US2548719A - Traverse motion drive for spinning and twister frames - Google Patents

Description

April 10, 1951 J. B, GOODGAME TRAVERSE MOTION DRIVE FOR SPINNING AND TWISTER FRAMES 3 Sheets-Sheet 1 Filed Dec. 14, 1949 INVENTOR.

Jesse B. GOODGAME- ATTORNEY April 10, 1951 J. B. GOODGAME 2,548,719 TRAVERSE MOTION DRIVE FOR SPINNING AND TWISTER FRAMES Filed Dec.

3 Sheets-Sheet 2 INVENTOR.

ATTORNEY April 10, 1951 J GQODGAME 2,548,719

TRAVERSE MOTION DRIVE FOR SPINNING AND TWISTER FRAMES Filed Dec. 14, 1949 s Sheets-Sheet s [5555 B. 6009 AME, INV NTOR.

ATTORNEY Patented Apr. 10, 1951 TRAVERSE MGTION DRIVE FOR SPINNING AND TWISTER FRAMES Jesse B. Goodgame, Charlotte, N. 0., assignor to Precision Gear and Machine Company, Charlotte, N. 0., a corporation of North Carolina Application December 14, 19%, Serial No. 132,97 9

3 Claims.

This invention relates to traverse motions for spinning frames, twister frames and the like, and more especially to an improved driving means for the builder cam.

Heretofore, the builder cam associated with the builder motion, which is a part of a traverse motion, on a spinning frame or the like has been driven through a series of gears including beveled gears and a worm and worm gear drive combination, the worm gear being fixed on the shaft on which the builder cam has been fixedly mounted. It is well known that a certain amount of back-lash is essential in beveled gears and in worm and worm gear drives and that the socalled pitman roll which rides against the builder cam has lifting effect against the builder cam as the high point of the cam moves toward and into engagement with the pitman roll.

On the other hand, immediately upon the high point of the cam moving out of engagement with the pitman roll, the builder motion is relieved, momentarily, of the weight of the ring rail and intervening parts and falls, by gravity, thus momentarily reversing the pressure on the beveled gears and the worm and worm gear combination. The ring rail will then remain stationary until any back-lash in these gears is overcome.

When the ring rail remains stationary, several rounds of yarn may be fed to the bobbins at a single point along their lengths. Now, when the yarn is withdrawn from these bobbins, such as on a winding machine or in the shuttle of a loom, several rounds of yarn may be withdrawn from the bobbins simultaneously as a result of these several rounds being formed by a momentary :1.

pause of the ring rail, and these rounds would become entangled and break or cause a defect in the fabric being woven or the packages of yarn being wound.

It is therefore an object of this invention to provide an improved chain drive mechanism for spinning frames and the like for transmitting rotation to the builder motion cam, the chain employed preferably being a silent type of chain,

and through a series of chain and sprocket com a binations reducing the rate of speed transmitted from the usual driving source of the spinning frame to obtain the same rate of speed of the builder cam as has heretofore been the case, without the necessity of using beveled gears or a worm and worm gear drive combination thus eliminating the back-lash which has heretofore resulted in the diinculties previously described.

It is another object of this invention to provide a combination spur gear and chain drive for transmitting rotation from the main cylinder shaft of the spinning frame, twister o the like to the builder motion cam, to not only avoid the occurrence of back-lash through the intervening connections but to also provide means for varying the speed of the builder motion cam relative to the speed of the bobbins by utilizing at least one of the spur gears as a change-gear. The purpose of varying the speed of the builder motion cam is to vary the speed at which the ring rail traverses, in a vertical plane, past the bobbins relative to the speed at which rotation is imparted to the bobbins to control the number of rounds fed to the bobbins in a predetermined length of the bobbins.

Some of the objects of the invention having been stated, other objects will appear as the description proceeds when taken in connection with the accompanying drawings in Which- Figure 1 is an end elevation looking at the head end of a spinning frame with the usual cover therefor removed and showing the improved chain drive mechanism for driving the builder motion cam;

Figure 2 is an enlarged vertical sectional view taken substantially along the line 22 in .Figure 1;

Figure 3 is an enlarged sectional View taken substantially along the line 33 in Figure 1;

Figure 4 is a vertical sectional view taken substantially along the line 4-4 in Figure 3;

Figure 5 is a side elevation of one end of a spinning frame showing a traverse motion associated therewith and including a connection between the builder motion and the ring rail of the spinning frame;

Figure 6 is an enlarged elevation of the builder motion looking substantially along the line *6'6 in Figure 5;

Figure '7 is a fragmentary elevation looking at the opposite side of the builder motion shown in Figure 5 and showing the pitman roll engaging the builder cam.

Referring more specifically to the'drawings the numeral Ill indicates a head end member of a spinning frame or the like to which one end of a main bottom rail H and one end of a-bolster ll having whorls thereon over which a suitable belt 2| is mounted, the belt being also mounted on a centrally disposed main cylinder 22 which is fixed on a main drive shaft 23. The shaft 23 is driven in a conventional manner by means, not shown, disposed at the other end of the spinning frame from that shown in Figure 5.

The spinning frame has a conventional ring rail 25 having a plurality of rings 26 thereon and each ring having a traveler 21 mounted thereon through which the strands S pass to the bobbins l6 as the ring rail 25 reciprocates in a vertical plane by means of the usual builder motion to be presently described.

The ring rail 25 is supported at various points throughout its length on a plurality of conventional lifter rods 30, only one of which is shown in Figure 5. This lifter rod 30 slidably penetrates the bolster rail I2 and the bottom rail H and the lower end thereof has a shoe 3| fixedly mounted thereon which bears against a roller 32 rotatably mounted on a stub 33 in a conventional lifter arm 34.

The lifter arm 34 is oscillatably mounted intermediate its ends, as at 35, on a conventional bearing hanger 36 secured, as by screws 37, to the bottom rail ll of the spinning frame. This conventional lifter arm 34 has a weight member 4|] at its right hand end in Figure 5, or at its end remote from the roller 32, and also has an upwardly extending portion 4| integral therewith which has secured thereto, as by screws 52, a conventional chain are 43.

The upper end of the upwardly extending portion 4| of the lifter arm 34 has pivotally connected thereto one end of an extension rod 44 which extends to similar lifter arms, not shown, for transmitting movement to the other conventional lifter rods, not shown, like the lifter rod 30 in Figure l.

The chain are 43, which is often referred to as quadrant, has one end of a conventional builder chain 45 connected thereto. This builder chain 46 extends over a conventional pulley 6T, rotatably mounted in a bracket 5|] secured, as by screws 5|, to the head end frame member Hi. The builder chain 46 extends downwardly from the pulley 41 and is connected at the lower end thereof to a hook member 52 of a conventional builder motion broadly designated at 53. There are various types of builder motions in use such as a bunch builder, a combination builder or a filling builder and these builder motions are slightly different from each other in construction and employ various shapes of builder cams. The builder motion 53 shown in Figures 5, 6 and 7 is of the type generally referred to as a bunch builder,.but it is to be understood that the present invention will work equally as well with various types of builder motions and will greatly improve the operation of all three of the types of builder motions heretofore described.

The particular type of builder motion 53 shown in Figures 5, 6 and '7 includes a lever 54 oscillatably mounted intermediate its ends as at 55, on a bracket 56 secured, as by screws 51, to the head frame member Ill. This lever 54 is irregular in shape at one end thereof and has a weight member 6|! at the other end thereof. The irregularly shaped end of the lever 54 has a conventional worm shaft 5| rotatably mounted therein on which a worm 62 is fixedly mounted. The worm shaft 6| extends through the end of the lever 54 and has a conventional ratchet wheel 63 fixedly mounted thereon. This ratchet wheel 63 is adapted to engage a ratchet pawl 64 pivotally mounted in a bracket 55 secured, as by screws 66, to the head end frame member l5. This pivoted ratchet pawl 64 engages the ratchet wheel 53 upon each downward stroke of the lefthand end of the lever 54 in Figure 6, and transmits a step in rotation to the shaft 5| upon each upward stroke of the left-hand end of the lever 54 in Figure 6.

The means for transmitting vertical movement to the lever 54 includes a pitman roll 61 rotatably mounted in a downwardly projecting portion 10 of the lever 54 (Figures 5 and 7). A conventional builder motion cam 7|, which is shown as a four lobe cam but which may be of any desired shape such as a heart-shaped cam, is engaged by the pitman roll 67. The pitman roll 51 is urged against the periphery of the builder motion cam 1| due to the weight member St at the other end of the lever 54.

The worm 52 on the shaft 6| engages a rack '12 secured to a dove-tailed slide member 13 and upon step-by-step rotation being imparted to the conventional worm 62, like movement will be transmitted to the rack 12 so as to transmit stepby-step movement to the dove-tailed slide member 13, to which the hook member 52 is pivotally connected, for gradually changing the range of vertical movement of the ring rail in a conventional manner. The dove-tailed slide member i3 is mounted for sliding movement in the lefthand end of the lever 54 in Figure 6.

The builder motion cam 1| is fixedly mounted on one end of a builder cam shaft which extends through and is rotatably mounted in the head end frame member ID and has a sprocket wheel 16 fixedly mounted on its end remote from the cam 1| and within the head end frame member ID. This sprocket wheel 16 is a part of the present invention, relating to means for transmitting positive rotation to the shaft 15 on which the builder motion cam 1| is fixedly mounted.

Heretofore, a worm gear has been employed in lieu of the sprocket wheel 16 and has been driven through a worm and a series of gears, including a pair of beveled gears, and the primary object of this invention is to eliminate the use of beveled gears in the course of transmitting rotation to the cam shaft 75 from the main cylinder shaft 23 shown in the central portion of Figure 1. The purpose of eliminating the beveled gears will be later described in summarizing the operation of this apparatus.

Most of the parts of the conventional driving mechanism for the spinning frame or the like are retained in the head end frame member 10 and operate in conjunction with the present invention and these parts include a twist spur gear Tl rotatably mounted on a stub shaft 18 projecting from and fixedly mounted in the head end frame member Hi. This twist gear Ti is driven in a manner to be presently described and imparts rotation to a left-hand interim gear 8| which, in turn, transmits rotation to a right-hand interim gear 82, these interim gears 8| and 82 are spur gears and are rotatably mounted on stub shafts 83 and 34, respectively, fixedly mounted in the head end frame member H]. The stub shaft 83 is conventional, and the stub shaft 84 is especially adapted to the present invention and will be later described in detail.

The interim gears 8| and 82 transmit rotation to front roll shafts and 9| through gears 92 and 93, respectively, rotatably mounted on stub shafts 94 and 95 fixedly mounted in and projecting from the head end frame member I6. The gears 92 and 93 have pinions 96 and 91 fixed thereto, in a conventional manner, which, in turn, mesh with gears 98 and 99, respectively, fixedly mounted on the top roll shafts 96 and 9| respectively. This completes the description of the conventional gearing disposed within the head frame member ID.

Now, fixedly mounted on the main cylinder shaft 23 is a sprocket wheel I65 on which a sprocket chain I66 is mounted. This sprocket chain I66 is also mounted on a sprocket wheel I61 rotatably mounted on the stub shaft 18 and having the twist gear.11 secured thereto. Thus, rotation is transmitted from the shaft 23 through the sprocket wheels I65 and I81, and the sprocket chain I66, to the twist gear 11 which, in turn, transmits rotation to the interim gears 8| and 62.

The right-hand interim gear 82 (Figure 1) is rotatably mounted on the stub shaft 84 as heretofore described. Now, this stub shaft 84, as shown in detail in Figures 3 and 4, has an enlarged portion IIB integral therewith and a restricted threaded portion I I I, this restricted threaded portion I II having flats I I2 on opposed sides thereof (Figure 4). The head end frame member has a vertically extending slot I I3 therein which is slidably penetrated by the restricted threaded portion I I I of the stub shaft 84 and the flats of the restricted threaded portion IIi prevent the stub shaft 84 from rotating in the slot H3.

The outer end of the restricted threaded portion II I has a washer II 5 mounted thereon against which a nut H6 is driven home on the threaded end of the restricted portion II I. A suitable oil cup I I1 is threadably mounted in one end of the stub shaft 84 and the stub shaft has communicating passageways I20, I2I and I22 therein for directing lubricant from the oil cup I 11 to the interim gear 82 as well as to a sprocket wheel I23 which is also rotatably mounted on the stub shaft 84 and which is suitably secured to the interim gear 82 so that rotation of the interim gear 82 will cause like rotation to be imparted to the sprocket wheel I23.

The enlarged portion III) of the stub shaft 84 has the forked end I25 of a change gear bracket, broadly designated at I2'6, loosely mounted thereon (Figure 4). This change gear bracket I26 has a substantially U-shaped portion I21 (Figure 3) integral with its end remote from the stub shaft 84 and in which a stub shaft I36 is rotatably mounted. Keyed on the stub shaft I66, as by a Woodruff key I3 I, is a sprocket wheel I32 which is disposed between the legs of the U-shaped portion I21 and has a sprocket chain I33 mounted thereon, this sprocket chain I33 also being mounted on the sprocket wheel I23 so as to transmit rotation from the sprocket wheel I23 to the sprocket wheel I32 and the shaft I 30.

The end of the change gear bracket I26 forming the wall of the U-shaped member I21 adjacent the head end frame Ill has extended wing portions I34 and I35 provided with a curved slot which extends from adjacent one end of the wing portion I34 to adjacent the remote end of the wing portion I 35.

curved slot I36 is slidably penetrated by a bolt I31 for securing the change gear bracket I26 in adjusted position depending upon the size of change gear mounted thereon.

A spur change gear I46 is keyed to a restricted end portion I4I of the stub shaft I36 and is se- The radius point of this curved slot I86 is the center of the stub shaft 84 and this cured thereon by any suitable means such as a cap screw I42 threadably embedded in the free end of the restricted portion I4I. This change gear meshes with a second spur change gear I45 which is commonly known as a lay compound gear. The lay compound gear I45 is keyed to a restricted end portion I46 of a stub shaft I41 and is secured thereon as by a screw I50 (Figure 2). This stub shaft I41 is rotatably mounted in the forked upper end I5I of an improvedtraverse motion drive bracket broadly designated at I52. The builder motion drive bracket I52 and the change gear bracket I26 are essential parts of the present invention and they are designed in such a manner as to eliminate many of the gears and other parts heretofore required in driving the usual types of traverse motions. The traverse motion drive bracket I52 is secured, as by square shanked bolts I53, I54 and I55 to the head end frame member Ill. The lower end of the builder motion bracket I52 has an enlarged portion I55a provided with a slot I552) which is penetrated by the screw I55 for purposes to be later described.

A sprocket wheel I51 is fixedly mounted on a restricted portion I66 of the stub shaft I41 and is keyed thereto, as by a Woodruif key I6I, and is secured thereon as by a set screw I62. The sprocket wheel :51, which is a relatively small sprocket wheel, has a sprocket chain I63 preferably'of the silent type, mounted thereon, this sprocket chain I63 is also mounted on a relatively large intermediate sprocket wheel I64. The sprocket wheel I 64 is fixedly mounted, as by a set screw 565 (Figure 2) and a key I'66, on the hub of a relatively small intermediate sprocket Wheel I531. The small sprocket wheel I61 is rotatably mounted on a sleeve I10 which is slidably mounted on a restricted portion I1I of a stub shaft I 12. The stub shaft I 12 has a head portion I13 at one end thereof.

It will be observed in Figure 1 that the builder motion drive bracket I52 has an enlarged cen-. tral portion I14 integral therewith having a transverse slot I 15 therein. This transverse slot I16 is slidably penetrated by the stub shaft I12, this stub shaft being secured in the slot I16 by a lock nut I11 threadably mounted on a restricted threaded portion I86 of the stub shaft I12, this restricted threaded portion I86 being of slightly large diameter than the restricted portion I1I on which the sleeve I10 is mounted. The purpose of the slot I16 is to provide means for taking the slack out of the sprocket chains mounted on the various sprocket wheels on the bracket I 52. The left-hand end of the stub shaft I12, in Figure 2, has a nut I 62 threadably mounted thereon for securing the sleeve I16 against the shoulder formed by the restricted threaded portion I86. It is thus seen that the intermedi ate sprocket wheels I64 and I61 may rotate on the sleeve I16.

The small intermediate sprocket wheel I61 has a sprocket chain I83 mounted thereon which extends downwardly and which is also mounted on a relatively large lower sprocket wheel I84 fixedly mounted on a lower stub shaft I85, as by a set screw I86 and a Woodrufi key I 81. The stub shaft I (Figure 2) is mounted in a thickened or raised portion I 58 integral with the lower portion of the builder motion drive bracket I52. This raised or thickened portion I96 has an opening I93 therein which is also spanned by the stub shaft I85, and disposed within the opening I93 and fixed on the shaft I85, as by a set screw I94 and a key I95, is a relatively small lower sprocket wheel I96. This sprocket wheel I96 has a sprocket chain 2Il|l mounted thereon which is also mounted on the sprocket wheel I6 heretofore described as being mounted on the rotatable cam shaft I5. The stub shafts 84, I3fi, I47, H2 and I85 are all provided with suitable friction bearings which are a usual part of structures of this type and a detailed description thereof is deemed unnecessary.

In mounting the traverse motion drive bracket I52 on the head member III, the bracket I52 is first pivotally secured to the head member by either of the bolts I53, I54 and also by the bolt I55 penetrating the adjustment slot I551). The chain 200 is then mounted on the sprocket wheels I6 and I96 and the bracket I52 is adjusted to take up any slack in the chain 200. The hole I53a or I540: is then drilled in the head frame member ID for reception of the bolt I53 or I54, which may have been previously omitted, and the bolt I53 or I54 is tightened to hold the bracket I52 in adjusted position. All the sprocket chains shown in Figure 1 must be taut in order to prevent occurrence of back-lash in the traverse motion drive.

It is thus seen that rotation will be transmitted from the right-hand interim gear 82 to the sprocket wheel I23 and successively through the sprocket chain I33, the sprocket wheel I32,

the change gear I42, the lay compound gear I45,

the sprocket wheel I51, the sprocket chain I63, the sprocket wheel I64, and thus to the sprocket wheel IE1 which rotates with the sprocket wheel I64. The sprocket wheel IG'I, in turn, transmits rotation to the sprocket wheel I54 through the H sprocket chain I83. The sprocket wheel I84 fixedly mounted on the stub shaft I85 transmits rotation to the small sprocket wheel I96 which, in turn, transmits rotation to the sprocket wheel I6 through the sprocket chain 200 to thus drive the cam shaft and the builder motion cam II (Figures 6 and 7).

It is well known, to those familiar with the art, that the builder motion cam II must rotate at a very slow rate in comparison to the rate of ro- .5

Now, in operation, the pitman roll 67 is urged against the periphery of the cam wheel II by the weight member 65 and, as the pitman roll 6! moves to the low points in the cam wheel H,

the left-hand end of the lever 54 moves upwardly thus permitting the chain are 43 to move from left to right in Figure 4 by virtue of the weight 43on the lifter arm 34. This will, of course, permit the roller 32 to move upwardly, with the arm 34, to elevate the ring rail through the medium of the lifter rod 39 Now, it is evident that during this lifting action of the lifter arm 34 and the lever 54, the builder cam iI would exert very little resistance against the upward movement of the pitman roll 51 since the weights 55 and 68 act to facilitate this upward movement.

Upon the cam II moving so the pitman roll 61 moves toward the high point of the builder cam I I, the pressure exerted by the roll 51 against the cam II is increased due to the fact that the cam II must force the left-hand end of the lever 54 downwardly and, in so doing, must also force the builder chain 46 downwardly and must raise the weights 40 and B5. The improved driving means will cause the builder motion to operate evenly regardless of this reversal of pressure.

However, if the conventional type of drive apparatus were employed in transmitting rotation to the builder cam I I, pressure between the driving and the driven beveled gears, which are usual parts of the types of traverse motion drives heretofore in use, would be exerted in one direction during the time that the pitman roll 61 was lowered in Figures 6 and 7, from the low point of the builder motion cam II to the high point thereof and this pressure would be reversed as the pitman roll 61 moved away from the high point of the cam II and to the low point of the builder motion cam II. It is evident that, heretofore, this caused a certain amount of back-lash between the beveled gears as the pitman roll 67 moved away from the apex of the high point of the builder motion cam II and, momentarily, this back-lash would have to be overcome between the two beveled gears heretofore employed and, during this interim, the ring rail 25 would remain stationary with the result that several rounds of yarn S would be applied to the bobbins I6 at one point along the length thereof. This would result in a faulty package, because wherever there were several rounds placed on a bobbin at a single point, all of these rounds would likely b withdrawn simultaneously from the bobbin in future operations, such as in the shuttle of a loom or in a winder or the like, and these several rounds of yarn would become knotted or entangled and this would result in an inferior material being woven on the loom or in an inferior package being wound on the winding machine, or it would cause the yarn to break thus requiring the ends to be pieced together and resulting in additional cost in future yarn processing operations.

It is thus seen that the improved driving means will overcome this back-lash and will cause the builder motion to operate in an even manner and will provide a more positive control of the same.

In the drawings and specification there has been set forth a preferred embodiment of the invention and although specific terms are employed, they are used in a generic and descriptive sense only, and not for purposes of limitation, the scope of the invention being defined in the claims.

I claim:

1. In a spinning frame, twister and the like having a head end member and being provided with a main drive shaft and a rotatable shaft rotatably mounted in the head end member, said spinning frame also having a builder motion cam fixedly mounted on the rotatable shaft and being provided with a builder motion having means thereon for engaging the builder motion cam, said spinning frame also having a pair of stub shafts thereon provided with a pair of intermeshing interim gears mounted thereon, a change gear bracket having a fork on one end loosely engaging one of said stub shafts, the other end of said change gear bracket having a U-shaped portion being provided with a spur gear and a sprocket wheel rotatably mounted thereon, the U-shaped portion of the change gear bracket also having wing portions integral therewith and being provided with an arcuate slot, means secured to said head end member and projecting through the 75 arcuate slot for adjustably securing the change with the change gear, a lay compound gear meshing with said change gear, a series of sprocket wheels and sprocket chains connecting the lay compound gear with the said rotatable shaft having the builder motion cam thereon, and means for transmitting rotation from the main drive shaft to the interim gears to, in turn, transmit rotation to the builder motion cam.

2. In a spinning frame, twister and the like having a head frame member and also having a builder motion and said builder motion including a builder motion cam for transmitting motion to the builder motion and a shaft rotatably mounted in the head frame member and on one end of which the builder motion cam is fixedly mounted, means for imparting rotation to the builder motion cam comprising a driven shaft, a series of sprocket chain and sprocket wheel combinations and a series of spur gears interposed between and interconnected with the series of sprocket chain and sprocket wheel combinations, driving connections between the series of sprocket chain and sprocket wheel combinations and the first-named shaft and the driven shaft, a traverse motion drive bracket for supporting at least a part of the sprocket wheel and sprocket chain combinations comprising an elongated member secured to the head frame member and having a forked portion at one end thereof and an enlarged portion intermediate the ends thereof and a raised portion at the other end thereof, a first stub shaft rotatably mounted in the forked portion, a first small sprocket wheel fixed on the first stub shaft, a second stub shaft fixedly mounted in the intermediate enlarged portion, a second and a third sprocket wheel rotatably mounted on the second stub shaft and a connection between the two last-named sprocket wheels to cause these last-named sprocket wheels to rotate in unison, said raised portion at one end of the elongated member having an opening therethrough, a third stub shaft rotatably mounted in the raised portion and extending through said opening, a fourth sprocket wheel fixed on the third stub shaft and being disposed within said opening, a fifth sprocket wheel fixed on one end of said third stub shaft and disposed exteriorly of said raised portion, a sprocket chain connecting the first small sprocket wheel with the second sprocket wheel intermediate the ends of the elongated member, another sprocket chain connecting the third sprocket wheel intermediate the ends of said elongated member with the fourth sprocket wheel, a sixth sprocket wheel fixedly mounted on the shaft on which the builder motion cam is mounted and a sprocket chain connecting the fifth sprocket wheel on the elongated member with the sixth sprocket wheel on the shaft on which the builder motion cam is mounted.

3. In a spinning frame, twister and the like having a head frame member and also having a builder motion and said builder motion including a builder motion cam for transmitting motion to the builder motion and a shaft rotatably mounted in the head frame member and on one end of which the builder motion cam is fixedly mounted, means for imparting rotation to the builder motion cam comprising a driven shaft, 9.

series of sprocket chain and sprocket wheel com binations and a series of spur gears interposed between and interconnected with the series of sprocket chain and sprocket wheel combinations, driving connections between the series of sprocket chain and sprocket wheel combinations and the first-named shaft and the driven shaft, a traverse motion drive bracket for supporting at least a part of the sprocket wheel and sprocket chain combinations comprising an elongated member secured to the headframe member and having a forked portion at one end thereof and an en-' larged portion intermediate the ends thereof and a raised portion at the other end thereof, a first stub shaft rotatably mounted in the forked portion, a first small sprocket wheel fixed on the first stub shaft, a second stub shaft ,fixedly mounted in the intermediate enlarged portion, a second and a third sprocket wheel rotatably mounted on the second stub shaft and a connection between the two last-named sprocket wheels to cause these last-named sprocket wheels to rotate in unison, said raised portion at one end of the elongated member having an opening therethrough, a third stub shaft rotatably mounted in the raised portion and extending through said opening, a fourth sprocket wheel fixed on the third stub shaft and being disposed within said opening, a fifth sprocket wheel fixed on one end of said third stub shaft and disposed exteriorly of said raised portion, a sprocket chain connecting the first small sprocket wheel with the second sprocket wheel intermediate the ends of the elongated member, another sprocket chain connecting the third sprocket wheel intermediate the ends of said elongated member with the fourth sprocket wheel, a sixth sprocket wheel fixedly mounted on the shaft on which the builder motion cam is mounted, a sprocket chain connecting the fifth sprocket wheel on the elongated member with the sixth sprocket wheel on the shaft on which the builder motion cam is mounted, a change gear bracket disposed adjacent the upper end of said traverse motion drive bracket, said head frame member having a fourth stub shaft thereon on which at least one of the gears in said train of gears is rotatably mounted, a seventh sprocket wheel rotatably mounted on said fourth stub shaft projecting from the spinning frame and a driving connection between the last-named gear and the seventh sprocket wheel, a fifth stub shaft rotatably mounted in the change gear bracket, a spur change gear fixedly mounted on said fifth stub shaft, a spur lay gear fixedly mounted on said first stub shaft disposed in the fork of said traverse motion drive bracket and intermeshing with said change gear and an eighth sprocket wheel fixedly mounted on said fifth stub shaft and a sprocket chain connecting the eighth sprocket wheel on the shaft in the change gear bracket and the seventh sprocket wheel on the stub shaft projecting from the head frame member and means for adjusting said change gear bracket and a pivotal connection between said change gear bracket and the fourth stub shaft projecting from said head end frame member so as to permit adjustment of the change gear bracket about said fourth stub shaft for accommodating various sizes of the change gears.

JESSE B. GOODGAME.

' No references cited.

Images