US3776479A - Method of and device for detecting the yarn end from a crosswound bobbin in automatic yarn winding machines - Google Patents

Method of and device for detecting the yarn end from a crosswound bobbin in automatic yarn winding machines Download PDF

Info

Publication number
US3776479A
US3776479A US00118362A US3776479DA US3776479A US 3776479 A US3776479 A US 3776479A US 00118362 A US00118362 A US 00118362A US 3776479D A US3776479D A US 3776479DA US 3776479 A US3776479 A US 3776479A
Authority
US
United States
Prior art keywords
yarn
knotter
detecting
supply
take
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
US00118362A
Other languages
English (en)
Inventor
J Lutovsky
V Prasil
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.)
Elitex Zavody Textilniho
Original Assignee
Elitex Zavody Textilniho
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 Elitex Zavody Textilniho filed Critical Elitex Zavody Textilniho
Application granted granted Critical
Publication of US3776479A publication Critical patent/US3776479A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H69/00—Methods of, or devices for, interconnecting successive lengths of material; Knot-tying devices ;Control of the correct working of the interconnecting device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H69/00—Methods of, or devices for, interconnecting successive lengths of material; Knot-tying devices ;Control of the correct working of the interconnecting device
    • B65H69/04—Methods of, or devices for, interconnecting successive lengths of material; Knot-tying devices ;Control of the correct working of the interconnecting device by knotting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • the present invention relates to a method of eliminating a failureof the automatic process for removing an interruption of the yarn winding process in automatic winding machines due to a failure in feeding the yarn end from the crosswound bobbin into the yarn knotter, and to a device for performing said method.
  • Automatic crosswinding machines with stationary winding units and provided with a knotter on each of said winding units have certain disadvantages as does any highly-automated device.
  • the said disadvantages consist in that in the case of omitting only one step of the automatic procedure for removing the winding process due to breakage of the yarn being wound, or upon exhausting its supply on the supply cop, the efficiency of said machines is reduced by prolonging the time necessary for removing the causes of the interruption of the winding process, particularly by putting higher requirements on the attendance of the winding units by operators, or by performing the process of manually removing the cause of the interruption of the winding process itself.
  • the yarn end of the supply cop is not available upon automatic repetition of the automatic procedure for removing the interruption of the winding process by knotting together the two yarn ends, the supply cop being automatically ejected during the following step onto a belt conveyor and brought thereby to the end of the machine, where it must be found by the operator and again filled into a magazine of one of the winding units of the machine.
  • the present invention has among its objects the overcoming of the said disadvantage or to mitigate it by applying a further stop motion into the automatic device for removing the interruption of the winding process, said further stop motion preventing the yamend from the supply cop from entering the knotter in the case in which the presence of the yarn end from the crosswound bobbin has not been detected in the position necessary for the introduction of such yarn into the yarn knotter.
  • the subject matter of the method according to the present invention consists particularly in that, by means of a stop motion detecting the presence of the yarn end from the crosswound bobbin in the position after said yarn end has left the detecting tube, the introduction of the yarn end from the supply cop into the yarn knotter is prevented in the case of absence of said yarn end from the crosswound bobbin; the introduction of the two yarn ends is, on the other hand, enabled upon the presence of the yarn end from the crosswound bobbin in the same cycle of the automatic procedure for removing the interruption of the winding process.
  • the device for performing the method according to the present invention is constituted by a stop motion consisting, on one hand, of a detecting part for detecting the presence of the yarn end from the crosswound bobbin in its position after leaving the detecting tube, and, on the other hand, of an active part preventing, either indirectly or directly, the introduction of the yarn end from the supply cop into the yarn knotter in the case of absence of the yarn end from the crosswound bobbin in the given position.
  • FIG. 1 is an axonometric view of a winding unit provided with a first embodiment of a device in accordance with the present invention
  • FIG. 2 is a diagram of the course of the winding process, in front view, the view showing yarn breakage during winding;
  • FIG. 2a is a diagrammatic view in plan of the positioning of the two yarn ends in the upper part of the in serting lever of the automatic mechanism for removing the interruption of the yarn winding process on the winding unit in a case such as that shown in FIG. 2;
  • FIG. 2b is a plan view diagram of the positioning of the two yarn ends in the lower part of the inserting lever of the automatic mechanism for removing the interruption of the yarn winding process on the winding unit in a case such as that shown in FIG. 2;
  • FIG. 3 is a diagram of the course of yarn winding, in front view, the view showing the changing of an empty cop for a new one, i.e. upon the first knotting of the two yarn ends after exchange of the supply cop;
  • FIG. 3a is a plan view diagram of the positioning of the two yarn ends in the upper part of the inserting lever of the automatic mechanism for removing the interruption of the yarn winding process on the yarn winding unit in a case such as shown in FIG. 3;
  • FIG. 3b is a plan view diagram of the positioning of the two yarn ends in the lower part of the introducing lever of the automatic mechanism for removing the interruption of the winding process on the yarn winding unit in a case such as that shown in FIG. 3;
  • FIG. 4 is an axonometric diagram of a yarn knotter provided with a second embodiment of the device according to the present invention.
  • FIG. 1 there is there shown a known yarn winding unit having a cop 1, from which yarn generally designated 31 is guided upwardly over guide 2, clearer 3, introducing lever 10, stop motion 35, brake 38, a further stop motion 39, clearer 42, and guide 43 to the yarn distributor 44, by means of which said yarn is distributed on the crosswound bobbin 32.
  • the detecting sucking tube 4 the mouth of which is located approximately on the line of contact between distributor 44 and crosswound bobbin 32, is mounted in front of the winding unit and connected with its lower end to a sucking pipeline (not shown) common to all winding units of the automatic winding machine.
  • the detecting tube 4 is provided on the wall pointing to the winding unit with a slot 5, which can be covered about its whole length with a swingable flap (not shown).
  • the introducing lever is swingable about pivot 1 1 and consists of the upper arm 10a, and the lower arm 10b, mounted parallel one above each other. Those two arms 10a, 10b are interconnected by a column 12, which is provided with a recess (not shown), approximately in its central part.
  • the upper arm 10a of the introducing lever 10 is connected by means of a tie rod 20, one end of which is fastened to the upper arm 10a by means of pivot 19, while the other end is connected by means of pivot 21 to the bent lever 22 which is pivotable about pivot 23.
  • a roller 24 is situated, roller 24 being in contact with the surface of cam 25 mounted rotatably on shaft 26, said cam controlling, by means of the said parts, the swinging motion of the introducing lever 10.
  • Roller 24 is pulled into contact with the surface of cam 25 by means of a spring 27, one end of which is suspended in the opening 28 of the upper arm 10a of introducing lever 10, and the other end is affixed to a machine frame (not shown).
  • the upper arm 10a of the introducing lever 10 is provided at its end with detents 15, 16, l7, 18.
  • the lower arm 10b of the introducing lever 10 is provided with detents 13, 14.
  • the knotter 29, which is stationarily mounted on the machine frame (not shown) is located between the upper arm 10a and the lower arm 10b.
  • the yarn knotter 29 (See FIG. 4) is provided in its central part with two recesses, of which recess 30 is destined for or designed to receive end 31' of yarn 31 from the crosswound bobbin 32 and recess 33 is designed to receive the end 31 of yarn 31 from the supply cop l.
  • the two recesses are separated by a separating projection 34 located between them.
  • Stop motion 35 mounted above the yarn knotter 29, consists of stationary part 36 and movable part 37 (see FIGS. 2 and 3), the stop motion 35 being connected with a device (not shown) for changing the supply cop; such device is activated by said stop motion 35 in the case of detecting the absence of yarn.
  • a brake 38 Above stop motion 35 there is located a brake 38; beside brake 38 there is located a sucking tube 50 connected to a sucking pipeline (not shown) common for all winding units of the machine. In the said sucking tube 50 there are caught by the action of vacuum or underpressure the yarn ends of cops (not shown) located in the supply position in a magazine (not shown).
  • Stop motion 39 consists of a stationary part 40 and a movable part 41 (see FIGS. 2 and 3), and is connected to a device (not shown) for stopping the winding unit in the case of the absence of yarn in said stop motion 39, as well as for initiating the automatic process for removing the interruption of the winding process.
  • a yarn clearer 42 Above said stop motion 39 there is mounted a yarn clearer 42.
  • a further sucking tube 49 which extends near clearer 42, is connected to the sucking pipeline common to all winding units of the machine.
  • the device according to the present invention in the first illustrative embodiment, shown in FIGS. 1, 2, and 3, includes a bent lever 6, pivotably mounted upon a pivot 8 between the lower part of detecting tube 4 in front of slot 5.
  • An arm 6' of lever 6 is disposed below the lower arm 10b of introducing lever 10.
  • the detecting arm 6' of bent lever 6 which comes into contact with yarn 31, is held in its position by means of spring 7 mounted with its other end affixed to the wall of the detecting tube 4.
  • the active arm 6a of bent lever 6 is provided at its end with a detent 9 which engages the appurtenant recess in column 12 connecting the two arms 10a, 10b of the introducing lever 10, or a recess (not shown) on any other suitable point of the introducing lever 10.
  • a covering plate 51 mounted above, or below the yarn knotter 29 at the point of recesses 30, 33 and the separating projection 34.
  • the covering plate 51 is mounted upon a pivot 52 affixed to the body of knotter 29, and is swingable about it.
  • a stop limit 55 against which the plate 51 bears; on the extremity of plate 51 above pivot 52 one end of a coil tension spring 56 is fastened, the other end of said spring being fastened to yarn knotter 29.
  • knotter 29 there are employed two covering plates 51, of which one is located above and the other below yarn knotter 29. The other parts are the same for both plates.
  • the interruption of the yarn winding process can occur in two cases:
  • the above-described device performs the method according to the present invention in the following manner.
  • the bent lever 6 swings out in the direction of arrow I about pivot 8, whereupon detent 9 on the active arm 6a of bent lever 6 is disengaged from a recess (not shown) on column 12, or, in an alternative embodiment (not shown) from another suitable point of introducing lever 10.
  • the introducing lever 10 performs a swinging motion in the direction towards the yarn knotter 29, into which the two ends 31", 31' of yarn 31 are introduced and in which they are knotted together in a known manner (not shown).
  • end 31 of yarn 31 is also introduced from the crosswound bobbin 32 into stop motion 35, brake 38, stop motion 39, clearer 42, and guide 43.
  • the parts of the two ends 31', 31" of yarn 31 between the yam knotter 29 and the tube 49 are sucked off and the winding process is carried on in the usual manner.
  • end 31" of yarn 31 from the cop 1 is not introduced into the yarn knotter 29; if it were, a part of said yarn between the yarn knotter 29 and tube 49 would be cut off and sucked off by tube 49.
  • stop motion 35 would emit an impulse for removing the interruption of the winding process.
  • the end 31" of yarn 31 from the supply cop 1 is held outside the yarn knotter 29 in the introducing lever 10, and it is possible to repeat the detection of end 31' of yarn 31 from the crosswound bobbin 32.
  • the end 31" of yarn 31 from the supply cop 1 thus remains thus even longer in stop motion 35, which does not emit said impulse. There is thus caused no change of cop 1 which would otherwise occur, because the first knotting attempt for knotting together the two ends 31', 31" of yarn 31 was not successful, even when the supply of yarn 31 on cop 1 is not yet exhausted.
  • the bent lever 6 is swung out in the direction of arrow 1 about pivot 8, whereupon detent 9 on the active arm 6a of bent lever 6 is disengaged from the recess (not shown) on column 12, (or at another suitable point on introducing lever 10 as above explained).
  • the cycle of the automatic operation for removing the interruption of the winding process is thus repeated during: (a) the course of the operation in this second mentioned case, i.e. in the case of knotting together the ends 31', 31" of yarn 31 upon exchange of cop 1, (b) in the first case, i.e. upon breakage of yarn 31, and (c) even in the case in which the end 31' of yarn 31 from I the crosswound bobbin 32 has not been detected in the course of the first knotting attempt.
  • the introducing lever swings out in the direction towards the yarn knotter when the two ends 31', 31" of yarn 31 are located therein, as well as in the case in which only end 31" of yarn 31 from the supply cop is located therein.
  • a stop motion is mounted on said yarn knotter in the embodiment shown in FIG. 4.
  • the introducing lever 10 introduces the two ends 31, 31" of yarn 31, that from the crosswound bobbin 32 bears against edge 54 of the covering plate 51, or the corresponding edges of both covering plates if two are used.
  • the introducing lever 10 introduces, in the direction towards the knotter 29, only the end 31" of yarn 31 from the supply cop 1.
  • the covering plate or plates 51 on the yarn knotter 29 are not swung out in the direction of arrow II, thus not permitting access to either recess 33, or recess 30.
  • the yarn knotter 29 performs the knotting attempt completely empty, i.e. the part of end 31" of yarn 31 from supply cop 1 between the yarn knotter 29 and sucking tube 50 is not cut off.
  • end 31" of yarn 31 from supply cop 1 is situated in the stop motion 35 above yarn knotter 29, no impulse is emitted by said stop motion 35 for changing cop 1, and the end 31" of yarn 31 from the supply cop l is prepared for being used in case that a repeated attempt for detecting end 31' of yarn 31 from the crosswound bobbin 32 is successful.
  • the advantage of the method and the device according to the present invention consists in that the degree of automation of the winding apparatus is substantially enhanced in a simple manner and by the application of simple means in removing the interruption of the winding process. As a result, the efficiency of the machine is enhanced, and the necessity of manual interference by the operator is reduced to a minimum.
  • a yarn winding apparatus comprising a source of yarn supply, means spaced from the yarn supply for feeding the yarn along a path and for taking up the yarn, a yarn detecting suction tube disposed along said path downstream of the yarn supply, said suction tube locating and picking up a yarn end on the means for taking up the yarn a yarn knotter disposed along said path downstream of the yarn detecting tube, and a yarn stop motion, said stop motion having a yarn detecting means which detects the presence of the end of yarn from the yarn take-up means in the position after its exit from the yarn detecting tube, said stop motion having a means which prevents the introduction of the end of the yarn from the yarn supply means into the knotter in the absence of the end of yarn from the yarn take-up means in said position after the exit of yarn from the yarn detecting tube, and means for introducing the yarn end to the knotter if it is not so prevented.
  • a yarn winding apparatus according to claim 1, wherein the apparatus is an automatic yarn winding machine, the yarn supply is a cop, and the yarn take-up means is so constructed and arranged as to form a crosswound bobbin.
  • Apparatus according to claim 1, wherein the means for introducing yarn into the knotter comprises a lever, the stop motion comprises a pivotally mounted lever having a yarn detecting arm which is in contact with the end of yarn from the yarn take-up means, and the stop motion has an active arm provided with a detent which selectively engages the yarn introducing lever.
  • the knotter has a body having two laterally spaced recesses extending generally normal to the said path of the yarn into which yarn ends may be introduced, said recesses being separated by a projection, and wherein the stop motion is a plate mounted on the body of the knotter for selectively covering the recesses in the body of the knotter.
  • Apparatus according to claim 4 comprising means pivotally mounting the cover plate on the body of the knotter, and yieldable means constantly urging the cover plate to a recess and projection covering terminal position.
  • An automatic method of removing the interruption of the winding process upon the breakage of yarn during the winding process in yarn winding machines having a source of yarn supply, a yarn take-up means spaced from the yarn supply source for supplying the yarn along a path from the yarn supply source to the yarn take-up means, a yarn detecting tube disposed along said path downstream of the yarn supply, and a yarn knotter disposed along said path downstream of the yarn detecting tube, wherein the yarn take-up means and the source of yarn supply each have a broken end of yarn upon yarn breakage, comprising picking up the broken end of yarn from the yarn take-up means by the detecting tube, moving the end of yarn from the detecting tube, detecting the presence of the end of yarn after exit of the end of yarn from the tube, introducing the broken ends of yarn from the take-up means and the source of yarn supply into the yarn knotter when the presence of the end of yarn from the takeup means is detected, and preventing the broken end of yarn from the source of yarn supply from being introduced into the yarn knotter when the presence

Landscapes

  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US00118362A 1970-02-26 1971-02-24 Method of and device for detecting the yarn end from a crosswound bobbin in automatic yarn winding machines Expired - Lifetime US3776479A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS1311A CS151708B1 (en:Method) 1970-02-26 1970-02-26

Publications (1)

Publication Number Publication Date
US3776479A true US3776479A (en) 1973-12-04

Family

ID=5347167

Family Applications (1)

Application Number Title Priority Date Filing Date
US00118362A Expired - Lifetime US3776479A (en) 1970-02-26 1971-02-24 Method of and device for detecting the yarn end from a crosswound bobbin in automatic yarn winding machines

Country Status (3)

Country Link
US (1) US3776479A (en:Method)
JP (1) JPS5142215B1 (en:Method)
CS (1) CS151708B1 (en:Method)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3918651A (en) * 1973-07-02 1975-11-11 Murata Machinery Ltd Method and device for readying of yarn ends, particularly in yarn-winding machines
US4877194A (en) * 1987-04-22 1989-10-31 Murata Kikai Kabushiki Kaisha Method for preventing defective splicing for automatic winders
US4911372A (en) * 1987-07-21 1990-03-27 Murata Kikai Kabushiki Kaisha Yarn joining controlling method for automatic winder
US4988050A (en) * 1988-07-15 1991-01-29 Murata Kikai Kabushiki Kaisha Method of controlling yarn joining operation
US5082194A (en) * 1989-11-14 1992-01-21 W. Schlafhorst Ag & Co. Method and apparatus for evaluating the interruption of winding on a textile winding machine
US5090635A (en) * 1990-02-22 1992-02-25 W. Schlafhorst Ag & Co. Machine for producing cross-wound bobbins or cheeses
US5188304A (en) * 1987-02-27 1993-02-23 Savio S.P.A. Device and process for the handling and the control of the thread on a coner machine during the operation of spool change and of thread joining
US5322228A (en) * 1991-05-20 1994-06-21 Sumitomo Electric Industries, Inc. Method for screening optical fiber and apparatus for carrying out method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3220758A (en) * 1962-09-07 1965-11-30 Reiners Walter Yarn knotting device and control means
US3311312A (en) * 1963-09-17 1967-03-28 Fr Mettler S Sohne Ag Pneumatic apparatus for feeding two ends to a knotter
US3373947A (en) * 1965-09-08 1968-03-19 Elitex Zavody Textilniho Yarn positioning and tying device
US3458912A (en) * 1966-08-17 1969-08-05 Schweiter Ag Maschf Yarn monitoring system
US3599886A (en) * 1968-07-18 1971-08-17 Machinenfabrik Schweiter Ag Automatic winder

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3220758A (en) * 1962-09-07 1965-11-30 Reiners Walter Yarn knotting device and control means
US3311312A (en) * 1963-09-17 1967-03-28 Fr Mettler S Sohne Ag Pneumatic apparatus for feeding two ends to a knotter
US3373947A (en) * 1965-09-08 1968-03-19 Elitex Zavody Textilniho Yarn positioning and tying device
US3458912A (en) * 1966-08-17 1969-08-05 Schweiter Ag Maschf Yarn monitoring system
US3599886A (en) * 1968-07-18 1971-08-17 Machinenfabrik Schweiter Ag Automatic winder

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3918651A (en) * 1973-07-02 1975-11-11 Murata Machinery Ltd Method and device for readying of yarn ends, particularly in yarn-winding machines
US5188304A (en) * 1987-02-27 1993-02-23 Savio S.P.A. Device and process for the handling and the control of the thread on a coner machine during the operation of spool change and of thread joining
US4877194A (en) * 1987-04-22 1989-10-31 Murata Kikai Kabushiki Kaisha Method for preventing defective splicing for automatic winders
US4911372A (en) * 1987-07-21 1990-03-27 Murata Kikai Kabushiki Kaisha Yarn joining controlling method for automatic winder
US4988050A (en) * 1988-07-15 1991-01-29 Murata Kikai Kabushiki Kaisha Method of controlling yarn joining operation
US5082194A (en) * 1989-11-14 1992-01-21 W. Schlafhorst Ag & Co. Method and apparatus for evaluating the interruption of winding on a textile winding machine
US5090635A (en) * 1990-02-22 1992-02-25 W. Schlafhorst Ag & Co. Machine for producing cross-wound bobbins or cheeses
US5322228A (en) * 1991-05-20 1994-06-21 Sumitomo Electric Industries, Inc. Method for screening optical fiber and apparatus for carrying out method
US5441215A (en) * 1991-05-20 1995-08-15 Sumitomo Electric Industries, Ltd. Slitted winding wheel for optical fiber
US5472128A (en) * 1991-05-20 1995-12-05 Sumitomo Electric Industries, Ltd. Method and apparatus for sucking an optical fiber
AU669795B2 (en) * 1991-05-20 1996-06-20 Sumitomo Electric Industries, Ltd. An apparatus for sucking an optical fiber

Also Published As

Publication number Publication date
DE2106233B2 (de) 1976-10-28
DE2106233A1 (de) 1971-09-09
JPS5142215B1 (en:Method) 1976-11-15
CS151708B1 (en:Method) 1973-11-19

Similar Documents

Publication Publication Date Title
US3295775A (en) Method and apparatus for readying the winding operation of yarn supply coils on coil winding machines
US3121540A (en) Automatic yarn-coil winding machine
US2769599A (en) Thread transporting mechanism
US5651507A (en) Yarn splicing device for bobbin-winding textile machines
US4535945A (en) Method and device for locating and holding a thread end
US4619416A (en) Yarn end finding apparatus
GB1117490A (en) Automatic apparatus for binding broken yarns on spinning machines
US3776479A (en) Method of and device for detecting the yarn end from a crosswound bobbin in automatic yarn winding machines
US3251560A (en) Winding machine
JPH0221485Y2 (en:Method)
EP0222245B1 (en) Bobbin inserting device
US3184174A (en) Yarn-spool winding machine with automatic spool-exchanging device
GB727998A (en) Improvements in and relating to yarn winding machines
US3913853A (en) Automatic winding machine
US4558829A (en) Automatic coil winding machine
US4638956A (en) Textile machine for producing cross-wound bobbins
US3281088A (en) Automatic knotting device for broken yarn in automatic winders
US3595493A (en) Device for use with yarn clearer automatic winders
US4953799A (en) Cutting apparatus for severing trailing yarns on spinning bobbins
GB1592718A (en) Spinning machines
US3165275A (en) Coil winding machine with yarn severing device
US3572597A (en) Textile machines
US2936130A (en) Device for seizing, positioning, and tying of starting end of yarn to be wound
US3059867A (en) Device for readying of yarn ends, particularly in yarn-winding machines
US3042328A (en) Spooler type winder