US760669A - Winding-machine. - Google Patents

Description

I No. 760,669. QPATENTED}MAY24,1904.

Nb MODEL.

s." w. WARDWBL-L. WINDING MACHINE. APPLiUATION FILED SEPT. 16 1903.

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IN VE N TOH' ATTORNEYS PATBNTED MAY 24, 1904,

S. W. WARDWELL. WINDING MACHINE. APPLICATION FILED SEPT. 16,1963.

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N0 MODEL.

K INVENTUH WITNLESSIES LNO- 760,669. I v ,PATBNTED MAY 24, 1904.

J s. W. WARDWELL.

WINDING MACHINE.

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ATTORNEYS .m: mails mans co.. movoumo; mgumorom'tgc.

' Be it known that T, SIM N W. WARDWEFLL,

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Patented May 24, 1904.

UNITED STATES PAT T OFFICE,

F SIMON w. WARDWELL,

oFrnovm Nc RHoD -ISLAND.

y INDING- CHINE,

' SPECIFICATION forming art of Letters; Patent No. 760,669, dated May 24, 1904. Application filed September 16, 1903 Serial I lh, 17 3,4=55. (No model.)

To all whom it'mag concern:

State'ofRhode Island, havezinvented certain new and useful Improvements inv -Win'ding- Machines;--. of which the following is a. specifi- M invention relates tog-improvements in for winding. from rotating supplies, spools, bobbins, and-thelike. i My invention comprehendsimproved devices for controlling the winding/mechanism and also the delive'ryof .theimaterial wound from. its supply. 1 x

The accompanying specificationand drawings show'my invention adapted for and applied to theproduction'of magnet-coils or bobbins wound. by what is .known to the textile trade as the universal? system o fwinding. Figure 1 is a front view of a winding-machine of usual form with my improvements applied; Fig. 2, a front view of the devices for controlling the unwinding of thesupply; Fig. 3, a side view of the same; Fig. 4, a sec-' tional plan view on the line A A of Fig-.- 1, showing the deviceswforcontrolling the winding; Fig; 5, a sideview of; the inertia-wheel looking in the: direction indicated by the arrow B,-Fig. 4 ;Fig.- =6,-a view looking inthe same direction, showing :the method of supporting the inertia-wheel. Fig. 7 shows a modification of: the traverseeguide;V-Fig; 8, a plan view of a detail of ithesame. 1-, I

suchas The purpose of my-invention is, primarily,- to so control thewinding mechanlsmand the delivery of the material wound from a rotating supply that. a material like insulated .wi're may be effectively wound withoutabrading the insulation andwith such uniform tensionthat the coils ofthe packageshallbe laid with greater precision than: zismusu'al and that packages of the same length and wound with in producing magnet-bobbins. 2

ant N0. E40 ,958, dated Octoberfi, 1903,:com-

, 1 described. 1:5 winding-machines, and especially to machlnes lprisingarotating winding-spindle a and a re- :ciprocating .=traverse guide 5. The means,

whereby the relation of the winding-spindles 5 rotative speed and of the guides reciprocation i is adjusted and controlled are old, and therefore not here illustrated; butcertain improvements in the structure and operation of. the. traverse-guide and spin dlewill be hereinafter Securedto theframe of the winding-machine in a suitable manner are two rods 0, vonly one. of which is shown inthe drawings, on which is mounted the bracket d, which supports a rotative. supply device-and its controlling mechanism. i The principle of operation of the device is the same as that disclosed inmy Patent No.

740,958, dated October- 6, 1903; butcertain F structural modifications embracingimprovements .willnow be specifically set forth.

A bobbin-spindle erotates in suitable bearings in the br acket d and is provided with 5conical"wasliers,1..one fast and the other adjustable, toengage the. spool and, center itupon the spindle. abrake-wheiel f,.(shown in the drawingxas Secured to the spindle is formed onthc fixed conical washer) through which. the rotation of the supply is controlled;

A brake-shoe adapted to bear upon the pethe lower=end of-the=pin m is a spiral spring 0,. connected-at its opposite end to the lower iextremity of .the arm h. .;A suitable fingernutipoiitstheqthread of the pin on and :bears upon the lug Z.

By turning the .nut the pin Zamiis adjusted up-or down, and therebythe I tension of the springo may beregulated. 'Pivm otediat q is a bell-crank lever 7", provided with The winding machine employed is in most? respects similar to that described; in my. Pat-1 .pin's engages a slot in an extensiontof the lever .j, which is preferably-.made-of iwire bent a pins at the extremity of its lower arm. The

tions that will be described below the bellcrank lever r is shifted in position by any variation in tension of the material, andthe pin 8 swings the lever 7' about itsfulcrum, causing a change in the direction of action of the spring 0 relative to the pin 6, on which the brake-arm h is fulerumed, and a corresponding change in the degree of said action. It is obviously desirable that the spring action shall decrease more rapidly as the tension of delivery of the material increases, and therefore the slotted extension tis made of curved form, so that engaging as a cam with the pin 8 a more rapid movement of the lever 7' shall be effected as the pin 8 movesupward. Were the slotted extension t straight, the lever 1' would obviously be moved as the pin 8 rises with a retarded motion, according to the wellknown mechanical law governing crank action.

Referring to the action of the spring 0 upon the brake g, theleverage with which the-spring acts on the brake is measured by the perpendicular distance of the brakes fulcrum 71 to the line of action of the spring. Therefore were the lever 7' so shifted that the spring 0 acted in a line passing through the axis of the fulcrum 2' no effect would be produced on the brake; but were it shifted to a position at right angles to that above-defined it would act upon the brake with maximum effect.

As the spring 0 acts at all times on the arm h in a line passing through the axis of the lever 1', it suffers no change in length because of change of position, and therefore the lever j can be shifted with practically no resistance to such movement.

At the top of the bracket (Z is pivoted a second bell-crank lever u,-one arm of which is formed of a rod or wire, one portion of which, bent at right angles to the arm and passing through hearings in the bracket (Z, serves as a fulcrum for the bell-crank lever u. The other arm of the lever u is a conical sector e, fastened to the fulcrum portion of the rod and having concentric grooves w w, &c., adapted to receive a cord is, fastened at 3 on the seetor and connected at the other end to a long spiral spring 2, .anchored to the machineframe. The effect of the pull of the springs on the lever u, may be varied by adjusting the cord in the different grooves w w to change its leverage on the sector e. Further, the tension of the spring .2 may be adjusted by a novel means included in its anchorage device. (See Fig. 1.)

A cord ,2, fastened to the lower end of the spring 2, passes around a sheave 3, which is locked from rotation by the nut l, the latter having a handle 5, whereby it may be readily tightened or loosened, as desired. At the lower end of the cord is secured the weight 6, which ing-machine on a rod 22.

serves to maintain the spring at whatever tension to which it may be adjusted. The cord 2 passes once around the sheave 3, is drawn constrictively upon the latter by the combined action of the springs and the weight 6, and with the weight and spring adjusted in correct relation the friction due to this constriction suffices to resist the pull of either the weight or the spring when the sheave is locked from rotation.

To adjust the tension of the spring 2, it is only necessary to lengthen or shorten it, according as more or less tension is required, and this is accomplished by loosening the nut 4 and turning the sheave 3 to pay out or take up the cord leading to the spring.

At the opposite end of the lever to from the sector Q) is mounted a grooved pulley 7 over which the wire from the supply-spool leads on its way to the thread-guide 7). The pull of the wire acts against the tension of the spring 2 to vary the position of the lever u, and the movement of the latter is communicated to the lever through a connecting-link 8. A link 9 connects the lever '2' to a dog 10, mounted on the detent-lever 11 of the winding-machine. The downward movement of the dog 10 carries its extremity into engagement with a disk 12 on the winding-spindle, thereby forcing the detent-lever 11 outward to release the starting-lever and allow the stopping mechanism to actin a manner wellknown to those familiar with this class of machines.

Pendent from an extension of the lever w. is a detector 13, formed of wire with a hookshaped loop extremity having an opening to receive the material. The width of the opening is just suflicient for the wire to pass through, and when a knot or tangle occurs it engages the detector 13, deflects the lever u,and through the connections before described operates to stop the winding. When the tension on the wire is released, through breakage or at the finish of the winding, the springs, acting on the sector 0), draws it downward with considerable force, and to relieve the shock I provide a buffer-spring 14, fastened to the bracket (Z.

My invention also includes novel means for operating the machine by hand, a novel arrangement of inertia-wheel for controlling the winding spindle, and a novel traverseguide especially adapted for insulated wire.

The Winding-spindle a, Fig. 1, is driven through the friction-pulley 15, loose on the spindle, but engaging the latter through the clutch member 16, which when released by jthe operator is pressed into contact with the pulley by a saucer-shaped spring 17. Carried on the clutch member 16 or formed iiitegral therewith is a bevel-gear 18, which meshes with a pinion 19 on the shaft 20. This latter shaft 20 is mounted in a bracket 21, pivotally supported from the top of the wind- (See Figs. 1 and 6.)

The clutch member 16-slides on the spindle a and is held from rotation by pins 23 23, projecting from a collar 24, fast on the spindle. Rotatable on the hub of the clutch is a collar 25, having aprojection 26 engaginganopening 27 in a plate 28, fastened at the end of the bracket 21. It" will be seen'that as the clutch" 16 slides on the spindle the bracket 21, through the connections above described, is swung on its pivot-rod 22 to keep the pinion 19 always in mesh with its gear 18. The bracket 21 and plate 28 serve to coverthe pinion 19 and protect it from dust, being cut away only sufliciently to expose that portion of the pinion engaging the gear 18.

Mounted at the end of the shaft 20 is a hub 29, pinned to the shaft and serving as a bearing for the inertia-wheel 30. The wheel 30 is free to rotate ahead ofthe shaft, but is engaged to be driven thereby through a suitable clutchdevice. I preferto employ the well-known mechanism illustrated in Fig. 5,

in which a series of irolls 31 31 are mounted in pockets having inclined or eccentric faces,

which on the-turning of the. hub 29 force the rolls outward to impinge the inner surface of the hubof the inertia-wheel.

The end of the shaft 20 isof-smaller diameter than its body, and on this reduced portion is mounted the crank 32. Projecting from the hub of the crank are two small pins 33 33, adapted to engage corresponding holes in'the end of the hub-29. The hub of the crank has end play between the end of the hub 29 and the limiting-washer 34,- fastened to the end of the shaft, so that it can be readily engaged with or'disengaged from the hub 29. To keep the crank normally out of engagement with the hub 29, a light spiral spring 35' may beinterposed between the said hub and the hub of the crank. By this means the crank is prevented from rotating with the inertia-wheel, and the liability of injury to the operator is avoided.

that the insulation on the wire shall not be abraded or disturbed, and for this reason the traversing guide must be particularly resilient and yielding to passover any irregularity on the surface of the cop without material resistance. Atthe points where one coil crosses another the Wire rises up over the undercoil, and the guide must be adapted to quickly respond to such sharp bends without pressing too hard upon the wire. While the guide as ordinarily constructed can be carried out from the surface of the package by overcoming the resistance to the swinging of the guidecarry' ing or traverse frame 36, the inertia of the latter is too great to be quickly overcome, and before a relieving movement could be accomplished the wire would be crushed into the bobbin and its insulation injured. By hingi'ng the guide on the traverse-bar 37, by which it is sup ported and reciprocated I adapt it to swing In winding magnet {coils it is important independently of the traverse-frame. As

the vertical member 39, and on these is pivoted the guide-holder 40, supporting the usual guide'b. The member 39 extends upward to 36 and is bent backward and looped around ment 41. The top of the guide-holder is bent over and provided with an opening into which the end of the spring is hooked. The tension of the spring 41 is strong enough to normally resist the pressure ofthe growing package, tending toforce the traverse frame away from thespindle; but when the guide crosses araised coil on the bobbin the sudden pressure compresses the spring, forcing the guide spring then returns the guide to'the straight surface of the bobbin and maintains it always on which the new coil is being laid.

is employed. The member 39 is formedin a rectangular extension above the traverse-frame,

portion. The spring 42 surrounds the pin and extending through an opening in the member bears on the guide-holder 40. The latter also has a projecting pin to hold the arms 44 44, (see Fig. 8,) straddling the member 39 and serving asa bearing thereon to steady the upper end ofthe guide-holder.

ends which contact with the downturned portion of the member 39 to limit the movespring. This upper, bearing for the guide is of particular advantage in eliminating side ply overthe pulley 7 down through the guide I and suitably secured to the winding-spindle. In winding-magnets it isessential that the wire shall be laid uniformly throughout the bobbin. The first coils woundupon the tube or mandrel are peculiarly liable to slippage and displacement, because wire lacks that elastic constrictive adhesion which causes a yarn to retain its position on the tube.

wound wire tend to distend and loosen on the tube. -Hence the liability to slippage. The

toward the guide-holder to form a spring ele-- outward to ride over the projection. The

in close contact with that'part ofthe surface.

spring'in'position and is formed with ;two

shown in Fig. 1, two cars 38 are provided on form a bearing against the back of theframe Figs. 7 and 8 illustrate another form of guide mechanism, in which a spiral spring 42 and a pin 43 projects from the downturned The arms have right-angled portions at their of the guide-holder under the pressure of the play and-adapting the guide to lay the coils ing position. The wire is drawn from the sup- The coils of &

first coils are therefore carefully wound by hand by means of the crank 32. Then the machine is started by releasing the clutch member 16 and allowing it to engage the frictionpulley 15, which rotates at a uniform speed. Thelatter tends to immediately start the winding-spindle,but must first overcome the inertia of the wheel 30. As the starting of the wheel cannot be accomplished instantly, the clutch 16 slips in the friction-pulley 15; but the friction between the two members is sufficient to impart to the wheel a rotative impulse, then actual rotation, and gradual acceleration of rotation until its normal speed is attained. Owing to the previously-described character of the clutch device employed in connection with the inertia-wheel, it is not necessary in stopping the spindle a to overcome the impetus of said wheel; but the latter continues to rotate free of the spindle until its momentum is exhausted. When the winding is started, the pull on the material wound depresses the pulley 7 which through the medium of the connecting-link 8 shifts the lever r, which in turn shifts the lever j and relieves the pressure of the brake g on the controlling-wheel f. Should there be any tendency to unduly relieve the tension on the material wound, this will be. counteracted by the spring 2, which acts to promptly tighten any slack in the material and maintain the desired tension by controlling the action of the brake-shoe g. In case the tension increases beyond the control of the supply devices the excessive depression of the pulley 7 will through the links 8 and 9 cause the depression of the stopping-dog 10 and its engagement with the disk 12 on the windingspindle a to stop the machine. In the same manner the engagement of a knot or kink with the detector 13 serves to depress the lever a to stop thewinding.

My invention has been described as particularly applicable for magnet-winding; but one may readily see that it is likewise adapted for winding other materials, especially where great precision of winding is desired.

I do not limit myself to the precise form and arrangement of structure herein shown; but

What I do claim is 1. The combination in a tension and supply controlling device of a rotating supply, a brake-wheel, a swinging brake, a spring to engage the brake with the brake-wheel, a lever to carry the spring, a second lever shifted by variations in the tension of the material being wound and connections between the two levers whereby such variations of tension cause an accelerated or retarded change in the brake action by varying the direction of action of the spring.

2. The combination in a tension and supply controlling device of a rotating supply, a brake-wheel to control the rotation of the supply, a swinging brake, a spring rockable to vary its direction of action and alever to rock the spring, formed at one portion as a cam, a second lever shifted by fluctuations of tension of the material wound and so engaging the cam portion of the first lever as to acceleratedly diminish the brake action or retardedly reapply it as required.

3. The combination in a tension and supply controlling device, of a rotating supply, a brake-wheel, a brake, a spring to actuate the brake, a lever supporting the spring, adapted to be rocked .to vary the direction of action of the spring relative to the direction of action of the brake, a second lever operated by the resistance to the delivery of the supply and a cam element whereby the levers engage so that uniform motion imparted to the second lever shifts the first lever to release the pressure on the brake with accelerated or retarded motion.

4. The combination in a winding-maehine with a tension and supply controllingdevice, of means for varying the tension applied to the material according to the resistance to the delivery thereof, and devices where] )y an excess of resistance serves not only to relieve the tension but to arrest the operation of the machine.

5. The combination in a winding-machine with a tension and supply controlling device comprising a rotating supply, a brake to control the rotation of the supply, means for Varying the intensity of the ln'aken'essure by varying the direction of action of the force applied to the brake, relative to the direction of action of the brake, and devices whereby excessive tendency to relieve the brake-pressure acts to effect the stopping of the machilm.

6. The combination in a wimling-nuu-lline with a tension and supply controlling device comprising a rotating supply, a brake to control the rotation of the supply, a. spring to actuate the brake, means for varying the degree of action of the spring by shi ltin the d irection of its line of action, and devices controlling the stopping mechanism of the machine whereby continued action of the springcontrolling mechanism to relieve the pressure on the brake serves to stop the machine.

7. The combination in a winding-machine with a tension and supply controlling device, comprising a rotating supply, a brake, a spring acting on the brake, a lever to change the direction of action of the spring, devices acted on by variations in delivery of the material from the supply to shift the lever to release or apply the brake, and devices connecting the supply-controlling device with the machine whereby continued resistance to the delivery of the supply after the release of the brake will act to arrest the operation of the machine.

8. The combination in a whirling-machine with a winding-spimiIe and trayerseguide, and starting and stopping devices for conarrest the winding. i

9. The combinationwiththe starting and trolling the same, of a tension and supply conin the delivery of the material wound adapted torockthe first lever and a connection between the second lever and the stopping devicesof the machine whereby abnormal move ment of the lever to release the brake acts to stopping devices ofawinding-machine, com,-

prising meansto cause the arrestment of the winding, adetent-lever to maintain said means normally-inoperative and a'dog on said lever, i ofiia,v tension and supply controlling device with a rotating supply, a brake acting on the 3 supply, a spring operating the brake, a lever; to rock the spring to change its direction of action, a second lever controlled by the de- 2 livery of the material and engaging the first lever to rockit to relieve or apply the brakepressure anda connectionbetweenthe second lever and thedog whereby extreme movement of said lever shifts the dog to move the dc tent-lever and release the stopping devices of the machine.-

with stopping devices anda tension and supply controlling device, of a rotating supply,

abrake to control the rotation of the supply,

means to operate said brake with varying pressure, a lever to regulate said means, a pulley on said lever over which the material passes, a detector pendent from the lever and having a looped extremity with'an opening of just sufficient width for the material to pass through, and connections between the lever and the stopping devices of the machine whereby when a knot or kink engages thedetector on ,the lever to shift the latter, such movement the rotation of the supply, a lever regulating will cause the stopping of the machine.

11. The combination with a tension device comprising a rotating supply, means to resist said meansand controlled bythe delivery of the material, a spring acting on said lever to oppose the pull of the material, of a devicefor anchoring one end of the spring to allow adjustment of the length of the latter to vary its tensiomcomprising a sheave, a cordfastened to the spring and passing once around the sheave, a weight on said cord and means to lock the sheave against rotation. I I

12. The combination 111 a winding-machine with a rotating spindle and a'swinging guidecarrying frame movable to andfrom the spindle, of a traverse-bar reciprocating in said frame, a guide for the material, supported on said bar, and means on the bar to yieldingly press the guide toward the spindle independ- I ently of the movement of the guide-carrying frame.

" 13. The combination in a winding-machine wlth a rotating spindle and a swlnging guidecarrying frame, of a traverse-bar rc-ciprocating in said frame, a vertical member on the bar, a traverse-guide supported on saidmember and a spring, acting between the member and the guide to press the'latter yieldingly toward the spindle independently of the pressure of the guide-carrying fram Y 1 14. Thecombination in a winding-machine with a winding-spindle and a guide-carrying frame, of a reciprocating traverse-bar, a vertlcal member on said bar formed to serve as v a bearing, against the traverse-frame, a :guide as a bearing for the bar on the frame, and I formed with ears adjacent its lower extremity; and a rectangularportion at its upper extremity, a pin projecting from the downturned portion ofsaid extremity, a guide- I holder hinged on the ears and formed with 10. The combination ina winding-machine 5 two arms straddling the vertical member to serve as abearing thereon, the ends of the arms having right-angle portions. to contact with said member to limit the movement of the holder, and a spring surrounding the pin and extending through an opening in the vertical member to bear on the guide-holder.

16. The combination with arotatable spindle, of a driving-pulley rotatable on the spindle, a clutch member non-rotatableon. the spindle but adapted to slide into and out of engagement with the pulley, a bevel-gear fixed on the clutch, a pinion engaging said gear, a movable bearing for the pinion and means connecting the bearing with the clutch member, whereby the pinion is moved with the clutch to keep it always in mesh with the gear.

17. The combination with a rotatable spindle, of a driving-pulley rotatable on the spindle, a clutch member non-rotatable onthe spindle but adapted to slide into and out of engagement with the pulley, and carrying a bevel-gear, a pinion engaging said gear, a

shaft ,on which the pinionis fixed, an inertiawheel rotated by said shaft, a bracket supporting the shaft, and means connecting the bracket with the clutch member to move the former with the movement of the clutch mem-, her to keep the pinion always in engagement 6 with the gear.

18. The combination with a rotatable spindle, of a driving member rotatablethereon and formed-with a clutch-face, a clutch member non-rotatable on the spindle but slidable to engage the driving member, a bevel-gear on the clutch member, a shaft, a bearing to support the shaft with its axis at right angles to that of the spindle, a pinion on the shaft engaging the gear, a crank to turn the shaft and means connecting the clutch member to the shaftbearing whereby the latter is carried with said member to keep the pinion in mesh with its gear.

19. The combination with a rotatable spindle, of a driving member rotatable thereon, a clutch member non-rotatable but sliding on the spindle to engage the driving member, said clutch member formed with a hub and carrying a bevel-gear, a shaft, a pinion on the shaft, means to rotate the shaft manually, a swinging bracket having a bearing for the shaft and a collar rotatable on the hub of the clutch member, and formed with aprojection engaging the bracket to swing the latter with the movement of the clutch member.

20.. The combination in a winding-machine with a rotatable spindle, of a driving-pulley rotatable on the spindle, a clutch member rotatable with the spindle and adapted to slide thereon to engage the driving-pulley, said member having a hub, a collar rotatable on the hub, a bevel-gear on the member, a pinion engaging said gear, a shaft carrying the pinion, a hub, fast on the shaft and provided with clutch devices, an inertia-wheel rotatable on-the hub ahead of the shaft but driven thereby through the clutch devices, a crank rotatable on the shaft but adapted to engage the hub to rotate the shaft, a bracket having a bearing for the shaft and pivoted to swing to adapt the pinion to follow the movement of the clutch member, a plate fastened to the bracket to protect the pinion and having an opening, and a pin projecting from the collar on the clutch member to engage the opening in the plate for the purpose and in the manner substantially as described.

21. The combination with a rotatable spindle, of a driving member rotatable thereon and havinga clutch-face, aclutch member engaging the spindle to rotate it and slidable to contact with the driving member, a shaft supported in a bearing with its axis at right angles to that of the spindle, means to drive the shaft from the spindle, an inertia-wheel on the shaft, and a crank normally rotatable on the shaft but adapted to engage the latter for the purpose described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

snuoN w. WARDWELL.

Witnesses:

ARTHUR A. ARMINGTON, CHAS. A. EDDY.

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