US2442775A - Method and apparatus for plying strands - Google Patents

Method and apparatus for plying strands Download PDF

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US2442775A
US2442775A US580409A US58040945A US2442775A US 2442775 A US2442775 A US 2442775A US 580409 A US580409 A US 580409A US 58040945 A US58040945 A US 58040945A US 2442775 A US2442775 A US 2442775A
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strands
spindle
strand
doubling
package
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US580409A
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Seddon C Nelson
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Akzo Nobel UK PLC
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American Viscose Corp
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    • 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
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/26—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre with characteristics dependent on the amount or direction of twist
    • D02G3/28—Doubled, plied, or cabled threads
    • D02G3/285—Doubled, plied, or cabled threads one yarn running over the feeding spool of another yarn

Definitions

  • a common yarn-feed control means comprising at least one rotatable idler roll about the peripheral surface of which thestrands pass in non-slipping tractive engagement for directing or maintaining the feed of both or all of the yarns to the doubling point at substantially the same speed.
  • a further object of the invention is to provide sucha feed control arrangement of a construction adapted for rapid and easy lacing.
  • Figure 1 shows in vertical elevation, partially in cross section, one embodiment of the invention
  • Figure 2 is an end elevation, partially in section, showing a modification in a multiple end or multiple station machine
  • Figure 3 is a detail view
  • Figure 4 is a view similar to Figure 3, of amodification of the yarn-feeding means
  • Figure 5 shows a modification forplying more than two strands.
  • Figure 7 shows diagrammatically a modification of Figure 6.
  • the doubling system of the present invention comprises a ho!- low twisting spindle 2 rotatably mounted in a support 3 and suitably driven preferably at substantially constant speed, such as by the pulley 4, belt 5 and motor 6.
  • the hollow spindle 2 is mounted at an angle inclined to the vertical and at its upper end is provided with an anti-friction bearing for rotatably supporting a package carrier comprising a tapered member 1 adapted to fit inside the package which may in this instance be wound on the conical core 8, and an annular base 9 which may be weighted at ill to prevent rotation of the package carrier during rotation of the spindle 2-.
  • a shroud l l and removable hood l2 may be provided to prevent interference between the yarns and too rapid unwinding of the yarn from the package therein caused by air currents set up by the ballooning yarn.
  • a hollow guide i3 fits within the open end of the form I and is arranged in alignment with the hollow spindle 2. This guide I3 is hollow and is recessed at It to permit the insertion of a spring tension element IS.
  • the tension element I5 is held in place about the tubular guide l3 by means of a ring it.
  • An additional ring ll may be moved back and forth to adjust the pressure of the spring element I5 against the portion of the guide i3 not cut away adjacent H.
  • a flyer I8 is secured to the spindle 2 between the package carrier and the support 3, and the hollow spindle is provided with an opening 19 adjacent the flyer.
  • Aballoon-controlling guide 20 is mounted on an arm 2i hinged to an extension 3a of the supporting structure.
  • a tension device 22, and a pulley guide 23 are arranged to guide yarn from an outer package carried on a support 24.
  • an arm 25 carrying two canted idler rolls 26.
  • the axesof these rolls extend across the axis of the spindle, so that the yarns proceed side by side out of the hollow spindle substantially parallel to eachother and in substantially nonslipping tractiveengagement about the two rolls as a unit, the canted arrangement of the rolls assuring lateral displacement of the yarns to prevent rubbing contact with their courses passing directly to the rolls as would occur if the rolls 26 were mounted on parallel axes or a single Figure 6 shows a modification for doubling ll idler roll were used.
  • a take-up device 21 with a loop or balloon to the flyer II, the opening ll of the spindle 2 and through the hollow spindle to the rolls 26.
  • the yarn from the inner package proceeds through the guide l3 and then is guided longitudinally through a path extending through the tension device ll through the spindle 2 to the rolls 2.
  • the shroud II and hood l2 prevent interference between the yarns from the difi'erent packages.
  • this path is considered to be the hollow bore within the spindle 2 and the two would be to have the same tension exerted upon each of the yarns, the use of the feeding means of the present invention allows considerable difference to be present in such tensions without such difference producing a noticeable eifect upon the final doubled structure.
  • the machine comprises a framework having central uprights 32 carrying a lower supporting platform 24 and upper supports 2
  • Such supports are carried on each side of the center of the machin as viewed endwise in Pigvure 2, and only the details of one side are shown in full and described hereinafter.
  • a rail 28 having a plurality of supporting bearings 21, one for arns proceed substantially in the same general path side by side to the rolls 2. and about the rolls without being twistedtogether. Since the spindle 2 rotates with rolls 2!
  • the idler roll assembly rotates as a unit about this axis and at the same speed as the spindle and the fiyer carried'thereby and doubling occurs approximately at thepoint where the two yarns leave the rolls 2. to proceed to the I take-up 21. While the two yarns are not twisted together until they are about to leave the rolls 2'. they are twisted about their individual axes in a direction opposite to the doubling or cabling twists of the plied yarns. Thus. if the spindle 2 is rotated in a clockwise direction as viewed from above, Z-twist is put into the individual yarns before they reach the rolls 2!, but s-twist is present in the doubled structure.
  • the combination of such twists in the final structure resulting in the lay of the fibers or filaments in the final structure being substantially parallel to the axis of the structure.
  • the final cord will have the opposite or Z-twist,
  • the number of twists per inch in thefinal cord structure can be controlled by predetermining the relation between the speed of rotation of the spindle with respect to the speed of the take-up.
  • Figure 4 shows a modification of the yarnfeed control rolls in accordance with which two or more rolls 26a rotatably mounted 'on parallel axes arranged across the extended axis of the spindle 2 are carried by the arm 25. Three are actually shown in alignment so that the yarns proceed from the hollow spindle side by side in a sinuous path about each of the rolls in succession.
  • the rolls, as in Figure 3. are open at one end and by thus being free of obstruction are readily laced.
  • each roll may have a shorter axial length than that of its immediate predecessor, which again facilitates lacing.
  • the axes of the several mils of Figure 4 may also be offset to increase the arc of contact with the yarns thereabout to assure non-slipping contact.
  • the rolls 2! or 24a may be provided with grooves for receiving the yarn but this is not essential or preferred.
  • each hollow spindle 2 of each unit extends the length of the machine above the intermediate platform 24.
  • the pulleys 4 of the units are driven by a belt is operating in connection with the pulley 28 on the driving shaft It running the length of the machine. vided to direct the yarn from the packages on the lower support 33 which may be arranged for transfer unwinding.
  • the upper supports 3 carry guiding rotors 4
  • the packages on the lower support 23 and the associated guide 22a are offset longitudinally of the machine from the twisting'unit which comprises a balloonins guide 20a for leading the outer strand thereto from the roller 4
  • the doubled yarns proceed from the rollers 28 carried by the spindle 2 about a pair of canted rolls 4!, which are rotatably mounted in a fixed position on a lever arm 48 in turn pivotally mounted at 41 on upright 22.
  • Arm 4' also carries a gear 48, which is driven by gear 49 carried by a driving shaft I, the gear 42 serving to drive at least one of the rolls 45 at controlled speed.
  • a traverse-guide 5i controls the lay of the yarns upon the take-up 52, which may be driven by means of the cylinder I2 making peripheral contact therewith.
  • a manual stop and start lever 84 is provided and is linked to the lever 55, which is fixedly ,secured to levers 48 and 58, such threearmed lever unit being pivotally mounted at 41 as that lever 55 controls the pivotal motion of lever 46 and lever 58. Lever it carries a belttensioning pulley 51 and a brake 58.
  • Lever 54 also carries a pin 59, co-operating with the clutch-shifting member ill for connecting the shaft 6
  • Lever 54 extends at an angle from its pivotal connection with lever 55, so that its direction makes a small angle with the plane of the drawing,
  • the operator gives the handle of the lever I4 a motion comprising a component longitudinally of the machine to disengage the clutch 6B and transverse of the machine toward the center thereof to rotate levers Ii, 56 and 46 as a unit in a clockwise direction, thereby releasing the tension of pulley 51 against belt is, applying brake II to the pulley 4 and disengaging gear 48 from gear as.
  • the spring 62 plus the yarn tension maintains the parts in driving relationship. If either strand breaks the yarn tension is reduced. Rolls 4I then drop and stop the machine automatically by the sequence above.
  • the means for con- A guide rail 40 is Protrolling the feed of the yarns at the same speed to the doubling position is shown below the hollow spindle.
  • feed-controlling means can be placed at any position of the spindle after the yarn from the outer package has entered the hollow spindle.
  • the hollow spindle may be given a, somewhat longer extension between the bearing 3 and the fiyer, so that there would be room for the rolls to be mounted below the opening i9 therein.
  • the feed-control means is arranged in the open beyond the lower end of the hollow spindle, where it is most accessible for lacing up, and does not require a cutting away of the spindle.
  • the same twisting system may be employed by supporting a third package between the guide 20 and the inside package within the shroud i l
  • Such intermediate package would be supported on an extension of guide tube I3 (see modified tube i3a of Figure and the yarn proceeding from it would pass down through tube i3a, and enter the end of spindle 2.
  • the yarn from the lower package on the spindle would then pass up through a guide tube 13 with tension device 14 at the top of removable hood l2. It would then balloon about both packages and enter spindle 2 at hole Hi.
  • the yarn coming from the outer package such as that carried on the support 24 would be ballooned around both of the other packages at the same speed as the ballooning of the yarn from the package on the spindle and then all three yarns would be assembled in the hollow spindle 2 in advance of the rolls 26.
  • the system of the present invention is particularly applicable for the production of plied constructions by a method involving first the winding of two yarns or other strands side by side in a common package without intertwisting, upon a suitable core, such as a bobbin, cone, or drum, and then mountin the resulting two-strand package upon the spindle of the present invention, as illustrated in Figure 6.
  • a suitable core such as a bobbin, cone, or drum
  • the construction is substantially the same as in Figure 1, except that a yarn guiding tube 13 and a fixed tension device 14 are provided at the top of the removable hood l2b for a second strand which is led thereby out at the top and balloons down to the flyer i8 entering the hollow spindle 2 at hole i9.
  • the first strand passes down tubular guide i 3 as before.
  • a third strand (as shown diagrammatically in Figure 7) may then be led through guide 20 and ballooned about the package to the other end of flyer I8 and enter the spindle from the side opposite the point of entry of the second strand. After the three strands reach a common path within the passage of the hollow spindle 2 they proceed about the feeding rolls 26 carried on arm 25 secured for rotation with the spindle.
  • both yarns from the common package are used at the same rate, the utilization of the two-strand package is accompanied by excellent results, no difliculty being encountered by difierence in speeds of unwinding of the strands from the package.
  • the difference in lengths of the paths followed by the two strands can be compensated for during the initial lacing up of the system, so that the outer strand has an 6 additional length to provide the ballooning.
  • the two ballooning strands cannot interfere with each other since they travel at the same speed and are held apart by flyer l8.
  • doubling is intended to include the plying, folding, intertwisting, or twisting together of two or more than two individual strands and it isnot intended to be restricted to the twisting together of two strands.
  • the method of producing a plied strand construction comprising the steps of winding two strands side by side on a core, guiding one of the strands from the package longitudinally through a path, guiding the other strand through a loop about the package and then along the path of the first strand, directing the strands longitudinally through the common portion of said path substantially at the same speed to an intertwisting position and simultaneously rotating the strands in advance of the intertwisting position about a common axis.
  • the method of producing a plied strand construction comprising the steps of winding two strands side by side on a hollow core, guiding one of the strands from the package through the hollow core and then longitudinally through a path, guiding the other strand through a loop about the package and then along the path of the first strand, directing the strands longitudinally through the common portion of said path substantially at the same speed to an intertwisting position and simultaneously rotating the strands in advance of the intertwisting position about a common axis.
  • the method of producing a plied strand construction comprising the steps of winding two strands side by side on a hollow core, guiding one of the strands from the package through the hollow core and then longitudinally through a path, guiding the other strand through a loop about the package and then along the path of, the first strand, guiding a third strand through a loop about the package and then along the adjacent paths of the first two strands, directing the strands longitudinally through the common portion of said path substantially at the same speed to an intertwisting position and simultaneously rotating the strands in advance of the intertwisting position about a common axis.
  • the method of producing a plied strand construction comprising the steps of winding each ofa plurality of strands to form a separate package, disposing two of the packages in proximity to each other, guiding the strand from one of the two packages longitudinally through the other of the two packages and then through a path beyond the latter package, guiding the strand from the latter package through a loop around the former package, then back through a loop around both packages and then along the path of the first strand, directing the strands through the common portion of said path substantially at the same speed to an intertwisting position and simultaneously rotating the strands in advance of the intertwisting position generally about a common axis.
  • the method of producing a plied strand construction comprising the steps of winding each of a plurality of strands to form a separate longitudinallypackage, disposing two of the packages in proximlty to each other, guiding the strand from one of the two packages longitudinally through the other 01' the two packages and then through a path beyond the latter package, guiding the strand from the latter package through a loop around the former package, then back through a loop around both packages and then along the path of the first strand, guiding a strand from a third package through a loop about the first two packages and then along the path common to the first two strands, directing the strands longitudinally through said path substantially at the same speed to an intertwisting position and simultaneously rotating the strands in advance of the intertwisting position generally about a common axis.
  • Apparatus for doubling together a plurality of strands to form a plied construction comprising supply means for a plurality oi strands, a hollow spindle, means for rotating the spindle, a carrier for supporting the supply means for at least one strand on the spindle, means for preventing rotation of the carrier during rotation of the spindle, a flyer secured to the spindle for rotating at least one other strand in a loop about the supply means carried on the spindle, and idler roller means carried by the spindle for rotation therewith for maintaining the feed of the strands from the supply means on the carrier and from the loop thereabout longitudinally to the doubling position substantially at the same speed, each idler roll of said idler roll means being arranged to receive all of the strands in substantially non-slipping, tractive engagement about at least a portion of its peripheral surface.
  • Apparatus for doubling together a plurality of strands to form a plied construction comprising supply means for a plurality of strands, a hollow spindle, means for rotating the spindle, a carrier for supporting the supply means for at least one strand on the spindle, means for preventing rotation of the carrier during rotation of the spindle, a fiyer secured to the spindle for rotating at least one other strand in a loop about the supply means carried on the spindle, and at least one idler roll rotatably mounted on an axis transversely of the axis of the spindle carried by the spindle for bodily rotation therewith and arranged to receive the strands about its peripheral surface in substantially non-slipping, tractive engagement for maintaining the feed of the strands from the supply means on the spindle and from the loop thereabout longitudinally to the doubling position substantially at the same speed.
  • Apparatus for doubling together a plurality of strands to form a plied construction comprising supply means for a plurality of strands, means for guiding the strands to a doubling position, means for rotating the strands about their axes without doubling them in advance of the doubling position, and means for maintaining the feed of the strands at substantially the same speed to the doubling position comprising at least one rotatable idler roll arranged to receive all the strands and about the peripheral surfacegof which the strands pass substantially in nonslipping, tractive engagement, said feed-maintaining means being arranged to be rotated bodily about the axis of doubling to prevent doubling in advance of the doubling position, said idler roll being supported at one end only and having its other end unobstructed to facilitate lacing up.
  • Apparatus for doubling together a plurality of strands .to form a plied construction comprising supply means for a plurality of strands, means for guiding the strands to a doubling position, means for rotating the strands about their axes without doubling them in advance of the doubling position, and means for maintaining the feed of the strands at substantially the same speed to the doubling position comprising a plurality of rotatable idler rolls each being arranged to receive all of the strands, the several rolls being so positionally disposed with respect to each otherv as to assure substantially nonslipping, tractive engagement of the strands on at least one of the rolls, said feed-maintaining means being arranged to be rotated bodily about the axis of doubling to prevent doubling in advance of the doubling position, said rotatable elements being supported at one and only and having their other ends unobstructed to facilitate lacing up.
  • Apparatus for doubling together a plurality of strands to form a plied construction comprising supply means for a plurality of strands, a hollow spindle, means for rotating the spindle, a carrier for supporting supply means for at least one strand on the spindle, means for preventing rotation of the carrier during rotation of the spindle, a flyer secured to the spindle for rotating at least one other strand in a loop about the supply means carried on the spindle, an arm secured to the spindle, and a plurality of idler rolls rotatably mounted ,on the arm on axes transverse that of the spindle for maintaining the feed of the strands longitudinally to the doubling position substantially at the same speed.
  • Apparatus for twisting together a plurality of strands to form a plied construction comprising a plurality of supply packages, means for guiding a strand from one of the packages longitudinally through a path, means for guiding a strand from a second package in a loop about the first package and back in a loop about the first and second packages approximately to the path of the first strand, means beyond the path juncture for maintaining the feed of the strands longitudinally substantially at the same speed to a plying position and for simultaneously rotatin the strands in advance of the plying position so as to put in a twist opposite to the ply twist, said feed-maintaining and strand-rotating means comprising at least one rotatable idler roll about the peripheral surface of which the strands pass substantiall in non-slipping, tractive engagement.
  • Apparatus for twisting together a plurality of strands to form a plied construction comprising a plurality of supply packages, means for guiding a strand from one or the packages longitudinally through a path, means for guiding a strand from a second package in a loop about the first package and back, in a loop about the first and second packages approximately to the path of the first strand, means for guiding a strand from a third package in a loop about the first two packages approximately to the point of juncture of the first two strands, means beyond the path juncture for maintaining the feed of the strands longitudinally substantially at the same speed to a plying position and for simultaneously rotating the strands in advance of the plying position so as to put in a twist opposite to the ply twist, said feed-maintaining and strand-rotating means comprising at least one rotatable idler roll about the peripheral surface of which the strands pass substantially in non-slipping, tractive engagement.
  • Apparatus for doubling together a plurality of strands to form a plied construction comprising supply means for a plurality of strands, a hollow spindle, means for rotating the spindle, a carrier for supporting the supply means for at least one strand on the spindle, means for preventing rotation of the carrier during rotation of the spindle, a flier secured to the spindle for rotating at least one other strand in a loop about the supply means carried on the spindle, an arm secured to the spindle, and-a, pair of canted idler rolls rotatably mounted on the arm on axes transverse that of the spindle for receiving all of the strands in substantially non-slipping, tractive engagement about each of their peripheral surfaces and for maintaining the feed of the strands longitudinally to the doubling position substantially at the same speed, said rolls being supported on one end only leaving the other end unobstructed to facilitate lacing up.
  • Apparatus for doublin together a plurality of strands to form a plie construction comprising supply means for a plurality of strands, a hollow spindle, means for rotating the spindle, a carrier for supporting the supply means for one strand on the spindle, means for preventing rotation of the carrier during rotation of the spindle, a flier secured to the spindle for rotating at least one other strand in a loop about the supply means carried on the spindle, an arm secured to the spindle, and a plurality of idler rolls rotatably mounted on the arm on axes transverse that of the spindle for maintaining the feed of the strands longitudinally to the doubling position substantially at the same speed, said rolls being supported on one end only leaving the other end unobstructed to facilitate lacing up and each of the rolls being of progressively lesser axial length in the direction of travel of the strands.
  • Apparatus for doubling together a plurality of strands to form a plied construction comprising a plurality of supply packages, means for guiding a strand from one of the packages longitudinally through a path, means for guiding a strand from at least one other package in a loop about the first package approximately to the path of the other strand, means beyond the path juncture for maintaining the feed of the strands longitudinally substantially at the same speed to a doubling position and for simultaneously rotating the strands in advance of the doubling position about a common axis, said feed-maintaining and strand-rotating means comprising at least one rotatable idler roll about the peripheral surface of which the strands pass substantially in non-slipping, tractive engagement.
  • Apparatus for doubling together a plurality of strands to form a plied construction comprising supply means for a plurality of strands, means for guiding one of the strands longitudinally through a path. means for guiding at least one other strand in a loop about the supply means for both strands approximately to the path of the first strand, means beyond the path juncture for maintaining the feed of the strands longitudinally substantially at the same speed to a doubling position and for simultaneously rotating the strands in advance of the doubling position about a common axis, said feed-maintaining and strand-rotating means comprising at least one rotatable idler roll about the peripheral surface of which the strands pass substantially in non-slipping. tractive engagement.
  • Apparatus for doubling together a pluraly of strands to form a plied construction compr ing common supply means for a plurality of strands, means for guiding one of the strands longitudinally through a path, means for guidin a second strand in a loop about the supply means for both strands approximately to the path of the first strand, means for guiding a third strand from a more remote package in a loop about the common supply means of the first two strands to the point of juncture of said strands, means beyond the path juncture for maintaining the feed of the strands longitudinally substantially at the same speed to a doubling position and for simultaneously rotating the strands in advance of the doubling position about a common axis, said feed-maintaining and strand-rotating means comprising at least one rotatable idler roll about the peripheral surface of which the strands pass substantially in non-slipping, tractive engagement.
  • Apparatus for doubling together a pluraliity of strands to form a plied construction comprising a. plurality of strand supply packages, a hollow spindle, means for rotating the spindle, a carrier for supporting one of the packages on the spindle, means for preventing rotation of the carrier during rotation of the spindle, a fiyer secured to the spindle for rotating at least one other strand from another package in a loop about that carried on the spindle, and at least one idler roll rotatably mounted on an axis transversely of the axis of the spindle carried by the spindle for bodily rotation therewith and arranged to receive the strands about its peripheral surface in substantially non-slipping,
  • tractive engagement for maintaining the feed of the strands from the package on the spindle and from the loop thereabout longitudinally to the doubling position substantially at the same speed.
  • Apparatus for doubling together a, plural ity of strands to form a plied construction comprising a plurality of strand supply packages, means for guiding the strands to a doubling position, means for rotating the strands about their axes without doubling them in advance of the doubling position, and means for maintaining the feed of the strands at substantially the same speed to the doubling position comprising at least one rotatable idler roll arranged to receive all the strands and about the peripheral surface- 20.
  • Apparatus for doubling together a plurality of strands to form a plied construction comprising a plurality of strand supply packages, a hollow spindle, means for rotating the spindle, a carrier for supporting at least one of the packages on the spindle, means for preventing rota: tion of the carrier during rotation of the spindle, a fiyer secured to the spindle for rotating at least one other strand from another package in a, loop about such packages as are carried on the spindle, *an arm secured to the spindle, and a plurality of idler rolls rotatably mounted on the arm on axes transverse that of the spindle for receiving all of the strands in substantially nonslipping, tractive engagement about each of their peripheral surfaces and for maintaining the feed of the strands longitudinally to th'e doubling position substantially at the same speed.
  • Apparatus for doubling together a plurality of strands to form a plied construction comprising a plurality ofstrand supply packages, a hollow spindle, means for rotating the spindle, a carrier for supporting at least one of the'packages on the spindle, means for preventing rotation of the carrier during rotation of thespindle, a fiyer secured to the spindle for rotating at least one other-strand from another package in a loop about such packages as are carried on the spindle, an arm secured to the spindle, and a pair of canted idler rolls rotatably mounted on the arm on axes transverse that of the spindle for receiving all of the strands in substantially non-slipping, tractive engagement about each of their peripheral surfaces and for maintaining the feed of the strands longitudinally to the doubling position substantially at the same speed, said rolls being supported on one end only leaving the other end unobstructed to facilitate lacing up.
  • Apparatus for doubling together a plurality of strands to form a plied construction comprising a plurality of strand supply packages.
  • a hollow spindle means for rotating the spindle, a carrier for supporting at least one of the packages on the spindle, means for preventing rotation of the carrier during rotation of the spindle, a flyer secured to the spindle for rotating at least one other strand from another package in a loop about such packages as are carried on the spindie, an arm secured to the spindle, and a plurality of idler rolls rotatably mounted on the arm on axes transverse that of the spindle for maintaining the feed of the strands longitudinally to the doubling position substantially at the same speed, said rolls being supported on one end only leaving the other end unobstructed to facilitate lacing up and eachof the rolls being of progressively lesser axial length in the direction of travel of the strands.
  • Apparatus for doubling together a plurality of strands to form a plied construction comprising supply means for a plurality of strands, means for guiding one of the strands longitudinally through a path, rotatable means for guiding at least one other strand in a loop about the supply means for the first strand to the path of the first strand, idler roll means rotatable as a unit about the same axis as the rotatable guiding means and disposed, with the axis of each roll thereof extending generally transversely of the first-mentioned axis of rotation beyond the path juncture for maintaining the feed of the strands longitudinally substantially at the same speed to a doubling position beyond the feedmaintaining means and for simultaneously rotating the strands in advance of-the doublin position about a common axis, each'idler roll of said idler roll means being arranged to receive all of the strands in substantially non-slipping,
  • Apparatus for doubling together a plurality of strands to form a plied construction com- J take-up means rotatable means for guiding at 12 prising supply means for a pl r li y of strands, take-up means, means for guiding one of the strands longitudinally through a path to the least one other strand in a loop about the supply means for the first strand and then along the path of the first strand to the take-up means.
  • idler roll means rotatable as a unit about the same axis as.
  • each idler roll of said idler roll means being arranged to receive all or the strands in substantially non-slipping, tractive engagement about at least a portion of its peripheral surface, and means for rotating the guiding means and idler roll means about their common axis at the same speed of rotation.
  • Apparatus for doubling together a plurality of strands to form a plied construction comprising supply means for a plurality of strands, means for guiding one 01 the strands longitudinally through a path, rotatable means for guiding at least one other strand in a loop about the supply means for the first strand to the path of the first strand, idler roll means rotatable as a unit about the same axis as the rotatable guiding means and disposed, with the axis of each roll thereof extending generall transversely of the first-mentioned axis of rotation, beyond the path juncture for maintaining the feed of the strands longitudinally substantially at the same speed to a doubling position and for simultaneously rotating the strands in advance of the doubling position about a common axis, said feedmaintaining and strand-rotating means comprising at least one rotatable element about the peripheral surface of which the strands pass substantially in non-slipping, tractive engagement, and means for rotating

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  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Description

June 8, 1948. s. c. NELSON ,ME'I'HOD AND APPARATUS FOR FLYING STRANDS 2 Sheets-Shani 1 Filed March 1, 1945 INVENTOR. M, 6 BY June 8, 1948. s c, NELSON 2,442,775
METHOD AND APPARATUS FOR FLYING STRANDS Filed March 1, 1945 2 Sheets-Sheet 2 Patented June 8, 1948 2,442,175 METHOD AND mm TUS FOB FLYING STRAND-S Seddon C. Nelsom Front Royal, Va assignor to Ameri can Viscose Corporation, Wilmington,
Del, a corporatlon oi Delaware Application March 1, 1945, Serial No. 580,409 25 Claims. ((31. 57-58) gether into the form of a plied or doubled construction.
It has heretofore been suggested to twist together two or more yarns or other strands by causing one strand to be rotated about the supply package for the other strand, and after thus being ballooned around the package, the outer strand is joined with the strand from the inner package to form 'a wrapped or doubled yarn. In forming wrapped yarns, it is merely necessary to see that a different tension is applied to each of the yarns associated by the twisting system. However, in forming doubled or folded yarns of symmetrical construction, it has been necessary heretofore that the tension in each yarn 'be made substantially the same. For this purpose, it had already been suggested to provide such a system with a tension equalizer whereby an increase in tension in one of the yarns actuates the equalizing device to modify the tension of both yarns to restore them to substantially equal tensions. However, all such systems heretofore proposed have the disadvantages of being difilcult to lace up when starting up the system, and frequently of exerting severe rubbing and frictional efiects upon the yarns.
According to the present invention, the necessity to have each yarn under the same tension is avoided by providing a common yarn-feed control means comprising at least one rotatable idler roll about the peripheral surface of which thestrands pass in non-slipping tractive engagement for directing or maintaining the feed of both or all of the yarns to the doubling point at substantially the same speed. A further object of the invention is to provide sucha feed control arrangement of a construction adapted for rapid and easy lacing. Further objects and advantages will be apparent from the drawing to which reference is made hereinafter.
In the drawing illustrative of the invention,
Figure 1 shows in vertical elevation, partially in cross section, one embodiment of the invention;
Figure 2 is an end elevation, partially in section, showing a modification in a multiple end or multiple station machine;
Figure 3 is a detail view;
Figure 4 is a view similar to Figure 3, of amodification of the yarn-feeding means;
Figure 5 shows a modification forplying more than two strands.
strands proceeding from a single package in which they are woundside by side, and
Figure 7 shows diagrammatically a modification of Figure 6.
As shown in Figures 1 and 3, the doubling system of the present invention comprises a ho!- low twisting spindle 2 rotatably mounted in a support 3 and suitably driven preferably at substantially constant speed, such as by the pulley 4, belt 5 and motor 6. The hollow spindle 2 is mounted at an angle inclined to the vertical and at its upper end is provided with an anti-friction bearing for rotatably supporting a package carrier comprising a tapered member 1 adapted to fit inside the package which may in this instance be wound on the conical core 8, and an annular base 9 which may be weighted at ill to prevent rotation of the package carrier during rotation of the spindle 2-. Advantageously a shroud l l and removable hood l2 may be provided to prevent interference between the yarns and too rapid unwinding of the yarn from the package therein caused by air currents set up by the ballooning yarn. A hollow guide i3 fits within the open end of the form I and is arranged in alignment with the hollow spindle 2. This guide I3 is hollow and is recessed at It to permit the insertion of a spring tension element IS. The tension element I5 is held in place about the tubular guide l3 by means of a ring it. An additional ring ll may be moved back and forth to adjust the pressure of the spring element I5 against the portion of the guide i3 not cut away adjacent H.
A flyer I8 is secured to the spindle 2 between the package carrier and the support 3, and the hollow spindle is provided with an opening 19 adjacent the flyer. Aballoon-controlling guide 20 is mounted on an arm 2i hinged to an extension 3a of the supporting structure. A tension device 22, and a pulley guide 23 are arranged to guide yarn from an outer package carried on a support 24.
There is secured to the lower end of the hollow spindle 2-, an arm 25 carrying two canted idler rolls 26. The axesof these rolls extend across the axis of the spindle, so that the yarns proceed side by side out of the hollow spindle substantially parallel to eachother and in substantially nonslipping tractiveengagement about the two rolls as a unit, the canted arrangement of the rolls assuring lateral displacement of the yarns to prevent rubbing contact with their courses passing directly to the rolls as would occur if the rolls 26 were mounted on parallel axes or a single Figure 6 shows a modification for doubling ll idler roll were used. A take-up device 21 with a loop or balloon to the flyer II, the opening ll of the spindle 2 and through the hollow spindle to the rolls 26. At the same time, the yarn from the inner package proceeds through the guide l3 and then is guided longitudinally through a path extending through the tension device ll through the spindle 2 to the rolls 2.. The shroud II and hood l2 prevent interference between the yarns from the difi'erent packages. After the outer yarn enters the hollow spindle 2, it can be said to join the path of the inner yarn (for purposes of definition herein, this path is considered to be the hollow bore within the spindle 2) and the two would be to have the same tension exerted upon each of the yarns, the use of the feeding means of the present invention allows considerable difference to be present in such tensions without such difference producing a noticeable eifect upon the final doubled structure.
Referring to Figure 2, a modification is shown adapting the twister to a compact, eiiicient and convenient arrangement in a multiple-unit machine. As shown, the machine comprises a framework having central uprights 32 carrying a lower supporting platform 24 and upper supports 2|. Such supports are carried on each side of the center of the machin as viewed endwise in Pigvure 2, and only the details of one side are shown in full and described hereinafter. A rail 28 having a plurality of supporting bearings 21, one for arns proceed substantially in the same general path side by side to the rolls 2. and about the rolls without being twistedtogether. Since the spindle 2 rotates with rolls 2! about the axis of the spindle, the idler roll assembly rotates as a unit about this axis and at the same speed as the spindle and the fiyer carried'thereby and doubling occurs approximately at thepoint where the two yarns leave the rolls 2. to proceed to the I take-up 21. While the two yarns are not twisted together until they are about to leave the rolls 2'. they are twisted about their individual axes in a direction opposite to the doubling or cabling twists of the plied yarns. Thus. if the spindle 2 is rotated in a clockwise direction as viewed from above, Z-twist is put into the individual yarns before they reach the rolls 2!, but s-twist is present in the doubled structure. the combination of such twists in the final structure resulting in the lay of the fibers or filaments in the final structure being substantially parallel to the axis of the structure. Obviously, byrotatingthe spindle in the opposite direction. the final cord will have the opposite or Z-twist, The number of twists per inch in thefinal cord structure can be controlled by predetermining the relation between the speed of rotation of the spindle with respect to the speed of the take-up.
Figure 4 shows a modification of the yarnfeed control rolls in accordance with which two or more rolls 26a rotatably mounted 'on parallel axes arranged across the extended axis of the spindle 2 are carried by the arm 25. Three are actually shown in alignment so that the yarns proceed from the hollow spindle side by side in a sinuous path about each of the rolls in succession. Preferably the rolls, as in Figure 3. are open at one end and by thus being free of obstruction are readily laced. In addition, where a multiplicity of rolls are used as in Figure 4, each roll may have a shorter axial length than that of its immediate predecessor, which again facilitates lacing. The axes of the several mils of Figure 4 may also be offset to increase the arc of contact with the yarns thereabout to assure non-slipping contact. The rolls 2! or 24a may be provided with grooves for receiving the yarn but this is not essential or preferred.
By using the yam-controlling arrangement for directing them at the same speed to the doubling point, it is not essential that the tensions in the yarns as they proceed through the twisting device be the same. While the ideal situation each hollow spindle 2 of each unit, extends the length of the machine above the intermediate platform 24. The pulleys 4 of the units are driven by a belt is operating in connection with the pulley 28 on the driving shaft It running the length of the machine. vided to direct the yarn from the packages on the lower support 33 which may be arranged for transfer unwinding. The upper supports 3 carry guiding rotors 4|,theresistance to rotation of which may be controlled by adjusting the finger screw 42 which varies the pressure of a drag block 42 against a disc 44 fixed to the shaft to which the roller 4| is secured. The packages on the lower support 23 and the associated guide 22a are offset longitudinally of the machine from the twisting'unit which comprises a balloonins guide 20a for leading the outer strand thereto from the roller 4| which is directly over guide 20a. The doubled yarns proceed from the rollers 28 carried by the spindle 2 about a pair of canted rolls 4!, which are rotatably mounted in a fixed position on a lever arm 48 in turn pivotally mounted at 41 on upright 22. Arm 4' also carries a gear 48, which is driven by gear 49 carried by a driving shaft I, the gear 42 serving to drive at least one of the rolls 45 at controlled speed. A traverse-guide 5i controls the lay of the yarns upon the take-up 52, which may be driven by means of the cylinder I2 making peripheral contact therewith. A manual stop and start lever 84 is provided and is linked to the lever 55, which is fixedly ,secured to levers 48 and 58, such threearmed lever unit being pivotally mounted at 41 as that lever 55 controls the pivotal motion of lever 46 and lever 58. Lever it carries a belttensioning pulley 51 and a brake 58. Lever 54 also carries a pin 59, co-operating with the clutch-shifting member ill for connecting the shaft 6| with the take-up driving cylinder II. Lever 54 extends at an angle from its pivotal connection with lever 55, so that its direction makes a small angle with the plane of the drawing, In order to stop the machine. the operator gives the handle of the lever I4 a motion comprising a component longitudinally of the machine to disengage the clutch 6B and transverse of the machine toward the center thereof to rotate levers Ii, 56 and 46 as a unit in a clockwise direction, thereby releasing the tension of pulley 51 against belt is, applying brake II to the pulley 4 and disengaging gear 48 from gear as. The spring 62 plus the yarn tension maintains the parts in driving relationship. If either strand breaks the yarn tension is reduced. Rolls 4I then drop and stop the machine automatically by the sequence above.
In the embodiments shown, the means for con- A guide rail 40 is Protrolling the feed of the yarns at the same speed to the doubling position is shown below the hollow spindle. It is to be understood, however, that such feed-controlling means can be placed at any position of the spindle after the yarn from the outer package has entered the hollow spindle. Thus, in Figure 1, the hollow spindle may be given a, somewhat longer extension between the bearing 3 and the fiyer, so that there would be room for the rolls to be mounted below the opening i9 therein. Such an embodiment necessitates the cutting away of a part of the hollow spindle, however, and to this extent would be disadvantageous. Preferably, the feed-control means is arranged in the open beyond the lower end of the hollow spindle, where it is most accessible for lacing up, and does not require a cutting away of the spindle.
While the invention has been disclosed with respect to the doubling together of two yarns, it is applicable as well to the doubling together of more than two yarns. For example, the same twisting system may be employed by supporting a third package between the guide 20 and the inside package within the shroud i l Such intermediate package would be supported on an extension of guide tube I3 (see modified tube i3a of Figure and the yarn proceeding from it would pass down through tube i3a, and enter the end of spindle 2. The yarn from the lower package on the spindle would then pass up through a guide tube 13 with tension device 14 at the top of removable hood l2. It would then balloon about both packages and enter spindle 2 at hole Hi. The yarn coming from the outer package such as that carried on the support 24 would be ballooned around both of the other packages at the same speed as the ballooning of the yarn from the package on the spindle and then all three yarns would be assembled in the hollow spindle 2 in advance of the rolls 26.
The system of the present invention is particularly applicable for the production of plied constructions by a method involving first the winding of two yarns or other strands side by side in a common package without intertwisting, upon a suitable core, such as a bobbin, cone, or drum, and then mountin the resulting two-strand package upon the spindle of the present invention, as illustrated in Figure 6. As there shown,
the construction is substantially the same as in Figure 1, except that a yarn guiding tube 13 and a fixed tension device 14 are provided at the top of the removable hood l2b for a second strand which is led thereby out at the top and balloons down to the flyer i8 entering the hollow spindle 2 at hole i9. The first strand passes down tubular guide i 3 as before. A third strand (as shown diagrammatically in Figure 7) may then be led through guide 20 and ballooned about the package to the other end of flyer I8 and enter the spindle from the side opposite the point of entry of the second strand. After the three strands reach a common path within the passage of the hollow spindle 2 they proceed about the feeding rolls 26 carried on arm 25 secured for rotation with the spindle. Since both yarns from the common package are used at the same rate, the utilization of the two-strand package is accompanied by excellent results, no difliculty being encountered by difierence in speeds of unwinding of the strands from the package. The difference in lengths of the paths followed by the two strands can be compensated for during the initial lacing up of the system, so that the outer strand has an 6 additional length to provide the ballooning. The two ballooning strands cannot interfere with each other since they travel at the same speed and are held apart by flyer l8.
In the specification and claims, the term "doubling is intended to include the plying, folding, intertwisting, or twisting together of two or more than two individual strands and it isnot intended to be restricted to the twisting together of two strands.
It is tobe understood that changes and variations may be made without departing from the spirit and scope of the invention, as defined by the appended claims.
I claim:
1. The method of producing a plied strand construction comprising the steps of winding two strands side by side on a core, guiding one of the strands from the package longitudinally through a path, guiding the other strand through a loop about the package and then along the path of the first strand, directing the strands longitudinally through the common portion of said path substantially at the same speed to an intertwisting position and simultaneously rotating the strands in advance of the intertwisting position about a common axis.
2. The method of producing a plied strand construction comprising the steps of winding two strands side by side on a hollow core, guiding one of the strands from the package through the hollow core and then longitudinally through a path, guiding the other strand through a loop about the package and then along the path of the first strand, directing the strands longitudinally through the common portion of said path substantially at the same speed to an intertwisting position and simultaneously rotating the strands in advance of the intertwisting position about a common axis.
3. The method of producing a plied strand construction comprising the steps of winding two strands side by side on a hollow core, guiding one of the strands from the package through the hollow core and then longitudinally through a path, guiding the other strand through a loop about the package and then along the path of, the first strand, guiding a third strand through a loop about the package and then along the adjacent paths of the first two strands, directing the strands longitudinally through the common portion of said path substantially at the same speed to an intertwisting position and simultaneously rotating the strands in advance of the intertwisting position about a common axis.
4. The method of producing a plied strand construction comprising the steps of winding each ofa plurality of strands to form a separate package, disposing two of the packages in proximity to each other, guiding the strand from one of the two packages longitudinally through the other of the two packages and then through a path beyond the latter package, guiding the strand from the latter package through a loop around the former package, then back through a loop around both packages and then along the path of the first strand, directing the strands through the common portion of said path substantially at the same speed to an intertwisting position and simultaneously rotating the strands in advance of the intertwisting position generally about a common axis.
5. The method of producing a plied strand construction comprising the steps of winding each of a plurality of strands to form a separate longitudinallypackage, disposing two of the packages in proximlty to each other, guiding the strand from one of the two packages longitudinally through the other 01' the two packages and then through a path beyond the latter package, guiding the strand from the latter package through a loop around the former package, then back through a loop around both packages and then along the path of the first strand, guiding a strand from a third package through a loop about the first two packages and then along the path common to the first two strands, directing the strands longitudinally through said path substantially at the same speed to an intertwisting position and simultaneously rotating the strands in advance of the intertwisting position generally about a common axis.
6. Apparatus for doubling together a plurality of strands to form a plied construction comprising supply means for a plurality oi strands, a hollow spindle, means for rotating the spindle, a carrier for supporting the supply means for at least one strand on the spindle, means for preventing rotation of the carrier during rotation of the spindle, a flyer secured to the spindle for rotating at least one other strand in a loop about the supply means carried on the spindle, and idler roller means carried by the spindle for rotation therewith for maintaining the feed of the strands from the supply means on the carrier and from the loop thereabout longitudinally to the doubling position substantially at the same speed, each idler roll of said idler roll means being arranged to receive all of the strands in substantially non-slipping, tractive engagement about at least a portion of its peripheral surface.
7. Apparatus for doubling together a plurality of strands to form a plied construction comprising supply means for a plurality of strands, a hollow spindle, means for rotating the spindle, a carrier for supporting the supply means for at least one strand on the spindle, means for preventing rotation of the carrier during rotation of the spindle, a fiyer secured to the spindle for rotating at least one other strand in a loop about the supply means carried on the spindle, and at least one idler roll rotatably mounted on an axis transversely of the axis of the spindle carried by the spindle for bodily rotation therewith and arranged to receive the strands about its peripheral surface in substantially non-slipping, tractive engagement for maintaining the feed of the strands from the supply means on the spindle and from the loop thereabout longitudinally to the doubling position substantially at the same speed.
8. Apparatus for doubling together a plurality of strands to form a plied construction comprising supply means for a plurality of strands, means for guiding the strands to a doubling position, means for rotating the strands about their axes without doubling them in advance of the doubling position, and means for maintaining the feed of the strands at substantially the same speed to the doubling position comprising at least one rotatable idler roll arranged to receive all the strands and about the peripheral surfacegof which the strands pass substantially in nonslipping, tractive engagement, said feed-maintaining means being arranged to be rotated bodily about the axis of doubling to prevent doubling in advance of the doubling position, said idler roll being supported at one end only and having its other end unobstructed to facilitate lacing up.
9. Apparatus for doubling together a plurality of strands .to form a plied construction comprising supply means for a plurality of strands, means for guiding the strands to a doubling position, means for rotating the strands about their axes without doubling them in advance of the doubling position, and means for maintaining the feed of the strands at substantially the same speed to the doubling position comprising a plurality of rotatable idler rolls each being arranged to receive all of the strands, the several rolls being so positionally disposed with respect to each otherv as to assure substantially nonslipping, tractive engagement of the strands on at least one of the rolls, said feed-maintaining means being arranged to be rotated bodily about the axis of doubling to prevent doubling in advance of the doubling position, said rotatable elements being supported at one and only and having their other ends unobstructed to facilitate lacing up.
10. Apparatus for doubling together a plurality of strands to form a plied construction comprising supply means for a plurality of strands, a hollow spindle, means for rotating the spindle, a carrier for supporting supply means for at least one strand on the spindle, means for preventing rotation of the carrier during rotation of the spindle, a flyer secured to the spindle for rotating at least one other strand in a loop about the supply means carried on the spindle, an arm secured to the spindle, and a plurality of idler rolls rotatably mounted ,on the arm on axes transverse that of the spindle for maintaining the feed of the strands longitudinally to the doubling position substantially at the same speed.
11. Apparatus for twisting together a plurality of strands to form a plied construction comprising a plurality of supply packages, means for guiding a strand from one of the packages longitudinally through a path, means for guiding a strand from a second package in a loop about the first package and back in a loop about the first and second packages approximately to the path of the first strand, means beyond the path juncture for maintaining the feed of the strands longitudinally substantially at the same speed to a plying position and for simultaneously rotatin the strands in advance of the plying position so as to put in a twist opposite to the ply twist, said feed-maintaining and strand-rotating means comprising at least one rotatable idler roll about the peripheral surface of which the strands pass substantiall in non-slipping, tractive engagement.
12. Apparatus for twisting together a plurality of strands to form a plied construction comprising a plurality of supply packages, means for guiding a strand from one or the packages longitudinally through a path, means for guiding a strand from a second package in a loop about the first package and back, in a loop about the first and second packages approximately to the path of the first strand, means for guiding a strand from a third package in a loop about the first two packages approximately to the point of juncture of the first two strands, means beyond the path juncture for maintaining the feed of the strands longitudinally substantially at the same speed to a plying position and for simultaneously rotating the strands in advance of the plying position so as to put in a twist opposite to the ply twist, said feed-maintaining and strand-rotating means comprising at least one rotatable idler roll about the peripheral surface of which the strands pass substantially in non-slipping, tractive engagement. 7
13. Apparatus for doubling together a plurality of strands to form a plied construction comprising supply means for a plurality of strands, a hollow spindle, means for rotating the spindle, a carrier for supporting the supply means for at least one strand on the spindle, means for preventing rotation of the carrier during rotation of the spindle, a flier secured to the spindle for rotating at least one other strand in a loop about the supply means carried on the spindle, an arm secured to the spindle, and-a, pair of canted idler rolls rotatably mounted on the arm on axes transverse that of the spindle for receiving all of the strands in substantially non-slipping, tractive engagement about each of their peripheral surfaces and for maintaining the feed of the strands longitudinally to the doubling position substantially at the same speed, said rolls being supported on one end only leaving the other end unobstructed to facilitate lacing up.
14. Apparatus for doublin together a plurality of strands to form a plie construction comprising supply means for a plurality of strands, a hollow spindle, means for rotating the spindle, a carrier for supporting the supply means for one strand on the spindle, means for preventing rotation of the carrier during rotation of the spindle, a flier secured to the spindle for rotating at least one other strand in a loop about the supply means carried on the spindle, an arm secured to the spindle, and a plurality of idler rolls rotatably mounted on the arm on axes transverse that of the spindle for maintaining the feed of the strands longitudinally to the doubling position substantially at the same speed, said rolls being supported on one end only leaving the other end unobstructed to facilitate lacing up and each of the rolls being of progressively lesser axial length in the direction of travel of the strands.
15. Apparatus for doubling together a plurality of strands to form a plied construction comprising a plurality of supply packages, means for guiding a strand from one of the packages longitudinally through a path, means for guiding a strand from at least one other package in a loop about the first package approximately to the path of the other strand, means beyond the path juncture for maintaining the feed of the strands longitudinally substantially at the same speed to a doubling position and for simultaneously rotating the strands in advance of the doubling position about a common axis, said feed-maintaining and strand-rotating means comprising at least one rotatable idler roll about the peripheral surface of which the strands pass substantially in non-slipping, tractive engagement.
16. Apparatus for doubling together a plurality of strands to form a plied construction comprising supply means for a plurality of strands, means for guiding one of the strands longitudinally through a path. means for guiding at least one other strand in a loop about the supply means for both strands approximately to the path of the first strand, means beyond the path juncture for maintaining the feed of the strands longitudinally substantially at the same speed to a doubling position and for simultaneously rotating the strands in advance of the doubling position about a common axis, said feed-maintaining and strand-rotating means comprising at least one rotatable idler roll about the peripheral surface of which the strands pass substantially in non-slipping. tractive engagement.
17. Apparatus for doubling together a pluraly of strands to form a plied construction compr ing common supply means for a plurality of strands, means for guiding one of the strands longitudinally through a path, means for guidin a second strand in a loop about the supply means for both strands approximately to the path of the first strand, means for guiding a third strand from a more remote package in a loop about the common supply means of the first two strands to the point of juncture of said strands, means beyond the path juncture for maintaining the feed of the strands longitudinally substantially at the same speed to a doubling position and for simultaneously rotating the strands in advance of the doubling position about a common axis, said feed-maintaining and strand-rotating means comprising at least one rotatable idler roll about the peripheral surface of which the strands pass substantially in non-slipping, tractive engagement.
18. Apparatus for doubling together a pluraliity of strands to form a plied construction comprising a. plurality of strand supply packages, a hollow spindle, means for rotating the spindle, a carrier for supporting one of the packages on the spindle, means for preventing rotation of the carrier during rotation of the spindle, a fiyer secured to the spindle for rotating at least one other strand from another package in a loop about that carried on the spindle, and at least one idler roll rotatably mounted on an axis transversely of the axis of the spindle carried by the spindle for bodily rotation therewith and arranged to receive the strands about its peripheral surface in substantially non-slipping,
tractive engagement for maintaining the feed of the strands from the package on the spindle and from the loop thereabout longitudinally to the doubling position substantially at the same speed.
19. Apparatus for doubling together a, plural ity of strands to form a plied construction comprising a plurality of strand supply packages, means for guiding the strands to a doubling position, means for rotating the strands about their axes without doubling them in advance of the doubling position, and means for maintaining the feed of the strands at substantially the same speed to the doubling position comprising at least one rotatable idler roll arranged to receive all the strands and about the peripheral surface- 20. Apparatus for doubling together a plurality of strands to form a plied construction comprising a plurality of strand supply packages, a hollow spindle, means for rotating the spindle, a carrier for supporting at least one of the packages on the spindle, means for preventing rota: tion of the carrier during rotation of the spindle, a fiyer secured to the spindle for rotating at least one other strand from another package in a, loop about such packages as are carried on the spindle, *an arm secured to the spindle, and a plurality of idler rolls rotatably mounted on the arm on axes transverse that of the spindle for receiving all of the strands in substantially nonslipping, tractive engagement about each of their peripheral surfaces and for maintaining the feed of the strands longitudinally to th'e doubling position substantially at the same speed.
21. Apparatus for doubling together a plurality of strands to form a plied construction comprising a plurality ofstrand supply packages, a hollow spindle, means for rotating the spindle, a carrier for supporting at least one of the'packages on the spindle, means for preventing rotation of the carrier during rotation of thespindle, a fiyer secured to the spindle for rotating at least one other-strand from another package in a loop about such packages as are carried on the spindle, an arm secured to the spindle, and a pair of canted idler rolls rotatably mounted on the arm on axes transverse that of the spindle for receiving all of the strands in substantially non-slipping, tractive engagement about each of their peripheral surfaces and for maintaining the feed of the strands longitudinally to the doubling position substantially at the same speed, said rolls being supported on one end only leaving the other end unobstructed to facilitate lacing up.
22. Apparatus for doubling together a plurality of strands to form a plied construction comprising a plurality of strand supply packages. a hollow spindle, means for rotating the spindle, a carrier for supporting at least one of the packages on the spindle, means for preventing rotation of the carrier during rotation of the spindle, a flyer secured to the spindle for rotating at least one other strand from another package in a loop about such packages as are carried on the spindie, an arm secured to the spindle, and a plurality of idler rolls rotatably mounted on the arm on axes transverse that of the spindle for maintaining the feed of the strands longitudinally to the doubling position substantially at the same speed, said rolls being supported on one end only leaving the other end unobstructed to facilitate lacing up and eachof the rolls being of progressively lesser axial length in the direction of travel of the strands.
23. Apparatus for doubling together a plurality of strands to form a plied construction comprising supply means for a plurality of strands, means for guiding one of the strands longitudinally through a path, rotatable means for guiding at least one other strand in a loop about the supply means for the first strand to the path of the first strand, idler roll means rotatable as a unit about the same axis as the rotatable guiding means and disposed, with the axis of each roll thereof extending generally transversely of the first-mentioned axis of rotation beyond the path juncture for maintaining the feed of the strands longitudinally substantially at the same speed to a doubling position beyond the feedmaintaining means and for simultaneously rotating the strands in advance of-the doublin position about a common axis, each'idler roll of said idler roll means being arranged to receive all of the strands in substantially non-slipping,
tractive engagement about at least a portion of its peripheral surface, and means for rotating the guiding means and idler roll means about their common axis at the same speed of rotation.
24. Apparatus for doubling together a plurality of strands to form a plied construction com- J take-up means, rotatable means for guiding at 12 prising supply means for a pl r li y of strands, take-up means, means for guiding one of the strands longitudinally through a path to the least one other strand in a loop about the supply means for the first strand and then along the path of the first strand to the take-up means. idler roll means rotatable as a unit about the same axis as. the rotatable guiding means and disposed, with the axis of each roll thereof extending generally transversely of the first-mentioned axis of rotation, in the generally common portion of the path of the strands for maintaining the feed of the strands longitudinally alongside each other substantially at the same speed to a doubling position beyond the feedmaintaining means and in advance of the takeup means and for simultaneously rotating the strands in advance of the doubling position about a'common axis, each idler roll of said idler roll means being arranged to receive all or the strands in substantially non-slipping, tractive engagement about at least a portion of its peripheral surface, and means for rotating the guiding means and idler roll means about their common axis at the same speed of rotation.
25. Apparatus for doubling together a plurality of strands to form a plied construction comprising supply means for a plurality of strands, means for guiding one 01 the strands longitudinally through a path, rotatable means for guiding at least one other strand in a loop about the supply means for the first strand to the path of the first strand, idler roll means rotatable as a unit about the same axis as the rotatable guiding means and disposed, with the axis of each roll thereof extending generall transversely of the first-mentioned axis of rotation, beyond the path juncture for maintaining the feed of the strands longitudinally substantially at the same speed to a doubling position and for simultaneously rotating the strands in advance of the doubling position about a common axis, said feedmaintaining and strand-rotating means comprising at least one rotatable element about the peripheral surface of which the strands pass substantially in non-slipping, tractive engagement, and means for rotating the guiding means and idler roll'means about their common axis at the same speed of rotation.
SEDDON C. NELSON.
REFERENCES CITED The following references are of record in the
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US2732680A (en) * 1953-03-12 1956-01-31 vibber
US2737773A (en) * 1952-07-24 1956-03-13 Us Rubber Co Apparatus for making elastic yarn
US2782590A (en) * 1953-05-14 1957-02-26 American Viscose Corp Yarn twisting method and apparatus
DE960163C (en) * 1952-11-21 1957-03-14 Onderzoekings Inst Res Method for producing a twisted thread, in particular a cord twisted thread from two threads
US2814925A (en) * 1954-08-17 1957-12-03 Alfred W Vibber Twisting and plying spindle balloon control
US2867969A (en) * 1951-11-29 1959-01-13 American Enka Corp Double twister
US2869313A (en) * 1954-11-17 1959-01-20 Alfred W Vibber Method of and apparatus for plying strands
US2913867A (en) * 1953-04-27 1959-11-24 American Enka Corp Method and apparatus for forming cords
DE1074457B (en) * 1953-12-16 1960-01-28 The Deermg Milliken Research Corporation Pendieton S C (V St A) C (V St A) I twisting device especially for making cord, im
US2939267A (en) * 1953-12-16 1960-06-07 Deering Milliken Res Corp Plying
US3017738A (en) * 1952-11-21 1962-01-23 American Enka Corp Method and apparatus for forming cord
US3029587A (en) * 1959-08-21 1962-04-17 Kresslein Albert Method of and a device for doubling yarn on double twist spindles
US3126696A (en) * 1964-03-31 Process and apparatus for containing a folded yarn
US3146573A (en) * 1962-06-29 1964-09-01 American Enka Corp Yarn entwining method and apparatus
US3410079A (en) * 1964-02-17 1968-11-12 Palitex Project Co Gmbh Method of changing spindles in a double twist spindle frame
US3415049A (en) * 1966-06-06 1968-12-10 Palitex Project Co Gmbh Double twist spindle
US3717989A (en) * 1970-04-29 1973-02-27 Palitex Project Co Gmbh Carrier for packages of textile yarn
US4197696A (en) * 1977-06-28 1980-04-15 Schubert & Salzer Method and apparatus for producing a wrap-around yarn
US4565060A (en) * 1983-04-27 1986-01-21 Officine Savio S.P.A. Device to carry out doubling-twisting operations and twisted yarn obtained with said device
US4856267A (en) * 1988-11-25 1989-08-15 Northern Telecom Limited Method and apparatus for twisting together lengths of filamentary material
DE10260121A1 (en) * 2002-12-19 2004-07-01 Temco Textilmaschinenkomponenten Gmbh Cable or double wire twist spindle and rotating device
US10316437B2 (en) * 2016-08-30 2019-06-11 Sangmyung University Seoul Yarn plying apparatus
US10669648B1 (en) * 2017-06-02 2020-06-02 Robert S. Weiner Twist variation

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US723178A (en) * 1897-03-05 1903-03-17 Thomas W Norman Cord or rope making machine.
AT70857B (en) * 1914-05-20 1916-01-10 Maschb Anstalt Humboldt Stranding device with a stationary spool carrier and a surrounding frame.
US1882612A (en) * 1931-06-20 1932-10-11 Harry J Hufford Thread feeding and spacing means
DE573276C (en) * 1933-03-29 Barmer Maschinenfabrik Akt Ges Two-for-one twisting spindle
FR745096A (en) * 1933-05-01
DE594542C (en) * 1934-03-19 Barmer Maschinenfabrik Akt Ges Device for wet twisting, finishing, oiling or sizing of threads for two-for-one twisting spindles
US1964021A (en) * 1930-03-21 1934-06-26 Dunlop Cotton Mills Ltd Twisting and the like machine
US2010888A (en) * 1930-12-24 1935-08-13 Celanese Corp Doubling of yarns, threads, or filaments
US2131893A (en) * 1935-10-26 1938-10-04 Charles C Jessen Process and apparatus for twisting threads
US2319827A (en) * 1941-04-11 1943-05-25 American Steel & Wire Co Means for manufacturing wire rope and the like
US2343535A (en) * 1943-06-09 1944-03-07 Us Rubber Co Mechanism for twisting together a plurality of strands

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Publication number Priority date Publication date Assignee Title
DE573276C (en) * 1933-03-29 Barmer Maschinenfabrik Akt Ges Two-for-one twisting spindle
FR745096A (en) * 1933-05-01
DE594542C (en) * 1934-03-19 Barmer Maschinenfabrik Akt Ges Device for wet twisting, finishing, oiling or sizing of threads for two-for-one twisting spindles
US723178A (en) * 1897-03-05 1903-03-17 Thomas W Norman Cord or rope making machine.
AT70857B (en) * 1914-05-20 1916-01-10 Maschb Anstalt Humboldt Stranding device with a stationary spool carrier and a surrounding frame.
US1964021A (en) * 1930-03-21 1934-06-26 Dunlop Cotton Mills Ltd Twisting and the like machine
US2010888A (en) * 1930-12-24 1935-08-13 Celanese Corp Doubling of yarns, threads, or filaments
US1882612A (en) * 1931-06-20 1932-10-11 Harry J Hufford Thread feeding and spacing means
US2131893A (en) * 1935-10-26 1938-10-04 Charles C Jessen Process and apparatus for twisting threads
US2319827A (en) * 1941-04-11 1943-05-25 American Steel & Wire Co Means for manufacturing wire rope and the like
US2343535A (en) * 1943-06-09 1944-03-07 Us Rubber Co Mechanism for twisting together a plurality of strands

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3126696A (en) * 1964-03-31 Process and apparatus for containing a folded yarn
US2499245A (en) * 1948-04-20 1950-02-28 Nat Standard Co Wire laying machine
US2633692A (en) * 1948-11-17 1953-04-07 William T Maccreadie Wire rope-making machine
DE938411C (en) * 1948-12-18 1956-01-26 Doutors Device for twisting textile threads together
US2671305A (en) * 1949-08-12 1954-03-09 Deering Milliken Res Trust Yarn twisting and tensioning device
US2867969A (en) * 1951-11-29 1959-01-13 American Enka Corp Double twister
US2737773A (en) * 1952-07-24 1956-03-13 Us Rubber Co Apparatus for making elastic yarn
DE960163C (en) * 1952-11-21 1957-03-14 Onderzoekings Inst Res Method for producing a twisted thread, in particular a cord twisted thread from two threads
US3017738A (en) * 1952-11-21 1962-01-23 American Enka Corp Method and apparatus for forming cord
US2732680A (en) * 1953-03-12 1956-01-31 vibber
US2913867A (en) * 1953-04-27 1959-11-24 American Enka Corp Method and apparatus for forming cords
US2782590A (en) * 1953-05-14 1957-02-26 American Viscose Corp Yarn twisting method and apparatus
US2730859A (en) * 1953-05-22 1956-01-17 Dunlop Tire & Rubber Corp Apparatus for plying yarns
US2939267A (en) * 1953-12-16 1960-06-07 Deering Milliken Res Corp Plying
DE1074457B (en) * 1953-12-16 1960-01-28 The Deermg Milliken Research Corporation Pendieton S C (V St A) C (V St A) I twisting device especially for making cord, im
US2814925A (en) * 1954-08-17 1957-12-03 Alfred W Vibber Twisting and plying spindle balloon control
US2869313A (en) * 1954-11-17 1959-01-20 Alfred W Vibber Method of and apparatus for plying strands
US3029587A (en) * 1959-08-21 1962-04-17 Kresslein Albert Method of and a device for doubling yarn on double twist spindles
US3146573A (en) * 1962-06-29 1964-09-01 American Enka Corp Yarn entwining method and apparatus
US3410079A (en) * 1964-02-17 1968-11-12 Palitex Project Co Gmbh Method of changing spindles in a double twist spindle frame
US3415049A (en) * 1966-06-06 1968-12-10 Palitex Project Co Gmbh Double twist spindle
US3717989A (en) * 1970-04-29 1973-02-27 Palitex Project Co Gmbh Carrier for packages of textile yarn
US4197696A (en) * 1977-06-28 1980-04-15 Schubert & Salzer Method and apparatus for producing a wrap-around yarn
US4565060A (en) * 1983-04-27 1986-01-21 Officine Savio S.P.A. Device to carry out doubling-twisting operations and twisted yarn obtained with said device
US4856267A (en) * 1988-11-25 1989-08-15 Northern Telecom Limited Method and apparatus for twisting together lengths of filamentary material
DE10260121A1 (en) * 2002-12-19 2004-07-01 Temco Textilmaschinenkomponenten Gmbh Cable or double wire twist spindle and rotating device
US10316437B2 (en) * 2016-08-30 2019-06-11 Sangmyung University Seoul Yarn plying apparatus
US10669648B1 (en) * 2017-06-02 2020-06-02 Robert S. Weiner Twist variation

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