US3475895A - Twist tube for false-twist device - Google Patents

Twist tube for false-twist device Download PDF

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Publication number
US3475895A
US3475895A US791085A US3475895DA US3475895A US 3475895 A US3475895 A US 3475895A US 791085 A US791085 A US 791085A US 3475895D A US3475895D A US 3475895DA US 3475895 A US3475895 A US 3475895A
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US
United States
Prior art keywords
twist
tube
pin
bore
false
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US791085A
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English (en)
Inventor
Josef Raschle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Heberlein Patent Corp
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Heberlein Patent Corp
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Publication date
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Publication of US3475895A publication Critical patent/US3475895A/en
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Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
    • D02G1/04—Devices for imparting false twist
    • D02G1/06—Spindles

Definitions

  • This invention relates to apparatus useful for texturing yarns, and more particularly, to twist tubes or spindles utilized in false-twist devices.
  • yarn may be textured by a false-twist process wherein the yarn is advanced longitudinally through a twist tube or spindle and looped around a pin extending transversely of the tube axis or bore.
  • the tube is rotated to impart a false-twist in the yarn advancing towards the tube; and the yarn thus twisted is treated as desired.
  • twist tubes with a pin positioned transversely of the longitudinal bore or axis of the tube, and to advance the yarn longitudinally through the bore and once around the pin. It is also known to fabricate a tube which, in order to facilitate threading of the yarn, has at one end, a forked head of a diameter somewhat larger than that of the main part of the tube; and a pin of hardened material, such as sapphire extends across the gap between the tines in the forked head. It has been found that at extremely high revolution speeds, the tines of the forked head of such tubes bend away from each other due to the high centrifugal forces. This condition generates an eccentricity which leads to destruction of the pin.
  • my contribution comprises a twist tube having a longitudinal bore, a pin positioned to extend transversely relatively to the longitudinal axis of the bore, and a transverse bore crossing the pin and the axis of which is displaced relatively to the axis of the pin by a distance equal to a fraction of the thickness of the pin.
  • the diameter of the transverse bore be equal to that of the pin and that the axis of this bore be perpendicular to the axis of the pin.
  • FIG. 1 is an enlarged central vertical sectional view through the longitudinal axis of an end of a twist tube or spindle;
  • FIG. 2 is a cross-sectional view taken along the lines 22 of FIG. 1;
  • FIG. 3 is a view similar to FIG. 1 but taken at to the section of FIG. 1;
  • FIG. 4 is a top plan view of the tube as shown in FIG. 3.
  • FIGS. 1 to 4 there is shown a terminal portion 1 of a twist tube according to the present invention wherein a longitudinal bore 2 communicates with a counterbore 3 at the end of the tube.
  • a pin 4 is mounted in the counterbore 3 transversely to the longitudinal axis thereof, and it will be noted that the central part of the pin is necked down to a lesser diameter than that of its ends.
  • a transverse bore 6 passes through the tube 1 and is positioned so that its longitudinal axis 7 is displaced downwardly, as viewed, relatively to that of the pin 4, and these two axis are preferably perpendicular to each other.
  • the twist tube 1 may have an outer diameter of the order of 2.5 mm., the bore 2 a diameter of the order of 0.5 mm., and the counterbore 3 a diameter of the order of 1.5 mm.
  • the pin 4 may be approximately 1 mm. in diameter at its ends and approximately 0.7 mm. at its center.
  • the transverse bore 6 is of substantially the same diameter as that of the ends of the pin; and the axis of the pin 4 and bore 6 may be displaced approximately 0.2 mm.
  • the yarn 8 may be easily threaded by winding same once around the pin 4, as shown in FIGS. 1 and 3, in spite of the very small size of the twist tube.
  • a flexible needle or the like may be of assistance in threading.
  • a twist tube of the class described comprising a body having a longitudinal bore, a pin positioned to extend transversely relatively to the longitudinal axis of said bore, and a transverse bore crossing said pin, the longitudinal axis of said transverse bore being displaced relatively to the longitudinal axis of said pin by a distance less than the diameter of said pin.
  • a twist tube according to claim 1 wherein the longitudinal axis of said transverse bore and pin cross at right angles to each other.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
US791085A 1968-03-01 1969-01-14 Twist tube for false-twist device Expired - Lifetime US3475895A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH314968A CH459453A (de) 1968-03-01 1968-03-01 Drehröhrchen für Falschdrallvorrichtungen

Publications (1)

Publication Number Publication Date
US3475895A true US3475895A (en) 1969-11-04

Family

ID=4249667

Family Applications (1)

Application Number Title Priority Date Filing Date
US791085A Expired - Lifetime US3475895A (en) 1968-03-01 1969-01-14 Twist tube for false-twist device

Country Status (5)

Country Link
US (1) US3475895A (de)
CH (1) CH459453A (de)
DE (1) DE6907668U (de)
FR (1) FR1602246A (de)
GB (1) GB1209732A (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3574273A (en) * 1969-05-08 1971-04-13 Leesona Corp False twist spindle and method of threading the same
US3811259A (en) * 1971-06-21 1974-05-21 P Petersen Guide means for two for one twisting device
US3934398A (en) * 1973-08-13 1976-01-27 Murata Kikai Kabushiki Kaisha False twisting spindle
US4040242A (en) * 1975-12-11 1977-08-09 Heberlein Maschinenfabrik Ag Twist tube for false-twisting devices
US4115986A (en) * 1974-04-05 1978-09-26 Heberlein & Co. Ag Twist tube for false-twist devices
US4721650A (en) * 1985-01-11 1988-01-26 Monsanto Company Partially oriented nylon yarn and process

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2634492C3 (de) * 1976-07-31 1979-01-18 Akzo Gmbh, 5600 Wuppertal Verfahren zum schnellen Einfädeln eines Fadens in eine Falschzwirnspindel
CN101962837A (zh) * 2010-10-15 2011-02-02 朱爱萍 纱线假捻装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2777276A (en) * 1953-05-11 1957-01-15 Deering Milliken Res Corp Method and apparatus for false twisting yarn
US2893198A (en) * 1955-12-30 1959-07-07 American Enka Corp Thread twisting apparatus
GB1049776A (en) * 1961-11-24 1966-11-30 Klinger Mfg Co Ltd Improvements in or relating to false twisting apparatus
GB1071534A (en) * 1964-08-14 1967-06-07 Rhodiaceta False twist spindle
US3363409A (en) * 1964-02-17 1968-01-16 Kugelfischer G Schaefer & Co Rotary tube for crimping filamentary synthetic fibers by imparting thereto a false twist

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2777276A (en) * 1953-05-11 1957-01-15 Deering Milliken Res Corp Method and apparatus for false twisting yarn
US2893198A (en) * 1955-12-30 1959-07-07 American Enka Corp Thread twisting apparatus
GB1049776A (en) * 1961-11-24 1966-11-30 Klinger Mfg Co Ltd Improvements in or relating to false twisting apparatus
US3363409A (en) * 1964-02-17 1968-01-16 Kugelfischer G Schaefer & Co Rotary tube for crimping filamentary synthetic fibers by imparting thereto a false twist
GB1071534A (en) * 1964-08-14 1967-06-07 Rhodiaceta False twist spindle
US3349554A (en) * 1964-08-14 1967-10-31 Rhodiaceta False twist spindle

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3574273A (en) * 1969-05-08 1971-04-13 Leesona Corp False twist spindle and method of threading the same
US3811259A (en) * 1971-06-21 1974-05-21 P Petersen Guide means for two for one twisting device
US3934398A (en) * 1973-08-13 1976-01-27 Murata Kikai Kabushiki Kaisha False twisting spindle
US4115986A (en) * 1974-04-05 1978-09-26 Heberlein & Co. Ag Twist tube for false-twist devices
US4040242A (en) * 1975-12-11 1977-08-09 Heberlein Maschinenfabrik Ag Twist tube for false-twisting devices
US4721650A (en) * 1985-01-11 1988-01-26 Monsanto Company Partially oriented nylon yarn and process

Also Published As

Publication number Publication date
DE6907668U (de) 1969-07-17
GB1209732A (en) 1970-10-21
FR1602246A (de) 1970-10-26
CH459453A (de) 1968-07-15

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