US1160429A - Thread-winding machine. - Google Patents

Description

W. MARLOW.

THREAD WINDING MACHINE.

APPLICATION FILEII Nov. 5. I9I2.

1,160,429.. Patented Nov. 16, 1915.

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W. MARLOW.

THREAD WINDING MACHINE.

APPLICATION FILED Nov.5. 1912.

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CDLUMBM PLANOGRAPH co.. WASHINGTON. D. C.

W. MARLUW.l

THREAD wlNnlNG MACHINE.

APPLICATION FILED NOV. 5. 1912.

Patented Nov. 16, 1915.

3 SHEETS-SHEET 3.

@5l/9mm: 747690 M777@ fffma WILLIAM MARLOW, 0F NEW YORK, N. Y., ASSIGNOR 4TO STANDARD KNITTING MILLS COMPANY, A GORPORATIQN OF NEW YGRK.

insonne.

Specification of Letters Patent.

Application filed November 5, 1912. Y Serial No. 729,592.

To all whom t may concern;

Be it known that I,"vV1LL1Ai\r MARLOW, a

citizen of the United States,and a residentv curing a uniform tension of the thread uponv the bobbin and for varying the rate at which the machine may be operated.

The bobbins ordinarily used in tknitting machinery are of a conical: form in order to permit the thread to be, easily unwound therefrom, the thread being taken through a guide located above the bobbins when the bobbins are in use on the knitting machine It is well known that 1n order to secure unl-4 formity of work and to prevent the thread upon the bobbin from becoming entangled, it is desirable to wind' the threadupon the bobbin at a uniform tension. rlhis tension should be the same at all points upon the bobbin irrespective of its diameter.Y :The winding machine, therefore, should be capa ble of increasing the tension upon the thread' when it is being wound on the smaller diameter of the bobbin 'and decreasing its tension when it is being wound upon the largerl diameter of the bobbin. ln prlormachines it has been sought to accomplish this result by putting a greater tension upon the thread.

as it comes from the swift or skein holder through the various guides tothe bobbin,

or it has been attempted to produce this result by increasing and decreasing `the speed: of the bobbin while allowing the rate of os, cillation of the buildlbar, which .controls the manner in which the threads are laid side by side upon the bobbin and the speedof the machine as a whole to remain thel same. These methods produce bad results, one of the principal of which is that the swift or skein holder tends to continue ro tating at a rate of speed appropriate to the highest rate of speed of the bobbin. lVhen the bobbinfslows down the skein holder continues to revolve by reason of its momentum thus producing a large amount, of slack thread which is apt to become entangled with itself or parts-of the machine. `Vhen the bobbin 'speedsup again this slack is first taken up, the skein holder being by that time almost stationary. By the time the slack istaken up the bobbin is again revolving at the high rate of speed and it therefore starts the skein holder revolving by a sudden pull upon thethread, which is very apt to cause breakage. It has beensought to counteract this by putting a brake upon the skein holder but such a brake if sufficiently strong to check the momentum of the skein holder will put an undue amount of strain upon the thread atl high speeds, thus causing it to break. Another serious objection to the prior methods is that if the regulation ofthe speed of the bobbin is accomplished irrespectiveV of the rate of oscillation of the build bar the threads are closer together and frequently cross one anotherat the smaller diameter of the bobbin, thus causing it to lose its proper conical shape.

A In my improved machine the regulation is referred'to the speed ofthe swift or skeinA holder, the object being to revolve the swift at approximately constant speed, which speed shall be the highest speed at which it is practicable to work the particular yarn then being operated upon. The swift, therefore, will give off the yarn at a given uniform rate, and the varying diameter of the bobbin is compensated for by increasing the rate of rotationof the bobbin while the thread is being wound upon the smaller diameter and decreasing it while itis being wound on the larger diameter, the rate of oscillation of the build bar being changed synchronously withthe change in the rate of rotation of the bobbins so that the thread is always evenly laid upon the bobbins irrespective of their rate of rotation. It is thus apparent that Athe speed of the machine as a whole is changed to give an approximately even rate of rotation of the skein holder. The thread, therefore, is always taut and always under the same tension.

It is also desirable, in order to obtain the highest efliciency from the machine, to work the machine at the highest speed that it is possible to work it, taking into consideration the thickness and character of the thread. The speed at which the spindles carrying the bobbns may be revolved and the other parts of the machine operated, therefore,

Patenten Nov. ic, reis.,

should ybe easily adjustable so that lin changing from one kind of yarn to another, an,

operator may easily change the speed of the machine in accordance with the character of' the yarn. Another desirable feature of a winding machine, in which the tension isV j The object of my invention is to provide a simple, strong and positively acting ma,-V

chine to..accon1plish all of the above `desiderata and which may be operated by more or less .unskilled operators and is unlikely to break down or. get out of order.

In the drawings accompanying this speciflcation, I have shown in Figure 1 a side view of my improved machine, parts of the machinebeing broken away. In Fig. A2 I have shown a vertical section of my improved machine along the line A-A of Fig. 1 lookingin the direction of the arrow, and

' in Fig. 3 I have shown a plan view of my improved machine with portions thereof broken away in order to ybetter illustrate the parts.

vReferring-to 1, it will be seen that my v improved machine has the usual conicalshaped bobbins, one of which is shown at 1, mounted upon ajrotating spindle 2,'which spindle is providedwith a grooved wheel 3 carrying a belt 4, which passes around the groovedwheel V5 mounted upon the spindle drive shaft 6. vIt .will beunderstood that the spindle-drive shaft extends the .entire length of the machine and that allof the other V,sets of spindles and bobbins are duplicatesfof that illustrated in the drawings.

Spindle-drive shaft Gis driven by means of a belt passing about a pulley 8, keyed to a shaft 6, and about a pulley 9 attached to a shaft 10 preferably located at or near the.

bottom of the machine. AMounted upon the shaft 10 is 'a cone pulley 11, and mounted upon the shaft 12 is another cone ,pulley 13 oppositely disposed to cone pulley 11. Fixed upon` shaft 12 is a pulley 14 over which runs a belt .15, whichV transmits the power for driving the machine. Connecting pulleys 11 vand 13 is a belt 16 which passes around both j of the pulleys 11 and 13 and through arms 17 and y18 fixed to a carriage 19, which carriage is preferably placed between the pul- ' leys 11 and 13. Carriage 19 also carries aV` jockey pulley 2O which is vertically adjustable vto take upV the slack in belt 16. Carriagek 19 is adapted to move yupon a rail 21 and may be provided with rollers or bearings for facilitating its travel. It will thus be seen that' the power used to l drive the spindles is brought in through belt 15 andV transmitted'through pulleyA 14 to cone pulley 13, beltr 16, cone pulley 11, pulley 9, beltv 7, pulley 8, shaft 6, pulley 5, 'belt 4 and pulley l3 to the spindles and it will also be seen that the rate ofrotation of the spindles depends Vupon the location of belt 16y upon cone pulleys 11 and 13 and that this position may be .alteredby shifting the carriage 19 along `rail 21.

Keyed to the end of spindledrive shaft 6 is a pulley 22 over which Vruns a belt 23,

V'which passes over another pulley 24Y located Vthe machine and extending transverselyof it, is a lever 29 which carries a roller 30 adaptedvto operate upon the face of cam 28. At theend of shaft 29, nearest the front of the machine, is attached a chain 31 which passes overa pulley 32 and is Iattached to one end of a bell-crank lever 33. 'Io the other end of the bell-crank lever is attached aV vertical rod 34 which connects the bellcrank lever 33 with the build bar 35. Appropriate connections are made to insure both build bars operating together and to insure their being lifted evenly throughout their full length. y

Located along the -upp'errsurface of the build bar and in front of each spindle' are ra plurality of screw threaded former spindles, one ,of which is shown at 36. V,Former spindles 36 carry a former 37 which operates in the usual manner by Contact with the bobbin and kwhich carries a guide 38, which guide also engages a' vertical rod 39 in order to prevent its rotation.

Located above the bobbins are the swifts or skein holders 40carrying the thread or yarn 41which passesV downward through a guide 42 over a brush cleaner 43, through a scraper .44 and through a guide 38, to bobbin .1. V

Y Geared to vshaft 27 in a one-to-one relation by means of gears 45 and 46vis a shaft 47Y carrying a-t its ,end a Abeveledlpinion 48, which meshes with a beveled gear 49 in a one-torone relation. Beveled Agear 49 is carried by shaft y50 located transversely of the main frame' of the machine, and which carries at itsend a crankl shown in the drawings in the form of a flat disk. Attached to the face of the disk at a suitable distance from the center is a crank-pin 52 on which one end of a connecting rod 53 is mounted'.

Connecting rod 53 is connected by meansof a collar and set screw 54 to a vertical oscillating rod 55 at about its center. Uscillating rod or lever 55 is pivotally connected at 56 to acollar 57 ,which collar is mounted upon a rod 58 which is attached to the main frame of the machine "by means of two brackets 59. The arrangement is such that by loosening the set screw in collar 57 it may be moved along rod 58 longitudinally of the machine so as to change the pivotal point of lever 55. Attached to the lower end of lever 55 is a connecting rod 60, the other end of which is attached to carriage 19, which has been described above.

The operation of my improved machine is as follows. The machine shown in the drawings is winding thread upon the larger diameter of the bobbin. Assuming that it is winding toward the bottom of the bobbin,

crank 51 will be rotated in the direction of rod 53 closer to the pivotal point or fulcrum the arrow and cam 28 will be turned so that roller 30 will be moving over a surface having a constantly decreasing radius. Under these conditions the chain 31 will allow build bar to fall by gravity and the connecting rod 53 and will be moved toward the left (see Fig. 1), thus oscillating lever 55 moves toward the left about pivot 56 and moves connecting rod 60 and carriage 21 thus shifting belt 16 toward the left-hand ends of pulleys 11 and 13. The left-hand diameter of cone-pulley 13 being smaller and the right-hand diameter of cone-pulley 11 being larger', the rate of rotation of the shaft 6 is decreased.v This decreases the rate of rotation of the spindle 2 and of the entire machine through pulley 22, belt 23, pulley 24, gearing 26, etc. It will thus be seen that the machine as a whole has slowed down as the diameter of bobbin 1 has decreased, thus permitting the machine to take a constant amount of thread and keeping the tension uniform. As the operation of the machine continues, build bar 36 rises and belt 16 is shifted toward the right upon cone pulleys 11 and 13, thus increasing the speed of the machine as the diameter of the bobbin decreases. When a strongerr thread is used the machine may advantageously be run at a higher average rate of speed since there is less danger of breakage of the thread and the machine will operate at higher efficiency. This is accomplished by moving collar 57 to the left (see Fig. V1) thus changing the pivotal point of lever 55. This has the effect of causing belt 16 to travel over a different portion of the conepulleys 11 and 13 from that over which it traveled when the parts were in their original positions. left moves carriage 21 and belt 16 to the right, z'. c., ytoward the larger diameter of cone-pulley 13, the average rate of speed of the machine is increased. Conversely, the

As moving collar 57 to the averagerate of speed of the machine may be` decreased by moving collar 57 tothe right along rod 58, thus causing the belt to operate kover the left-hand end of cone pulleys 11 and 13.

If collar 54 is moved upward upon the lever 55, this has the effect of increasing the length of travel of belt 16 upon the conepulleys 1 1 and 13. Inasmuch as belt 16 must travel from a given point upon the cone pulleys` 11 and 13Vto another given point and return to its original position for acomplete cycle of oscillation of build bar 35, the

rate at which belt 16 travels from the pnlleys 11 and 13 will be greater if the distance to'be traveled over is greater. Thus the speedmay be changed within greater limits and with a higher acceleration when desired. This is effected by moving collar 54 upward on oscillating rod 55 thus bringing 1the point of attachment of connecting 56, conversely where a short travel is desired on account of the characteristics of the yarn operated upon, collar 54 may be moved downward, thus bringing the point of attachment of connecting rod 53 farther from the pivotal point or fulcrum 56 of oscillating rod 55.

I am aware that many methods of practising my invention may be found and that equivalent mechanisms may no doubt be devised and I therefore do not intend to'limit myself -to the precise details shown and de scribed.

I/Vhat I claim and desire to secure by Letters Patent is:

1. In a winding machine having a main frame, speed changing means, a lever pivot- Y ed to the main frame of the machine and adapted to control the speed changing means, a build bar, a power shaft adapted to actuatebothethe build bar and the lever and means for changing the pivotalpoint of the lever upon the main frame of the machine to thereby vary the average speed of the machine.

2. In a winding machine, a power shaft, an oscillating build bar driven by the power shaft, a pair of cone pulleys connected by a belt in the line of the main drive of the machine, an oscillating lever pivoted at one end and actuated by the power shaft, means for applying the motion of said lever to shift the belt upon the pulleys, and means for changing the pivotal point of said lever to thereby change the average speed of the machine.

' 3. In a winding machine, a power sha-ft, an oscillating build bar driven by the power shaft, a pair of cone pulleys connected by a belt and located in the line of the main drive of the machine, a movable carriage engaging said belt, an oscillating lever fulcrumed at one end andV actuated from the power j copies of this 'patent may, be obtained for 'ri an' oscillating build bar driven by the power shaft, a'pair of cone pulleys connected by aV beltin the'l-in'e of the main drive of the shaftV for shifting the carriage, vand means for shifting the fulcrumY of said lever to vary the average speed of the machineV In a winding machine, a Vpower sha-ft,

machine, anf oscillatinglever Vpivotedl at one end, a link connected to said-lever for transio-r mitting motion thereto from the power shaft to shift the belton the pulleys, means for' adjusting the point of connection between said lever and said link to vary the extent'to an oscillating build bar-driven by the power shaft, a pair of cone pulleys connected by a belt in the main line of themain drive ofthe machine, an oscillatinglever pivoted at one*V end, a link connected to said lever for transmitting Y motion thereto vfrom Vthe power shaft, a movable carriage adapted to be operated by said lever to shift the belt on the pulleys, means for adjusting Vthe point of connection between said lever and said linkv to vary the extent of movement of said caiariage, and means for changingy the pivotal point of said lever to thereby change they average speed of the machine. j

' WILLIAM MARLOW. Witnesses: K

l/VALTER SJonns, WM. M. 'EARL'.

ive cents each, by addressing the Commissioner of Patents, l

Washington, 1)..0. Y Y

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