US3349554A - False twist spindle - Google Patents

False twist spindle Download PDF

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Publication number
US3349554A
US3349554A US476561A US47656165A US3349554A US 3349554 A US3349554 A US 3349554A US 476561 A US476561 A US 476561A US 47656165 A US47656165 A US 47656165A US 3349554 A US3349554 A US 3349554A
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US
United States
Prior art keywords
spindle
filament
bar
false twist
bars
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
Application number
US476561A
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English (en)
Inventor
Boutonnet Alexandre
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.)
Rhodiaceta SA
Original Assignee
Rhodiaceta SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Rhodiaceta SA filed Critical Rhodiaceta SA
Application granted granted Critical
Publication of US3349554A publication Critical patent/US3349554A/en
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Expired - Lifetime legal-status Critical Current

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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

  • the present invention relates to a false twist spindle comprising a device for effectively arresting the twist of the filament.
  • a hollow cylindrical spindle for imparting a false twist to a filament travelling through it and comprising at least one transverse bar about which the filament passes with a reversal of its twist, the said bar having in its zone of contact with the filament non-circular sections whose periphery has at least one region having a very pronounced curvature, which is situated in the path of the filament.
  • sections whose periphery has at least one region having a very pronounced curvature are meant sections such that the filament undergoes a sudden change of direction in the course of its travel around the bar.
  • bars which are elliptical in crosssection, the ellipse having a high curvature at the end of the major axis.
  • each bar may have a cross-section which is semi-elliptical or a truncated ellipse comprising only a single region of high curvature, the said bars being so disposed that the filament passes over the said region of high curvature of each of them.
  • FIGURE 1 is a front elevation of a false twist spindle according to the invention
  • FIGURE 2 is a top plan view of the spindle of FIG- URE 1
  • FIGURES 3, 4, 5, 6 and 7 illustrate in perspective various forms of the bars serving to arrest the twist.
  • the spindle 1 there illustrated consists of a cylinder formed with a cylindrical channel 2.
  • the spindle is driven in known manner ice at 3.
  • the twisting of the filament is arrested by the device comprising two bars 4 arranged crosswise, which are perpendicular to the axis of the channel 2, the path of the filament being shown at 5.
  • Such bars which are shown in perspective in FIGURE 3, have a constant elliptical cross-section.
  • the major axis of the ellipse bounding the said cross-section is parallel to the axis of the channel 2 of the spindle.
  • FIGURE 4 illustrates a variant of FIGURE 3 in which substantially sharp angles have ben machined at the ends of the major axis of the elliptical cross-section.
  • FIGURE 5 illustrates another constructional form of bar 4.
  • the cross-section of such a bar is elliptical and comprises a central groove 6 serving for positioning the filament.
  • Such a bar may be employed in false twist spindles comprising only one bar for arresting the twisting.
  • FIGURE 6 which has a diaboloshaped profile, but again is elliptical in cross-section, the path of the filament being indicated at 5.
  • the false twist spindle according to the invention makes it possible to arrest effectively the twisting of the filament and to operate satisfactorily with spindles rotating at speeds of 200,000 r.p.m. and even more.
  • a false twist spindle for imparting a false twist to a filament, such spindle comprising a hollow tube defining a central passage therethrough for the filament; at least one transverse bar extending across said passage; a peripheral surface to said bar about which a filament passes effective to reverse its twist; the cross-sectional shape of said bar at least at the center thereof being non-circular and such that the peripheral surface has at least one region having a pronounced curvature.
  • a false twist spindle for imparting a false twist to a filament, such spindle comprising a hollow tube defining a central passage therethrough for the filament; a pair of transverse bars spanning said passage and being arranged in cross-over relationship to one another; a cross-sectional shape to each said bar, said shape being of semielli-ptical form defining a region of pronounced curvature on each said bar the region of pronounced curvature of one bar being remote from that of the other bar with respect to the tube axis.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
US476561A 1964-08-14 1965-08-02 False twist spindle Expired - Lifetime US3349554A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR985247A FR1411894A (fr) 1964-08-14 1964-08-14 Broche fausse torsion

Publications (1)

Publication Number Publication Date
US3349554A true US3349554A (en) 1967-10-31

Family

ID=8836704

Family Applications (1)

Application Number Title Priority Date Filing Date
US476561A Expired - Lifetime US3349554A (en) 1964-08-14 1965-08-02 False twist spindle

Country Status (7)

Country Link
US (1) US3349554A (xx)
BE (1) BE668289A (xx)
CH (1) CH433581A (xx)
ES (1) ES316487A1 (xx)
FR (1) FR1411894A (xx)
GB (1) GB1071534A (xx)
NL (1) NL6510288A (xx)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3475895A (en) * 1968-03-01 1969-11-04 Heberlein Patent Corp Twist tube for false-twist device
US3591953A (en) * 1968-10-31 1971-07-13 Ernst Fr Weinz Spindle for false twisting yarn
US3778991A (en) * 1971-02-10 1973-12-18 Heberlein & Co Ag Twist tube for a false-twist device
US3983686A (en) * 1974-11-29 1976-10-05 Heberlein & Company Twist tube for false-twist devices
US3999363A (en) * 1974-02-13 1976-12-28 Heberlein & Co. Ag Twist-tube for false-twist texturing machines

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
FR1317476A (fr) * 1962-02-21 1963-02-08 Klinger Mfg Co Ltd Perfectionnements aux appareils à fausse torsion
US3180074A (en) * 1956-04-04 1965-04-27 Joseph F Smith High speed spindle apparatus
US3232036A (en) * 1962-09-26 1966-02-01 Scragg & Sons Textile false twist devices
US3283490A (en) * 1965-02-02 1966-11-08 Leesona Corp False twist spindle

Patent 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
US3180074A (en) * 1956-04-04 1965-04-27 Joseph F Smith High speed spindle apparatus
FR1317476A (fr) * 1962-02-21 1963-02-08 Klinger Mfg Co Ltd Perfectionnements aux appareils à fausse torsion
US3232036A (en) * 1962-09-26 1966-02-01 Scragg & Sons Textile false twist devices
US3283490A (en) * 1965-02-02 1966-11-08 Leesona Corp False twist spindle

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3475895A (en) * 1968-03-01 1969-11-04 Heberlein Patent Corp Twist tube for false-twist device
US3591953A (en) * 1968-10-31 1971-07-13 Ernst Fr Weinz Spindle for false twisting yarn
US3778991A (en) * 1971-02-10 1973-12-18 Heberlein & Co Ag Twist tube for a false-twist device
US3999363A (en) * 1974-02-13 1976-12-28 Heberlein & Co. Ag Twist-tube for false-twist texturing machines
US3983686A (en) * 1974-11-29 1976-10-05 Heberlein & Company Twist tube for false-twist devices

Also Published As

Publication number Publication date
FR1411894A (fr) 1965-09-24
GB1071534A (en) 1967-06-07
CH433581A (fr) 1967-04-15
ES316487A1 (es) 1965-12-01
BE668289A (xx)
NL6510288A (xx) 1966-02-15

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