US1599951A - Building bobbin for looms - Google Patents

Description

Sept. 14, 1926.

, 1,599,951 L. H. BROWN ET AL BUILDING BOBBIN FOR LOOMS Filed March 20 1925 .8 shats-Sheet 1 Sept. 14 1926. 1,599,951

L. H. BROWN ET AL BUILDING BOBBIN FOR LOOMS I Filed March 20, 1925 8 51 341 1, 2

se t. 14, 1926.

1,599,951 L. H. BROWN ET AL BUILDING BOBBIN FOR LOOMS Filed March 20, 1925 Sheets-Sheet 5 Sept. 14 1926.

L. H. BROWN ET AL BUILDING BOBBIN FOR LOOMS 8 Sheets-Sheet 4 Filed March 20, 1925 am new Sept. 14, 1926. 1,599,951

| H. BROWN ET AL BUILDING BCBBIN FOR LOOMS Filed March 20, 1925 a 51 1 43 1, 5

L9 LiD' Sept. 14, 1926.

L. H. BROWN ET A1.

BUILDING BOBBIN FOR LOOMS Filed March 20, 1925 8 sheets-#5119911 6 AWZ M. W. 02 92 WW 3 M aum WE; um. Hz. 1 .1 46 M WW My. 1w @2 1 1 WV 1 NZ @J v/w, .WN 1 3 v P 9, W 2 E M 0 mm z? 9 w; m4. 2 2 m u WWMWW flu on; I Maw. .UN #1 Q NU Sept. 14 1926.

' L. H. BROWN ET AL BUILDING BOBBIN FOR LOOMS Filed March 20, 1925 8 Sheets-Sheet 7 W En- E a Mawirw 6 (0 M Patented Sept. 14, 1926.

UNITED, STATES 1,599,951 ATEVNT OF LARKIN n. BROWN AND GEORGE E. nnrass, or KNOXVILLE, mnnnnssnn, ASSIGNORS 'ro mmrnn' CORPORATION, or HOPEDALE, massecnusnr'rs, a CORPORATION or MAINE.

BUILDING BOBBIN son LOOMS.

. Application filed March 20, 1925. Serial No. 17,068. 7

ondary windings or bunches may be wound upon the filling, carriers or bobbins in separated relation with the primary windings.

The object of the invention is to produce a bobbin winding which will comprise a .bunchiing adapted to actuating the feeler in a manner. which will leave on the discharged ,empty bobbin the smallest amount of waste yarn consistent with said opera-- tion. The bunching should be so built as that when the feeler is engaged to actuate, the length of yarn remaining on the bobbin will be sufficient for paying into the cloth while that bobbin remains in the shuttle. If the bobbin makes one trip between the scotching of the feeler and the discharge ofthat bobbin, the reserve length of yarn is to be twice the width of the cloth and a little more for safety.

This little more or excess is wastage. Under present practice, this wastage is relatively so large as to make, in the, aggregate, a large loss item in the operation of a mill.

In some lines of work this wastage is as much as two per cent. That means two tons of wast-age out of one hundred tons of yarn: As wastage, this material has small value. It is sold at a large loss per pound. Two

tons of yarn out of every hundred tons is an important item. According to our improvement, the bunch winding consists of a plurality of bunches,

. a primary bunch at thebase of the bobbin 40 and one or more secondary bunches located above the primary bunch in position to engage or scotch the feeler, whereby the feeler is prevented from actuating the travel or shuttle replenishing mechanism. Thus the feeler is kept out of action until the secondary bunch or bunches have been substantially eliminated by unwinding, the primary bunch being all that is left of the bunching, and that being a reserve containing a suflithe cloth until the empty bobbin has been discharged and a filled bobbin has been put into the shuttle, with such excessive length as may be deemed necessary for safety.

When a plurality of secondary bunches "ary bunches.

pose of properly positioning the secon ary are built on the bobbin, that is done for the FICE. t

purpose of insuring a bunchin position to engage the feeler under variation in relative positlon of the feeler, such variation being due to expansion or contraction or wear of parts concerned w1th the movement of the shuttle and the feeler.

Thus our improved filled bobbin comprises I a plurality of. bunching, a part beingv for enga ing the feeler and a part being reserve yarn to be paid outafter the feeler actuates.

In our improved apparatus for controlling the winding on the bobbin, to produce this improved bunching, the mechanismis duplex, one" part being for building the bunching and the other part being for the regular winding after-the bunching has been built. These two parts of the mechanism are so inter-related that when empty bobbins have been placed into the spinning frame and the machine i's'again started, the

part of the mechanism which puts the ring rail through movements for building the bunching will operate, and when that building has been completed, this part of the mechanism is automatically stopped and the mechanism. which controls the ring rail for regular winding is automatically put into action and continues until the bobbins are filled and the operator stops the entire machine.

As will more fully hereinafter appear,

provision is made for varying the space between the primary bunch, which is always at the base of the bobbin, and the first seconda-ry bunch and to make a plurality of second- This variation is for the urbunches with reference to the feeler during changes in length of travel of the shuttle through wearing of the picker by the shuttle point and through expansion and contraction in the shuttle and associated parts. At least one secondary bunch is to bein the path of the feeler. I

In the accompanying drawings, H

Figs. 1, 2, 3, and d show parts of bobbins with bunches wound thereon in accordance with the present invention; cient length of yarn to supply the yarn to -88; bf Fig. 5, looking tbward the right;

Fig. 7 is a horizontal section on the line,

10-10, of Figs. 9 and 11;

Fig. 7 is a section on the line, -10,

of Fig. 7, looking toward the left;

Fig. 8 is an upright section on the line, 11-11, of Fig. 7, looking in the direction of the arrow;

Fig. 9 is an upright section on the line,

1 12-12, of Fig. 7, looking toward the right;

Fig. 10 is an upright section on the line,

plan of the mechanism shown by Fig. 12;

Fig. 15 is an upright section on the line, 1818, of Figs. 7, 12 and 14, looking toward the right;

Fig. 15 (sheet 3) isan upright section on the hue, 18"--18, of Fig. 15;

Fig. 16 is an upright section on the line,

19.19, of Fig. 14, looking in the direction of the arrow;

Fig. 17 is an upright, transverse section on the line, 20-20, of Fig. 16, looking toward the right;

Fig. 18 is an elevation of a part of the left hand end of the machine;

Fig. 19 is a diagrammatic elevation of one form of the bunch builder cam; V

Fig. 20 is a detail showing the bunch winding done with that cam;

Fig. 21 is a diagrammatic elevation of another form of the bunch builder cam;

Fig. 22 is a detail showing the bunch winding done by that cam.

Referring to the drawings, A designates one of the bobbins. These are of ordinary form. A is the base of one of the bobbins. A are the. usual metal rings surrounding the base, A These rings engage clamp members, A in the one end of the shuttle in the well-known manner. (See Figs. 2 and In these clamps are three notches, any one of which may receive the lowest of said rings. By changing said ring from one to another of said notches, the position of the bobbin relative to the points or ends of the shuttle will be varied. Thus the distance from the base of the bobbin to either point or end of the shuttle will be varied. If the point or end of the shuttle wears a depression into the picker, that increases the endwise travel of the shuttle and changes the relation of the shuttleto the feeler. If the base or bobbin holding end of the shuttle travels farther, the sliding feeler will reach the bobbin farther from the bobbin base or head. To avoid this latter, the bobbin may be moved in the shuttle clamps, A, to bring the base of the bobbin farther from the ad jacent shuttle point. Qn Figs. 1 and 2, A is a bunch of yarn such as is ordinarily wound on the bobbin just above the base, A. On Fig. 1, the bunch, A is present, and above this bunch, A and separated therefrom, by a space is another bunch, A. For convenience in description, the bunch, A will be termed the primary bunch, While the bunch, A, is called a secondary bunch. These secondary bunches are in addition to the hunches, A heretofore used in ordinary practice. In Fig. 2, the primary bunch is smaller than in Fig. 1, and the secondary bunch. A is spaced farther from the primary bunch than is the case in Fig. 1. In Fig. 3, the primary bunch, A is again present and above it are four secondary bunches, A*. In Fig. 4, five secondary bunches, A, are placed above the primary bunch, A In this case, the primary bunch and the secondary bunches are smaller and of practically uniform size and spacing from each other. In the preceding figures, the primary bunch is larger than the secondary bunches. This variety in illustration is made for. the purpose of showing that the size and shape and spacing of these bunches may be varied as may be found best suited to obtain the de sired action through the feeler.

In Figs. 1 and 2, the single secondary bunch, A is'to be made of such size as is best adapted to control the feeler; and the space between the secondary bunch and the primary bunch is to be made suflicient to allow the feeler to enter behind the secondary bunch and be held by said bunch. F urthermore, as is shown in Fig. 2, the secondary bunch may be farther from the primary bunch than the width of the outer or working end of the feeler. The secondary bunch is to be thus placed when that is demanded by the relative positioning of the'bobbin and the feeler.

At the beginning of the winding of empty bobbins, the ring rail is in its lowest position, the position for winding at the base of the bobbins. Then, with the bobbins put into rotation for winding, the ring rail is moved up and down a distance or traverse suited to the Winding of the primary bunch,

A When that bunch has been completed, the ring rail is given a quick upward movement for a quick traverse to the place of beginning of the first secondary bunch, A".

. shape wellsuited to resist sliding of the feeler past the part of the bobbin on which that secondary bunch is located. If

another secondary hunch is to be added,

the ringrail is given a quick upward movement or traverse to bring theincoming yarn,

Y, t0 the place for starting the next secondary bunch. Then that bunch is built in the B same manner as the last secondarybunch, the ring rail being given the ,same short reciprocations. Thus any number of secondary bunches-are to be built in succession. When the last secondary bunch has been completed, theringrail is lowered to again bring the in-coming yarn, Y, to the lower part of the primary. bunch, as shown in Figs. 1, 2, 3 and 4, This completes the bunch winding, and the: bobbins are now ready for the r,egular or general winding whereby the entire bobbin is filled to the ordinary external form.,At this time the bunching part ofthe, ring rail control mechanism isautomaticallyqthrown out of action and the other part of the ring rail control mechanism is automatically thrown into action and allowed to continue until, by the regular winding, the bobbin is entirely filled, atwhich time the machine is' stopped automatically or the operator stops it by shifting the power belt or clutch through which power transmitted to the.

machine. g

In each group of the ring rail control mechanism, the main factor is a cam having an irregular Workingedge or face adapted to shift a member which is in operative relation with the 'ring rail for moving the latter into different elevations. Associated with each off-said cams are a worm gear wheel and a'worm for transmitting motion, 'to the corresponding cam. The shaft of each of said worm gears is constantly driven,

and one end of each shaft is adapted to be raised and lowered to put its worm out of and into engagement with the adjacent worm Wheel. Associated with the secondary buneh winding group of mechanism are mechanical devices for automatically raising the adjacent gear worm shaft and lowering the other gear worm shaft when the bunch building cam hascompleted one ro-. tation. The worm shaft lifting means of the two groups of mechanisms are joined to a common rock shaft, F, which is controlled by a pedal for rocking said shaft in the direction adapted to raise the worm shaft of the regular winding mechanism and lower the worm shaft of the bunch building mechanism.

For convenience in description, the part of themachine toward the observer in Fig. 7, will herein be treated as the front of the machine.

The frame of the, machine is of ordinary construction.

lifting stems or rods, D extendingdownvward slida-bly through the flanges, B of the adjacent spindle rail. I

On the upper flange, B are seated spindles, E, of usual form. These spindles are driven by. belts (not shown) appliedto pulleys, E on the spindles, which beltsare' driven from the usual longitudinal drum or similar driven member (not shown). On each spindle is placed a bobbin, A, to barotated by the spindle. The bobbin extends upward through the ring rail, D, in the usual manner, and on the ring rail around each bobbin is a ring, D for guiding the yarn, Y, to the bobbin. The height of the rail determines the height of the ring, and the height of the ring determines the height at which the yarn is delivered to and wound on the bobbin.

As above stated, the ring rail is positioned 95 by positioning the stems or lifting rods, D

Said stems are supported and moved up and down through the action of the two groups of ring rail control elements above mentioned.

Since the regular building mechanism is the simpler mechanically, that will be described before a descriptionof tln bunch builder mechanism is undertaken.

Referring to Figs. 7, 8, 14 and 15, F is a horizontal, transverse rock shaft having its ends resting in bearings, F formed in the spindle rails, 13 and B F is an arm fixed on the shaft, F, adjacent the rearspindle rail, B and extending'obliquely downward and rightward and having its free end extended under the lower flange, B

of said spindle rail to limit turning of the rock shaft contra-clockwise. Adjacent the inner face of the front spindle rail, B, a pedal, F ,:is fixed on the shaft, F, and extended obliquely downward and rightward and forward below the spindle rail.

Said pedal is to be pressed downward by the feet of the operator foriturning said rock shaft clockwise.- Near the arm, F a counter weight arm, F isfixed on the shaft,

F, and extends leftward, in the direction 2 opposite the arm, F and supports a counter Weight, F which tends to rock said shaft ontra-clockwise, in opposition to the arm, 'and the pedal, F Between the counterweight arm F, and the arm, F is a coupling arm, F, rigid on the shaft, F, and extended toward the left. On the front part of the shaft, F, next to the pedal, F isa similar coupling arm, F", also fixed on the shaft, F, and extended toward the left. At the left of and parallel to the rock shaft, F, is the cam shaft, G, seated 1n bearings, G applied to the lower faces of the spindle rails. Near the rear spindle rail, B a worm wheel, G surrounds and s fixed to the shaft, G. Above said wheel is a shaft, G, on which is a gear worm, G which is adapted to mesh with the worm wheel, G The shaft, G, extends leftward through a rocking bearing, G supported on a bracket, G. The rocking bearing is at an opening, C in the end frame, C, and the shaft, G, projects through the rocking bearing, and a sprocket wheel, G surrounds and is fixed to the projecting end of the shaft. Said sprocket wheel is constantly turned for. constantly turning said shaft,

as will be described further on.

At the right of the worm, G a'coupling block, G is mounted immovably on the worm shaft, G. A pintle, G", extends through the coupling arm, F, and said coupling block, G and the counter-we ght arm, F". When the rock shaft, F, is turned to lower the coupling arm, F the coupling block, G and that end of the worm shaft, G, are lowered to bring the worm, G into engagement with the Worm wheel, G The worm shaft, G, being constantly in motion, the worm will then turn the wheel,"-G and the cam shaft, G, until such time as the rock shaft, F, is turned clockwise by the depression of. the pedal, F whereby the counter-weight arm, F, and the coupling arm, and the coupling block, G and the adjacent end of the worm shaft are lifted, whereby the worm is lifted out of engagement with the worm wheel, G

Near the front spindle rail, the regular builder cam, G surrounds and is fixed on the shaft, G, and is constantly rotated while the worm, G is in engagement with the worm wheel, G

The cam, G is of a form heretofore in general use. Its working edge has three extensions adapted to raise and lower the ring rail three times through equal ranges. For transmission of motion from the cam to the ring rail, a bell crank structure, H, is pivoted on a horizontal shaft, H and has a horizontal arm, H extending to the lower part of the cam and supporting an anti-friction roller, H in position to bear against the working edge of the cam. Ro tation of the cam will successively depress and permit the rising of the arm, H whereby the bell crank structure is rocked. The other arm, H (f the bell crank extends upward. From the upper end of the arm, H*, a chain, H extends leftward and is coupled to a rod, H, which is coupled to the upper end of the upright rocking lever, H, which is coupled between its ends to an upright arm, I, fixed on one of the rock shafts, I, through which the ring rail lifting rods are controlled.

The bell crank structure, H, is provided with mechanism for varying the height of the attachment of the chain, H", to the upper arm, H, of said structure, whereby the pull of the chain, H, and rod, H, on the arm, H is varied to vary the height of the traverse range of the ring rail during the regular winding, whereby that winding gradually advances from the base to the upper end of the bobbin.

Since this mechanism is of ordinary form and well known, a detail description and illustration thereof are deemed unnecessary. The relation of the arm, H, to other members will be described further on.

Turning now to the bunch builder mechanism, K is an arm having a base, K resting against and secured to the inner face of the frame, C, by means of bolts, K Said arm extends horizontally toward the opposite end of the machine. Near the middle of the arm there is a hearing, K At the upper part of the base, K two ears, K extend upward. A journal, L, is seated in and fixed in the bearing, K A worm gear Wheel, L surrounds said journal and is rotatable thereon. A gear worm, L is located above and adapted to engage or mesh with said wheel. Said worm is fixed on a horizontal worm shaft, L The left hand end of said shaft extends through a rocking bearing, L, which is pivoted between the ears, K, and extends into the'opening, C in the frame. On the outer end of said shaft is fixed the sprocket wheel, L which is'constantly driven, whereby the worm shaft and the worm are constantly driven, and whereby the worm Wheel, L is constantly driven during such times as the worm is in engagement with that wheel. On the-end of the worm shaft, L is a coupling block, L, which extends into a fork, L, which is a part ofthe horizontal rocking lever, L, which is pivoted to the right hand end of the arm, K, by means of a pintle, L When the right hand end of the rocking lever, L", is moved upward, the fork, L goes downward and allows that end of the worm shaft to descend until the worm, L makes engagement with the worm wheel, L When the right handend of the rocking lever, L is pressed downwardthe fork, L rises and lifts that end of the worm shaft, whereby the worm is lifted out of engagement with the worm wheel.

The rocking lever, L is controlled by the arm, F which has already been described as being fixed on the forward end of the rock shaft, F. The arm, F, has an off-set, F

which extends across the right hand end of the rocking lever, L". A contractingspring, L serves to couple the right hand end of the lever, L to the offset part, F, of the arm, F, the upper part of said spring is hooked over the off-set part, F, of the arm, F, and the lower part of said spring is hooked into a notch, L formed on the lower edge of the arm, L When the rock shaft F, is turned clockwise, the right hand end of the lever, L will move upward and the oppositeendof said lever will move downward, whereby the worm, L will be lowered into engagement with the worm wheel, L. If the rock shaft, F, is turned in the opposite direction, the arm, F will be depressed, and that will cause the depressing of the right hand end of the lever, L", the

left hand end of said lever rising and lifting that end of the rock shaft, whereby the worm, L is lifted out of engagement with the worm wheel, L

As already described, the rock shaft, F, may be turned clockwise by depressing the pedal, F, the counter-weight, F tending at all times to turn the rock shaft in the opposite direction-contra-clockwise. From the previous. description, it will appear that the arm, F, and the arm, F", are at the same side of the rock shaft, F, and consequently both said arms move upward in unison when said shaft is turned clockwise; and, asal-.

ready described in connection with the regularv building mechanism, the lifting of the arm, F", will cause the lifting of the worm, G out of engagement with the worm gear wheel, G whereby that wheel and its shaft, G, and the cam, G are brought to rest.

By interposing the rocking lever, L be tween the arm, and the coupling block, L", the action on the worm shaft, L, relative to the action on the worm shaft, G, is reversed, so that when the shaft, G, is raised, the shaft, L, is lowered, Thus when one of the worm wheels is in motion, the other is at rest. To the free end of the arm, F, is hinged the upper end of a pawl, M, by means of a horizontal, transverse pintle, M which pawl has on its left hand edge and near its low-- er end a downward-directed shoulder, M

which is adapted to rest on a lug or shoulder, M, on thearm, K, when the arm, F, is in position to tilt the rocking lever, L to put the worm, L", into engagement with the worm wheel, L When the pawl is in this position, it resists downward pressure by the arm, F, caused by downward pressure of the counter-weight,F, already described.

The pawl is to be coupled tothe arm, F,

in such position relative to the lug or shoulder, M as to cause the pawl to tend to swing leftward. for engagement with the shoulder, M, when the pawl is raised by the raising of the arm, F. This engagementby the pawl is to continue as long as the worm not yet described, and that cam is to make only one rotation during bunch building on one set ofbobbins; hence the pawl engagement is to be in effect only during one rotation of the worm wheel. Accordingly provislon is made in connection with said wheel for at the end of each rotation automatically pushing the lower end of the pawl to free the shoulder, M from the lug, M For thus disengaging the pawl, M, alug, M, loosely surrounds the hub of the worm wheel, L, on the outer or front face of said wheel and reaches outward like a hand on a clock face. A'slotted plate, M bearing at its forward end a stop, M, is laid flatwise against the outer face of the wheel, L and is, adjustably secured thereto by means of a compels forward movement of the stop, M, whereby the stop is forced forward against the lower end of the pawl, M. The time when the engagement is made between the lug, M and the pawl may belvaried by changing the position of the lug, M". That can be done by loosening the nut, M and then shift ng the plate, M", endwise to the desired position and then again tightening said nut.

When. the lug, M, thus engages the lower end of the pawl, M, and pushes said end far enough to release the shoulder, M", from the lug, M said pawl is free to descend in response to the downward pressure of the arm, F, which pressure is, as above described, constantly exerted through the action of the counter-weight, F, on the arm, F which is right on the rock shaft, F. Such downward movement of the arm, F, causes the tilting of the rocking lever, L whereby the adjawhereby the worm, L is lifted out of engagement with the worm wheel, L This same partial turning of the rock shaft causes the downward movement of the arm, F", whereby the adjacent end of the worm shaft,

LG, is lowered, whereby the worm, G, is

lowered into engagement with the worm wheel, G. Thus the bunch building mechanism is put out of action and thel'ugnlar building mechanism is put into action The bunchbuilder cam, N, is applied to I the rear face of the worm ear wheel, L

Said cam has a hub, N 'whic surrounds the journal, L, and is of nearly the same diameter as the worm wheel and rests against and is bolted to that wheel. Thus the cam is made to rotate in unison with the worm wheel, the body of the cam being disc-form and spaced a short distance away from the To the rear face of the arm, K, is coupled the upper end of an upright oscillatory link, N. The lower part of said link has a longitudinal slot, N. On the right hand edge of said link is a lateral extension, N, on which is mounted an anti-friction roller, N", which is positioned to bear against the working edge of the cam, N. A crank wrist, N, has

a stem, N of'smaller diameter extending through the slot, N. (Fig. 12). On its rear end said stem is surrounded by a nut, N", by means of which said wrist may be set in any elevation in said slot. On the front or outer end of the wrist is a head, N. The left hand end of a connecting rod, N bears a slotted head, N, which receives the wrist,N". The extreme left hand part of the slot in said head is smaller than the head, N. The right hand part of said slot is large enough for the head, N, to pass through. Thus, when the rod is connected to the wrist, the rod may be moved leftward or the link, N moved rightward until the head, N, is in position to be passed through the larger part of the slot in the head, N. The head, N", is threaded on the rod, N and by turning said head when it is disconnected from the wrist, the head may be moved toward the right or toward the left on said rod, according to the direction in which said head is turned. After loosening the nut, N the wrist, N may be moved up or down to change the distance between said wrist and the upper pivot of said link, whereby the endwise throw of said rod by the oscillation of the link is varied.

The right hand end of the connecting rod, N is coupled to the lower end of the rocking lever, H", which, as. above described, is coupled between its ends to the upright arm, I fixed on the usual rod lifting rock shaft, I, resting in brackets, I extended downward from the spindle rails, B and B. (Fig. 16). It has already been described that the rod, H", which is actuated by the regular builder cam, is coupled to the upper end of the rocking lever, H. The rods, H and N ull in the same directiontoward the left. ut, since one of said rods is controlled by the regular builder cam and the other of said rods'is controlled by the bunch builder cam, and those cams work in alternation, it follows that those rods work in alternation, so that when one rod is ulled the other is at rest and its right han end forms a fulcrum on which the rocking lever, H rocks. Every such movement of thelever, H, causes the rocking of the arm P, to the upper end of which the middle of the lever, H is coupled. Thus every leftward movement of either the rod, H, or the rod, N will cause a leftward tilting of the upright arm, I whereby the adjacent rock shaft, I, is partially turned. e

Other rock shafts, I are similarly supported in bther brackets, I, extending downward from the spindle rails. On these shafts are upright arms, I", the upper ends of which are joined by connecting rods, 1, in the usual manner. By this means, all the rock shafts, I, are made to rock in unison, the shaft, 1, to which the rocking lever, H, is applied acting as the master shaft. 7

On each end of each shaft, I, is a horizon tal rod lifting arm, I directed toward the right and extending beneath the lower end of one of the lifting rods, D which have already been described as being slidable in the spindle rails and as supporting the ring rails. When either the rod, H or N is pulled leftward to turn the arm, I leftward. all the arms, I", are lifted, and thereby all the lifting rods, D are pushed upward, whereby the ring rails, D, are lifted in the usual manner for applying yarn tot-he bobbins according to the height of the rings, D as-is already well known in this art.

The action of the bunch builder cam will now be described.

Reference is first made to Fig. 19, which is a diagrammatic front elevation of the form of said cam suited to build a primary bunch and one secondary bunch. The roller, N", which has already been described as being mounted on the oscillating link, N is shown resting in the depression at O, which is on the short radius, and when the roller is in that position, the ring rail is in its lowest position, and the winding of yarn is at the base of'the bobbin. (See lower line, Fig. 20.)

The cam turns clockwise, as indicated by the arrow. This brings the extension, 0 into engagement with the roller, whereby the roller is pushed outward on a radius which is long enough to cause the lifting of the ring rail to the height of what is to be the upper edge of the primary bunch, A l/Vhile the cam moves from, O, to 0 the winding of the I first layer in the primary bunch proceeds. Next the roller moves inward into the depression, 0 the radius being the same as at 0. During the movement between 0 and O the ring rail descends whereby a layer of yarn is wound downward to the lower edge of the primary bunch. These movements are repeated until the roller engages atO which is again on the short radius and brings. the ring rail into its lowest position. Then from O to 0 there is a rapid outward movement which constitutes the traverse between the primary bunch and the secondary bunch, A, the rapid movement causing a sparse winding on the traverse area. Between 0 and 0 the radii diminishuntil the difference between the middle radiusand the outer radii equals the width desired for the first layer of the secondary bunch. Between 0 and 0, there are similar faces; but the difference in radii is progressively increased, in order that the range of rail movement may be progressitely slightly increased to increase the range of the winding until the secondary bunch reaches its full width. On

' downward through such downward traverse as indicated by the line and arrows, on Fig. 20. v

The pivoted lug, M, on the worm wheel, L ,*is so controlled as to push the pawl, M, out of engagement with the lug, M when the above described cycle has been completed by the arrival of the depression, Q, on the roller, N. -As already described, such disengagement of the pawl, M, permits the rocking of the rock shaft, F, by the action of the counter-weight, F whereby the worm, L is lifted and the worm, G is lowered, whereby operation is shifted from the bunch building mechanism to the regular building mechanisnnand the winding on the bobbin then proceeds in the well-known manner from the base of the bobbin to its upper end,

the regular builder cam, G causing a winding through a chosen range which is progressively raised.

' At the completion of the regular winding, the entire machine is stopped by automatic means heretofore in use or through the shifting by the operator of the power belt or clutch by means of which power is delivered.

to the machine.

When the filled bobbins have been 'removed and empty bobbins have been put into position, power is again applied to the machine and the bunch builder mechanisrh set into action by the operator depressing the pedal, F that mechanism being so held by the pawl, M. Then the bunch build-er cam, N, again makes one complete rotation, whereby the bunch building is carried through the cycle already described, after which the winding is automatically shifted to the regular building mechanism.

The action of the cam, N, of Fig. 20, may be varied as will now be described.

On the lower part of the cam, the roller, N, is shown dotted at O 0, O, O and having already passed the roller when the bunch building mechanism is put into. action. Then only the part of the cam between 0 and 0 will wind for forming the primary buncln Then the secondary bunch winding proceeds as far as O,'after which follows the traverse to O, and winding on the primary bunch is resumed and continues from O, to O, the cycle being thus completed with a second winding on the primary bunch. Thus a large primary bunch as shownin Fig; 1, may be formed. During unwinding in the loom, the second winding thus added to the primary bunch is unwound before the secondary bunch is unwound, the part prevlously wound in the primary bunch remaining as reserve after the action'of the feeler. The length of yarn in .this reserve may be varied by changing the starting point on'the rim or working face of the cam. If, for example, the reserve yarn with the roller,

N, at O, is to. be increased, the parts of v i the mechanism may be so adjusted as to place the roller at 0 when the cycle begins; and if reserve formed by starting at O? is to be diminished, the cycle may be made to begin with the roller onO. i

In Fig. 21, the cam is formed to "build the primary bunch and four secondary bunches, as illustrated by Fig. 22. For building the primary bunch, the working rim of the cam, is of the same form as in Fig. 22, excepting that this part of the rim has five instead of four extensions, the depressions, 0 and 0 being added to provide '0 is on a still longer radius. From that face there is a rapid inward traverse, 0 to O, the beginning of the cycle.

When the .roller movement has completed Next there is a the winding of the primary bunch and is on 0 there is atraverse which by sparse winding brings the yarn to the position for the first or'lowest secondary bunch. That bunch is wound while the roller is on the concentric face, .0 then traversing and bunch winding alternate while the roller passes from O, to 0, whereby the four bunches, Q of Fig. 22 are formed. Then on 0 there is. a quick traversewhich carries the am, from the upper bunch to the base of t e primary bunch. VVhen the yarn ar-. rives at that point, the bunch building mechanism goes out of action and the regular building mechanism goes into action, and

regular building begins at the base of the bobbin and proceeds upwardin theusual manner. H

We claim as our invention, 1. In a machine of the kind'described, a plurality 'of ring rail actuating mechanisms arranged to act alternately, one of said mechanisms being forthe building of a plurality of bunches, substantially as described.

2. In a machine of the kind described, 3

the combination with a ring rail lifting mechanism, of a plurality of mechanisms acting in alternation to actuate the rmg rail lifting mechanism, 'one of said mechanisms being for the building ofa plurality of bunches, substantially as'described.

3. In a machine of the kind described, the

combination with a ring rail and lifting mechanisms being for the building of a plu--.

rality of bunches, driving'meansfor one of iid mechanisms, and another driving means for another of said mechanisms, substantially as described;- 1

In a machine of the kind described. the

. combination with a ring rail and ring'rail lifting mechanism, of a plurality of mecha- .nisms acting in alternation to actuate the ring rail lifting mechanism. one of-sa'id mechanisms being for the building of a plurality of bunches, driving means for one of said mechanisms, and another driving means for another of said mechanisms, substantially as described.

.6. In a machine of the kind described, the combination with a ring rail and lifting rods and rock shafts controlling the lifting rods, of a pluralityof mechanisms for in alternation actuating s'aid rock shafts, one of said mechanisms, being for the. building of a plurality of bunches, driving means for one of said mechanisms-,and another driv-'.

ing means for another of said mechanisms, substantially as described.

7. In a machine 'ofjthe kind described, a plurality ofring rail actuating mechanisms arranged to act alternately, driving meansfor one of said mechanisms, and another driving means for another ofv said mechanisms, substantially as described.

8.111 a machine of the kind described, the combination of a ring-rail, two constantly rotating drive shafts, a ring rail actuating mechanism in operativefrelation with one of said shafts, a ring rail actuating-mecha-- nism in operativerelation' with the other of said shafts, and means for alternately connecting said mechanisms With their shafts to receive motion from said shafts, substantially as described.

9. In a machine of' the kind described,

means for moving the ring rail for plural 'bunch build ng on the bobbms, and other means for moving the ring rail for regular building on the bobbins, substantially as described.

10. In a machine of the kind described,

means for moving the ring rail for plural bunch building on the bobbins, other means for moving the ring rail for regular building on the bobbins, driving mechanism for said first means, and driving mechanism for said other means, substantially as described.

11. In a machine of the kind described, the combination of means for moving the ring rail for plural bunch building on the bobbins, and other means for re ular building on the bobbins, the bunci building means being put into motion and continuing through a predetermined movement and automatically going out of action and the regular building means going automatically into action, substantially as described.

12. In a machine of the kind described, the combination of means for moving the ring rail for plural bunch building on the bobbins, other means for regular building on the bobbins, the bunch building means 'being "put into motion and continuing through a predetermined movement and automatically going out of action and the regular building means going automatically into action, driving mechanism for sa1d first means, and driving mechanism for said othermeans, substantially as described.

13. In a machine of the kind described,the combination of means for regular building on the bobbins, and means for building bunches on the bobbins, said bunch building means including a cam which has diverse Working faces for building bunches at different elevations on the bobbins, substantially as described.

14. In a machine of the kind described, the combination of means for moving the ring rail for building a plurality of bunches on the bobbins, means for regular building onthe bobbins, controlling mechanism intervening said two building means and adapted to first put the bunch building means into motion during a predetermined period and then stopping that motion and automatically putting the regular building means into, motion, substantially as described.

' 15. In a machine of the kind described, the combination of means including a cam for moving the ring rail for building a pluralityif bunches on the bobbins, means including a can for regular building on the bobbins, controlling mechanism intervening said two building means and adapted to first put the bunch building means into motion during a predetermined period and then .the combination of means including a cam for moving the ring-rail for plural bunchbuilding on the bobbins, and other means including a cam for regular building on the bobbins, the bunch building means being put into motion and continuing through a predetermined movement and automatically going out of action and the regular building means going automatically into action, substantially as described. I

18. In a machine of the kind described, means for moving the ring rail for building a plurality of bunches, said means including a cam ,having provision for quick traverse between positions for bunches, substantially as described.

19. In a machine of the kind described, means for moving a ring rail for building bunches on bobbins, the building beginning at the base .of the bobbins and forming a bunch and then making a quick upward.

traverse to a position for a second bunch and there building a second bunch, substantially as-described.

20. In a machine ofithe kind described, means for moving a ring rail for building bunches on bobbins, the building beginning at the base: of the bobbins and forming a bunch and then making a quick upward bobbins, and other means for then moving the ring rail for regular building on the bobbins beginning at the base of the bobbins, substantially as described.

22. In a machine of the kind described, the combination of means for movin a ring rail. for building bunches on the bobbins, means for regulaigbuilding on the bobbins, worm gearing for imparting motion to one of said means, other worm gearin for imparting motion to the other of sai building means, and means for putting the first worm gearing into engagement and keeping it in ing said rock-shaft in position for keeping one of said driving mechanisms 1n action,

engagement during a predetermined movement of the bunch building means and then v automatically putting that worm gearing out of engagement and putting the second worm gearing into engagement, substantially as moving a ring rail 'for building bunches on the bobbins, means including a cam for-regular building on the bobbins, worm gearing for imparting motion to one of said means,"

means intervening the ring rail and the cams for alternately transmitting motion from the cams to the ring rail, driving mechanisms for alternately driving said cams, and a rock-shaft in operative relation with said,

driving mechanisms for alternately putting them into and out of action, substantially as described.

25. In a machine of the kind described,

the combination of a ring rail, two cams,

means intervening the ring railand the cams for alternately transmitting motion from the cams to the ring rail, driving mechanisms for alternately driving said cams, a rock-shaft in operative relation with said driving mechanisms for alternately putting them into and out of action, and a counterweightand a pedal applied to opposite sides of said rock-shaft, substantially as described.

26. In; a machine of the kind'described, the combination of a ring rail, two cams, means intervening the ring rail and the cams for alternately transmitting motion from the cams to the ring 'rail, drivin mechanisms for; alternately driving sai cams, a rock-shaft in operative relation with said driving mechanisms for alternately putting them into and out of action, a counter-weight on the rock-shaft, and an armon the rockshaft for limiting the turning of the rockshaft by the counter-weight, substantially as.

described. y

27. In a machine of the kind described, the combination of a ringrail, two cams, means intervening the ring rail and the cams for alternately transmittin motion from. the cams-to the rin rail, driving mechanisms for alternately riving said cams, a rock-shaft in operative relation with said driving mechanisms for alternately putting them into and out-of action, a pawl for holdand means associated with the adjacent cam for automatically releasing the pawl, substantially as described.

means intervening the ring rail and the cams for lternately transmitting motion from the c ms to the ring rail, cam driving mechanism comprising a gear wheel, means including a pawl for holding one of said cam 28. In a machine of the kind described, the combination of a ring rail, two cams,

' with one of said cams and said arm of the driving mechanism in action, and means controlled by said gear wheel for disengaging said pawl, substantially as described.

29. In a machine of the kind described, the combination of a ring rail, a bunch building mechanism, driving means for said mechanism, regular building mechanlsm, driving means for said mechanism, means including a pawl for holding the bunch building mechanism driving means in action, and automatic means for releasing said pawl, substantially as described.

30. In a machine of the kind described, the combination of a master rock shaft, an arm rigid on saidrock shaft, two building mechanisms, pulling means in operative relation with one of said building mechanisms and said arm of the master rock shaft, and pulling means in operative relation with the other building mechanism and said arm, substantially as described.

31. In a machine of the kind described, the combination of a master rock shaft, an arm rigid on said rock shaft, a rocking lever coupled between its endsto said arm, two building mechanisms, pulling means in operative relation with one of said building mechanisms and'one end of said rocking lever, and pulling means in operative relation with the other building mechanism and the other end of said rocking lever, substantially as described.

32. In a machine of the kind described, the combination of a master rock shaft, an arm rigid on said rock shaft, two building cams, pulling means in operative relation master rock shaft, and pulling means in operative relation with the other of said cams and said arm, substantially as described.

33. In a machine of the kind described, the combination of a master rock shaft, an arm rigid on said rock shaft, a rocking lever coupled between its ends to said arm, two building cams, pulling means in operative relation with one of said cams and one end of said. rocking lever, and pullingmeans in operative relation with the other cam and the other end of said rocking lever, substantially as described.

34. The herein-described method of wind ing yarn on a bobbin, which method consists in winding on the bobbin a plurality of separated bunches and then returning the yarn to the base of the bobbin and conducting regular winding from the base upward until the regular winding has been completed, substantially as described.

35. The herein-described method of winding yarn on a bobbin, which method consists in winding on the bobbin a plurality of separated bunches beginning at the base and then returning the yar to the base of the bobbin and conducti g regular winding from the base upward until the regular winding has been completed, substantially as described.

36. The herein-described method of operating a machine comprising a spindle rail,- spindles bearing bobbins, and a movable ring rail, which method consists in applying yarn to the bobbins through the ring rail and rotating the spindles for the rotation of the bobbins and positioning the ring rail for winding a primary bunch at the base of the bobbins, then elevating the ring rail for winding a secondary bunch on the bobbins above and separated from the primary bunch, and then moving the ring rail for regular winding until the filling of the bobbins has been completed, substantially as described. I

37. The herein-described method of operating a machine comprising a spindle rail, spindles bearing bobbins, and a movable ring rail, which method consists in applying yarn to the bobbins through the ring rail and rotating the spindles for the rotation of the bobbins and positioning the ring rail for winding a primary bunch at the base of the bobbins, then elevating the ring .rail for winding a secondary bunch on the bobbins above and separated, from the primary bunch, and'thenmoving the ring rail for regular winding, beginning at the base of the bobbins, until the filling of the bobbins has been completed, substantially as described.

In testimony whereof we have signed our" names, this sixteenth day ofMarch, in the year one thousand nine hundred and twenty- 109 LARKIN H. BROWN. GEORGE E. REPASS.

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