US954343A - Traverse motion for yarn-spinning apparatus. - Google Patents

Description

A. E. RHOADBS.

TRAVERSE MOTION FOR YARN SPINNING APPARATUS.

APPLICATION FILED 1101!.17. 1909.

Patented Apr.5,1910.

3 SHEETS-SHEET 1.

A. E. RHOADES.

TRAVERSE MOTION FOR YARN SPINNING APPARATUS.

APPLICATION FILED HOV. 17, 1909.

Patented Apr. 5, 1910.

3 SHEETS-SHEET 2.

ANOREW a amhm c0 wowudwoou mw wa'mmmcn p A. E. RHQADES.

TRAVERSE MOTION FOR YARN SPINNING APPARATUS.

APPLIUATION TILED NOV. 17, 1909. 95%343 Patented Apr. 5, 1910.

3 SHEETS-SHEET 3.

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UNITE STATE? PLATENT FFICE ALONZO E. RHOADES, OF HOPEDALE, MASSACHUSETTS, ASSIGNOR TO DRAPER COM- PANY, OF I'IOPEDAEE, MASSACHUSETTS, A CORPORATION OF MAINE.

TRAVERSE MOTION FOR YARN-SPINNING APPARATUS.

Specification of Letters Patent.

Patented Apr. 5, 1910.

Application filed November 17, 1909. Serial No. 528,431.

1 '0 all whom it may Concern:

Be it known that I, ALoNzo E. RIIOADES, a citizen of the United States, and resident of I-Iopedale, county of \Vorcester, State of Massachusetts, have invented an Improvement in Traverse Motions for YarirSpin- .ning Apparatus, of which the following description, in connection with the accompanying drawing, is a specification, like characters on the drawing representing like parts.

This invention has for its object the production of a novel traverse motion for yarn spinning apparatus of the type wherein the yarn is wound upon a yarn-receiver or bobbin in such manner that a primary winding is first laid, and thereafter a secondary or main winding to complete the building of the yarn-mass. Bobbins so wound are generally designed for use in automatic fillingreplenishing feeler looms, the change of filling therein being effected through the instrun'ientality of a feeler when the yarn has been woven oif to a predetermined extent, a sufficient length of yarn being contained in the primary winding to preserve continuity of filling when filling-change is effected.

This primary windin should not be confounded with the so-called cop-bottom found in the spinning art, as it is altogether different therefrom in character and function, the ideal primary winding, sometimes termed the bunch being composed of several layers or wraps of yarn practically cylindrical in shape and tapered at its ends, while the cop-bottom is a substantially pearshaped or conical winding of yarn which, as its name implies, forms the bottom of the cop.

The yarn should be so laid that in the weaving operation it will draw off easily and freely from the bobbin at all times, even when closely approaching the primary winding, and afterward, or yarn breakage will occur. For that reason the lower end of the primary winding, adjacent the base or head of the bobbin, must not be too abrupt or square, and it is highly desirable that in such winding the yarn shall not be crowded upon itself to make an unduly thick mass, but shall lie evenly and smoothly, in order to avoid catching and breakage. That is, the contiguous turns of yarn in the several layers or wraps of the primary winding should be laid with the same uniformity and evenness as they are laid in the formation of the secondary or main winding, but this has heretofore been dillicult to effect because of the relatively short traverse (about fiveeighths of an inch, in practice) with which the primary winding is laid.

In United States Patent No. 941,648 granted to me on the thirtieth day of November, 1909, I show and describe a traverse motion wherein the primary winding is laid with a short and gradually increasing traverse up to a predetermined point, after which the winding is completed with a trav erse of uniform length, the speed of the traverse being uniform throughout the entire winding, but the gain of the traverse diminishes gradually from maximum to minimum during the formation of the primary windin As the yarn is delivered to the bobbins at a uniform speed during the winding operation it will be readily understood that if the ring-rail reciprocates at uniform speed the yarn must be crowded or piled up on itself to a greater extent during short traverse than will be the case when the traverse is lengthened, and the decrease of the gain in my patent just referred to prevents too much yarn being laid at the lower end of the bobbin.

In my present invention I lnwe provided means whereby the yarn in the primary winding is laid with substantially the same evenness as pertains when the main winding is laid, so that the highly desirable smooth and substantially cylindrical contour of the primary winding is attained. Inasmuch as crowding and piling up of the yarn tends to breakage during the weaving operation such objection is thereby overcome and no variation in the yarn is necessary throughout the winding operation.

I have embodied herein the means shown in my patent for effecting gradually increasing traverse during the formation of the primary winding, and in connection therewith I. have provided novel means to effect the reciprocation of the ring-rail at maximum speed at the beginning, the speed being gradually decreased as the formation of the primary winding progresses. Vhen such winding is completed the speed of the ring-rail has attained its minimum. and the secondary or main winding is laid at such minimum speed, while the traverse is uniform or constant during such winding. Thus in my present invention the traverse gradually increasing from minimum to maximum, and ring-rail speed increasing gradually from maximum to minimum, cooperate to build the primary winding with smooth and even turns of the yarn in the several layers without crowding, and as there is no tendency to pile up the yarn at the ends of the primary winding the gradual taper thereat is effected by means of a uniform gain.

The various novel features of my invention will be fully described in the subjoined specification and particularly pointed out in the following claims.

Figure 1 is a front elevation of a portion of a spinning-frame having one embodiment of my present invention applied thereto, the apparatus being shown in readiness to be gin the winding of a set of bobbins; Fig. 2 is a transverse sectional view taken on the line 22, Fig. 1, looking toward the left and partly broken out; Fig. 3 is a top plan view of the speed-changing means governing the speed of the ring-rail; Fig. 4 is a front elevation of the beltshifter illustrated in Figs. 2 and 3, the speed-cones being omitted; Fig. 5 is a transverse section of the belt-shifter, on the line 55, Fig. 4, looking toward the left; Fig. 6 is a side elevation of the builder-motion shown in Fig. 1 but detached from the other parts of the apparatus; Fig. 7 is a side elevation of a bobbin with a small portion of yarn wound thereon, shortly after the beginning ofthe primary winding, the completed or full bobbin being'indicated by dotted lines.

The spindle-rail 1 provided with usual rotatable spindles for the bobbins 2, the vertically reciprocating ring-rail 3 in practice provided with rings 4, the lifter rods, as 5, rocker 6 having a lifting weight 7 to elevate the ring-rail, the rocker-arm 8 and link 9, and the branch 10 of arm 8, are all of usual construction and operate in well known manner. A flexible connection or chain 11 attached to the branch 10 passes over the guide-sheave 12, Figs. 1 and 2, and thence to the winding drum of the builder-motion, the latter herein comprehending the levers 13, 18, the former fulcrumed at 14, and having an extension 15 and a roller or other stud 16, at opposite. sides of the fixed fulcrum, the roller constituting a follower to cotiperate with the actuator, shown in Fig. 2 as a four-point traverse-cam, substantially as in my patent referred to, the weight W holding'the follower against the'cam. So,

too, the lever or member 18, having a fixed fulcrum 19 behind the fulcrum 14 and substantially in the same plane, is as set forth in my patent. stant stroke, as will be manifest, while the member 18 hasa variable stroke, the weight The member 13 has a con- 7 lifting its free end while it is depressed by the member 13 as it descends. The pickshaft 26, pick-wheel 28 and worm 31 fast thereon, the worm-gear 32, Fig. 1, driven by said worm and having fixedly connected with it the drum 33 of the winding mechanism mounted at 34 011 the member 18, the chain 11 passing around the drum and being gradually let off therefrom as the winding proceeds; the mutilated gear 35 on the drum and cooperating withthe rack-bar 36, pivotally connected with the link 39 fulcrumed at 40 on the member 18; the roll-carrier 43 connected with the upper end of the link, ann provided with the rolls 45, 46, the latter cooperating with the under side of the member 13, and the roll 45 bearing on the rest 47 mounted on the member 18, are in general as in my patent, except that here in the extension of the free end of the member 13 is omitted and the upper end of the link 39 is prolonged, at a, for a purpose to be described, said prolongation having a series of holes 64 therein. lVhile the stroke of the member 18 increases gradually in amplitude it will be observed that said member rises to practically the same point on each up-stroke, owing to the nearly horizontal position of the rest 47 when the member 18 is at the upper end of its stroke, and I have herein caused the means for actuat ing the pick-wheel to be controlled by the member 18 and actuated on the up stroke thereof.

Referring to Figs. 1 and 2, the pick-pawl 27' is attached to the lower end of a rod 25 depending from and passing through a hole in a part of the side rail of the main frame, the rod being screw-threaded to receive col lars or nuts 23, 24, screwed onto the rod above and below the rail, respectively, by means of which the vertical position of the pawl can be adjusted. Oneach up-stroke of the member 18- the pick-wheel 28' is brought into engagemept with the pawl 27 and is partly turned or angularly advanced, the resilience of the rod or. pawl-carrier 25 permitting the slight lateral movement of the pawl when it is engaging and turning the pick-wheel, and as the angular advances thereof are uniform, for the reasons above stated, the step by step rotation of the pickshaft 26 and the parts actuated thereby will be uniform in character. Consequently the letting off of the chain 11 from the drum 33 will be by equal amounts and the resultant gain of the traverse will be constant from beginning to end of the entire winding operation.

The rotation of the shaft 26 operated through the mutilated gear 35 and rack-bar 36- to swing forward the link 39 from the position shown in Figs. 2 and 6, and thereby the rolls 45, 46 will be moved away from the fulcrum 14, so that while the stroke of the member 13 of the builder-motion is constant. the oscillating movement imparted to the member 18 will gradually increase in amplitude as the rolls move toward the free ends of the members 13, 18 and the traverse of the ring-rail will be gradually increased, as in my patent above referred to. Thus the primary winding of yarn is begun with the minimum traverse, and the traverse is gradually increased up to the point at which the mutilated gear no longer advances the 'ack-bar 36, the link 39 ceasing its swinging movement on its fulcrum 40 at the same time, and thereafter the traverse is uniform, the secondary or main winding being laid therewith. The gradual and desired taper at the ends of the primary winding of yarn, is properly formed by the gain of the traverse, which at the beginning of such Winding has a length of about five-eighths of an inch and works up to the full length, say about one and five-eighths of an inch, by the time the primary winding is completed.

I will now describe the means by which the yarn is laid evenly without crowding during the primary winding.

Referring to Fig. 2 the shaft of the usual spindle-driving cylinder it operates through the train of gearing A, A A to drive the large intermeshing gears 13, B, the latter in practice being suitably connected with the drawing rolls, (not shown) as is usual in apparatus of this character, such gearing be ing contained within the inclosed end A of the frame. The shaft of one of the gears 13 is provided with a sprocket C, connected by a sprocket-chain D with a larger sprocket E fast on one end of a horizontal shaft- F extended longitudinally of the main frame, a parallel shaft G being arranged near it, said shafts being below and at one side of the cylinder A and outof the way of the usual spindle-driving bands. Opposed speed cones F, G are mounted on these two shafts and connected by a belt H which is arranged to be shifted longitudinally to thereby vary the speed of the shaft G, as it will be manifest that the shaft F is rotated at a constant speed.

When the belt is near the larger end of the driving cone F Figs. 1 and 2, it cooperates with the smaller end of the driven cone Gr and consequently the latter will be driven at a higher speed, whereas shifting of said belt to the left, Fig. 1, will effect a gradual reduction in the speed of the driven cone and its shaft G. Such belt shifting is effected automatically as will be described, during the formation of the primary winding of yarn. A. pinion K fast on shaft G meshes with a larger gear L, see dotted lines Fig. 2, having an attached pinion H in mesh with a large gear N fast on the shaft of the actuator or traverse-cam 17, and it will now be understood that the speed of rotation of such cam will be governed by the speed-changing means just: described, the revolutions of the cam increasing or decreasing in speed as the speed of the cone G" rises or falls. The trains of gears referred to, and the sprockets and connecting sprocket-chain, are inclosed within the frame end A". A belt-shifter it", provided with forks f, 1*, is longitudinally slidable upon fixed guide-rods h, 71 suitably sustained at their ends by the main frame between the cones, a weight it connected by a chain If with the belt--shifter effecting movement thereof to the right, Fi 's. 1 and 3, said chain passing over a guid e-sheave h. The movement of the belt-shifter in the opposite direction, or to the left, Figs. 1 and 3, is etl'eeted automatically by means of the chain or other flexible connection it" attached at its opposite ends to the belt-shifte and the link-cxtensi0n a, respectively, said connection passing around suitable guide-sheaves it, It, shown clearly in Fig. 3. By hooking the chain it" into a lower or an upper one of the holes a in the extension a the primary winding will be started with a somcwhat lower or higher speed, respectively, the position of the link-extension at the time the primary winding is begun being shown in Fig. 9 very clearly. It will be obvious that at such time the traverse-cam 17 will be rotated at its maximum speed, because the belt II is at the larger end of the driving cone F and therefore the speed of the ringrail will be at its maximum when the traverse is at its minimum, the speed of the rail then causing the yarn to be laid smoothly and evenly, with the adjacent turns of yarn in a layer laid side by side, withoutcrowding or piling up. As the movement of the link 39 on its pivot 10 serves to gradually increase the traverse such movement also acts, through the connection It, to gradually move the belt-shifter M and thereby shift the belt ll along the cones so that the speed of the ring-rail slightly decreases to accommodate the lengthened traverse. Thus each layer or wrap of yarn in the primary winding will be laid smoothly and evenly, and when the traverse reaches its maxinuun the speed of the rail will have attained its minimum and there will be no further shifting of the belt ll during the formation of the secondary or main winding. That is as it should be, for as the traverse is then uniform the speed of the ringrail should be uniforn'i, to correspond, and the layers of yarn are laid smoothly during the formation of the main winding. The entire yarn-mass is thus built up by successive layers of smoothly and evenly laid yarn, so that in the weaving operation the yarn will draw oil" freely without any tendency to catch or break when the primary winding is approached. As the rail-speed is made to properly conform to the length of the traverse the uniform gain throughout the entire wlnding operation takes care of the shaping of the yarn-mass, the completed modifications may be made by those skilled in the art without departing from the spirit and scope of my invention asset forth in the claims annexed hereto.

Having fully described my invention, what I claim as new and desire to secure by Letters Patent is 1. In apparatus of the class described, a builder-motion including a member having a constant stroke and a member having a variable stroke, an actuator cooperating with one of said members to effect oscillation of both the said members, a reciprocating ring-rail, a connection between it and the builder-motion, means cooperating with the two members thereof and acting through said connection to effect reciprocation of the ring-rail with a gradually increasing traverse to a predetermined point, and thereafter to continue automatically the reciprocation of the ring-rail with a uniform traverse, and mechanism to drive said actuator at a speed gradually decreasing from maximum to minimum during the period of increasing traverse.

2. In apparatus of the class described, a builder-motion including a member having a constant stroke and a member having a variable stroke, a reciprocating ring-rail, a single connection between it and the said member having a variable stroke, means whereby the first-named member acts, through its fellow member and through said connection, to efieot reciprocation of the ring-rail with a traverse gradually increasing to a predetermined maximum, and thereafter to continue automatically such reciprocation with a uniform traverse, and an instrumentality to gradually reduce the speed of the ring-rail from maximum to minimum during the period of increasing traverse. v

3. In apparatus of the class described, means to effect the winding of yarn upon a yarn-receiver with a traverse gradually in creasing from minimum to maximum and to complete the winding with the maximum traverse, and means to control the speed of the traverse and gradually decrease it from maximum to minimum and continue the speed at the minimum during the period of maximum traverse.

I. In apparatus of the class described, a buildermotion including an oscillating member having a variable stroke, means to gradually increase the amplitude of its stroke to a predetermined maximum, a reciprocating ring-rail operatively connected with said member and by it reciprocated with a gradually increasing traverse to the maximum, and a variable speed actuating instrumentality for the builder-motion, governed by the member of the latter having a variable stroke, to act through the builder motion and decrease the speed of the ringrail as the traverse increases.

5. In apparatus of the class described, a builder-motion, a rotatable actuator therefor, a reciprocating ring-rail, means operatively connecting it with the builder-motion, and through said builder-motion reciprocating the ring-rail first with a gradually increasing traverse and thereafter with a uniform traverse, and an instrumentality governed by said builder-motion to rotate the actuator at a variable speed and acting through the builder-motion to gradually and automatically diminish the speed of the ring-rail from maximum to minimum during the gradual increase of the traverse from minimum to maximum.

6. In apparatus of the class described a builder-motion including two oscillating, separately fulcrumed members, an actuator to oscillate one member with a constant stroke, means to effect oscillation of the other member with a stroke gradually increasing up to a predetermined maximum, a reciprocating ring-rail, a connection between it and the member having the variable stroke, automatically operated mechanism to control said means and cause the latter to effect the increase in the stroke of the second-named member, said mechanism imparting a substantially uniform gain to the traverse, and an instrumentality controlling the actuator and through it gradually decreasing the speed of the ring-rail to a predetermined minimum.

7. In apparatus of the class described a compound builder-motion including two separately fulcrumed members, an actuator to oscillate one of said members with a constant stroke, speed changing mechanism operatively connected with and to govern the speed of the actuator, shiftalole means cooperating with said rocking members whereby the second of said members is oscillated with a gradually increasing stroke up to a predetermined maximum, a reciprocating ring-rail connected with said member hav ing the variable stroke whereby the ringrail is reciprocated with a traverse gradually increasing to a maximum, and a controlling connection between said shiftable means and the speed changing mechanism to act through the latter and cause the speed of the actuator, and hence the speed of the ring rail, to gradually diminish while the traverse increases.

8. In apparatus of the class described, means, including a reciprocating ring-rail to effect the winding of yarn upon a yarn-receiver with a traverse gradually increasing from minimum to maximum and to complete the winding with the maximum traverse, means to cause the ring-rail to travel at a speed varying in an inverse ratio to the variation in the length of the traverse.

9. In apparatus of the class described, means, including a builder-motion and a reciprocating ring-rail to effect automatically the winding of yarn upon a yarn-receiver with the gradually increasing traverse to a predetermined maximum, and thereafter to complete the winding with such maximum traverse, an actuator for said means, cooperating with the builder-motion, and means to gradually and automatically reduce the speed of the actuator and thereby the speed of the ring-rail during the period of gradually increasing traverse, and thereafter to maintain the speed of the ring-rail constant.

10. In apparatus of the class described, means, including a reciprocating ring-rail to effect the winding of yarn upon a yarnreceiver with a traverse gradually and uniformly increasing from minimum to maximum to complete the winding with such maximum traverse, means to impart a substantially uniform gain to the traverse throughout the winding, and mechanism to gradually change the speed of the ring-rail from maximum to minimum during the gradually increasing traverse, and an instrumentality to govern automatically the change from minimum to maximum traverse and contemporaneously therewith to control the varying speed of the ring-rail.

11. In apparatus of the class described in combination, a builder-motion including an oscillating member, an actuating device to impart a constant stroke thereto, means actuated by said member to effect automatically the formation of two successive windings of yarn upon a yarn-receiver, the first winding being laid with a gradually increasing traverse and with a gradual decrease in the speed of the ringq-ail, the second winding being laid with a uniform traverse and with a uniform speed of the ring-rail, and an instrumentality cooperating with said actuating device to control the variation in the speed of the ring-rail.

12. In apparatus of the class described, in combination, a builder-motion including an oscillating member having a constant stroke,

two different means to effect, respectively, the formation of a winding of yarn upon a yarn-receiver with a traverse gradually increasing from minimum to maximum, and to gradually decrease the speed of the traverse from maximum to inininuun, one of said means being directly actuated by or through said oscillating member, and the other of said means effecting the oscillation of said member, and a controlling connection between said separate means whereby the operation of one is governed by or through the operation of the other.

12-3. In apparatus of the class described, a builder-motion including an oscillating member having a constant stroke, and means actuated by said member to effect automatically the formation of two successive windings of yarn upon a yz'trna'eceiver, the first winding with a gradually increasing traverse, combined with automatic means to gradually decrease the speed of the t 'averse during the first winding and to maintain the speed uniform during the second winding.

14;. In apparatus of the class described, a builder-motion including an oscillating member having a constant stroke, and means actuated by said member to effect automatically the formation of two successive windings of yarn upon a yarn-receiver, the first winding with a gradually increasing traverse, said means including a traverse-shifting device to determine the rate of such i11- crease, combined with variable speed mechanism to actuate said oscillating member and decrease the speed of the traverse as the traverse increases, and controlling means for the speed changing mechanism governed by the traverse-shifting device.

15. In apparatus of the class described, a buildermotion including an oscillating member having a constant stroke, and a second oscillating member having a variable stroke, and shiftable means intermediate said members to effect a gradual increase in the stroke of the second-named member up to a predetermined maximum, and thereafter to effect the oscillation of said member with a uniform stroke, a ring-rail operatively connected with and reciprocated by said latter member with first a gradually increasing, and then a uniform, traverse, combined with a device to govern the operation of said shiftable means, and mechanism controlled by said shiftable means and acting through the builder-motion to gradually reduce the speed of the ring-rail as its traverse increases and to maintain the speed of the ring-rail uniform when the traverse is uniform.

16. The combination with a reciprocating ring-rail and a builder-motion including two oscillating members one of which has a constant stroke and an actuating cam to impart such constant stroke, of a connection between the other member and the ring-rail to control the movement of the latter, meansthe speed of the ringrail during such period of increasing traverse.

17. The combination with a reciprocating ring-rail, a builderunotion including two oscillating members, and a connect-ion between one of said members and the ringrail, of means whereby said members are oscillated with a' differential movement gradually decreasing from a maximum to a minimum, the member connected with the ring-rail thereafter being oscillated with a uniform stroke, and an instrumentality controlled by the variation in the length of the traverse to begin the reciprocation of the ring-rail at maximum speed and to gradually diminish such speed until the traverse attains its maximum.

18. The combination, with a reciprocating ringrail, of a builder-motion, an actuating cam therefor, and a connection between the builder-motion and the ringrail, of means carried by the builder-motion to impart to the ring-rail first a gradually increasing traverse up' to a predetermined maximum and thereafter a traverse of uniform length, an instrumentality to rotate the actuating cam at a speed decreasing gradually from maximum to minimum while the traverse is increasing in length and means to control automatically the variable speed of the actuating cam.

19. In apparatus of the class described means to effect the winding of yarn upon a yarn-receiver with a traverse gradually increasing from minimum to maximum and to complete the winding with a maximum traverse, means to decrease gradually the speed of the traverse from maximum to minimum during theperiod of gradually increasing traverse, and means to vary the initial speed of the traverse at the beginning of the winding of yarn.

20. In apparatus of the class described, a builder-motion including an oscillating member having a constant stroke andmeans actuated by said member to effect automatically the formation of two successive windings of yarn upon a yarn-receiver, the first winding with a gradually increasing traverse, combined with means to gradually decrease the speed of the traverse during the first winding, and to maintain the speed uniform during the second winding, and a manually adjustable device to increase or decrease the initial speed of the traverse at the beginning of the first winding.

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

ALONZO E. RHOADES.

Witnesses G. L. BELL, E. D. Oseoon.

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