US3482384A - Friction twisting apparatus - Google Patents

Friction twisting apparatus Download PDF

Info

Publication number
US3482384A
US3482384A US690294A US3482384DA US3482384A US 3482384 A US3482384 A US 3482384A US 690294 A US690294 A US 690294A US 3482384D A US3482384D A US 3482384DA US 3482384 A US3482384 A US 3482384A
Authority
US
United States
Prior art keywords
yarns
runs
yarn
twist
belt
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
US690294A
Other languages
English (en)
Inventor
Emil J Berger Jr
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.)
Warner and Swasey Co
Turbo Machine Co
Original Assignee
Turbo Machine Co
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 Turbo Machine Co filed Critical Turbo Machine Co
Application granted granted Critical
Publication of US3482384A publication Critical patent/US3482384A/en
Assigned to WARNER & SWASEY COMPANY, THE reassignment WARNER & SWASEY COMPANY, THE ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: WARNER & SWASEY COMPANY,THE A DEL CORP.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • D02G1/08—Rollers or other friction causing elements
    • D02G1/085—Rollers or other friction causing elements between crossed belts

Definitions

  • a particularly novel means comprising oppositely movable belt runs is utilized for applying the false twists in a continuous manner, during longitudinal movement of the yarns.
  • the twists are then removed from the yarns by passing the yarns between a downstream set of nip rolls, the yarns becoming unt-wisted following their passage through the nip rolls due to the substantially increased length of the yarns downstream of the downstream nip rolls for receiving the twist from the twist zone.
  • Such a separate operation has generally been conducted at a high rate of speed, in order to facilitate economy of operation, in that, after texturizing the yarns, other operations were necessary, such as winding the yarns on bobbins, placing the bobbins in a creel, unwinding the bobbins onto a beam, such as one of the tricot type, in parallel relation, all prior to feeding the yarns to a knitting machine at a relatively slow speed.
  • the present invention seeks to provide a substantial improvement to the prior art, in providing an apparatus which is adapted to continuously apply false twist to individual yarns, during longitudinal movement of the yarns through a twist zone, while setting the filaments of the yarns in the twist zone, to provide texturized and highly bulked yarns directly to a knitting, weaving or tufting machine, at machine feed speeds, or onto a bobbin or spool or the like, or to any other such yarn processing machines including yarn dyeing equipment and the like.
  • FIGURE 1 is a top plan view of the continuous yarn twist apparatus of this invention, mounted on the frame of a knitting machine or the like, the knitting machine being fragmentally illustrated, wherein the paths of yarn travel are clearly illustrated.
  • FIGURE 2 is a longitudinally sectional view, schematically illustrated, of the machine of this invention taken generally along the line IIII of FIGURE 1, and wherein the upper and lower yarn runs are clearly illustrated, for providing texturized yarn to a knitting machine or the like, wherein adjacent yarns have been alternately twisted.
  • FIGURE 3 is a transverse sectional view of the apparatus of this invention, taken generally along the line HIIII of FIGURE 1, and wherein the pulley systems which provide the means for twisting the yarns are best illustrated.
  • FIGURE 4 is an enlarged fragmentary detail view of that portion of FIGURE 3 designated by the numeral IV, and wherein there is clearly illustrated the manner in which oppositely moving belt runs engage above and below vertically offset yarn portions, for providing clockwise yarn twisting.
  • FIGURE 5 is an enlarged fragmentary detail view of that portion of FIGURE 3 designated by the numeral V,
  • FIGURE 1 wherein there is illustrated a portion 10 of a knitting machine, comprising opposite frame sides 11 and 12 which have respective frame side extensions 13 and 14.
  • the frame side extension 13 includes, at the extreme right end thereof, as viewed in FIGURE 1, an inwardty projecting beam journal portion 15.
  • the frame side extension 14 has connected thereto a beam journal portion 16, offset from the side extension 14 by a transversely disposed frame portion 17.
  • a beam 18, having axially extending shaft portions and 21 is carried between the axially inwardly directed journal portions 15 and 16, in transversely offset relation to an imaginary longitudinal center line of the knitting machine 10.
  • a sley bar 22 having a plurality of upstanding guide pins 23 thereon is disposed transversely of the clockwise twisting texturizing apparatus generally designated by the numeral 24, between the frame side extensions 13 and 14.
  • a pair of nip rolls 25 and 26 are disposed downstream of the sley bar 22, in vertically aligned relationship, to
  • the rolls 25 and 26 are also carried at their ends by the frame side extensions 13 and 14.
  • a heater 27 is disposed between the frame side extensions 13 and 14, downstream of the nip rolls 25 and 26, the heater 27 having upper and lower arcuately curved surfaces 28 and 30, respectively.
  • a mounting bracket 31 is carried by the frame extension 14, downstream of the heater 27, and has a sley bar 32 mounted thereon, extending transversely of the texturizing apparatus 24, the sley bar 32 having a plurality of upstanding pins 33 across its width, for guiding yarns therebetween.
  • a pair of carrier brackets 34 and 35 extend inwardly of the respective frame side extensions 13 and 14, and carry a sley bar 36 therebetween upon which is mounted a plurality of upstanding separator pins 37, the separator pins 37 being disposed along the bar 36 transversely thereof, for guiding and separating yarns passing therebetween.
  • the carrier bracket 34 carries longitudinally disposed shafts 38 and 40 upon which a pair of pulleys 41 and 42 are respectively rotatably carried. Similarly, a pair of shafts 43 and 44 extend longitudinally upstream or rightward, as viewed in FIGURE 1, carrying respective pulleys 45 and 46 rotatably mounted thereon.
  • a pulley belt 47 is carried by and between pulleys 41 and 45, and has a run 48, disposed adjacent a run 51 of a pulley belt 50, carried between the pulleys 42 and 46.
  • the yarns conveyed longitudinally of the apparatus 24 are adapted to pass between the runs 48 and 51 of the respective pulley belts 47 and 50, and with respect to yarns passing between the runs 48 and 51, the run 48 is a lower run and the run 51 is an upper run.
  • the runs 48 and 51 of the respective pulleys 47 and 50 are disposed as viewed in FIGURE 2, with the runs 48 and 51 partially horizontally adjacent each other to preclude a straight line path of yarn from the upper surface 28 of the heater 27 to a' downstream pair of nip rolls 52 and 53, the rolls 52 and 53 being carried between the frame side extensions 13 and 14.
  • the lower and upper runs 48 and 51 respectively are offset longitudinally of the machine, and are thus not disposed in vertical alignment. This facilitates the tendency for yarns conveyed between the runs 48 and 51 to follow the rounded configuration of the runs 48 and 51, for a slight arc, for a purpose later to be described.
  • the shafts 38 and 40 also carry respective pulleys 54 and 55, which are rotatably connected by means of a toothed belt 56, for rotation of the pulleys 54 and 55, and consequently for rotation of the shafts 38 and 40 in the same direction.
  • a gear 57 is carried by the shaft 38, being keyed or otherwise suitably secured to the shaft.
  • a shaft 58 also extends longitudinally from the gear 57, and a motor 60 is mounted on the frame side extension 13, for rotatably driving the shaft 58, the gear 57 the 4 shaft 38, and the pulleys 41 and 54 and consequently the pulleys 55 and 42.
  • an apparatus Disposed below the apparatus 24 which is adapted to provide texturized yarns which have been twisted in a clockwise direction, is an apparatus generally designated by the numeral 62 which is adapted to provide texturized yarns which have been twisted in a counterclockwise direction as viewed looking downstream of the knitting machine 10.
  • This apparatus 62 is generally similar to the apparatus 24, and includes components generally mounted directly beneath similar respective components of the apparatus 24.
  • the apparatus 62 includes a beam 63, mounted between the frame side extensions 13 and 14, a sley bar 64 having downwardly extending guide pins 65, and upper and lower nip rolls 66 and 67, respectively.
  • the apparatus 62 also utilizes the lower surface 30 of the heater 27. Disposed downstream of the lower surface 30 of the heater 27 is a sley bar 63 having downwardly depending guide pins 70, and spaced downstream of the sley bar 68 is a sley bar 71 having depending guide pins 72 carried thereby.
  • a pair of downstream nip rolls 73 and 74 are also provided, disposed between the frame sides 13 and 14, as are the other components, beneath their respective counterparts in the apparatus 24.
  • the pulley belt 75 is carried be tween a pair of pulleys 77 and 78, carried on respective shafts 80 and 81, which are, in turn, carried by the mounting brackets 35 and 34, respectively.
  • a pulley 82 is also mounted on the shaft 81.
  • the pulley belt 76 is disposed about a pair of pulleys 83 and 84 which are, in turn, carried by a pair of shafts 8'5 and 86, also carried by the brackets 35 and 34, respectively.
  • a pulley 87 is also mounted on a shaft 86, for rotation therewith, and is driven through a toothed belt 88 from the pulley 82 carried by the shaft 81.
  • a gear 90 is also carried by the shaft 81, and provides driving rotation for the shafts 80, 81, 85 and 86 in that it is engaged with the gear 57 carried by the shaft 38.
  • the pulley belts 75 and 76 of the apparatus 63 provide respective upper and lower belt runs 91 and 92.
  • the upper and lower belt runs 91 and 92 are also offset longitudinally of the apparatus 62, and are disposed partially adjacent each other horizontally to preclude a straight line path from the surface 30 of the heater 27 to the nip between the downstream rolls 73 and 74, as viewed in FIGURE 2.
  • the pulley belts 47, 50, 75 and 76 are generally of circular, oval, or any other arcuate cross section or the like, and may be constructed of rubber or similar synthetic materials having the desired friction characteristics for providing twist to yarns conveyed therebetween, in a manner later to be described.
  • a standard knitting machine roll 93 disposed between the frame sides 11 and 12, for rotation. Yarns passing through both of the apparatus 24 and 62 in a downstream direction are delivered to and over the roll 93, and conventionally through the remaining portions of the knitting machine 10.
  • Drive means 94 are provided for the rolls 25; 26, 52; 53, 66; 67, and 73; 74 comprising pulleys 95 and 96 disposed at ends of the rolls and connected by one or more pulley belts 99.
  • a suitable motor (not shown) is provided for driving the pulleys 95 and 96 and pulley belt 97.
  • the yarns Y are threaded in a similar manner, from the beam 63, between the pins 65 of the sley bar 64, between the nip of the rolls 66 and 67, over the surface 30 of the heater 27, between the pins 70 of the sley bar 68, beneath the run 91 of the pulley belt 75, over the run 92 of the pulley belt 76, between the pins 72 of the sley bar 71, and between the nip of the rolls 73 and 74.
  • the yarns Y and Y are continuously drawn through the apparatus 24 and 62.
  • the gears 57 and 90 are oppositely rotated, as shown in FIGURE 3, such rotation being provided through the various pulleys and belts illustrated, such that the belt run 51 is directed toward the right, as viewed in FIGURE 3, and the belt run 48 is directed to the left, as viewed in FIGURE 3, with the yarns Y passing therebetween.
  • the belt run 91 is directed leftward, as viewed in FIG- URE 3, and the belt run 92 is directed to the right as viewed in FIGURE 3, with the yarns Y passing downstream therebetween.
  • each downstream moving yarn Y passes over the upper surface of the lower run 48, and beneath the lower surface of the upper run 51, such engagement of the yarns Y by the runs 48 and 51 being adapted to provide each yarn Y with a clockwise direction of false twist as illustrated in FIGURE 4.
  • runs 91 and 92 provide each yarn Y with a counterclockwise direction of false twist as indicated in FIGURE 5.
  • a plurallty of yarns Y passing between the oppositely moving runs 48 and 51 are provided with a clockwise direction of twist.
  • This twist is continuously applied, and extends across the entire twist zone between the rolls 25, 26 and the rolls 52, 53.
  • the longitudinally moving yarns Y in this twist zone are subjected to a desired amount of heat from the heater 27, in passing over the upper surface 28 of the heater 27, for heat-setting the yarns, in their twisted condition.
  • the twist will exponentially diminish beyond the downstream rolls 52, 53, due to that substantially greater length for accommodating the spread, as compared to the length of the twist zone, the twist which has been applied by the oppositely moving belt runs 48 and 51 and which has been set therein by the heater 27 is spread over the increased yarn length downstream of the rolls 52, 53, thus effectively providing a high degree of untwisting of the yarns Y after they pass through the nip between the rolls 52 and 53, and again re-orienting the filaments 0f the yarns Y and leaving them in a highly bulked and texturized condition.
  • the yarns Y are subjected to the same conditions of false twisting and heating as are the yarns Y and are untwisted as they pass through the nip between the rolls 73 and 74, the yarns Y differing from the yarns Y only in the direction of the applied twist.
  • the result of the oppositely applied twist to the yarns Y and Y is to supply alternately twisted yarns to a knitting portion of a knitting machine 10, the composite yarn supply meas ured transversely of the machine being balanced.
  • the sets of pins 23, 33, 37 65, 70, and 72 perform only guiding functions, in maintaining the yarns passing thereby separated from one another, and thus provide yarn paths through the apparatus 24 and 62, and eliminate yarn entanglements and the like.
  • the heater 27 may be raised to any desirable temperature, such as will effect the desired heat-setting of the yarn filaments.
  • the nip rolls 25; 26, 52; 53, 66; 67, and 73; 74 may be set at desirable nip pressures and speeds to provide end limits for the twist zones of the apparatus 24 and 62, and to provide yarn tension between roll sets operated at different speeds, if desired.
  • the relative positions of the runs 51 and 91, with respect to their associated runs 48 and 92, may be varied, as desired, depending upon the desired degree of twist for the yarns Y and Y
  • the desired quality of the bulked yarns Y and Y may be a controlling factor, in placing the individual yarn runs, as it will in determining the speed of transverse movement of the runs.
  • the runs 48 and 51, as well as the runs 91 and 92 are offset longitudinally from one an other, such that the yarns Y follow the rounded contour of each of the belt runs 48 and 51, for a slight distance, to provide sufiicient surface engagement of the yarns Y by the belt runs 48 and 51, to enable the desired twisting, as well as to facilitate twisting under the desired pressure, the vertical offset in the paths of the yarns Y passing between the belt runs 48 and 51 also providing the desired force of engagement of the yarns Y by the belt runs 48 and 51.
  • a similar phenomenon is experienced by the yarns Y in their contact by and movement between the belt runs 91 and 92.
  • yarns which pass from the run 48 to the run 51 have a tendency to follow the movement of the run 51 toward the frame side 13 thereby providing the angular offsets in the yarn paths between the pulley belts 47 and 50, as illustrated in plan in FIG. URE 1.
  • the beams 18 and 63 may then be offset an amount sufiicient to compensate for this tendency of the yarn portions to follow moving belt runs by which they will next be engaged during the false twisting operation.
  • the beam 63 is disposed offset toward the frame side 13, directly beneath the beam 18, due to the positions and relative movement of the belt runs 91 and '92.
  • the pulley belt 50 may be disposed for vertical movement relative to the pulley belt 47, if desired, to facilitate threading of the yarns Y therebetween.
  • the pulley belts 75 and 76 may also be mounted for relative vertical movement to facilitate threading.
  • a cooling zone (not shown) may be provided just downstream of the heater 27, if desired. Cooling of the heated yarns may be done by forced air, or often by the ambient air in the machine vicinity, or by any other suitable means.
  • the motor '60 which drives the pulley belts may be replaced by a drive connection to the main drive (not shown) of the knitting machine, if a synchronous drive is desirable.
  • yarn processing machine shall include knitting, weaving, and tufting machines, devices for winding yarn or spools, bobbins or the like, specialized processing equlpment such as dyeing equipment, prehandling devices, and similar or related machines.
  • An apparatus for facilitating the provision of texturized yarns comprising means providing paths for continuous yarn travel, means defining a twist zone, means for continuously applying false twists to yarns moving along their paths through the twist zone, and means for setting twisted yarns in the twist zone, wherein said means for continuously applying false twists comprise continuously oppositely movable belt runs for frictionally engaging and twisting yarns, wherein said belt runs are disposed transversely of the direction of yarn travel for receiving a plurality of yarns therebetween, wherein said runs are disposed for off-setting the paths of yarn travel therebetween from a common plane taken through a plurality of laterally spaced yarns delivered to said runs.
  • An apparatus for facilitating the provision of texturized yarns comprising means providing paths for continuous yarn travel, means defining a twist zone, means for continuously applying false twists to yarns moving along their paths through the twist zone, and means for setting twisted yarns in the twist zone, wherein said means for continuously applying false twists comprise continuously oppositely movable belt runs for frictionally engaging and twisting yarns, wherein one of said belt runs is disposed slightly upstream relative to the other of said runs.
  • said setting means comprises means for heat-setting the yarns.
  • An apparatus for facilitating the provision of texturized yarns comprising means providing paths for continuous yarn travel, means defining a twist zone, means for continuously applying false twists to yarns moving along their paths through the twist zone, and means for setting twisted yarns in the twist zone, wherein said means for continuously applying false twists includes means for oppositely twisting yarns across said apparatus.
  • said latter means comprise means for twisting adjacent yarns across the apparatus in alternate clockwise and counterclockwise directions, said twisting means including pairs of continuously oppositely movable belt runs.
  • a yarn processing machine comprising a frame, means carried by said frame for handling texturized yarns, means providing paths for continuous yarn travel and defining a twist zone, means carried by said frame for continuously applying false twists to yarns moving along their paths through the twist zone, and means for setting twisted yarns in the twist zone, wherein said means for continuously applying false twists comprise continuously oppositely movable belt runs for frictionally engaging and twisting yarns, wherein said runs are disposed for off-setting the paths of yarn travel therebetween from a common plane taken through a plurality of laterally spaced yarns delivered to said runs.
  • An apparatus for facilitating the provision of texturized yarns comprising means providing paths for continuous yarn travel, means defining a twist zone, means for continuously applying false twists to yarns moving along their paths through the twist zone, and means for setting twisted yarns in the twist zone, wherein said means for continuously applying false twists comprise continuously oppositely movable belt runs for frictionally engaging and twisting yarns, wherein said runs comprise means for simultaneously offsetting the plurality of yarns conveyed therebetween from their respective paths of travel.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
US690294A 1967-12-13 1967-12-13 Friction twisting apparatus Expired - Lifetime US3482384A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US69029467A 1967-12-13 1967-12-13

Publications (1)

Publication Number Publication Date
US3482384A true US3482384A (en) 1969-12-09

Family

ID=24771901

Family Applications (1)

Application Number Title Priority Date Filing Date
US690294A Expired - Lifetime US3482384A (en) 1967-12-13 1967-12-13 Friction twisting apparatus

Country Status (7)

Country Link
US (1) US3482384A (enrdf_load_stackoverflow)
BE (1) BE725332A (enrdf_load_stackoverflow)
DE (1) DE1809301A1 (enrdf_load_stackoverflow)
ES (1) ES361808A1 (enrdf_load_stackoverflow)
FR (1) FR1604034A (enrdf_load_stackoverflow)
GB (1) GB1212059A (enrdf_load_stackoverflow)
NL (1) NL6817649A (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3631664A (en) * 1968-06-14 1972-01-04 Macotex Machinery Ltd Method of, and apparatus for, delivering yarns to textile machines
US3979894A (en) * 1972-09-29 1976-09-14 Oda, Gosen Kogyo Kabushiki Kaisha False-twisting apparatus for producing crimps in filament yarns
DE102013108096A1 (de) * 2013-07-29 2015-01-29 Maschinenfabrik Rieter Ag Spinnmaschine und Falschdralleinrichtung
CN110644085A (zh) * 2019-09-01 2020-01-03 嘉兴学院 一种带有断头断点控制的单锭双轮带组合结构假捻集聚纺装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49102955A (enrdf_load_stackoverflow) * 1973-02-12 1974-09-28
ES2228239B1 (es) * 2003-01-22 2007-08-16 Galan Int, S.L. Maquina multi-dispositivo para tratar hilos antes de ser tejidos aplicando un tratamiento mecanico provisional.

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2778186A (en) * 1950-11-24 1957-01-22 Luttgen Kommanditgesellschaft Textile processing apparatus
US2991614A (en) * 1953-03-25 1961-07-11 Ubbelohde Leo False twisting apparatus for producing crimped filamentary materials
US3045416A (en) * 1958-09-15 1962-07-24 Ubbelohde Leo False twisting device
US3103097A (en) * 1959-11-28 1963-09-10 Heberlein Patent Corp Yarn twisting apparatus
US3120049A (en) * 1962-06-26 1964-02-04 Richard C Spurgeon Method of producing hose
US3148520A (en) * 1957-08-21 1964-09-15 Patentex Inc Method for simultaneously throwing and knitting of yarn
US3228181A (en) * 1963-03-22 1966-01-11 British Nylon Spinners Ltd Production of yarns with varying twist
US3336738A (en) * 1962-12-03 1967-08-22 Klinger Mfg Co Ltd Apparatus for false twist-crimping of yarn
US3367006A (en) * 1964-05-27 1968-02-06 Klinger Mfg Co Ltd Heating apparatus
US3382656A (en) * 1966-01-03 1968-05-14 Chavanoz Moulinage Retorderie False-twist frames and method for texturing synthetic filaments
US3398220A (en) * 1964-06-26 1968-08-20 Parker Pace Corp Process for converting a web of synthetic material into bulk yarns

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2778186A (en) * 1950-11-24 1957-01-22 Luttgen Kommanditgesellschaft Textile processing apparatus
US2991614A (en) * 1953-03-25 1961-07-11 Ubbelohde Leo False twisting apparatus for producing crimped filamentary materials
US3148520A (en) * 1957-08-21 1964-09-15 Patentex Inc Method for simultaneously throwing and knitting of yarn
US3045416A (en) * 1958-09-15 1962-07-24 Ubbelohde Leo False twisting device
US3103097A (en) * 1959-11-28 1963-09-10 Heberlein Patent Corp Yarn twisting apparatus
US3120049A (en) * 1962-06-26 1964-02-04 Richard C Spurgeon Method of producing hose
US3336738A (en) * 1962-12-03 1967-08-22 Klinger Mfg Co Ltd Apparatus for false twist-crimping of yarn
US3228181A (en) * 1963-03-22 1966-01-11 British Nylon Spinners Ltd Production of yarns with varying twist
US3367006A (en) * 1964-05-27 1968-02-06 Klinger Mfg Co Ltd Heating apparatus
US3398220A (en) * 1964-06-26 1968-08-20 Parker Pace Corp Process for converting a web of synthetic material into bulk yarns
US3382656A (en) * 1966-01-03 1968-05-14 Chavanoz Moulinage Retorderie False-twist frames and method for texturing synthetic filaments

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3631664A (en) * 1968-06-14 1972-01-04 Macotex Machinery Ltd Method of, and apparatus for, delivering yarns to textile machines
US3979894A (en) * 1972-09-29 1976-09-14 Oda, Gosen Kogyo Kabushiki Kaisha False-twisting apparatus for producing crimps in filament yarns
DE102013108096A1 (de) * 2013-07-29 2015-01-29 Maschinenfabrik Rieter Ag Spinnmaschine und Falschdralleinrichtung
CN110644085A (zh) * 2019-09-01 2020-01-03 嘉兴学院 一种带有断头断点控制的单锭双轮带组合结构假捻集聚纺装置
CN110644085B (zh) * 2019-09-01 2023-07-21 嘉兴学院 一种带有断头断点控制的单锭双轮带组合结构假捻集聚纺装置

Also Published As

Publication number Publication date
ES361808A1 (es) 1970-12-16
NL6817649A (enrdf_load_stackoverflow) 1969-06-17
FR1604034A (enrdf_load_stackoverflow) 1971-06-28
GB1212059A (en) 1970-11-11
DE1809301A1 (de) 1969-08-14
BE725332A (enrdf_load_stackoverflow) 1969-06-12

Similar Documents

Publication Publication Date Title
US3091908A (en) Apparatus and method for false twisting yarns
US3404525A (en) Low-torque multifilament compact yarn
US3112600A (en) Method and apparatus for processing yarns
US2939269A (en) Apparatus for twisting and/or crimping yarn
US3009312A (en) Methods of producing torque yarns
US3482384A (en) Friction twisting apparatus
US3796036A (en) Method of processing yarn
US3680302A (en) False twisting apparatus
US2890568A (en) Production of voluminous yarn
US3445996A (en) Preheating in yarn texturing
US4027467A (en) Uniroll false twist device and method
US2968909A (en) Producing dual torque yarn
US3820316A (en) Method and apparatus for twist plied yarn and product thereof
US3422613A (en) Yarn assembly apparatus for false twisting yarn
US3932986A (en) Method for manufacturing a textured synthetic multifilament yarn having alternately grouped S and Z twists
US3341913A (en) Drawing and bulking of synthetic polymer yarns
US3724191A (en) Treatment of synthetic yarns
US3330104A (en) False twist spindle with auxiliary reverse-twist element
US3175348A (en) Process and apparatus for making bulked filament yarns
US2918778A (en) Textile machine
US4972563A (en) Yarn texturing machine
US4442663A (en) Belt-operated false-twisting unit
US3623311A (en) Apparatus for producing synthetic torque yarns
JPS60126331A (ja) 仮撚機における糸冷却方法
US3603068A (en) Apparatus for false twisting

Legal Events

Date Code Title Description
AS Assignment

Owner name: WARNER & SWASEY COMPANY, THE, 11000 CEDAR AVENUE,

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:WARNER & SWASEY COMPANY,THE A DEL CORP.;REEL/FRAME:004365/0760

Effective date: 19850116