US752813A - Island - Google Patents

Description

PATENTED FEB. 23, 1904.

's. W. WARDWELL.

YARN CONTROLLER.

APPLIOATION FITED DEC. 5. 1901.

5 SHEETS-SHEET 1.

N0 MODEL.

ATTUHNEYS cc, FHQTU-LIYHO WASNINGTO PATENTED FEB. 23, 1904.

8. W. WARDWELL.

YARN CONTROLLER.

APPLICATION FILED DEC. 5. 1901.

5 SHEETS-SHEET 2.

N0 MODEL.

INVENTOB ATTORNEYS m: NORiIS Pzrcns m. woroumu. WASNINGTDN. n, n,

No. 752,813. PATENTED FEB. 23, 1904. s. w. WARDWBLL. YARN CONTROLLER.

APPLICATION FILED D110. 5, 1901.

no MODEL. I 5 SHEETS-SHEET s.

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S. W. WARDWELL.

YARN CONTROLLER. APPLICATION FILED D20. 5, 1901.

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N0 MODEL.

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PATENTED FEB. 23, 1904..

No. 752,813. PATENTED FEB. 23, 1904.

' S. W. WARDWELL.

YARN CONTROLLER.

APPLICATION FILED 111:0. 5, 1901.

no MMMM L. 5 sums-sauce a.

INVENTOB.

ATTORNEYS UNITED STATES Patented February 23, 1904.

PATENT OFFICE.

YARN-CONTROLLER.

SPECIFICATION forming part of Letters Patent No. 752,813, dated February 23, 1904. Application filed December 5, 1901. Serial 110,8 1,825. (No model.)

To all whom it may concern:

Be it known that I, SIMON W. WARDWELL, a citizen of the United States,residing at Providence, in the county of Providence and State of Rhode Island, have invented a new and useful Improved Yarn-Controller, of which the following is aspecification.

My invention relates to yarn-controllers for textile machinery, and particularly to devices for use on doubling-machines such as are employed in the manufacture of threads.

The purpose of my invention is to provide improved devices for independently regulating the tension on each of the several yarns in a doubling means whereby said tensionregulating devices may be quickly and readily threaded without particular care and with the least possible movement andexertion on the part of the operator, and devices to cause the winding to be arrested when a bunch or slub occurs in any one of the several yarns.

The following specification fully sets'forth my invention and manner of its operation, and the annexed drawings, forming a part of the said specification, represent, respectively, in-j- Figure 1, the front view of a winding-machine fitted for doubling or Winding a plurality of yarns together and my new devices applied to said machine; Fig. 2, a side view.

of the stop-motion of the machine in conjunction with my new device; Figs. 3 and 4, de-

tails of the slub-detector; Figs. 5, 6, and 7 details of the tensions and of their arrangement; Fig. 8, a view, partly in section, on the line 1 1, Fig. 2, showing the arrangement and manner of adjusting the supplies; Fig. 9, aview in perspective of the fixed tension member d, showing the thread-groove 23; and Fig. 10, a view in perspective of the movable tension member o. I

The preferred embodiment of my invention is used in conjunction with stop-motion devices such as are described in my United States Pat,

passing through them. The yarn tension is,

however, not applied and controlled by means An important feature of my device is the I slub-detector, which when a slub occurs is moved to act upon the tension device to cause the release of the tension of the yarn, thus affecting the stopping of the winding and Without breaking the yarn.

In doubling yarn for the manufacture of threads the maintenance of uniform tension on the individual yarns and the elimination of slubs and motes are essential to a perfect thread product. It is for this class of work that my improvement is particularly devised. For convenience the term slub will be employed to designate any abnormalenlargement of the yarn whether it be a bunch of fiber incorporated in the yarn, a large knot, or any similar defect which would cause a bunch in the finished productand which must be removed or remedied by breaking or at least by stopping the yarn. The term mote applies only to bits of foreign matter which cling to its surface and can be stripped or removed without stopping or breaking the yarn.

Referring in detail to my invention, the yarn'controller comprises two tension members separable one from the other to receive the yarn and adapted to be pressed toward each other by suitable means to apply friction or resistance to the movement of the yarn. As shown in the accompanying drawings,both members are mounted on a common rod 18, that is supported in the portions 16 and 17 of the bracket K. One of themembers, d, is fixed, secured from turning about the rod 18 by the screw 19 passing through the ear 20 into the bracket K. The other member, 0, is movable, adapted to be swung toward the fixed member 61 by means of weights hung on the arm 15, connectedto the member '0. Each tension member comprises a body portion of grid form, two ears through which the supportingrod is passed, and a guide portion to receive the yarn and direct it to the grid. The guide portion comprises a narrow edge or rim 21,

extending from end to end of the member, bowing outward at its mid-portion and joined at its mid-portion with the body of the member by the tie-piece 22. The bars of the grid portion are of rectangular section with substantially square corners, the latter being just sufliciently rounded to remove any sharpness that might abrade or cut the yarn. They are disposed in such manner that when the two members are mounted together the bars of one member alternate with those of the other, so that when a yarn is passed and pressed between them it is caused to travel in a sinuous path, Fig. 7 causing resistance to its "movement and tension on the yarn as it is drawn from the members. The degree of tension im-' parted depends on the degree of sinuosity of the yarns path of travel both as regards the amplitude of deflections and their number. For fine yarns the best results are obtained from many deflections of slight amplitude,

' for the yarn is thus subjected to less strain.

As indicated in the term controller, the

members 0 and d serve to regulate the ten sion and control the delivery of the yarn, as well as to apply it. Acertain amount of tension is incident to the drag of the yarn on the surface of the supply,,-package as it'is unwound. When this drag is at its minimum,

the tension members are pressed tightly together, imparting the maximum amount of v When an increase in resistance occurs at the supply, the tension memtension to the yarn.

bers yield, permitting the yarn to straighten and the tension to decrease at the point where the yarn passes through the members. The bars of the grids are made with substantially square corners that they may more certainly engage and knock from the rapidly-moving yarn' any motes that may cling to it. Were the bars materially rounded, especially-on the edges over which the yarn passes, the motes would not be removed, but would ride over the bars. The bars of one grid do not pass those of the other, their movement beinglimited by the contact of the two tension members. Hence only a limited degree of tension can be applied. This is desirable in handling fine yarn, especially in work where uniforr'nityof tension on several yarns is the essential end to be attained and not a high degree of tension on individual yarns. The guide portion of each member is so curved from the plane of the grid portion that when the two members are mounted together a flar ing trough or channel is formed, into which ports a guide f, through which the yarn is led to the tension members. The other, 17 is of such height that its top and the surface of the guide f, over which the yarn draws, aline with the groove in the bars of the tension members and serve to insure that the yarn shall in threading be drawn down to the groove and nofarther. The guide f is preferably formed of wire. As shown in the drawings, it is formed of a loop the sides of which extend parallel for a short distance, then diverge,forming a means for readily threading, of the same general shape as formed by the guides of the tension members,-and,'finally, return in a reversed curve past the guide-loop as two legs 24 24, which enter appropriate socketsin the projection 16.

Between the guide f and the tension members is the detector a, consisting of a slotted plate with'two earslOlO, a yarn-slot 11, and a projecting portion 12, as clearly shown in Figs. 3, 4, and 6. The projecting portion 12 is 10f substantially triangular shape and is formed at an angle with the face ofthe body 9 and with its extreme portion 13 formed substantially at a right angle to the body 9 aforesaid. The detector is mounted by'the ears 1O 10 on the rod orpin g, which in turn is mounted in the legs of the guide f. The extremity 13 is posed in such relation to the tension members that when swung toward them it enters between them, and the inclined portion of the projection 12 forces them apart. When the pressure which rocked the detector is removed, the reaction of the closing tension members forces the detector back to'its normal position, where it rests against the loop portion of guide f, as shownin' full lines,

Fig. 2. The entrance to the yarn slot is rounded and flared, so that it may be readily threaded, and the latter operation is further aided by the close proximity of the detector when in its normal'position to the'guide f.

The tension members, guide f, and detector 00 are mounted near the top of a bracket K. Immediately beneath them is the supplyholder m. That the supplies may bereplenished as rapidly as possible, it is essential that the supply-holders m be in such position and so arranged that the operator may replace empty tubes and bobbins with the least possible movementor exertion. Tothis end the supplies are raised as high as'possible, and the tension devices are also inclined that the operator may lay the yarn in place without the exercise of special care. Their inclination also permits the supplies to be raised higher than would be possible were the tension members vertical. The supply is carried at the bottom of the depending arm 7c of the bracket K on a spindle Z, which may be of any form appropriate to the form of supply employed. The spindleZ is secured in the bracket or supply-holder m, mounted on the stud n, to be rocked thereon when desired. An ear 0, projecting from the portion 70 of the arm 70, carries a stop-screw 9, against which the face swings.

passes intothe detector at.

of the supply-holder bears and which limits the movement of the supply-holder under the action of its projecting counterweight portion a". The extremity Z2 of the depending arm It, to which the supply-holder is attached, is offset, as indicated in Fig. 8, so that the supplyholder is in line with the body of the arm is, bringing its spindle Z in line with the tensions above and its counterweight portion r in such position that its movement is limited by the arm in, as indicated by the dotted lines in Fig. 2. The screw 19 serves not only as a stop for the supply-holder, but also as a means for adjusting the alinement of the spindle Z with the guide f.

The bracket K, which carries the yarn-controlling and supply-holding devices, is mounted on a bracket H in such relation to the dropwire 26 that the thread-eye of the latter is in line with the axis on which the bracket K The latter can then be swung into any desired position without disturbing the relation between the guide f, the thread-line in the tension members 0 and d, and the dropwire 26.

Mydevice is operated as follows: Yarn is applied by tilting the spindle Z forward to the position indicated by the dotted lines in Fig. 2. When the yarn has been applied, the spindle is returned to its normal position by the counterweight portion 0, limited in its movement by the stop-screw p. The yarn is drawn from the supply by the operator into the guide f and laid in the tension members cand d. As it enters the guide f the yarn also From the tension members the yarn is led to-the drop-wire 26 and thence to the winding mechanism. On starting the winding the sudden pull on the yarn applies sufficient tension to draw it between the tension members and raise the dropwire 26, and so quickly is the former done that the drop-wire is not only raised, but is maintained in its raised position. As motes occur on the yarn they are knocked off by contact with the edges of the grid-bars. When a slub occurs, it is unable to pass the slot in the detector, but engages the latter to rock it into engagement with the tension members. The extremity 13- enters between the two members, and the inclined portion 12 forces the movable one back, relieving the yarn of its tension and permitting the drop-wire 26 to fall to effect the stopping of the winding.

The detector rocks so far forward that the slub rides out of the yarn-slot, continuing its movement with the yarn until the latter stops. The operator removes the slub from the yarn in which it occurs, pieces the yarn, and proceeds with the winding.

By employing the devices above described a superior product is obtained. The quality of the thread is enhanced by the removal of unsightly motes-such as dirt, bits of husk, &c.by the elimination of bunches, large knots, and similar defects without entailing unnecessary waste or a large quantity of knots and by the uniform tension of the component yarns, whereby the defect known as corkscrew twist is overcome. This latter defect is caused by inequalities in the tension, which result in one yarn lying on the surface of the thread and following the twist about it in a spiral. It is a defect inherent in all doubling processes where a pad tension is employed. The pads become worn in such manner that one yarn may receive the full degree of tension, while its neighbor, running over a worn portion, receives scarcely any. Further, a pad tension is unyielding and provides no compensation for the irregularities due to drawing the yarn from the supply. The tension on the yarn is always. the tension due to the pad plus the tension at the supply, increasing with each increase of resistance at the supply and decreasing with diminution of resistance there. In my device the yarn-controller or tension mechanism acts as a compensator. When the tension or drag at the supply increases, the tension members yield and diminish the amount of tension they apply. When the resistance at the supply lessens,increased tension is applied at the controller.

Slotted slub-stoppers have been used before, but they have been secured rigidly to the machine, and their efiicacy depended on breaking the yarn when a slub occurred, and thus causing the winding or other operation to be arrested. The yarn seldom or never broke at or near the slub, and hence unnecessary waste was caused. Frequently it broke so close to the package wound that the broken end would run in. It was then necessary to break all the yarns, unwind them until the lost end was found, and retie them all. This consumed time, inasmuch as the yarns could not be tied together in a bunch-knot, neither could they be tied separately with, the knots at substantially the same point in the doubling Either method of tying mentioned would cause as bad or worse a defect in the finished product as would a slub. Each yarn must be tied individually and the various knots so separated in the length of the product as not to materially affect its appearance.

The supply devices are particularly compact and convenient, so compact that they are brought close up to the tension devices, and are thus the more readily accessible. The

operator need not stoop each time the supply must be replenished. Because of its form and manner of mounting supplies of various diameters may be employed without interfering one with the other.

I do not limit myself to a detector pivoted or movably secured in any special way or to any special means whereby the movement of the detector: actuates the tension device, nor in this connection to a tension device of any special form; nor do I limit myself to any special character of stop device or means of putting the same into action.

While the devices constituting my invention have been described with particular reference to the operations of thread manufacture, they may obviouslybe employed in other textile work. I therefore do not limit myself to the precise form of structure hereinbefore described; but

' WVhat I claim as my invention is 1. The combination with a stopping device for textile-machines in which a drop-wire is sustained by the yarn passing through it, of a detector through which the yarn first passes, and which is adapted to be moved by the engagement therewith of a slub, and means actuated by the detector to relieve the sustaining efiect of the yarn, to cause said drop-wire to act to effect the stopping of the machine, and allow the slub to passby the detector without breaking the yarn.

2. Thecombination with a stop-motion dropwire which, when dropped, causes the stopping of the machine and which is sustained and withheld from effecting said stopping by the yarn passing through it, of a detector adapted to be engaged and moved by a slub to cause the drop-wire to fall and effect the stopping of the machine without breaking the yarn.

3. The combination with a stop-motion dropwire which, when dropped, efiects the stopping of the machine, but which is sustained and withheld from thus effecting the stopping by the tension of the yarn passing through it, of devicesfor applying and controlling the yarn tension and a detector through which the yarn is drawn and which is adapted to be engaged and moved by a slub to release the 'tension on the yarn, and effect the stopping of the machine without breakage of the yarn, by permitting the drop-wire to fall. r

4:. The combination with the drop-wire of a stopping device for textile-machines which, when dropped, efiects the stopping of the machine but which, during the operation of the machine, is sustained and withheld from effecting such stopping by the, tension of the yarn passing through it, of devices for applying and controlling said tension, comprising two members pressed together by; suitable means, a detector through which the yarn passes, adapted to be engaged by a'slub and rocked thereby to engage and separate the two tension members to release the tension on the yarn and permit the drop-wire to fall to effect the stopping of the machine Without breaking the yarn.

5. The combination with the drop-wire of a stop-motiondevice for textile-machines, of yarn-controlling devices, comprising two tension members pressed together uponthe yarn, a guide through which the yarn is drawn into the tension members, of a slotted plate intermediate the guide and the tension members, having a projection of substantially triangular shape, so formed that, when the plate is rocked by a slub, the said extension enters between the members aforesaid and separates them to relieve the yarn of its tension, and when the slub has passed the detector, the latter is returned to its normal position by the reclosing of said members;

6. The combination of a yarn-controlling device of twomembers adapted to be pressed together to put tension on the yarn, of a swinging slotted plate adapted to be moved by a slub to engage and separate said members to relieve the yarn of its tension in the manner and for the purposes substantially as described. i

7. The combination in a yarn-controlling device having two tension members adapted to be pressed toward each other, of a guide mounted on two legs adjacent the tensions, with a swinging plate, mounted between said legs on a pin passing throughthe'legs, having a narrow slot of just sufficient width to be engagedby a slub to be rocked'and caused to engage and separate said'tensionmembers, to release the tension on the yarn.

8. The combination with the stop-motion drop-wire 26 of two'yarn-tension members 0 and 03, one fixed, the other mounted to-be swung and pressed against the fixed member, and both so flared at their outer edges as to form a guide to direct the yarn to its proper position between the members, a swinging slub-detector a, formed with a projection 12 to engage the movable tension, whereby when the slub-detector is rocked toward the tension members, the movable member is separated from the fixed one, and when'the movable member is swung toward thefixed member, the slub-detector is returned to its normal position. r I

9. The combination with a stop-motion dropwire 26, "of two tension members, one, d,fixed, and the other, '0, mounted to be swung-and pressed against the fixed member, and both formed to divergefrom each other at their outer edges, to serve'as a guide for the-yarn in threading, a guide f through and over which the yarn'passe's asit enters thetensions, a swinging slotted slub-detector amounted to normally stand against the guide f, and with a projection 12 engaging the swinging tension member whereby, when the slub-detector is rocked, the swinging tension member 0 is separated from the fixed tension member d in the manner and for the purpose Substantially as described.

10. A yarn-controller comprising two tension members of grid form, with the bars of one member alternating with the bars of the other, and with a thread-groove out transversely across the bars of one or both members. r

11. A yarn-controller comprising two tension members, each having a portion of grid form and a curved guide portion, one member fixed and the other movable to and from the fixed member; and having an arm by which it is swung toward the fixed member, and one or .both members having a thread-groove cut transversely across the bars of the grid portion.

12. A movable tension member for a yarncontroller comprising in one piece a flat grid portion, two ears turned at right angles to said grid portion, having holes to receivea.

rod and so formed that the axis of the rod lies in the plane of the face of said grid portion, a guide portion curved backward from the face of said grid portion, and an arm to which weight is applied to actuate the tension substantially as described.

13. A fixed tension member for a yarn-controller comprising in one-piece, a flat grid portion, two ears turned at right angles to said grid portion, having holesto receive a rod and so formed that the axis of the rod lies in the plane of the face of said grid portion, a guide portion curved backward from the face of said grid portion, and an ear whereby the member is secured from turning on said rod, substantially as described.

1 1. In a yarn-controller, the combination with the drop-wire of a stop-motion mechanism having an eye or guide through which the yarn passes, of a bracket mounted to be swung about an axis in line with the eye of said dropwire, separable tensions mounted on the top of the bracket, and a tilting supply-holding device mounted at the bottom of the bracket.

15. In a yarn-controller, the combination with the drop-wire of a stop-motion mechanism having, an eye or guide through which the yarn passes, of a bracket mounted to swing on an axis that is in line with the eye of the drop-wire, separable tension members mounted on the top of the bracket, 2. guide through which the yarn is conducted to the tensions, a detector between the guide and the tensions adapted to be engaged by a slub to open the tensions, and to be rockedto allow the slub to pass on, and after it has passed, then to be returned to its normal position by the reaction of the tension members, and a counterweighted supply-holding device mounted at the bottom of said bracket, substantially as described.

16. A bracket K for a yarn controller, adapted to be swung about a substantially vertical axis, bearings at the top for tension V and guiding devices, a depending arm curved forward at its bottom and having its extremity is offset, and at said extremity, a bearing for the stud n and an ear for an adjustable stopscrew 19, a supply-holder m mounted to be rocked on said stud, having a face q opposed to the stop-screw p, and a counterweight por.- tion 0" to hold the face q against said stopscrew, and a supply holding spindle 'Z secured in said supply-holder, substantially as described. i

17. The combination with the bracket K for a yarn-controller, having bearings at its top for separable tension members and yarnguiding devices, and a depending arm having its extremity 74 offset, and at said extremity an ear 0, a stop-screw p in said ear, abearing for a stud'n, acounterweight'ed supply-holder m mounted on the stud and susceptible of being rocked but limited in its movement in one direction by the contact of the counterweight portion rwith'thearmkof the bracket K, and in the other direction by its contact with the adjustable stop-screwp, and aspindle Z adapted to be adjusted in its alinement with the entrance to the tensions by said stopscrew.

18. A yarn-controlling device, comprising with a bracket K, having at its top two projections, 16, and 17 and atits bottom a depending arm 70, a rod 18 mounted in the two projections and, mounted on said rod, two

separable tension members 0 and d, each having a portion of grid form, with the bars of one member alternating with those of the other, and a thread-groove cut transversely across the bars of one or both members and means for pressing the two members together, a guide f mounted in the projection 16, with the eye of said guide and the top of the projection 17 in line with the thread-groove in the bars of the tension members, a counterweighted supply-holder m pivotally mounted at the bottom of the arm In, aspindle Zin said 1 holder to retain the yarn-supply, and a stopscrew 10 to limit the movement of the supplyholder and aline its spindle with the entrance to the tension members, substantially as described. j

19. A slub-detector for a yarn-controller, having two ears 10, 10, a slot 11, and a sub stantially triangularly-shaped projection 12.

20. A slub-detector for a yarn-controller, with two separable tension members, having two ears, 10, 10, a slot 11, and a projection 12, so formed that, when the detector is moved toward the two members, the projection 12 enters between and separates them, and, when the two members of the controller are brought together, the detector is returned to its normal position.

21. A slub-detector for a yarn-controller, having two ears, 10, 10, a yarn-slot 11, with flared opening to readily receive the yarn, and a projection 12 to engage the separable members of a yarn-controlling device, so formed that when the detector is rocked by engagement with a slub, it opens said separable members, and when the slub has passed the detector, the reclosing of said members forces the detector back to its'normal position.

22. A slub-detector for a yarn-controller,

. having two ears 10, 10, a yarn-slot'll, with flared opening to readily receive the yarn, a projection 12 formed at an angle with the body of the detector, and having an extremity 18 formed at substantially right angles 'to' the body of the detector, and adapted to enter betweenthe two members of a yarn-controlling device, to engage the inclined portion12 in the manner and for the purpose, substantially as described.

23. The combination in a yarn-controllingdevice of two tension members, each comprising in one piece parallel lateral bars and 'portions whereby the member is pivotally mounted, and in such manner that the bars of one member alternate those of the other, and means to yieldingly press a running thread between said bars to sinuate the path of the yarn as described. 2

24. The-combination in a yarn-controlling device, of twotension members each comprising in one piece, parallel lateral bars, with a thread-groove cut transversely across them,

portions whereby the member is pivotally mounted and in such relation to its mate that the bars of one member alternate with those of the other, and means whereby the members are so pressed together that a thread running through the thread-groove of the bars is diverted from its straight course to follow a" sinuous path of travel. 1 7

25. The combination with the stop'device of a textile-machine, and. with the drop-wire thereof supported by the thread, of a-tension moved by the engagement of a slub therewith,

thereby to cause the separation of the tension members.

- 27. A slub-detector, constructed for pivotal connection and provided with a thread-groove and projection for actuating atension device, substantially as described.

28. The combination in a yarn-controlling device, of two tension members each comprising-inxone piece parallel lateral bars, with a thread-groove cut transversely across them, portions whereby the member is pivotally mounted and in such relation to its mate that the bars of one member alternate with those of the other, and means whereby the members are so pressed together that athread running through the thread-groove of the bars is diverted from its straight course to follow a sinuous path of travel. 29. Ayarn-controller, comprisingtwo members pressed yieldingly toward each other, each having portions which alternate and cooperate with similar portions on the other, to sinuate the yarn as it travels between the members, said portions of one or botlnmembers having formed across them a groove or guideway for the yarn.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

SIMON W. WARDWELL.

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