate spaced from the second top surface to form a threading slot between the lip and the base, the lip being spaced from the second shoulder by a distance equal to the spacing between the first shoulder and a base side wall below the threading slot, so that the lip and the base side wall form a yarn channel surface without protruding edges when the top plate is mounted on the base, and a cam surface configured so that a force on the cam surface moves the second shoulder into abutment with the first shoulder.
Dependencies are inferred from the claim text.