US817883A - Winding-machine. - Google Patents

Description

PATENTED APR. 1'7, 1906.

B. H. SMYTHE.

WINDING MACHINE.

APPLICATION I'ILED JUNE 24, 19o5.-

4 SHEETS-SHEET l.

No. 817,883. PATENTED APR. 17, 1906.

E. H. SMYTHE.

- WINDING MACHINE.

APPLICATION FILED JUNE 24, 1905.

4 SHEETS-SHEET 2v NO; 817,883. PATENTED APR.17, 1906. E. H. SMYTH'E.

WINDING MACHINE.

APPLICATION FILED JUNE 24, 1905.

4 SHEETSSHEET 3.

I 6/626736 5565 fnaerzfart No. 817,883. PATENTED APR.17, 1906. E. H. SMYTHE.

WINDING MACHINE.

APPLICATION FILED JUNE 24, 1905.

4 SHEETS-SHEET 4.

Z6246? kw? UNITED STATES PATENT OFFICE.

EDWIN H. SMYTHE, OF CHICAGO, ILLINOIS, ASSIGNOR TO WESTERN ELECTRIC COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

WINDING-MACHINE.

Patented April 17, 1906.

Application filed June 24,1905. Serial No. 266,760.

To all whom it may concern:

Be it known that I, EDWIN H. SMYTHE, a

citizen of the United States, residing at Chicago, in the county ofCook and State of Illi- I101S, have invented a certain new and useful Improvement in Winding-Machines, of which the following is a full, clear, concise, and exact description. 4

My invention relates to a winding-machine, being designed more particularly'for winding wires upon closed ring-cores such as are used for the so-called loading-coils of telephone-circuits.

Machines have already been devised for mechanically winding closed ring-cores, such .a machine consisting, essentially, of a s 001- ring and a winding-ring interlinked wit the core to be wound, the wire to be wound being carried upon the spool-ring and passing over a guide carried on and moving with the winding-ring, which is caused to rotate by the driving mechanism and in its rotation pulls off the wire from the spool-ring and wraps it around the core. The rincipal problem to be metin machines of this type is to have. a maximum wire carrying or storing capacity for the spool-ring with the combined crosssectional area of the spool-ring, winding-ring, and guide small enough to ass through the center of the core when t e latter isfully wound. Another problem is to rovide against the formation of slack wire. t is de sirable of course to wind the coil upon a core of the smallest possible diameter, leaving a central opening just large enough to permit the passage of the spool-ring and Windingring. In order that the wire may be Wound radially upon the core, it is of course'necessary to have the guide lead the wire through the center line of the core, and it has heretofore been necessary to restrict the size of the spool-ring, so that it will lie wholly to one side of a plane through the center of the core,

the windmg-rin occupying the space on the other side of sai plane.-

It is the object of this invention to simplify the construction of machines of this character, so that. they will be cheaper to build and will have a large capacity for wire 5 5o in proportion to the size of the aperture in the ring-core to be wound.

One of the distinctivefeatures of the marrotates the dra ment therewith is also carried along and y chine of my invention is that the guide-ring is entirely ensed with, theuide being carried upon t e spool-ring, whic 1 is directly driven instead of being merely rotated by the pull of the wire. The guide has a relative movement of rotation with respect to the spool-ring, which movement may be opposed by friction. As the spool-ring is ositively rotated it tends to carry the gui e around with it, pulling OK the wire from the spool,

the rate of slip of the guide relative to the spool-ring being determined by the rate at which the Wire is being pulled off.

In case of machines for winding closed cores, the portion of the core upon which the Wire is being applied is necessarily eccentric to the spoolr ing, because of the necessity of making the spool quite large to hold the required amount of wire. In such a machine it is evident that during one-half of each revolution there will be a tendency to pull off more wire from the (sipool-ring than can be wound upon the core min the other half of the revo uti'on, so that slac would be accu mulated. To prevent the accumulation of for positively advancing the gui e with relation to the ring to take up any slack which may be formed. For example, I may mount the guide to move very free y u on the winding-ring, but connect. the same y means of a spring with a drag which follows the same path as the guide, but has frictional engagement with the spool-ring. As the spool-ring having frictional enga ereason of the s ring connection with the guide tends to 1 said guide along also. As the wire is p ed ofi the spool, however, the guide must move relatively to the spool-ring in a direction opposite to the rotation of the latter. During one-half of the revolution when the wire is being pulled ofi the spoolring at a faster 'rate than it is wound upon the core, the U11 of the Wire upon the guide will cause sai guide to move away from the drag as far as the tension of the spring will permit and then to pull the drag along with it. During the-other half of the revolution when slack wire tends to accumulate the drag will remain stationary relative to the spool-ring, and the spring connection between the drag slack in my machine, I provide s ring means i and the guide will tend to pull the guide forward to take u the slack.

I will descri e my invention more particularly by reference to the accompanying drawings, in which Figure 1 is a plan view of a machine for winding closed cores constructed in accordance with my invention. Fig. 2 is a side elevation thereof. Fig. 3 is a detail cross-sectional view, on a larger scale, showing the mounting of the uide upon the spool-ring. Figs. 4 and 5 are detail views somewhat diagrammatic in character, showing the different relative positions of the guide and spool ring at different points in the latters rev0lu, -tion. Fig. 6 is a sectional lan view taken on a plane passing horizontal ythrough the center of the spool-ring. Fig. 7 is a detail view showing the construction of a portion of the spool-ring whereby a segment thereof may be removed to permit the spool-ring to be interlinked with the c'losedcore to be wound.

The same letters of reference are used to designate the same parts wherever they are shown.

As shown in the drawings, the spool-ring a is arranged to be positively driven by a pin ion b, enga ing an internal gear 12, and in practice will be driven at an approximately constant speed when in operation. Said pine ion is mounted upon a shaft 0, which may be rotated by a pulley c or by a handle 0 The ring a is rotatably sup orted upon rollers d d, engaging its inner sur 'ace. Aguide-blook e is mounted to slide in an annular groove a in the side of the spool-ring a, said guide-block carrying a guide e, through, which a wire may be directed from the spool-ring to the core f to be wound. As shown, this guide consists of a grooved portion or trough leading over the edge of the spool-ring and continuing in a tube which extends around the side of the spool-ring to the inner side thereof and ends in 'a bell-shaped mouth. The'gmouth of the guide from which the wire passes direct to the core is preferably located substantially in the plane transverse to the axis of the spoolring passing through the center'of the core f to be wound. As shown in the drawings, said core, f may be held in clamps g g, which are arranged to rotate the same in-a horizontal plane about its axis, so that the convolutions of wire may be applied side by side along a given are of the core. pose the clamps may be mounted in a standard h, which is arranged to be rotated-by gearing actuated by an oscillating manual ratchet-lever k.

It will be seen that as the spool-rin is rotated in the direction of the arrows in igs. 4 and 5 the guide 6 will tend to move with said ring, so that in its rotation it will wrap the wire passing through it around the core f. This will of course necessitate the wire being For this purulled off the spool, and the fore move backward relative y to the spool as the Wire is pulled off, although having a net forward movement. In other words, the spool-ring in its rotation tends to carry the guide around with it; but the guide has a relative slip dependent upon the amount of wire pulled off the spool. The distance traversed by the spool-ring in any given time is greater than the distance traversed by the guide during the same time by an amount equal to the length of wire ulled off the spool.

Since the spool-ring is 0 such lar e diameter that the core to be wound cannot e passed centrally through the axis thereof, but is eccentrically located, it is evident that during one-half of each revolution of the guide, while the guide is receding from the core an'excess of wire will be pulled off the spool. Fig. 4 shows the position of the guide at the end of such a half-revolution, in which more wire has been pulled ofl the spool than would ordinarily beapplied to the core durin the completion of t e revolution. To ta e up the slack which would otherwise tend to form, I therefore provide spring means for advancing the guide relative to the spool-ring, whilethe guide advances to the position shown in Fig. 5. In the particular ap aratus illustrated in the drawin s the guidelock e is arranged to slide quite reely in the groove 0/ of the spoolring, but the guide is connected by a coiled spring Z with a drag-block m, which is moved with greater difliculty by reason of its fric- 'tional engagement. A leaf-spring n, mounted upon the drag-block, presses against the side of the spool-ring to provide the friction. This spring may be adjusted by means of a screw n to press more or less tightly u on the spool-ring, so that the friction of the rag can be adjusted as desired. I In the operation of the device as the guide is .being rotated in a direction away from the core to pull off the wire from the spool very rapidly the tension upon the uide is such that the-spring l is considerab y extended. This condition is shown in Fi 4. Now as theguide'continues in its trave and again approaches-the core the spool-ring does not itself advance the guide fast enough to take up the slack; but the guide is positively pulled forward upon the spool-ring by the contraction of the spring Z, which thus serves to keep the wire taut. The helical spring connecting the. guide with the drag is supported at intervals along the circumferential groove or way by blocks 0 0, sliding in said groove. I

It will be understood that if the core to be wound is centrally disposed with reference to uide will therethe winding-ring there will not be an accumulation of slack during half of the revolution, but the wire will be pulled off the spool at a substantially uniform rate, so that in such case the spring and drag arrangement for the guide may be dispensed with, although it may still be desirable to equalize the tension of the wire.

In order to permit the spool-ring to be interlinked with a closed core to be wound, the ring is provided with a removable segment (1 which-may be fastened in place by screws 0, or by other suitable means. When a core is to be wound,- the segment is first removed from the ring, the core then put in position, and the segment replaced, so that the ring and core are interlinked. The spool-rin is then rotated in a direction opposite to that shown by the arrows in Figs. 4 and 5, and sufficient wire is wound upon'the spool to be transferred to the portion of the core to be wound. When the spool is completely wound the free end of the wire is passed through the guide and secured upon the core. Now upon rotating the ring in the direction shown by the arrows, the wire will be applied to the core. As before described, the core can be rotated about its axis to lay successive convolutions of wire side by side alon the segment of the core to be wound, all t e convolutions being substantially radial with reference to the core.

It will be seen that by the construction herein described, the cross-sectional area of the s ool-ring can be made very large compared to the aperture of the core through which the spool-ring must pass, so that a large quantity of wire may be contained in a spool-ring of minimum diameter.

I claim 1. In awinding-machine, the combination with a positively-driven spool-ring adapted to surround the core to be wound, of a guide adapted to convey the wire from the spool to the core, said guide being mounted to slide around the circumference of the spool-ring, while being driven frictionally thereby.

2. In a winding-machine, the combination with a rotatable spool-ring adapted to surround a core to be wound, and means for positively driving said spool-ring, of a guide adapted to convey the wire from said spool to said core, said uide bein frictionally driven by said spoo -ring but avin a slip relative thereto according to the pul of the wire passing over said guide.

3. In a winding-machine, the combination with a positively-driven spool-ring adapted to be interlinked with a closed core, of a guide for directing the wire from the spool to the core, said guide being mounted upon the ring to be rotated thereby but having a relative movement of rotation there on as the wire is unwound from the spool, vand spring means for maintaining the guide advanced upon the spool to the bi ht of the loop of wire which passes over sai ide between the spool and core, whereby sai wire is held taut.

4. Ina machine for winding closed cores,

the combination with a spool-ring adapted to tion between said drag and said guide whereby the guide is driven in the rotation ofthe spool-ring, and the wire being wound is held taut.

5. In a winding-machine, the combination with a rotating ring, of a drag rotated frictionally by said ring and having a slip relative thereto, and a guide connectedto said dra by an extensible spring, substantially as set orth.

6. In a winding-machine, the combination with a spool; ring, of means for ositively driving the same, and a guide slidab y'mounted on said spool-ring.

7. In a winding-machine, the combination with a positively-driven spool-ring havin an endless way thereon, of a guide mounte to move on said way.

8. In a winding-machine, the combination with a positively-driven spool-ring having an endless way thereon, of a friction-drag and a wire-guide mounted to move on said way,

and a resilient connection between said drag and said guide.

9; In a winding-machine, the combination with a positively-driven spool-ring, of an endless way on said spool-ring, a friction-drag and a wire-guide mounted to move on said way, a helical spring connecting said drag with said guide, and a supporting-block for.

said spring adapted to slide along said way.

10. In a winding-machine, the combination with the driving mechanism, of a spoolring adapted to be rotated at an approximately constant speed, and a frictionallydriven wire-guide adapted to be rotated at a ring.

IIO

variable speed concentrically with said 'spool- 11. In a winding-machine, the combination with the driving mechanism, of a spoolrin adapted to surround the core to be wound an to be rotated at an approximately constant speed, a frictionally-driven guide rotating concentrically with said spool-rin and adapted to convey wire from said spoo-ring to the core, and means adapted to vary the speed. of rotation of said guide, whereby the rate of transfer of wire from said spool-ring is regulated and the accumulationof slack prevented.

12. In a windin -'machine for winding closed cores, the com ination with the driving mechanism, of a spool-ring'interlinked wit the core to be wound and adapted to be rotated at an ap roximately constant speed, spool-ring is automatically regulated and the said spool-ring having Wire wound thereon, a accumulation of slack prevented. frictionally-drwen guide rotating concentric- In witness whereof I hereunto subscribe ally with said spool-ring, the wire passing from my namethis 26th day of April, A. D. 1905.

5 said spool-ring to the core to be Wound byway EDWIN H. SMYTHE.

of said guide, the pull on said wire being adapt- Witnesses a ed to vary the speed of rotation of said guide, DE WITT- C. TA'NNER, whereby the rate of transfer of wire from said IRVING MACDONALD.

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