US1517746A - Means for controlling the traverse of yarn guides on spinning machines - Google Patents

Description

Dec. 1924 1,517,746

E. E. NOWELL MEANS FOR CONTROLLING THE TRAVERSE OF YARN GUIDES ON SPINNING MACHINES Filed March 19, 1924 2 Sheets-Sheet 1 H Low/m E. NMELLv E. E. NOWELL MEANS FOR CONTROLLING THE TRAVERSE OF YARN GUIDES ON SPINNING MACHINES v Filed March 19 1924 2 Sheets-Sheet 2 \nvenior: EDWARD E. NDWELL Patented Dec. 2, l 1924.

UNITED STATES PATENT OFFICE.

EDWARD E. NOWELL, 0F READING, PENNSYLVANIA.

MEANS FOR CONTROLLING THE TRAVERSE OF YARN GUIDES ON SPINNING MACHINES.

Application filed March 19, 1924.

To all who-m it may concern Be it known that I, EDWARD E. NOWELL, a citizen of the United States, residing at Reading, in the county of Berks and State of Pennsylvania, have invented certain new and useful Improvements in Means for Controlling the Traverse of Yarn Guides on Spinning Machines, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to the builder motions of spinning machinery, and particularly to means for forming a preliminary winding or bunch upon the bobbin or cop prior to the formation of the main or service winding, the bobbins or cops so wound being used in the shuttles of automatic feeler replenishing or feeler looms.

One of the objects of the invention is to improve upon the construction illustrated in my Patent #1, 174:,54l4t, granted November 20, 1923, on means for controlling the traverse of yarn guides on spinning machines.

A further object is to simplify the construction therein illustrated and to do away with the use of the cam shaft, drum or pulley and the use of the two chains or flexible connections leading thereover to the rockers of the spinning-frame.

A still further object is to provide for an adjustment of the bunch laying mechanism so that the length of the traverse for forming the bunch may be varied.

Other objects will appear in the course of the following description.

My invention is illustrated in the accompanying drawings, wherein Figure 1 is an elevation of a portion of a spinning frame and the builder motion thereof, showing my improvement applied thereto Figure 2 is an enlarged elevation of a portion of the builder motion and my improvement;

Figure 3 Figure 1;

Figure 4 is a horizontal section through the drum 32 and showing aportion of the builder motion in plan View;

Figure 5 is a cross sectional view on the line 5 5 of Figure 4:;

Figure 6 is a like View to Figure 5 but is a section on the line 33 of showing the position of the pin 37 at the time that the pin enters the socket;

Serial No. 700,272.

Figure 7 is a sectional view through a bobbin and showing the bunch formed thereon by my mechanism;

Referring to these drawings, A designates a spindle rail supported on the usual frame, and on this frame are mounted the usual rotatable spindles B. Coacting with these spindles is the vertically reciprocating ring rail C provided with rings D, one for each spindle. The spindle rail is reciprocated by means of lifter rods E which engage with the ring rail, and these lifter rods are operated by means of a plurality of rocker arms G which have, generally speaking, the form of bell crank levers, thereby providing upwardly extending arms H and horizontally extending arms, the latter extending beneath and bearing against the lower ends of the lifter rods E. The vertically extending arms H of all of the lifter rods are connected by connecting rods I- in the usual manner and these bell crank levers G or rockers are each mounted upon a suitable bearing J. The arms G may or may not be weighted as occasions demand. So far as I have described, these parts are common to all builder motions of spinning frames.

These rocker arms G are operated by means of a builder action and I have illustrated a common form of such action, in which 11 is the builder arm pivoted at 12 and carrying at its inner end a drum 13. This drum is rotated in one direction by means of a worm 14 mounted upon a pick shaft 15 carrying upon it a pick wheel 16 adapted to be turned one step upon the upward movement of the outer end of the arm by means of a pawl 17 and the usual vertically disposed rod 18 which passes through the frame of the machine and which is provided with a stop 19 which, when it engages the frame, depresses the outer end of the pawl and turns the pick wheel a predetermined amount to rotate the drum 13 in an unwinding direction. The builder arm is illustrated as oscillated by means of a trilobed cam 20. I have illustrated a trilobed cam, but I do not wish to be limited thereto as a cam of any form might be used.

From the drumy13 passes a chain 21 which, in my embodiment of the invention, passes over a pulley 22 mounted upon a bracket 23 on the lower rail A of the frame of the machine. This chain 21 after passing over this pulley 22 extends to and is connected with the upper end of the upwardly extending arm H. For this purpose the arm H is provided at its upper end with a head it having a curved-upper surface, at one end of which av hook is provided engaging in the links of the chain. I do not wish to be limited to this particular manner of connecting the chain 21 to the upper end of the arm H, as other means might be used for this purpose. All of these parts so far described are those commonly found in builder motions and in spinning machines for the purpose of causing the traverse of the ring rail and form no part of my invention.

Mounted upon a bracket 24;, which in turn is mounted upon the lower rail A, is a fixed shaft 25 which extends out laterally from the bracket and which is detachably engaged with the bracket 24 in any suitable manner and held from rotation. Mounted upon the end of this shaft 25 is a fixed collar 26 also held fnom rotation with relation to the shaft by means of a set screw or any other suitable device.

Mounted upon the shaft 25 is an arm 27, the inner end of this arm being enlarged to loosely embrace the shaft and oscillate there on and the outer end of the arm carrying a roller 28 which bears upon the upper face of the chain 21. A coiled spring 29 loosely surrounds the shaft 25 and at one end this coiled spring is engaged with the collar 26 and at its opposite end is operatively engaged with the arm 27. This coiled spring resists the movement of the arm 27 in one direction and if after the arm 27 has been carried in this direction for a certain distance the arm 27 be released, the coiled spring will return the arm to its normal or initial position. It will be noted from Figure 2 that the extremity of the arm is provicled with two openings 30 disposed at different distances from the end of the arm so that the shank 31 of the roller may be shifted along the arm 27 and disposed in either one of these apertures 30 to thus adjust the stroke which the roller will make and thus vary the range of preliminary winding on the bobbin.

Mounted loosely upon the shaft 25 is a drum, designated generally 32. This drum is formed by one side wall and an annular peripheral wall and a second side wall 33 attached to the main body of the drum in any suitable manner. Forming part of this drum, that is movable therewith but preferably detachable therefrom, is an arm 34 which at one end is formed to embrace the shaft and at its outer end extends beyond the drum and is engaged with the drum by means of a screw 35. The extremity of this arm 34 is connected by means of a rod 36 to the builder arm 12. This rod 36 is pivotally connected to the arm 34, and obviously when the builder arm is oscillated. an oscillating motion is given to the drum 32, and if the drum 32 be connected to the arm 27 it is obvious that an oscillatory motion will be given to the arm 27 and the roller 28 will alternately force down ard on the chain 21 or move upward and permit the chain to slacken.

For the purpose of engaging the arm 27 to the drum 32 while the hunch is being built and automatically disengaging the arm 27 from the drum 32 so as to cause the arm. 27 and roller 28 to become inoperative, I have provided mechanism substantially that shown, described and claimed in my Patent #1,474,544;, which mechanism includes a locking pin 37, the inner end of which is enlarged and formed with an interrupted screw-thread, while the outer end rela tively reduced and fits within an aperture 38 in the arm 27. This pin 37 is thus rigidly engaged with the arm 27 and moves with this arm. During the formation of the. bunch, that is during the initial movements of the builder arm 12, this pin 37 locks the arm to the drum, but as the builder arm oscillates and as the drum oscillates, this pin 37 is little by little projected until it eventually releases its engagement with the screw-threaded socket 41, as will be later described, whereupon the arm 27 flies back to its initial position and remains in this initial position until the pin 36 and the screwthreaded socket in which it is engaged are again disposed in registry.

It is to be understood that the spring 29 not only resists oscillation of the arm 27 in one direction and acts to urge it to an initial position, but this spring also acts to urge the arm 27 longitudinally along the shaft 25 and against the drum and that as the pin 37 is moved outward by engagement with the screw-threads of the socket, as will be later described, this arm 27 is moved outward along the shaft against the action of the spring 29, and that as soon as the pin 37 again comes into position opposite the socket in the drum, the spring 29 will THHSC the arm 27 to move inward and the pin :37 to enter the socket in the drum. The mechanism whereby this pin is caused to unscrew from its engagement with the drum is as follows Loosely mounted upon the shaft 25 and disposed within the hollow drum 32 is a gear wheel 39. Disposed also within the drum and mounted in bearings therein is the shank 40 of a socket member 41. This socket member has its outer end reduced so as to fit within the section 33 of the drum and rotate in this section and is internally screw-threaded, as at 42. The shank 10 is reduced at the end opposite the socket for insertion within a suitable bearing recess in the end of the drum, and mounted upon this shank for rotation therewith is a pinion 43 which engages with the gear wheel 39. Keyed upon the shaft 25 and disposed within the hollow drum and adjacent to the section 33 is one member 44 of a clutch, this member having clutch teeth 45. The gear wheel 39 upon one face is formed with clutch teeth 46 which coact with the clutch teeth 45.

It is obvious that when the clutch teeth 45 and 46 are in engagement with each other, the gear wheel 39 will be held from rotation but upon a reverse movement of the drum the clutch teeth of the gear wheel will slip over the clutch teeth 45 and the gear wheel 39 will rotate with the drum by reason of the spring 47 which is coiled loosely around the shaft 25 and bears at one end against the end of the drum and at the other end against the gear wheel 39. Thus the gear wheel 39, when the drum 32 moves in a direction to carry the arm 27 upward, is held from rotation by the clutch teeth 45 on member 44 which is fixed to the fixed shaft. Upon a reverse movement of the drum, however, that is a movement carrying the arm 27 downward, the gear wheel 39 is free to revolve. Thus upon an upward movement of the arm 27, the pinion 43 will rotate by its meshing engagement with the gear 39 but upon a downward movementof the arm the pinion 43 and the gear wheel 89 will be locked to each other and will rotate together so that there will be no rotation of the interiorly screw-threaded socket 41. This intermittent movement of the interiorly screw-threaded socket causes the step by step upward movement of the pin 37, this pin being fast on the arm 27 carrying the arm up with it against the action of the spring 29. As before stated, until the pin 37 has entirely escaped from engagement with the socket and the minute this occurs, the spring 29 acts to carry the arm 27 upward independently of any movement of the drum and then the arm 27 has become totally disengaged from the drum. The drum then operates but without any effect and the regu-' lar oscillation of the builder arm 12 is then used to cause the traverse of the ring rail up and down the spindle B.

This traverse of the ring rail causes the yarn to be laid in its regular fashion upon the bobbin, while the relatively short traverse of the ring rail causes the formation of the bunch. It will be understood that in the normal operation of this mechanism, as the arm 12 rises the chain 21 is slackened and the weight on the arm G causes the rise of the ring rail supporting the rods E. Upon a downward movement of the arm 12, the chain 21 is tightened and this causes a downward movement of the rods E and the downward movement of the ring-rail. Thus the rin rail is caused to traverse up and down the length of the service traverse of the bobbins. As the chain is paid out by the action of the pick wheel 16, the traverse becomes higher and higher up the spindle, but when my bunch forming mechanism is in operation, an upward movement of the arm 12 which would normally cause the chain 21 to slacken up and permit the full rise of the rods E is counteracted by the slack in the chain being taken up by the downward movement of the arm 27 and of the roll 28 which bears upon the top of the chain. When the pin 87 has been fully shifted out of its socket, the arm 27 springs upward to carry the roller 28 entirely out of the way of the chain 21 and then the regular builder motion comes into action to cause the laying of the service yarn.

When the bobbin has been completely wound and is to be doffed, the ring rail is pulled down by the operator and the lifting rod E and the rocker Gr move down and when this is being done the vertical arm H which carries the chain hook moves in the direction of the drum 32 and thus the chain 21 moves downward with the builder arm 11. The downward movement of arm 11 causes the drum or disk 32 to move in the same direction as the chain 21, or in other words to turn in a counterclockwise direction. lVhen the builder arm reaches the floor, the chain 21 becomes slack and the drum or disk has turned so as to carry the socket 41 opposite the pin 87. As soon as the socket 41 comes opposite the pin 37, the spring 29 will urge the arm 27 inward and the pin will slip into the socket and the parts are ready to repeat the operation. When the pin 39 is being inserted into the socket 41, the twisting action of the spring 29 keeps the plain side of the pin 89 against the thread in the socket, (see Figure 6) thus permitting the pin to slip into the socket easily, the plain side of the pin resting against the thread of the socket until the ring rail is let up, and when this is done the lifting rod E and the rocker G will raise and this will cause a pull on the chain 21. Then as the gear and socket revolve, the pin 39, or rather its threaded portion, follows the thread of the socket until the pin has entirely worked out from the socket and the hunch is completed. Then the operation heretofore described is repeated.

The general operation of this mechanism is as follows :-At the start of the winding, the chain 21 is wrapped entirely up on the chain wheel 13. The chain 21 is. therefore, taut and the ring rail is lowered as far downward on the bobbins as possible. As the cam 20 operates it will give three oscillations'to the builder arm 11 for each revolution of the cam. Upon each downward movement of the builder arm, the pick pawl will act upon the worm 14 to cause a slight rotation of the drum 13 or roller to give a slight release to the chain21, and thus if my mechanism was not used the ring rail would at each reciprocation move a little higher up on the bobbin, but this release of the chain is compensated for, as before stated, by the coincident depression of the roller 28 which takes up the slack in this chain so that the ring rail as a result is reciprocated upward and downward through a relatively small range just enough to lay the bunch and the number of screw-threads on the pin 87 and upon the screw-threaded socket are just sufficient to cause the automatic throwing out of operation of the arm 27 and the roller when the bunch has been completed.

I am aware that mechanism has been provided for the purpose of automatically con trolling the traverse of the ring rail but these mechanisms are relatively costly and occupy considerable room. My device is so simple that it may be cheaply made and occupies only a space of about 2 x 4'. This bunch mechanism will leave about three or four yards of filling on the bobbins compared with forty or fifty yards left on the bobbins by the ordinary builders. It is entirely automatic and is'easily set while the bobbins are beingdoffed. It is to be seen that while this form of mechanism is entirely practical and thoroughly effective, yet that the principle of the invention may be embodied in various forms, and I do not, therefore, wish to be limited to the construction illustrated, as other embodiments of the invention within the terms of the appended claims might be devised.

1. In a spinning machine, the combination with spindles, a vertically reciprocatable ring rail operatively connected therewith, a rocker operatively connected to the ring rail, a builder motion, a flexible connection extending from the builder motion to the rocker, of means for limiting the extent of movement of the ring rail for a predetermined period to thereby form a bunch upon each spindle comprising an oscillatable member operatively connected to the builder motion and oscillated thereby, said member having an arm provided with a roller engaging over the flexible connection,

I said arm being normally operatively connected to the member to oscillate therewith, and means operated by the reciprocation of said member acting after a predetermined number of oscillations to detach said arm c from its engagement with the member to tively connected to the ring rail, a builder motion, a flexible connection extending from the builder motion to the rocker, of means for initially limiting the extent of reciprocation of the ring rail to thereby form a bunch upon the spindles comprising an oscillatab'le member having an arm extending in one direction and operatively engaged by the builder motion to cause the elevation of the arm upon an elevation of the builder motion, a second arm attached to the member and extending out in an opposite dirertion from the first named arm and having a projection engaging over the flexible connection and adapted to take up slack in the flexible connection as the builder motion is raised, and means acting after a predetermined number of oscillations of the builder motion to release said second named arm from its engagement with the said member.

In spinning machinery, the combination with spindles, a vertically reciprocatable ring rail coaeting therewith, a rocker operatively connected to the ring rail, a builder motion, a flexible connection extending from the builder motion to the rocker, of means for limiting the extent of reciprocation of the ring rail for a predetermined period to thereby form an initial bunch upon the spindle comprising a fixed shaft, a member oscillatably mounted upon the shaft, an arm loosely mounted upon said shaft and having a projection adapted to engage over the flexible conneetion, an operative connection between said member and the builder motion whereby as the, builder motion shifts to slacken the flexible connection the member will oscillate in one direction, and means carried by said member normally engaging the arm with said member for movement therewith but automatically disengaging the arm from said member after a predetermined number of oscillations of said member.

4. In spinning machinery, the combination with spindles, a vertically reriprocatable ring rail coacting therewith, a rocker operatively connected to the ring rail, a builder motion, a flexible connection extending from the builder motion. to the rocker, of means for limiting the extent of reciprocation of the ring rail for a predetermined period to thereby form an initial bunch upon the spindle comprising a fixed shaft, a member oscillatably mounted upon the shaft, an arm loosely mounted upon said shaft and having a projection adapted to engage over the flexible connection, an operative connection between said member and the builder motion whereby as the builder motion shifts to slacken the flexible connection the member will oscillate in one direction, a spring urging said arm toward the member and urging the arm upward, and means carried by said member normally engaging the arm with said mem ber for movement therewith but automatically disengaging the arm from said mem her after a predetermined number of oscillations of said member.

5. In a spinning machine, spindles, a vertically reciprocatable ring rail coacting therewith, a rocker operatively connected to the ring rail, means urging the ring rail upward, a builder motion including a vertically oscillatable arm, a flexible connection extending from said arm to said rocker and permitting the ring rail to move upward under the action of said urging means as the arm of the builder motion moves up ward, means for limiting the extent of reciprocation of the ring rail for a predetermined period to thereby form a bunch upon the bobbin comprising an oscillatable drum, an operative connection between said drum and the arm of the builder motion, an arm carried by the drum and having a projection engaging over the flexible connection, the arm being mounted for movement toward and from the drum, and means within the drum and actuated by the oscillations thereof whereby said arm may be shifted out of engagement with the drum after the drum has oscillated a predetermined number of times.

6. In a spinning machine, spindles, a vertically reciprocatable ring rail coacting therewith, a rocker operatively connected to the ring rail, means urging the ring rail upward, a builder motion including a vertically reciprocatable arm, a flexible connection extending from said arm to the rocker, a pulley over which the flexible connection passes, the connection between said pulley and the rocker extending approximately horizontally, a shaft, a drum loosely mounted upon the shaft and operatively connected to the arm of the builder motion whereby the drum may be oscillated, an arm loosely mounted upon the shaft adjacent the drum and extending away from the builder motion, said arm having a projection adapted to engage over the flexible connection, a spring urging said arm toward the drum and resisting the movement of the arm from a normal position, and means disposed within the drum and carried thereby, causing the operative disengagement of the arm from the drum after the drum has oscillated a predetermined number of times, the spring then acting to lift the arm out of engagement with the flexible connection.

7. In a spinning machine, spindles, a ver tically reciprocatable ring rail eoacting therewith, a rocker operatively connected to the ring rail, means urging the ring rail upward, a builder motion including a vertically movable arm, a flexible connection extending from the builder motion to the rocker, means for limiting the extent of rea projection adapted to engage over the flexible connection, a spring surrounding the shaft, one end of the spring being fixedly mounted and the opposite end of the spring engaging the arm and acting to urge the arm toward the drum and resist oscillation of the arm, the drum having a socket and the arm having a member normally engaging in said socket whereby the drum and arm shall have coincident oscillation, and means disposed within the drum for automatically shifting said last named member out of its engagement with said socket to permit the spring to lift the last named arm out of its operative engagement with the connection.

8. In a spinning machine, spindles, a vertically reciprocatable ring rail, a rocker operatively connected thereto, a builder motion including an arm, a flexible connection extending from the builder motion to the rocker, means urging the rocker in a direction to lift the ring rail, in combination with means for limiting the extent of reciprocz tion of the ring rail for a predetermined initial period comprising a fixed shaft, an oseillatable member mounted upon the shaft and operatively connected atone point in its periphery to the arm of the builder motion. for reciprocation thereby, an arm normally engaging said member for oscillation therewith and ext-ending in an opposite direction to the point of connection of the member to the builder arm, the second named arm having a laterally projecting roller engaging over the flexible connection, a spring urging said second named arm toward the member and also acting to resist depression of the second named arm, and means carried by said member and actuated by the oscillations thereof acting to cause disengagement between the second named arm and said member after a predetermined number of oscillations of the member and the builder arm but automatically returning the second named arm into engagement with the member when the builder motion arm is fully depressed. to permit dofling of the bobbins.

9. In means for controlling the traverse of spinning rings, a ring rail shifter, a builder action operatively connected to the shifter, means operated by the builder action for giving an oscillation to the ring rail shifter equal to the amplitude of movement of the builder action, and means operated by the builder action for initially limiting the extent of oscillation of the shifter during lib a predetermined period, said means being rendered automatically inoperative after the builder action has made a predetermined number of oscillations.

10. In means for controlling the traverse of spinning rings, a ring rail shifter, a builder action, a flexible connection between the builder action and the ring rail shifter, an oscillatable member operatively connected with the builder action to be oscillated thereby, an arm coacting with the member and having a projection adapted to engage over the flexible connection and when the member is oscillated in one direction by the builder action to depress the flexible connection, means for rendering the arm active during a predetermined period and then automatically rendering it inoperative comprising a pin mounted on said arm, a menr her having a socket to receive said pin, means urging the arm against the member to thereby yieldingly hold the pin in said socket, said means resisting a downward movement of the arm, and means acting as the member is oscillated to cause the pin to shift little by little out of the socket to thereby detach the arm and the member from each other.

11. In means for controlling the traverse of spinning rings, a ring rail shifter, a builder action, a flexible connection between the builder action and the ring rail shifter, an oscillatable member operatively connected with the builder action to be oscillated thereby, an arm coacting with the member and having a projection adapted to engage over the flexible connection and when the member is oscillated in one direction by the builder action to depress the flexible connection, means for rendering the arm ac tive during a predetermined period and then automatically rendering it inoperative comprising a pin carried on the arm, the member having a screw-threaded socket in which said pin engages, the socket being larger than the pin and the pin having screw-threads on one face only, and a spring urging the arm against said member and yieldingly resisting downward movement of the arm.

12. In a spinning machine, the combination with the spindles thereof, a vertically reciprocatable ring rail coacting therewith, a rocker operatively connected to the ring rail, means urging the ring rail upward, a builder motion, a flexible connection extending from the builder motion to the rocker, means for limiting the extent of reciprocz tion of the ring rail for a predetermined period whereby to form a bunch upon the bobbins comprising a fixed shaft, a hollow drum mounted thereon for oscillation, the drum having operative connection to the builder action whereby the drum may be oscillated, an arm loosely mounted upon the shaft and extending away from the builder motion, a spring urging said arm toward the drum and resisting the downward movement of the arm, said arm having :1 laterally projecting roller engaging over said. flexible connection and adapted to depress it as the arm is moved donuiward, means for opcratively engaging the arm with the drum for a PIGClGtQIIIllDQtl number of oscillations of the drum and then disengaging the arm therefrom comprising a scrmv-thr adcd pin mounted upon the arm, an interh'n'ly srrewthreaded socket carried by the frame with which said screw-threaded pin is adapted to engage, and means actuated by the oscillal ion of the drum for urging said sci-inv-tln'cadcd socket in a direction to disengage the scrcwthreaded pin therefrom to thcrcby pcrn'iit the lifting of the arm to an inoperative position and out of engagement with said connection.

13. In a spinning machine, the combination with the spindles thereof, a vertically reciprocatable ring rail eoacting thcrcwith, a rocker operatively connected to the ring rail, means urging the ring rail. upward, a builder motion, a flexible connection extending from the builder motion to the rocker, means for limiting the extent of rcciprocation of the ring rail for a predetermined period whereby to form a bunch upon the bobbins comprising a fixed shaft. a hollow drum mounted thereon for oscillation, a drum having operative connection to the builder motion whereby the drum may be oscillated, an arm loosely mounted upon the shaft and extending away from the builder motion, a spring urging said arm toward the drum and resisting the downward movement of the arm, said arm having a lalcraltv projectingroller engaging over said flexible connection and adapted to depress it as the arm is moved downward, means for opcratively engaging the arm with the drum for a predetermined number of oscillations of the drum and then disengaging the arm therefrom comprising a pin carried by said arm, an interiorly screw-threaded membcr carried by the drum into which said pin normally engages, a gear wheel loosely supported within the drum and operatively cugaging said member. said gear whccl having a clutch face, a clutch member mounted in the drum but held from rotation therewith and having clutch teeth engagmible with the last named clutch face. and a spring urging the clutch members into on gagement with each other.

In testimony whereof I hereunto aflix my signature.

EDlVARD E. NOWELL.

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