US2236432A - Winding machine - Google Patents

Description

March 25, 1941. w. v. JACOBSON WINDING MACHINE Filed June 12, 1939 4 Sheets-Sheet l 55 w QM 10% March 25, 1941. w. v. JACOBSON WINDING MACHINE Filed June 12, 1939 4 Sheets-Sheet 2 N% g g (I). U. JQQQ-M Max-ch25, 1941. w. v. JACOBSON WINDING MACHINE Filed June 12, 1939 4 Sheets-Sheet 5 mo, 6%, emu, q heal?M March 25, 1941. w v JACQBSQN 2.236.432

WINDING MACHINE Filed June 12, 1939 4 Sheets-Sheet 4 m? /51 a; 1512 011221; 2 z? 52 w. a. TM.

Patented Mar. 25, 1941 UNITED STATES PATENT OFFICE WINDING MACHINE Application June 12, 1939, Serial N 0. 278,739

18 Claims.

This invention relates to winding machines, and particularly to machines for winding filling bobbins, cops, pirns and like packages of yarn for use in loom-shuttles or for other purposes. By the term bobbin 0r cop as hereinafter used in the specification and claims is meant any wound mass of textile or strand-material wound in overlapping layers and growing by longitudinal or axial extension; and the term yarn as hereinafter employed is intended to apply to all kinds of strand-materials.

One object of the present invention is to simplify the traversing mechanism of the winding machine by eliminating certain elements previously considered necessary for distributing the yarn in overlapping layers on the bobbin.

Another object of the invention is to provide traversing means of minimum weight adapted for reciprocation at high speeds without the deterrent effects of inertia and momentum during reversal in the direction of its reciprocation.

Another object of the invention is to provide means for progressively advancing the traverse of the yarn longitudinally of the bobbin during the winding without the use of contact-means or the like engaging the periphery of the bobbin.

Another obj eot of the invention is to provide a Winding machine of the type indicated in which the yarn is traversed on the bobbin .by means of a relatively reciprocated helically-grooved rod or bar engaging the yarn and the traverse advanced by rotating the bar to feed the yarn longitudinally thereof.

Another object of the invention is to provide means actuated by the reciprocation of the traverse-rod to cause it to be rotated to progressively feed the yarn longitudinally of the bar or from end to end thereof.

Another object of the invention is to provide a winding machine of improved construction capable of being manufactured at low cost and durable in use over long periods of time.

Further objects of the improvement are set forth in the following specification which describes a preferred form of construction of the winding machine with'several modifications in the structure and arrangement of the traversing means as illustrated by the accompanying drawings, in which:

Fig. 1 is an elevational view of one unit of a multi-spindle winding machine showing the present invention embodied therein;

Fig. 2 is an enlarged plan view of the traversing means of the machine showing its relation to the winding spindle;

Fig. 3 is an enlarged fragmentary elevation of the traversing means viewed as in Fig. 1;

Fig. 4 is a similarly enlarged end view of the ratchet-means for rotating the traverse-rod shown partly in section on line 4-4 of Fig. 3

Fig. 5 is a longitudinal sectional view of a portion of the traversing means taken on line 55 of Fig. 2;

Fig. 6 is an enlarged transverse sectional View of the traverse-rod taken on line 66 of Fig. 1 showing its relation to the winding bobbin and indicating the manner in which the strand of yarn feeds to the bobbin;

Fig. 7 is a similar view showing t-he strand 7 'leading to a bobbin being rotated in the opposite direction;

Fig. 8 is a view showing a modified form of the traverse-rod having helical grooves formed with a varying pitch or lead;

Fig. 9 is a plan view of the traversing means similar to Fig. 2 showing a modified form of construction of the ratchet-means for rota-ting the traverse-rod;

Fig. 10 is an end View of the same;

Fig. 11 is a fragmentary View of the same partsecti-onal along the axis of the traverse-rod;

- Fig. 12 is a fragmentary view of the traversing means showing a further modified form of the mechanism for rotating the traverse-rod;

Fig. 13 is a similar view showing the cam-actuated clutch-means in a different position of operation;

Fig. 14 is an elevational view of this latter modified form of construction shown partly in section along the axis of the traverse-rod;

Fig. 15 is a transverse sectional view of the clutch for rotating the traverse-rod taken on line |5-l5 of Fig. 14; and

Fig. 16 is a longitudinal sectional view of a similar clutch having rollers instead of balls.

The present invention relates to winding machines of the type shown and described in U. S. Letters Patent No. 946,831, granted J a-nuary 18, 1910, to Simon W. Wardwell, and consists in improvements in the means for traversing the yarn longitudinally 'of the cop or bobbin being wound and progressively advancing the traverse along the axis thereof to deposit the yarn in overlapping layers. Heretofore in machines of the present type a thread-guide mounted on a reciprocable rod or bar and arranged to be advanced along the bar, or with the bar, in the direction of the traverse has been employed for distributing the yarn on the cop or bobbin. In most instances the means for feeding or advancing the threadu de along the axis of the cop or bobbin comprised screw-threaded connections actuated by a wheel or disk rotated intermittently by contact of its periphery with the winding. In other instances ratchet-means have been employed to rotate a screw-threaded rod to advance the guide.

In the present invention the thread-guide, its screw-threaded connections and the contactwheel are dispensed with entirely and the traverse-rod itself employed as the guiding means for the yarn; the rod being provided with a continuous helical groove or similar formation in which the strand lies and is fed longitudinally of the cop or bobbin by rotation of the rod. Stated briefly, a reciprocating rod formed with a helical groove or its equivalent directly guides the yarn to the cop or bobbin being wound and traverses it thereon, and by rotating the rod the strand is progressively fed therealong to advance the traverse to step each course of winding beyond the previously-laid course. Any suitable means may be provided for rotating the traverse-rod such as a ratchet or one-Way clutch, such a form of construction making for simplicity by utilizing the reciprocating motion of the rod to actuate said means intermittently.

In a preferred form of construction of the in vention illustrated in the present drawings Fig. 1 shows one winding spindle of a gang machine in which the driving mechanism is enclosed in a casing 2 mounted on legs or standards 3. The winding spindle 5 is journaled in bearings 6 and 1 at opposite sides of the casing 2 and driven from a horizontal drive-shaft 8 journaled therebelow. A .gear 9 on the drive-shaft 8 meshes with a pinion In which is connected to the winding spindle 5 by means of a clutch l l, these connections being of usual arrangement,

A second drive-shaft 14 carries a gear l5 which meshes with a similar gear l6 mounted free to rotate on the spindle 5 and connected by a clutch IT to a barrel-cam I8, this construction being also common to machines of the present type. A rock-shaft 20 mounted below the cam l8 carlies a rocker-arm 2| adapted to be oscillated by the cam l8 through its connection therewith by a roll or follower 22 engaging a helical groove in the cam. Mounted to reciprocate in a bearing at one side of the casing 2 is a rod 25 connected by a link 26 to the rocker-arm 2|, this connection being adjustable by means of a series of holes 2'! in the rocker-arm to vary the length of stroke of the rod 25.

In Figs. 1 and 2 of the present drawings the winding spindle 5 is shown as adapted to rotate a bobbin-tube b connected thereto by means of a cup-member 28 fast on the end of the spindle, the opposite end of the bobbin-tube being held in a cup 29 at the end of a live spindle 3O journaled in a sleeve 3| held in an outboard bearing 32. The outboard bearing 32 may be formed as a part of, or fastened to, an overhanging bracket 33 attached at 34 to the side of the casing 2 of the machine. In other instances the winding spindle 5 may be continued outwardly from the side of the machine to receive a paper cop-tube or the like as common in the present art. In the present form of construction one of the cupmembers 28 or 29 is adapted to be moved in an axial direction to permit placing of the bobbin 7.) in position between the cups, this arrangement not being herein shown or described in detail as it is well known to those versed in the art.

As shown in Figs. 1 and 2 a bearing-member is attached to the outerv end of the bracket 33 at 35 and formed with a tubular quill 3T. Attached to the inner end of the bracket 33 is a bearing-member 40 secured thereto by means of screws 4| passing through slots in the member. The bearing-member 40 is formed to enclose a sleeve or bushing 42 in which is slidably mounted one end of a traverse-rod 45 arranged with its opposite end slidably mounted in the quill 31. The traverse-rod 45 is connected to be reciprocated from the shorter rod 25 in ofiset relation thereto by means of an angular member or arm 46 and through this arrangement the traverserod 45 is positioned directly above and in axial alinement with the winding spindle 5. The angular arm 46 is fastened to the end of the rod 25 by means of a pair of nuts 41 threaded onto the rod, the opposite end of the arm surrounding the rod. 45 and being counterbored to receive the shouldered end of its enlarged portion 48 with a collar 49 set up against the side of the arm to secure it rigidly to the rod.

That portion of the traverse-rod 45 overlying the bobbin held between the spindle 5 and the outboard spindle 30 is formed with a helical groove 55, for example, constructed in the manner of a screw-thread. The groove 50 is adapted to receive a strand of yarn y or the like leading down from above whereof to guide it onto the bobbin-tube or yarn-carrier b and traverse it longitudinally thereof when the rod 45 is reciprocated through its connection with the shorter rod 25 actuated by the rocker-arm 2|. By rotating the traverse-rod 45 the strand of yarn y is progressively fed outwardly therealong from the butt-end of the bobbin b to its tip-end as required to build the bobbin with overlapping layers.

In the embodiment of the invention illustrated in Figs, 1 to 5, inclusive, the traverse-rod 45 is adapted tobe rotated intermittently by means of a ratchet-device shown in detail in Figs. 3 to 5. The bearing-member 45 which supports the bushing 42 for the end of the traverse-rod 45 is of bifurcated form and mounted on the bushing between the bearings 43 is a ratchetwheel 53, see Figs. 4 and 5. The ratchet-wheel 53 is secured fast to the sleeve or bushing 42 in which the rod 45 slides by means of a set-screw 54 in its hub. The bushing 42 is free to rotate in the bearings 43 of the member 40 but held from axial movement by the ends of the hub of the ratchet-wheel 53 abutting the ends of the bearings. One end of the bushing 42 is formed with a head 55 in which is a pin 55 engaging a keyway or slot 51 in the traverse-rod 45, see Fig. 5. By this form of construction the bushing 42 is keyed to the traverse-rod 45 to adapt the ratchetwheel 53 fast with the bushing to rotate the rod while permitting the latter to slide through the bushing during its reciprocation by and with the rod 25.

The ratchet-wheel 53 is rotated to turn the traverse-rod 45 by means of a pawl engaging the teeth of the wheel. The pawl 60 is pivoted at the end of an arm or lever B! pivotally mounted on a pin 62 held in spaced hubs or bearings 63 projecting from the bearing-member 40, and a helical spring 64 anchored to the arm 6| at 55 and connected to the pawl at 65 maintains the pawl in engagement with the teeth of the ratchet-wheel 53. A second spring 61 coiled about the pin 62 has one arm held against the bearing 63 with its opposite arm engaging the pawl-lever 6| to normally tend to move the pawl rearwardly on the teeth of the ratchet-wheel 53.

A stop-finger 6B projecting laterally'from the lever 6| is adapted to make contact with the under side of the bearing-member 40 to limit the rearward movement of the lever under the action of the spring 61. A detent-pawl 69 fastened to the under side of the bearing-member 40, see Fig. 4, has its end engaging the teeth of the ratchet-wheel 53 to prevent retrogressive movement of the latter.

As a convenient and simple means for actuating the lever 6| to cause the pawl 60 to turn the ratchet-wheel 53 to rotate the traverse-rod 45, camming means are provided on the rod 25 for rocking the pawl-lever at each reciprocation of the rod. Various forms of cams may be used for this purpose and Figs. 1 to 4 of the drawings illustrate a plate-like member 10 attached to the angular arm 46 which connects the rod 45 with the rod 25 and formed with an inclined portion "II. The cam-member 10 has its lower portion slotted at 12 to receive a pair of screws 13 threaded into the side of the angular arm 46, this mounting providing for adjustment of the cam-member longitudinally of the rod for a purpose as explained later. Mounted between the bifurcation of a bearing 14 at the upper end of the pawl-arm 6| is a roller '15 journaled on a pin 16 held in the bearing. The roller 15 has a convex periphery adapted to be engaged by the fiat face of the cam-portion H of the member H! during reciprocation of the traverse-rod 45 in the manner illustrated by dash-lines in Fig. 2 and by full lines in Fig. 4. It will be obvious that at each rearward stroke of the traverse-rod 45 the cam-portion 1| will ride along the roller 15 to cause its inclined face to rock the pawl-arm 6| to turn the ratchet-wheel 53; the cam-member 1|] being adjustable longitudinally of the rod by loosening the screws 13 to vary the extent of its engagement with the roller 15 and thereby the moment of oscillation of the arm 6|. Thus the adjustment provides for turning the ratchetwheel 53 through a distance of one or several teeth in accordance with the requirements for rotating the traverse-rod 45 to secure the proper feed of the yarn y in its groove 50.

The method of operation of the winding machine with the traverse mechanism arranged as described above is explained as follows: A yarncarrier or bobbin b is placed between the cups 28 and 29 in the manner illustrated in Fig.1 for rotation by the spindle 5 and the strand of yarn y to be wound is led down from above and its end attached to the bobbin b in any suitable manner, see Fig, 3. The yarn may be supplied from a source located above the machine, or arranged below with the strand leading upwardly and then downwardly to cause it to lie in the groove 50 as it feeds to the bobbin 1) in the manner illustrated in either Fig. 6 r Fig. 7 of the present drawings. That is to say, the winding spindle may be rotated in either direction in accordance with whether the yarn is to be wound on the bobin with a leftor, right-hand lead, the lap of the yarn around the rod being appropriately arranged on oneside or another as indicated in Figs. 6 and 7. A suitable tension-device is usually employed for maintaining the yarn taut as it feeds to the bobbin, but this device and the source of supply of the yarn are not herein illustrated as they may be of any usual arrangement as generally employed in the art.

The drive-shafts 8 and I4 are usually driven continuously and the drive connected. to .the spindle 5 and cam H; to rotate the latter through the means of the clutches II and I1. Starting and stopping meansare usually employed in the machinefor controlling the clutches II and H, but as these devices form no part of the present invention they are not herein shown or described. Suffice it to state that as the spindle 5 is rotated the yarn will be wound on the receiver or bobbin b and due to the connection of the traverse-rod 45 with the cam I8 the rod is reciprocated to traverse the yarnlongitudinally of the bobbin. The extent of reciprocation of the traverse-rod 45 is such as to traverse the yarn from the buttend of the bobbin b outwardly throughout only a portion of the length of the latter and at each rearward stroke of the rod 45 the cam-portion 1| of the member 10 carried on the rod will engage the roller to rock the lever 6| to oscillate the pawl 60. Each oscillation of the lever 6| and pawl 6|] will turn the ratchet-wheel 53 through the distance of one ormore ofits teeth as regulated by the adjustment of the cam-member 10 on the arm 46 and thus the ratchet-wheel 53 will be caused to rotate the bushing 42 and thereby the traverse-rod 45 as the latter slides through the bushing. In this way the traverse-rod 45 is rotated to a lesser or greater extent in accordance with the adjustment to feedthe strand of yarn along the groove 50 towards the outer end of the rod. This intermittent rotation of the traverse-rod 45 is continued throughout the whole winding of the cop or bobbin to cause the traverse of the yarn to be advanced lengthwise of the bobbin to dispose the layers of yarn in overlapping relationship whereby the bobbin grows by longitudinal extenison rather than diametrically. It will be understood that as the first few layers of winding are deposited on the receiver b the bobbin B is built up with a tapering base as is usual in filling winding; but eventually, as the yarn mass reaches a predetermined diameter the stepping of the' layers along the bobbin 1) forms the mass with a cylindrical contour terminating in a conical nose substantially of the same taper as its base. In other words, during the progress of the winding after the conical base of the bobbin is formed the yarn is laid on the tapered chasethereof and the winding continues in the usual manner as well known to those versed in the art.

It is to be observed that with the form of construction of the invention as above explained, where the yarn is wound on a tapered receiver or bobbin-rtube b the body of the bobbin B will be formed with a taper corresponding to that of the tube, due to the fact that the layers of yarn have a constant or uniform advance along the bobbin. It is desirable, of course, to wind a maximum amount of yarn on the receiver 17 in accordance with the capacity of the shuttle in which the bobbin is to be used and consequently it is preferable to wind the bobbin without a taper on the periphery of its main body. To effect this desired result the groove 55 or other helical formation of the traverse-rod'45 may be so designed as to advance or feed the yarn at a gradually decelerated rate, that with a differentialr'i-te of feed as compared with the uniform feed provided by a groove of uniform pitch. Referring to Fig. 8, the traverse-rod 45 is here shown with its groove 58 formed with a varying pitch or lead; that is, the groove starts with a relatively coarse pitch or lead at the rearward end of the rod and the pitch is gradually lessened or made finer toward its outer end. Through this form of construction o'f the traverse-rod 45 the rate of feed of the windin'g'stran'd along the rod may be regulated to cause the bobbin to be built. with the layers advancing and overlapping to a lesser extent toward thenoseend of the bobbin so that when winding on a tapered receiver the main body of the bobbin will be formed of true cylindrical shape rather than tapered.

Figs. 9, l and 11 of the drawings illustrate a modified form of construction of the invention which provides for reciprocating the traverse '89 projecting from the side of the casing 2 beneath the winding spindle 5. The yarn-carrier or bobbin b may be mounted and driven in the same manner as previously explained with its butt-end held in the cup 28 at the end of the spindle and its tip-end supported rotatively in the cup on the spindle 30 which is journaled in a bushing 3I adjustably mounted in the outboard bearing 88.

Preferably, the inner end of the traverse-rod 85 is coupled to the rod-section 86 to adapt it to be rotated independently thereof, this connection being shown in Fig. 9. A thimble 90 is secured by a pin 0| to a'cylindrical sleeve 92, likewise connected to the end of the rod-section 86, and the end of the main rod 85 projects through a bore 93 in the opposite end of the thimble with a washer or collar 95 riveted onto its reduced end to rotatively connect the rod 85 to the section 86. The outer end of the traverserod 85 is slidable in the bore of a sleeve 81 which is keyed rotatively therewith by means of a pin 00 engaging a slot or keyway 99 in the bore of the sleeve. The sleeve 91 is formed with, or has attached to its outer end, a ratchet-:wheel I00 abutting the end of the bearing 88 and a pin I02 in the bearing projects into an annular slot IE3 in the sleeve to restrain it from longitudinal displacement. in the bearing while permitting it to rotate with the rod 85.

Referring to Figs. 9 and 10, the ratchet-wheel I00 is rotated to turn the rod 85 by means of a pawl I05 pivoted at I06 to the end of a rockable lever I01 and urged into engagement with the teeth on the wheel by a spring I08. The lever I01 is pivoted on a screw I09 secured in a lug H0 projecting from the side of the bearing 88, and a spring H2 coiled around the head of the screw with one leg H3 held in the slot therein and its opposite leg H4 connected to the lower arm of the lever acts to rock the lever to move the pawl I05 rearwardly from one tooth to another on the ratchet-wheel I00. An angularlyshaped arm H5 fastened to the side of the lug I00 by a nut H1 on the threaded end of the screw 1 09 is arranged with its laterally-projecting portion IIB overlying the edge of the upper arm of the lever I01 for engagement therewith to limit the rocking motion of the lever under the tension of the spring H2. The lower arm of the lever I01 is formed with an angularly-related toe-piece H9 having a rounded end adapted to be engaged by'a' cone-shaped cam-member I20 on the traverse-rod 85.

The traversefrod 85 projects beyond the outer 'end of the bearing 88 with the peripherallytapered-cam I20 adjustably secured to its screwthreaded end. The cam I20 may be adjusted longitudinally of the rod 85 by turning it on the threaded portion thereof, a check-nut H6 being set up against the hub of the cam to secure it in adjusted position. The cam I I5 is thus reciprocated with the traverse-rod 85 to adapt its tapered periphery toride in under the toe-piece II 8 of the lever I01 to rock the latter during each inward stroke of the rod. Through this arrangement thelever I01 is rocked intermittently to cause the pawl I05 to turn the ratchetwheel I00 and rotate the traverse-rod 85 at each traverse of the latter. In this way the strand of yarn y leading through the helical groove in the rod 85 is fed outwardly therealong to form the bobbin with overlapping courses in the same manner as previously explained in connection with the first-describedQembodiment of the invention.

Figs. 12 to 16, inclusive, illustrate a still further modified form of construction of the invention in which the traverse-rod is rotated by means of a one-way clutch actuated by camming means. In this embodiment the traverse-rod I is formed with an enlargement or hub I26 enclosed by a cylindrical sleeve or clutch-member I21 adapted to befrictionally engaged therewith by means of balls or rollers held in pockets at one end of the hub. Preferably, the traverse-rod is constructed in two axially-alined sections as shown in Fig. 14, the main threaded portion I25 being joined to an extension I30 by a coupling providing for relative rotation between the parts. Conveniently, the sleeve I21 is constituted as the coupling member, its rearward end being formed to enclose a hub or boss I3I fast on the end of the rod-extension I30 and its forward end reduced in diameter and provided with screwthreads for receiving a cupped nut or collar I32. The end-wall of the sleeve I21 is thus adapted to abut the rearward side of the hub I3I on the extension I30 while the collar I32 abuts the forward side of the hub I26 on the main rod I25 to couple together the two sections of the rod.

The rearward end of the hub I26 is provided with a plurality of angular pockets I34, see Figs. 14 and 15, formed with their bottom walls sloping or inclined radially outward toward the periphery. Held in the deeper ends of the pockets I34 are balls I35 adapted to roll on the inclined bottom walls of the pockets to bind against the interior surface of the sleeve I21 to effect the clutching action between the sleeve and hub I26. Fig. 16 illustrates a slightly modified construction of the clutch-device wherein the pockets I31 in the hub I26 are extended longitudinally thereof and fitted with rollers I38 in place of the balls I35. In either instance the rotation of the sleeve I 21 in the direction indicated by the arrow in Fig. I I5 will cause the balls I35, or the rollers I38, to clutch the sleeve to the rod I25 to rotate the latter with the sleeve; and when the sleeve is turned in the opposite direction the balls, or rollers will roll into the deeper ends of their pockets to declutch the parts. While the present drawings illustrate two common forms of the clutch-device for rotating the traverse-rod it will be understood that other types of friction or positive clutches may be employed for this purpose 2,236,432 The clutchsleeve 12'! may be turned forwardly and rearwardly to rotate the traverse-rod I25 intermittently in one direction only by means of a cam-groove M on its periphery engaged by a relatively fixed follower or roller I SI. In Figs. 14 and 15, the roller I4! is shown as journaled on a stud hi2 riveted to the end of an arm I43 which is secured to the side of the machine casing 2 at M4. The cam-groove lw in the sleeve I2! is inclined to the path of traverse of the rod I25 and consequently when the rod is reciprocated- It will be observed from the foregoing that the present invention provides an extremely'simple and efficient means for traversing the yarn to wind bobbins, pirns, cops and other forms of packages to build the latter in overlapping layers of less extent than the length of the package with the courses advancing along the axis thereof. By the present improvement in traversing means of this type the construction of the winding machine is greatly simplified and rendered less expensive to manufacture; While the elimination of the usual reciprocating or oscillating thread-guide and its connections reduces the weight of the mechanism and thereby the effects of inertia and momentum so that the machine may be operated at higher speeds.

In machines of the present type heretofore used the thread-guides have been subject to excessive wear by the abrasive action of the yarn feeding through the slot or eye in the guide. This is'particularly true in winding silk, rayon and other yarns of a glazed nature, and even with guides made of vitreous materials such as porcelain or glass the yarn will cut grooves therein and destroy their serviceability. With the present improved construction of the yarn-guiding means the helical or continuous grooved formation of the traverse-bar provides a length of guiding surface for the strand many times the length of the bar and of much greater area than the groove or eye in the usual guide so that wear is reduced to the minimum, in fact it is negligible.

VVnile the invention is herein shown and described as embodied in a preferred form of construction, with several modifications thereof, it is to be understood that further changes may be made in the structure and arrangement of the device without departing from the spirit or scope of the invention. Therefore, Without limiting myself in this respect, I claim:

1. In a winding machine for winding filling cops or bobbins with an axially-advancing traverse, means for rotating a bobbin, a traverseelement extending longitudinally of the bobbin, said traverse-element having a continuously advancing helical formation on its periphery of greater extent than the length of the required traverse and adapted for engaging a strand of yarn, means for effecting relative reciprocation between the traverse-element and bobbin to traverse the yarn on the bobbin, and means for rotating the traverse-element to progressively advance the yarn therealong whereby to advance the range of traverse longitudinally of the bobbin.

2. In a winding machine for winding filling cops or bobbins with an axially-advancing traverse, means for rotating a cop or bobbin, a longitudinally-extending traverse-member arranged opposite the bobbin, said member having continuously advancing strand-engaging helicallydisposed projections on its periphery extending therealong to a length substantially greater than that of the required traverse, means for effecting relative reciprocation between the traversemember and bobbin to traverse the am on the latter, and means for rotating the traverse-member to slowly advance the yarn therealong during itstraverse by said member.

3. In a winding machine for winding filling cops or bobbins with an axially-advancing traverse, means for rotating a cop or bobbin, a traverse-rod extending longitudinally of the bobbin and having a continuously advancing helical formation-on its periphery extending substantially' the full length of the bobbin and adapted for engaging the yarn strand to be wound, means for effecting relative reciprocation between the bobbin and traverse-rod to traverse the yarn on the bobbin, and means for rotating the traverserod to progressively advance the yarn strand lengthwise thereof during its traverse on the bobbin.

4. In a winding machine for winding filling cops or bobbins with an axially-advancing traverse, means for rotating a cop or bobbin, a traverse-rod extending longitudinally of the bobin, said rod having a continuously advancing helical formation on its periphery extending substantially the full length of the bobbin and adapted for engaging the yarn strand to be wound, means for effecting relative reciprocation between the traverse-rod and bobbin to distribute the yarn on the bobbin, and means actuated by said reciprocation to rotate the traverse-rod to progressively advance the courses of winding along the bobbin.

5. In a winding machine for winding filling cops or bobbins with an axially-advancing traverse, means for rotating a cop or bobbin, a traverse-rod provided with a continuously advancing helical grOOVe on its periphery for engaging the yarn strand to be Wound, said groove extending substantially the full length of the bobbin, means for reciprocating the traverse-rod longitudinally of the bobbin, and means for intermittently rotating the rod to progressively feed the yarn strand lengthwise thereof.

6. In a winding machine, means for rotating a cop'or package, a traverse-rod provided with a helical groove on its periphery having a continuously advancing lead, said groove being adapted to receive the yarn strand to be wound, means to effect relative reciprocation between the traverse-rod and package to traverse the yarn on the latter, and ratchet-means for rotating the rod to advance the yarn strand lengthwise thereof during its traverse thereby.

7. In a winding machine, means for rotating a cop or package, a traverse-rod formed with helically-extending means on its periphery having a continuously advancing lead, said means being adapted to engage directly with the yarn strand to be Wound, means to effect relative reciprocation between the traverse-rod and package to traverse the yarn on the latter, a clutch for rotating the traverse-rod, and means for actuating the clutch to rotate the rod to advance the yarn strand therealong during its traverse thereby.

8. In a winding machine, means for rotating a cop or package, a traverse-rod formed with helically-extending means on its periphery having a continuously advancing lead and adapted to engage directly with the yarn strand to be wound, means to effect relative reciprocation between the traverse-rod and package to traverse the yarn on the latter, means to rotate the traverse-rod to advance the yarn strand lengthwise thereof, and camming means for actuating said rotating means.

9. In a winding machine, means for rotating a cop or package, a traverse-rod formed with helically-extending means on its periphery having a continuously advancing lead and adapted to engage directly with the yarn strand to be wound, means to effect relative reciprocation between the traverse-rod and package'to traverse the yarn on the latter, a ratchet for rotating the traverse-rod to advance the yarn strand lengthwise thereof, and camming means reciprocable with the traverse-rod for actuating the ratchet to rotate the rod.

10. In a winding machine, means for rotating a cop or package, a traverse-rod formed with helically-extending means on its eriphery having a continuously advancing lead and adapted to engage directly with the yarn strand to be Wound, means to effect relative reciprocation between the traverse-rod and package to traverse the yarn 0n the latter, a ratchet for rotating the traverse-rod to advance the yarn strand lengthwise thereof, a pawl for rotating the ratchet, and camming means reciprocable with the rod for actuating the pawl.

11. In a winding machine, means for rotating a cop or package, a traverse-r0d formed with helically-extending means on its periphery having a continuously advancing lead and adapted to engage directly with the yarn strand to be wound, means to effect relative reciprocation between the traverse-rod and package to traverse the yarn on the latter, a ratchet for rotating the traverse-rod to advance the yarn strand lengthwise thereof, a pawl for rotating the ratchet, a rockable lever carrying the pawl, and camming means reciprocable with the traverserod for rocking thelever to turn the ratchet to rotate the rod.

12. In a winding machine, means for rotating a 001) or package, a traverse-rod extending longitudinally of the package and having a helical formation on its periphery with a continuously advancing lead and adapted to engage the yarn strand to be wound, means for efiecting relative reciprocation between the traverse-rod and package to traverse the yarn on the latter, means for rotating the traverse-rod to progressively advance the yarn strand therealong during its traverse on the package, and means for adjusting said rotating means to vary the extent of rotation of the rod.

13. In a winding machine, means for rotating a cop or package, a traverse-rod extending longitudinally of the package and having a helical formation on its periphery with a continuously advancing lead and adapted to engage the yarn strand to be wound, means for effecting relative reciprocation between the traverse-rod and package to traverse the yarn on the latter, means for rotating the traverse-rod to progressively advance the yarn strand lengthwise thereof, a cam for actuating said rotating means, and means for adjusting the cam to control the extent of rotation of the rod during each reciprocation thereof.

14. In a winding machine for winding filling cops or bobbins with an axially-advancing traverse, means for rotating a cop or bobbin, a traverse-rod provided with a continuously advancing helical formation on its periphery extending substantially the full length of the bobbin and adapted for engaging the yarn strand to be wound, a reciprocating element connected to said rod to impart reciprocation thereto while adapting the rod to be rotated independently of said reciprocating element, and means for rotating the traverse-rod during its reciprocation to progressively advance the yarn strand lengthwise thereof.

15. A traverse mechanism for winding filling cops or bobbins with an axially-advancing traverse comprising a plurality of axially-alined rodsections coupled together to permit relative rotation therebetween, one of said rod-sections being provided with a helical thread extending substantially the full length of the bobbin to be wound, means to efiect unitary reciprocation of said rod-sections, and means for rotating the threaded section of the rod during its reciprocation.

16. A traverse mechanism for winding and like machines comprising a rod formed with a helically-threaded periphery, means for reciprocating said rod, a ratchet mounted on said rod and rotatively connected thereto, said rod being slidable relatively of said ratchet during its rotative connection therewith, and means to actuate the ratchet to rotate the rod during its reciprocating motion.

17. A traverse mechanism for winding and like machines comprising a rod formed with a screw-thread on its periphery, means to reciprooate said rod, a relatively stationary ratchetwheel mounted on said rod and rotatively connected therewith, said rod being slidable through the ratchet-wheel, and means operated during the reciprocation of the rod to advance the ratchet-wheel to rotate the rod.

18. A traverse-rod for winding and like machines provided with a continuous helical formation on its periphery having a diiferential lead with its pitch gradually decreasing along the length of the rod.

. WALTER V. JACOBSON.

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