US1087368A - Winding-machine. - Google Patents

Description

A. I. HARVEY & W. MARGROFT.

WINDING MACHINE.

APPLICATION FILED JULYSI, 1912.

TOiYES i Patented Feb. 17, 1914.

a SHEETS-SHEET 1.

A. I. HARVEY & W. MARGROFT.

WINDING MACHINE.

APPLICATION FILED JULYSI, 1912 Patented Feb. 17, 1914.

3 SHEETS-SHEET 2.

Wnuzsses 4. (7 /6 -ACBW A. I. HARVEY & W. MAROROPT.

WINDING MACHINE.

APPLIOATION FILED JULY 31, 1912.

1,087,368, Patented Feb. 17, 1914.

3 SHEETS-SHEET 3.

WITNESSES fifm 6403M.

UNITED STATES PATENT OFFICE.

ARTHUR I.'HARVE Y, OF PROVIDENCE, AND WILLIAM MARCROFT, OF CRANS'ION,

RHODE ISLAND, ASSIGNORS, TO UNIVERSAL WINDING COMPANY, 0]? PORT- LAND, MAINE, CORPORATION OF Specification of Letters Patent.

MAINE.

Patented Feb. 17, 1914.

Application filed July 81, 1912. Serial No. 712,490.

To all whom it may concern Be it known that we, ARTHUR I. Hamnr and W'JLLIAM MARoRoFr, citizens of the United States, residing at- Providence and Cranston, respectively, in the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in Winding-Machines, of which the following is a. specification.

Our invention relates to winding machines for winding yarn and thread into, cops or bobbins for use in loom shuttles and consists particularly of improvements in the bunchbuilding mechanism therefor.

The object of our invention is to simplify and improve the structural details of the mechanism shown and described in our pending application for patent, Serial No. 707 ,824, filed July 5, 1912, and to render the device adjustable to regulate the length of yarn. wound into the bunch In the application referred to we have described a device adapted'to operate in connection with a usual form of winding machine to automatically control the traverse of the thread-guide at the commencement of each bobbin so that several layers of yarn are wound with a relatively short traverse. By this means a short section of yarn is wound on the naked bobbin or tube at the beginning I of the winding'to form what is technically termed a bunch. The bunch cooperates with the feeler-mechanism of the loom to actuate the fillin -replenishing device when the yarn in the bobbin becomes nearly exhausted.

The invention is fully described in the following specification, illustrated by the accompanying drawings, in which Figure 1 is a longitudinal elevation of a winding machine, showing our new device applied thereto, the main frame of the machine being illustrated in section to disclose the mechanism contained therein; Fig. 2, a plan view of the same; Figs. 3 and 4, enlarged detail views of the stopping mechanism of the machine Figs. 5, 6, and 7, detail views of parts of the bunch-building device; Figs. 8, 9, 10 and 11, enlarged views of the assembled bunch-building mechanism with the parts shown in the difi'erent positions which they assume during successive stages of their operation.

Our invention is shown as applied to a machine of the same general type as that described in U. S. Patents Nos. 940,489 and 9 L6,831,'granted Nov. 16, 1909, and Jan. 18, 1910, respectively, to S. W. Vardwell.

The basic machine consists essentially of a rotating winding-spindle B and a reciprocating traverse-bar O, the latter arranged opposite the spindle, and adapted to carry the thread-guide G, which, besides its movement with the bar, is fed progressively outward thereon to build the cop in superimposed conical layers. The. winding-spindle B is mounted in a bearing ain the main frame A of the machine and is rotated from the main driving-shaft E by means of skewgears e, e. The traverse-bar C slides in-a quill-shaped bearing a, which has an extension a extending through a bore in the side of the frame A, and is reciprocated from a rocker-arm F mounted. on the continuously-oscillated shaft D. Our new traversecontrolli..g device" operates directly in connection with the arm F and is arranged to automatically adjust the point of connection of thetraverse-barC with the arm to vary the operative length of the latter and regl late the length of traverse of the threadguide as more fully explained hereinafter.

The traverse-bar C is preferably constructed in two parts Cand C the main portion C sliding in the bearing a, as before explained, and the extension 0 connected thereto at its outer end by a pin-andslot coupling 0. The outer end of the extension C is mounted in a bushing c which is swiveled in an outboard bearin j supported on a bracket J extending rom the frame A The coupling 0 allows the inner end of the extension C to swing inward from the plane of the axis tion C of the bar, as shown in Fig. 2, while the outer end of the 'bar swings in the swiveled bushing c. This arrangement is the same as that described in U. S. Patent 940,489, above referred to, and provides that the contact means carried on the traversebar, and arranged to feed the thread-guide along the winding-spindle, shall contact with the first layers of yarn wound on. the bobbin 4v before the base of the cop isbuilt up to its maximum diameter. The progress1on or contact-mechanism is arranged as of the main porproximately half way around its circumferonce and a spring h is secured to the guideholder 9 with its end bearing on a flange It of the nut h. 'The spring h acts to normally press the nut it into position to engage its threads with the threads 0 on the bar C but the bore of the nut is of suficient diameter to allow its threads to pass over those on the bar when the nut is pressed in the opposite direction against the. force of the spring. It will be seen that while the machine is operating the nut It is engaged with the threads on the barC so that the turning of the wheel H will feed the threadguide along the winding-spindle but by releasing the nut from engagement with the threads on the bar the guide can be slid back to adjust it in position to begin the winding of a new bobbin.

Mounted on the end of the bar 0 is a former K, so termed because it acts to direct the movement of the contact-wheel H away from the winding-spindle during the building of the base or heel of the bobbin and therefore determines the form of the latter. The former K has an arm is arranged with its edge at an angle to the axis of the winding-spindle, and by adjusting the arm at different angles the taper of the base of the bobbin can be regulated. Adapted to bear on the edge 70' of the arm 70 is a follower-arm 9 extending rearwardly from the thread-guide holder 9. Sliding in a bore at the inner end of the bar C is a spring-pressed plunger 0, adapted to bear against the inclined face a of the couplingplate 0 and tending to normally hold the bar C inposition to aline its axis with that of the bar C. The swinging movement of the bar C is limited by its pin 0 sliding in the slot 0 of the plate 0 and when the follower g bears on the rearward end of the former-arm 70 the end of the bar is held with the pin at the inner end of the slot as shown in Fig. 2. This provides that the contact-wheel H will be maintained in close proximity to the surface of the bobbin or cop-tube at the beginning of the winding so that its periphery will contact with the first layers of yarn wound on the latter at the rearwardend of each stroke of the threadguide. The contact of the wheel with the surface of the yarn, during the rotation of secured in place by the screw Z oeaeea the winding-spindle,- acts to turn the wheel to feed the thread-guide outward along the spindle in the manner now well known to those versed in the art... As the thread-guide feeds outward along the traverse-bar C the follower-arm 9 slides along the incline of the arm is and allows the contact-wheel to recede from the axis of the winding-spindle in accordance with the growth in diameter of the winding. As the follower 9 reaches the end of the arm is the base of the bobbin or cop attains its maximum diameter'and the bar C assumes a position in alinement with the bar C. Henceforth the two sections C and Q of the traverse-bar C are reciprocated in the same plane, as one continuous bar, and the contact-wheel H engages the bobbin at the rearward end of each reciprocation at a pointon the base of its forward conical end.

In this way the bobbin grows by longitudinal extension, the conical layers forming a substantially cylindrical body terminating in the tapered delivery end or nose.

The stopping-mechanism of the machine for arresting .the rotation of the winding spindle and the reciprocation of the threadguide consists essentially of a rockable bridge-member L which is pivoted on suitable bearings in the frame A and extends across and above the shafts E and D. The inner end of the member L is mounted on a rod 1 secured in the inner 'side, of the frame A and the outer end is formed with a socket Z which receives the end of an extension L The extension L reaches through a bearing in the outer side of the frame A, and secured in a bore at its end is a rodM held by the setscrew m. The opposite end of the rod M passes through a bearing on in the bracket J and is bent down to form a handle M.

The skew-gear e which is driven from the gear 6 is mounted free to turn on the winding-spindle B and is connected rotatively therewith by means of a clutch-member N, see Figs. 1 and 2.- The clutch-member N is keyed rotatively with the spindle, but is free to slide thereon to carry' its tapered face n into and out of engagement with the corresponding face a of the gear e. A coiled spring at bearing against a collar 11? tends to normally maintain the clutch-member N in engagement with the gear 6 so that the winding-spindle is driven therefrom; and the. clutch-member is released from the gear 6 to arrest the rotation of the spindle by means of a lever 1 The lever Z is preferably formed as a part of the bridge-member L and extends upwardly therefrom with its end adapted to a...

free on the shaftD and connected therewith by a clutch-block O secured on the shaft by a bolt 0. Preferably, the hub f is provided with a key or spline f adapted to engage a corresponding slot 0 inthe face of the block 0 and acoiled spring 0 bearing against a collar 0 tends to normally hold the hub f in engagement with the clutch-block. The hub f is disengaged from the block 0 by means of the bridge-member L which is formed with an overhanging portion Z* having a face Z adapted to engage with a tapered projection f on the end of the hub f to slide the hub against the action of the spring 0 see Fig. A double-ended spring Z, see Figs. 2 and 4, is secured to the top of the member L with its free ends F, l" reaching down adjacent the sides of the projection f on the hub f of the arm F. prevent excessive rocking movement of the arm F after its disengagement from the clutch-block O and serve to hold the arm in such relation to the clutch-block as to insure the spline f being engaged with the slot 0 upon the release of the hub from the member L.

Referring now to Figs. 8, 9, 10 and 11, the arm F is formed with a curved slot f extending from its upper end to a point adjacent its hub f. Connected to the main portion C of the traverse-bar C by a pin a is a link P carrying a stud p at its opposite end adapted to engage the slot f By sliding the stud 72 down in the slot f the operative effect of the arm F may be varied to shorten the extent of traverse imparted to the traverse-bar C and through the latter to the thread-guide G. At the commencement of the winding of a bobbin the stud is held at the lower end of the slot f and will therefore move through an arc of relatively short radius when the arm F is oscillated, so that the thread-guide is reciprocated with a relatively short traverse to build the bunch on the bobbin. When the bunch has been built up to the required diameter, or, more properly speaking, when a sufficient length of yarn has been wound into the bunch, the stud p is shifted to the upper endof the slot f and the traversebar C will then be reciprocated with the maximum extent of traverse to wind the full layers which form the main portion of the bobbin.

In our previously filed application, before referred to, the arm F is illustrated as formed in one piece with its hub f. In the present embodiment of the invention we have preferred to construct the arm F separate from its hub so that it may be detached therefrom for the purpose now explained: It will be seen by reference to the drawings that all of the parts of the traverse-controlling or bunch-building .device are carried The ends of the spring Z act to on the arm F and therefore the whole mechanism can be removed from the machine by simply taking the arm ofi of its hub. In the previously described arrangement it is necessary to withdraw the rock-shaft D from the hub f in order to remove the arm F from the machine and this requires taking down a-considerable part of the mechanism and entails a considerable amount of labor. This is particularly true when the machines are arranged in series, as is usual, with a large number of units or heads hav ing one common rocker-shaft to operate all of their traverse-mechanisms. Sometimes it becomes necessary to adjust or repair a part of the bunch-building mechanism and the most convenient method of doing this is to remove the complete device. This is easily accomplished with the present arrangement of the detachable arm F and, furthermore, another advantage is gained thereby because the mechanism of the ma chine can be made interchangeable for performing different varieties of winding.- For the ordinary method of winding bobbins without first building up the bunch a simple rocker-arm, similar to that shown in the previous patents to S. W. W'ardwell, Nos. 940,489 and 946,831, of Nov. 16, 1909, and Jan. 18, 1910, might be employed and should it be required to adapt the machine for bunch-winding the plain arm can be removed and the present device substituted therefor. Any suitable method of attaching the arm F might be employed, but we have preferred to illustrate it as formed with an arcuate flange f fitted to the periphery of the hub f and secured in place by the screws S 8 f "I he bunch-building mechanism is arranged as follows: Pivoted on a screw 1' at the top of the arm F is a sector R which extends downward to a point adjacent the hub f. The sector R is preferably constructed of sheet-metal and formed with an arcuate slot 7' arranged concentric with the axis of its pivot r. Its lower edge is formed with a series of ratchet teeth 4. The slot- 1" is positioned to register with the bottom of the slot f of the arm F and is adapted to engage with the stud p, secured in the end of the link P, when the stud is in its lowermost position. By moving the sector into the position shown in Fig. 10 the stud p is held at the bottom of the slot f to adapt the arm F to reciprocate the traverse-bar C with a relatively short traverse; and by swinging the sector R on its pivot in the direction indicated by the arrow 2 the stud p is released so that it can be shifted to the upper end of the arm F, as shown in 'ig. 8, to provide for the maximum throw ,or traverse of the traverse-bar. A spring S, see Fig. 9, preferably formed of wire bent in a helical coil at s, is secured at one end to the top of the arm F by a screw 8'. The lower end of the spring S is bent at right-angles and hooks through one of a series of holes r r arranged in an arc concentric to the axis of the sector, so that the spring has a tendency to swing the sector in the direction opposite to that indicated by the arrow 2. The range of movement of the sector R'is limited by the end of the spring striking the side of the arm F and therefore its extent of movement the holes 1', T for a purpose as fully explained hereinafter. The sector R is n0rmally restrained from movement under the action of the spring S by a pawl T, the toe of which engages with the-teeth 1 see Fig. 8. The pawl T is pivoted on a stud I? screwed into the arm F and is formed with an ofiset tail-piece or arm t, see also Fig. 3. The end of the arm 25 is rounded oil on one side, as shown most clearly in Fig. 9, and this rounded edge is adapted to be engaged by the end of the link P as the stud ;0 slides down in the slot f Such engagement will swing the pawl T to release its end from theteeth r and allow the sect-or to swing under the action of its spring S to engage the slot 1" with the stud 72. Itis to be noted, however, that this engagement can take place only when the hub f of the arm F is slid back from the clutch-block 0 into the position illustrated in Fig. 3. lVhen the machine is operating and the hub f is engaged with the clutchblock 0 the link P lies against the face of the arm F, as indicated by the dotted lines in Fig. 3, so that normally, the end of the link clears the offset arm t. This provides that when the stud 79 is at the bottom of the slot f during the first stages of the winding. the end of the link will ride past and in back of the arm T without releasing the pawl T when the arm F oscillates.

The pawl T is normally maintained in engag r nent with the teeth 7 on the sector It by a spring U fastened to a standard V mounted on the flang-- f of the arm F. The standard V is preferably constructed of sheet-metal and formed with a foot 41 secured to the flange f by a screw 0. The spring U is constructed of flat, spring-metal split into two branches at and u, as shown in Fig. 7, and secured in place by a screw 11. extending through its upper end. The end of the branch/u, engages the offset shoulder of the arm t of the pawl T, while the branch u engages another element of the mechanism later described.

The sector R is swung in the direction indicated by the arrow 2, to release the stud p, by the intermittent action of the pawl W actuated from the oscillating motion of the arm F, see Figs. Sand 11. The pawl VV is pivoted at the lower end of an elbow-shaped member 4, shown in detail in Fig. 6, which,

in turn, is pivotally mounted on the standard V by means of the screw 5. The member 4 is preferably constructed of sheet-metal and the extremity of its lower arm 6 is bent outward to form a. shoulder or abutment 7 see.

Figs. 5 and 6, which serves as a stop to engage one side of the standardV. The lower end of the branch u of the-spring U engages the outer side of the abutment 7 to normally maintain it against the side of the standard V with the member 4.- in the position illustrated in Fig. 8.

The pawl W is pivoted on a stud 'w. screwed into the member 4 as shown more particularly in Fig. 5. The toe w of the pawl is ofis'et from its main portion and lies directly under the teeth 7' on the sector R with which it is adapted to engage. Bent forward from the main portion of the pawl is a finger 10 which overlaps the edge of the member 4 and is adapted to engage therewith to limit the downward movement of the toe 'w'. A wire spring 8 is bent around the stud 10 with its end extending up over the back of the finger Q0 and, preferably, a groove 103 is formed on the edge of the finger to retain the spring in place.

The spring 8 is held from turning on the stud w by a nut 10* set up against a washer 10 which binds the spring against the member 4. Extending rearwardly from the pawl V is an arm 10 having its end bent inward at w", as shown in Fig. 5. The spring 8 tends to normally maintain the pawl in the position illustrated in Fig. f3 with its toe w just clear of the teeth 7 of the sector R. With the pawl W in this position the end of the arm 'w'is raised to adapt it to be engaged by the lower edge of the link P whenthe arm F is rocked into its rearward position as illustrated in Fig. 11. This engagement takes place only when the stud p is at the bottom of the slot f in the arm F, but during this time the arm '10 will be engaged at each rearward oscillation of the arm F. The engagement of the link P with the arm w rocks the pawl \V to carry its toe w into engagement with the teeth 1 and the movement of the pawl is then continned forward to swing the member 4 on its pivot so that the sector R is swun in the direction indicated by the arrow 5 to shift it one tooth on the holding pawl T, as more fully explained hereinafter.

Referring to Fig. 8, the arm F has a transverse counterbore at f with a smaller bore f at its end, reaching into the slot f Mounted in the bore f is a plunger 9 formed with a head 10 which slides in the counterbore 7. A, spring 11, retained in the counter-bore by a screw 12, engages the head 10 to force the end of the plunger into the slot i as shown more plainly in Fig. 9. Referring again to Fig. 8, the end of the upper end of the slot f and the pressure 0 the spring 11 tends to hold the plunger in 7 position to retain the stud at the end of ,the

slot against the normal thruston the link JP.

Secured at one end to the top of the standard V is a flat, sheet-metalspring 13 held in place by the screw 14. The spring 13 is bent downward in a U-shaped 1100 with its free end 15 reaching up ad acent t e end of the traverse-bar C. Thespring 13 is adapted to engage the end of the bar .Cat each forward oscillation of the arm F and when the stud p is released from the sector B it acts to push the bar-forward to carry the stud to the upper end of the slot f as more fully explained hereinafter.

Referring to Fig. 3, it will be noted that the overhanging portion Z of the bridgemember L, which engages the projection f on the rear end of the hub f, has a pin .1 extending outward over the projection. The pin Z is adapted to engage with a depression or groove f in the top of the projection f when the arm F is rocked into its forward position, see Fig. 4. The engagement of the pin Z with the groove f takes place only when the arm F is disconnected from the clutch-block O, as shown in Fig. 3. That is to say, during the operation of the machine the bridge-member L is in such position that its, overhanging portion l is raised free of the projection f on the hub f, as shown by dotted lines in Fig. 3, and consequently the pin Z is out of range of the groove f in the top of the projection. When the bridge-member L is rocked to stop .the machine its overhanging portion 8* is brought down into engagement with the beveled edge of the projection F, as shown by full lines in Figs. 3 and 4, and previously described, and the pin .Z is carried into position to engage the groove f. The object of this engagement is to hold the arm F at the forward end of its stroke so that the traverse-controlling mechanism may be set in its initial posit-ion to start the winding of the bunch, as more fully described hereinafter. It is also to benoted that it is not necessary for the arm F to be in its forward position when the portion Z" of the member'L rocks downward inorder to effect thisengagement of the pin Z with the groove f Should the movement of the arm F be arrested in any position other than that at the forward end of its stroke the projection f can be swung over under the in Z by simplyn rocking the arm F forward Such movement .of' the arm is efiected manually by pulling the traverse-rod C outward through its bearing in the frame A. It will be observed from tion f? is roundedofi at f to adapt the pin Z to ride up onto the .topof the projection and the inherent sprin tendency of the pin causes it to .spr ng own into the groove f when the latter comes into alinement with t pin- The operation of the whole machine is as followsi Referring first to Figs. 1 and 2, we have here shown a wooden bobbin a; of usual form applied ,to the winding-spindle B, but other fqrmsof holders for the yarn, such as paper copetubes, for instance, might be empl yed With equal effect. Figs. 1 and 2 illustrate the machine at the beginning of the Winding and we have shown the traverse rocker-arm F at the forward end of its throw. It is obvious, however, that the machine will ,not always stop with the arm F in this position, nor is it necessary, because, before starting the winding the operator must set the bunch-building mechanism and he is instructed to perform the following operations: The first step takenis to pull the traverse-bar .C outward in the direction indicated by the arrow 3, see Fig. l, and if thearm F is in any other position than at the forward end of its stroke it will be rocked forward until the pin Z engages the groove f in the projection f of the hub f. This engagement of the pin and groove locks the arm F in its forward position, as shown in Figs. 1 and 4. The operator now pushes the traverse-bar C backward in the opposite direction and, the arm F being held from movement, the stud p on the link -P is forced down totheibottom of the slot f During the time the machine is operating to wind with the full traverseof the thread guide the sector It remains in the position illustrated in Fig. 8, being held against the action of the spring S by the ,pawl T. It will ,be noted that the upper edgeof the slot .7" of the sector R is rounded off and forms a point r projecting from the forwardedge of ,the. upper part of the sector.

with the -.sector R in the position illustrated in Fig. -.8 the point or abutment r projects part way ,across the slot f of the arm F.

Now, .as ,the stud p is pushed down in the slot f it will .ride up over the rounded edge of theabutment 7' and force the sector back into the position shown in Fig. 9. It mustbe noted, however, .that this movement. of the sector B inder-action of the stud pldoes not carry it back far enough for the'pawl '1 to engage another tooth on its lower edge, but only releases the/pawl from the tooth first engaged. This provides that as the stud p is pushed still farther down in the slot-7 and ;the endof the link P comes into contact with the arm t of the pawl T the latter will be free to be moved'by the link to its toe outof, range of the teeth T n othe wa d h PaWlT s fir t rel sed some binding engagementwar the tooth I r bythe sli ht rearward movement of the secto'rR so at itjis free to be operated by the linkP which enga s its arm 26'. The

awl T will'then be he d free of the teeth 8 the link P while the stud p passesthe a utment'rand the sector R will be swung ferent holes, as before describe and in this way the extent of movement required to release the stud from the sector can be varied to regulate the/number of reciprocations of the t read-guide with the short traverse, as

- furtherexplained hereinafter. In the draw-' ings we-have shown the spring S adjusted in the last hole, soas to provide or a maximum movement of the sector-R before the stud p is released, and consequently a relatively large number of reciprocations of the guide will take place with the short traverse and hence a comparatively long length of yarn will be wound into the bunch. The parts as last described are now the position illustrated in Fig. 10 and the bunch-building mechanism is set ready to wind the first layers of thebobbin with a short traverse. The thread-guide G is next adjusted in its rearward osition on the traverse-bar U, as shown in Fig. 2, and the yarn 3 is threaded through with itsend secured to the bobbinm.

The operation of the machine is started by turning the handle M which operates the bridge-member L to release its lever Z from the clutch-member N, it being understood that the member L is withheld from action by suitable detents, not here shown. As the clutch-member N is released itis carried into engagement with the gear a, through the action of the spring n, and the rotation of the gear imparts rotation to the winding-spindle B. Concurrently with the release of the clutch-member N, the projection 7' is also released from engagement with the member Land the hub f of the arm F slides into position to engage the clutch-block O, under the influence of the spring 0 As the slot o'--roeks into alinement with the spline-f on the hub f the two are engaged and in this manner the arm F is connected to the rocker-shaft D and'is oscillated thereby. As the hub f slides into engagement with the clutch-block O the arm at moves laterally with it and rides oif the end of the link P which comes up against the face of the arm F, assuming the pos1- tion illustrated by dotted lines in Fig. 3, and previously described. This action releases the pawl T and allows itsv toe to enmamas gage the teeth r on the sector R, under in-' ward position, illustrated in Fi 11, the

lower edge of the link P strikes t e end of the arm to of the pawl W and rocks the pawl to engage its toe with the teeth 7* on the sector B. This engagement of the link P with the arm w continues throughout a sufiicient portion of the stroke of the arm F to cause the member 4 to be swung back to move the sector B one tooth on the holding pawl T. Now, as the arm F swings back in the opposite direction the spring U acts to return the member 4 into position for the pawl W to engage the next tooth 1' backward movement of the member 4 being limited by the stop 7. In this way the sector It is shifted one tooth at each backward oscillation of the arm F until the stud p is released from the slot 1". It will be understood that as the sector It is shifted each time the holding pawl T prevents it from returning, under action of its spring S, and it is to be noted that the movement of the pawl W and the member t carries the sector slightly beyond the extent necessary for the pawl T to engage the next tooth. Referring to Fig. 9, this is provided in order that after the abutment T has passed out of range of shown in Fig. 8 with the abutment slightly overlapping the slot i The purpose of this projection of the abutment 1" across the slot f has been previously described in connection with the explanation of the preliminary this setting of the mechanism; the object being to provide for the release ofthe toe of the holding pawl T from the teeth 1' so that the pawl may be free to be moved by the end of the link P.

After the sector R is moved to the position shown in Fig. 9 the stud p is free to slide up the slot f and this is efi'ected by the pressure of the spring 13 which engages the .fore described.

Referring to Fig. 2, it will be seen that while the stud p is at the bottom of the slot the arm F will act to reciprocate the thread-guide with a comparatively short traverse to form the bunch the stud pat the the yarn-is laid wit a traverse substantially. twice .as long as illustrated by the layer 3 The number of layers or traverses of the yarn in the bunch 3 is determined by the number of oscillations required to move the sector R into position to release the stud p and'this can be varied by adjusting the spring S. As here illustrated the spring S is shown in the last hole 7' the holes correspond in number to the teeth 1' twelve strokes of the arm F must take place before the stud pis shifted. When the spring S is moved to the hole nearest the arm F only one oscillation of the arm F is required to release the stud p, but usually the mechanism is not set as close as this. Our new device provides for a wide range of adjustment, however, and can be set to wind either a very short length of yarn in the bunch or a considerable length if required. In this waythe yardage of the bunch can be 1 controlled accurately and positively for each bobbin. This is a most important feature and provides against waste which would result if the bunchbuilding mechanism were arranged to be controlled manually; The yardage required in the bunch depends upon the width of cloth to be woven from the yarn on the bobbin and it is very necessary to have a suflicient length so that come entirely exhausted in its last throw across the loom before a new bobbin is supplied. For this reason it has been the custom to provide considerable more than enough yardage in the bunch to prevent miss-picks and where the human factor is an element in determining, the proper yardage it is inevitable that considerable waste.

while with With our new device the mechanism can be set by a competent overseer to provide the proper yardage in the bunch, and all the bobbins will then be wound uniformly according to requirements. Furthermore, in our present embodiment of the invention the bunch-building device can be applied to machines now in use with but slight alteration of-their mechanism and such machines are rendered interchangeable for other methods of winding.

It is obvious that our new device might be applied to machines of different design from that here shown and described, or adapted for other arrangements of winding mechanism. For instance, the controlling-device for regulating the extent of traverse with which the yarn is wound might be arranged to operate in connection with a traversemechanism for reciprocating the windingspindle in respect to the guide instead of reciprocating the guide itself.

Various modifications might also be made in the form and structure of the parts of up er end of the slot f and asciprocated with t the shuttle will not be-' there will be our device without departing from the spirit I 1. In awinding machine, the combination with the winding-spindle, of a traverse-bar adapted to be reciprocated in the direction of its axis dle, a thread-guide on said bar, means to feed sald guide progressively along the bar durmg the reciprocation of the latter, means to reciprocate the bar with a minimum and maximum extent of traverse, controllingdevices cooperating with the reciprocating means to cause the bar to be reciprocated with the minimum-extent of traverse during a predetermined number of reciprocations, and means for adjusting the controlling-devices to determine the number of reciprocations durin which the bar is ree minimum extent of traverse.

2. In a winding machine, the combination with the winding-spindle, of a traverse-bar, a thread-guide mounted on said bar, means to cause a relativelylongitudinal reciprocation between the spindle and bar, means to feed the thread-guide progressively along the bar during the winding, controllingmeans coiiperating with the reciprocatingmeans to cause the thread-guide to lay the yarn with a relatively short extent of traverse during a predetermined number of reciprocations of the traverse-bar to build a bunch on the bobbin, and means to adjust the controlling-means to determine the number of reciprocations during which the yarn is laid with the short extent of traverse.

3. In a winding machine, the combination with the winding-spindle, of a traverse-bar adapted to be reciprocated in an axial direc-- tion with respect to said spindle, a threadguide mounted on said bar, means to feed the guide progressively along the bar during its reciprocation, means to reciprocate the bar with diiferent extents of traverse, controlling-devices cooperating with there ciprocating-means to'cause the bar to be reciprocated with a relatively short traverse, means actuated by the reciprocatingmeans after a predetermined number of reciprocations to cause the bar to be reciprocated with a longer traverse, and means adjustable to vary the number of reciprocations of the bar with the short traverse.

4. In a winding machine, the combination with the winding-spindle, of a traverse-bar adapted to be reciprocated with respect to the spindle, a thread-guide mounted on said bar, means to feed said guide progressively along the bar during its reciprocation, means to reciprocate the bar with different extents of traverse, controlling-devices cowith respect to the spinoperating with said meansto cause the bar to be reciprocated with a relatively short traverse, means actuated by the reciprocating-means at each reciprocation of the bar to operate the controlling-means after a predetermined number of reciprocations to cause the bar to be reciprocated with a longer traverse, and means adjustable to determine the number of reciprocations of the bar with the short traverse.

5. In a winding machine, the combination with the winding-spindle, of a traverse-bar adapted to be reciprocated with respect to the spindle, a thread-guide mounted on said bar, means to feed the guide progressively alon the bar during its reciprocation, an oscil ating arm for reciprocating the bar, means to cause the arm to reciprocate the bar with a relatively short traverse, means operated after a predetermined number of oscillations. of the arm to cause the latter to reciprocate the bar with a longer traverse, and means adjustable to regulate the number of reciprocations of the bar before the change in the traverse.

6. In a winding machine, the combination with the winding-spindle, of a traversebar adapted to be reciprocated with respect to the spindle, a thread-guide mounted on said bar, means to feed the guide progressively along the bar during its reciprocation, an oscillating arm for reciprocating the bar,

-meansto cause the. arm to reciprocate the.

bar with a relatively short traverse, devices operating to release said means after a predetermined number of reciprocations of the bar, means to cause the bar to be reciprocated with a longer traverse after the release of the first named means, and means adjustable to regulate the time of operation of the releasing-means. v

7. In a winding machine, the combination with the windingspindle and threadguide, of an oscillating member having a constant stroke, means on said member connected to reciprocate the guide therefrom, devices to maintain said means at a point adjacent the axis of said member to cause the guide to be reciprocated with a relatively short traverse to build a bunch at the beginning of the bobbin, devices operating at the completion of the bunch to automatically shift said means on the member to cause the guide to be reciprocated with a relatively longer traverse to wind the main portion of the bobbin, and means adjustable to regulate the number of reciprocations of the guide with the short traverse to control the length of yarn wound into the bunch.

8. In a winding machine, the combination with the winding-spindle and threadguide, of an oscillating arm for reciprocatmg the guide, means adapted to connect the as guide with the arm at difi'erent distances from the axis about which the latter oscillates, means to'retain the connecting-means at a oint relatively near the axis of the arm uring a predetermined number of reciprocations to wind a number of layers of comparatively short traverse for forming a bunch on the bobbin, means to move the connecting-means away from'the axis of the arm to cause the uide to wind the main portion of the bobbin with a longer traverse, and means adjustable to regulate the time of action of the last named means to determine the length of yarn wound into the bunch.

9. In a winding machine, the combination with the winding-spindle and thread-guide, of an oscillating arm for reciprocating the guide, means adapted to connect the guide at different points on the arm to vary the operative effect of the latter, means to maintain the connecting-means in position to cause the arm to reciprocate the guide with a relatively short traverse, means operated by the oscillationof the arm to shift the conmeeting-means after a predetermined num ber of oscillations to cause the guide to be reciprocated with a longer traverse, and means adjustable to vary the time of action of the shifting-means.

10. In a winding machine, the combination with. a winding-spindle and threadguide, of an oscillating arm for reciprocating the guide, means connecting the guide with the arm and adapted to slide on'the latter to vary the operative effect of its throw, a ratchet-member on the arm adapted to retain the connecting-means at a distance away from the end of the arm, means to operate the ratchet-member at each oscillation of the arm to release the connectingmeans after a predetermined number of oscillations, andmeans adjustable to regulate the number of operations of the ratchetmember required to effect the release of the connecting-means.

11. In a winding machine, the combination with a winding-spindle and threadguide, of an oscillating arm for reciprocating the guide, means connecting the guide with the arm and adapted to slide on the latter to vary the operative eifect of its throw, a member on said arm adapted to retain the connecting-means in position for the arm to impart a relatively short traverse to the guide, means operated at each oscillation of the arm to shift the retaining-member to release the connecting-means after a predetermined number of oscillations, and means to adjust said retaining-member to regulate the number of operations required to efl'ect the release of the connecting-means.

12. In a winding machine, the combination with a winding-spindle and threadgui'de, of an oscillating arm for reciprocating the guide, means connecting the guide with the arm and adapted to slide on the latter to var the o erative effect of its throw, a mem er on t e arm adapted to retain the connecting-means in position for the arm to imparts relatively short traverse to the guide, means to move said member to a slight extent during each 7 oscillation of the arm, and means to adjust said member to regulate the extent of movement reqili-red to release the connectingmieans,

13. In a winding machine. the combination with a Winding-spindf and threadguide, of an oscillating arm tor reciproeatmg the guide, means connecting the guide with the arm and adapted to slide on the latter to vary the operative effect ot its throw, a member onsaid armformed with ratchet teeth and adapted to retain the connesting-means at a distance away fromthe end of the arm, means to intermittently shift said member one tooth at each oscillatien of the arm to release the connectingmeans after a predetermined number oi oscillations, and means to adjust the memher to vary the extent of movement reqni-redi for it to release the connecting-means,

14:. In. a winding machine, the combinai- I tion with a winding-spindle and threadgui-de, ofi an oscillating armfor reciprocat ing the guide, means connecting, the guide with the arm and adapted to be shifited on the latter to vary the operative effect ofi its throw, a member" adapted to retain the con;- necting-means at a point adjacent the axis of the arm, a spring tending to move said member to engage it with the connectingmeans, and means to shift said member to cause it to release the connecting-means: at a predetermined point in the winding;

1!5-.. In a. winding machine, the combination: with awinding-spindle and thread guide, oifi anoscillating arm for reeipr0cat ing the guide, means connecting the guide with the arm and adaptedto be shifted on: the latter to vary the operative efiect of its throw, a member adapted toretain the connecting-means at a distance away from the end of thearm, means to move said member to engage it with the connecting-means,

means tonormal ly hold the member against 1 such movement, and means to release the. holding-means.

16. In a winding machine, the combination with a winding-spindle and threadguide, 015 an oscillating; arm for reciprocating the guide, means connectlng the guide with the arm and adaptedto be shifted on the latter to vary the operative-effect of its throw, a member adapted to retain the connecting-means at a distance away from the end of the arm, means to engage said' member with the connecting-means, and means-t0 hold the member against such engagement, said holdin -means adapted to be released by the shifting of the connecting-means.

'17. In a winding machine, the combination with a winding-spindle and threadguide, of an oscillating arm, a connection between the guide "and arm adapted to be shifted along the latter, a retainlng-member pivoted on the arm and adapted to swing into engagement with the connection, a ispring to swing the member, and a pawl operated during the oscillating movement of the arm to shift the member against the action of the spring to disengage it from the connection I I 7 I 18.- In a. Winding machine, the combina- ,t1o n with; a winding-spindle and threadguide, of an. oscillating arm, a connection between the guide and arm adapted to be shifted; along the latter, a retaining-member pivoted on these-m and adapted to swing to engage it with the connection, a spring to swing the member into engagement with the connection, a pawl operated by the oscillation of the; arm to intermittently shift the member against the action oi the spring, and a. secondv pawl adapted to hold the member the pol sition to which it is shifted by the 19. In a winding machine, the combination with a; Windingspindle and threadguide, 015 an oscillating arm, a. connection between. the guide and arm adapted to be shified along the latter, a retaining-member pivoted on the arm and adapted to, be engaged with the connection to a greater or .less extent, means adjustableon the retainling-member to regulate the extent of its ongagement with the connection, and means operated during the oscillation of the arm to shift the retaining-member by degrees to release it from the connection.

20.. In a winding machine, the combinatie-n: with the winding-spindle and thread- 105 of an. oscillating arm formed with a slot extending radially from its axis, a; link connected with the guide and carrying a stud at its opposite end engaging the slot in ithe arm, a sector. pivoted on the arm and iiormed With-a slot adapted to engage the i stud on the link, means to engage the sector iwith the stud, means to shift the sector 0 release the stud at a predetermined point fin: the winding.

' 21. a winding machine, the combinaltion; with the winding-spindle and thread:- guide,-. oii an oscillating'arm, a link connected 1fwi-th the guide and having a stud at its 0pipositeend slidable. on the arm, a sector piv- 1-20 goted on the arm and-:iormed with a slot adapted toengage the stud, means to adjust }the extent of engagement of the sector with the stud, and means operating intermittently l during the oscillation of the arm to shift the 125 .sector to release the stud after a predel u o I termined number of oscillations.

22. In a winding machine, the combination with the winding-spindle and threadguide, of an oscillating arm, a link connected 1 so with the guide and carrying a stud at its opposite end slidable along the arm, a sector pivoted on the arm and formed with an arcuate slot adapted to slide over the stud, said sector formed with ratchet teeth, a spring to swing the sector to engage its slot with the stud, a pawl pivoted on the arm and adapted to engage the teeth on the sector to hold it against the action of the spring, and a second pawl adapted to be actuated through engagement with the link at each oscillation of the arm to shift the sector tooth-by-tooth on the holding pawl.

23. In a winding machine, thecombination with the winding-spindle and threadguide, of an oscillating arm, a link connected with the guide and carrying a stud at its opposite end slidable along the arm, a sector pivoted on the arm and having a slot adapted to slide over the stud, a spring to swin the sector to engage its slot with the stu a pawl to hold the sector against the action of the spring, a swinging-member, and a pawl ,pivoted on the swinging-member and adapted to be moved therewith to shift the sector on the holding pawl.

24. In a winding machine, the combination with the winding-spindle and threadguide, of an oscillating arm, a link connected with the guide and having a stud slidable along the arm, a sector pivoted on the arm and formed with a slot adapted to slide over the stud, a spring to swing the sector to engage its slot with the stud, a pawl pivoted on the arm and adapted to engage the sector to hold it against the action of the spring, a standard mounted on the arm, a swingingmember pivoted on the standard, a pawl pivoted on the swinging-member and adapted to be engaged by the link to carry it into engagement with the sector, and a spring to normally maintain said pawl out of engagement with the sector.

25. In a winding machine, .the combination with the winding-spindle and threadguide, of an oscillating arm, a link connected with the guide and having a stud slidable along the arm, a sector pivoted on the arm and having a slot adapted to engage the stud, said sector formed with ratchet teeth, a spring to swing the sector to engage its slot with the stud, and a pawl adapted to engage the teeth on the sector to hold the latter against the action of the spring, said pawl having an arm adapted to be engaged by the end of the link when the stud is moved inward on the arm to release the pawl from the teeth on the sector.

26. In a windin machine the oombination with the win 'ng-spindle and threadguide, of an oscillating arm having a slot extendin radially from its axis, a link connected with the guide and carrying a stud adapted to slide along the slot in the arm a toothed sector pivoted on the arm an formed with a slot adapted to engage with the stud, said slot terminating in an abutment extending across the slot in the arm and adapted to be engaged by the stud before the latter enters the slot in the'sector, and a pawl engaging the teeth on the sector and adapted to be released therefrom when the sector is moved through engagement of its abutment by the stud.

27. In a winding machine, the combination with the winding-spindle and threadguide, of an oscillating arm, a link connected with the guide and carrying a stud adapted to slide along the arm, a swinging sector pivoted on the arm and formed with a slot adapted to slide over the stud, said sector having a series of holes, and a wire spring secured to the arm with its end adapted to engage one of the holes in the sector to swing the latter, the end of the spring being adapted to engage the side of the arm to limit the swinging movement of the sector.

28. In a winding machine, the combina tion with the winding-spindle and threadguide, of a traverse-bar for reciprocating the guide, an oscillating arm, a link conn ected to the traverse-bar with its opposite end adapted to slide along the arm, means to retain the linkat a point away from the end of the arm, devices to release said retaining-means, and a spring adapted to engage the end of the traverse-bar during the oscillation of the arm to slide the bar to carry the link to the end of the arm.

29. In a winding machine, the combination with the winding-spindle and thread guide, of an oscillating arm formed with a slot extending radially from its axis, a link connected with the guide and carrying a stud slidable along the slot in the arm, a plunger slidable in the arm to project its end into the slot, and a spring to slide the plun- In testimony whereof we aflix our slgnatures in presence of two witnesses.

ARTHUR I. HARVEY. WILLIAM MARCROFT.

Witnesses:

ARTHUR A. ARMINGTON, HERBERT K. ALLARD.

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