US3494119A - Large diameter double twist spindles employed in the textile industry - Google Patents

Large diameter double twist spindles employed in the textile industry Download PDF

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Publication number
US3494119A
US3494119A US767881*A US3494119DA US3494119A US 3494119 A US3494119 A US 3494119A US 3494119D A US3494119D A US 3494119DA US 3494119 A US3494119 A US 3494119A
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United States
Prior art keywords
yarn
large diameter
spindle
textile industry
guide element
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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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US767881*A
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English (en)
Inventor
Michele Ratti
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Individual
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Individual
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H7/00—Spinning or twisting arrangements
    • D01H7/02—Spinning or twisting arrangements for imparting permanent twist
    • D01H7/86—Multiple-twist arrangements, e.g. two-for-one twisting devices ; Threading of yarn; Devices in hollow spindles for imparting false twist
    • D01H7/868—Yarn guiding means, e.g. guiding tubes

Definitions

  • a main object of the present invention is to eliminate this drawback.
  • the rotating base of the spindle has two annular grooves of dilferent diameters, each provided with a yarn guide element; the yarn, axially passing through the spindle from the upper to the lower end thereof, being made to pass in a substantially radial direction through the yarn guide element of the small diameter groove and successively in a direction substantially parallel to the spindle axis through the yarn guide element of the larger diameter groove; the broken yarn, as a consequence of the air resistance encountered in the section between the two grooves, being made to partially wind up in the small diameter groove so that the unwinding process comes to an end.
  • FIG. 1 is an axially sectioned view of an improved spindle according to the present invention
  • FIG. 2 is a cross sectional view of the spindle taken along the plane 2-2 in FIG. 1.
  • the rotating base of the spindle is provided with two annular grooves: a small diameter groove 5 placed below a larger diameter groove 1.
  • Each of said grooves is provided with a yarn guide element.
  • Groove 5 has a yarn guide element 6 so placed therein as to direct the yarn in a substantially radial direction while groove 1 has its yarn guide element 4 so placed as to direct the yarn in a direction which is substantially parallel to the spindle axis.
  • the yarn section 3" comprised between the yarn guide element 6 and the yarn guide element 4 (FIG. 2) by encountering a considerable air resistance as a consequence of the high rotational spindle speed, forms a kind of a loop as indicated with dash line in FIG. 2 and finally is wound up in the small diameter groove 5 whereby the unwinding process comes to an end.
  • annular grooves may be placed in any part of the rotating base or they may consist of separate annular elements applied to the rotating base. They may also be of any suitable shape without therefore departing from the spirit of the present invention.
  • An improvement to large diameter double twist spindles adapted to prevent the yarn, when it breaks, from keeping unwinding from the bobbin mounted on the spindle as a consequence of the centrifugal force acting thereupon, said improvement comprising a rotating hollow spindle, said spindle having a base, two annular grooves of different diameters on said base, a yarn guide element on each of said diameters, the yarn after passing through said hollow spindle from the upper to the lower end thereof being led in a substantially radial direction through said yarn guide element of the one of said grooves having the small diameter and successively in a direction substantially parallel to the axis of said spindle through said yarn guide element of the other of said grooves having the larger diameter, said broken yarn in consequence of the air resistance encountered in the section between said two grooves being induced to partially wind up in said small diameter groove so that said unwinding action comes to a stop.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
US767881*A 1967-08-28 1968-08-26 Large diameter double twist spindles employed in the textile industry Expired - Lifetime US3494119A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1987067 1967-08-28

Publications (1)

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US3494119A true US3494119A (en) 1970-02-10

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ID=11161936

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Application Number Title Priority Date Filing Date
US767881*A Expired - Lifetime US3494119A (en) 1967-08-28 1968-08-26 Large diameter double twist spindles employed in the textile industry

Country Status (5)

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US (1) US3494119A (it)
CH (1) CH464749A (it)
DE (1) DE1760893A1 (it)
FR (1) FR1577064A (it)
NL (1) NL6810930A (it)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4334405A (en) * 1979-09-29 1982-06-15 Palitex Project-Company Gmbh Stator section for a spindle, more especially a two-for-one spinning or twisting spindle
US4357792A (en) * 1979-09-24 1982-11-09 Officine Savio S.P.A. Deflector for spindles in double twisting machines
US4569189A (en) * 1983-10-08 1986-02-11 Palitex Project-Company Gmbh Two-for-one yarn twisting spindle assembly having no balloon limitor

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19726450C1 (de) * 1997-06-21 1998-07-02 Hamel Ag Mehrfachdraht-Zwirnspindel mit rotierendem Ballonbegrenzer

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2625786A (en) * 1950-08-12 1953-01-20 Deering Milliken Res Trust Twisting device for textile strands
US2715811A (en) * 1952-07-17 1955-08-23 American Viscose Corp Flier for multiple twist twisters
US2718363A (en) * 1952-01-17 1955-09-20 American Viscose Corp Tension control device
GB982865A (en) * 1962-06-27 1965-02-10 Onderzoekings Inst Res Improvements in or relating to twisting apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2625786A (en) * 1950-08-12 1953-01-20 Deering Milliken Res Trust Twisting device for textile strands
US2718363A (en) * 1952-01-17 1955-09-20 American Viscose Corp Tension control device
US2715811A (en) * 1952-07-17 1955-08-23 American Viscose Corp Flier for multiple twist twisters
GB982865A (en) * 1962-06-27 1965-02-10 Onderzoekings Inst Res Improvements in or relating to twisting apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4357792A (en) * 1979-09-24 1982-11-09 Officine Savio S.P.A. Deflector for spindles in double twisting machines
US4334405A (en) * 1979-09-29 1982-06-15 Palitex Project-Company Gmbh Stator section for a spindle, more especially a two-for-one spinning or twisting spindle
US4569189A (en) * 1983-10-08 1986-02-11 Palitex Project-Company Gmbh Two-for-one yarn twisting spindle assembly having no balloon limitor

Also Published As

Publication number Publication date
NL6810930A (it) 1969-03-04
CH464749A (it) 1968-10-31
FR1577064A (it) 1969-08-01
DE1760893A1 (de) 1972-01-05

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