US548903A - Machine for winding coils - Google Patents

Description

(No Model.) 3 Sheets-Sheet 1.

J. J. WOOD. MACHINE FOR WINDING 001m.

No. 548,903. Patented Oct. 29, 1895 WITNESSES: Q INVITO By his Attorney}, j

(No Model.)

3 Sheets-Sheet 2.

J. J. WOOD. MACHINE FOR WINDING OOILS.

Patented Oct. 29, 1895.

V E IIIIIIIIIIII "1111,11,", g1 'IIIIIIIIIIIIII:

\\'li INVENTOR: @ll II I Jd nm Q. 71%;,

By his Alzomeys, mfgmm (No Model.) 3 Sheets-Sheet 3.

J. J. WOOD.

MACHINE FOR WINDING GGILS. No. 548,903. Patented 001:. 29, 1895.

WITNESSES: INVENTOR:

Jflow By his Aztameys,

I UNITED STATES PATENT OFFICE.

JAMES J. WOOb,-OF'FORT WAYNE, INDIANA.

MACHINE FOR wmome' colts.

SPEGIFICATION tbrming part of Letters Patent No. 548,903, dated October 29, 1895. Application filed March 17, 1894. Serial No. 503,969- (No model.)

.being counted by the workman as he proceeds. This invention provides a machine in the nature of a lathe for performingthe winding, with means for keeping it under the control of the operator and for automatically counting the number of turns of wire laid onto the coil. 7

My improved machine com prises a suitablymounted shaft or lathe spindle having-a faceplate or other means for attaching the spool or. coil support, and a belt-pulley or other means for driving it,with means operated by a treadle or other device for applying the driving power and for controlling a brake or check to prevent turning backward. Fixed on the lathe-spindle or connected thereto is a worm which drives an automatic counter, comprising a worm wheel and gearing communicating motion to two indicating-hands revolving around a dial like the hands of a clock, this dial being graduated to indicate the number of turns. A bell is provided for ringing when the number of turns of wire to which it has been set has been wound on. The operator has accordingly only to set the bell to ring just before the completion of the number of turns desired to be wound on the coil, and to set-.the

counter to zero when he commences winding on, and then to continue the winding rapidly by power until the bell rings, and then slowly until he has completed the exact number of turns required, as shownby the hands on the scale.

Figure l of the accompanying drawings is a left-hand side elevation of the machine. Fig. 2 is a front elevation, the driving and tightening pulleys and brake or check being shown in vertical section. Fig. 3 is a transverse section on the line 3 3 in Fig. 2, showing the counter in elevation on a larger scale. Fig. 4 is a face view of the counter lookingin the direction of the arrow 4 in Fig; 3-that is, perpendicular to the plane of the dial-plateon a still larger scale. Fig. 5 is a transverse section in a vertical plane on the line 5 5 in Fig.

4. Fig. 5 is a transverse. section of a tubuany suitable benchor framework for supportingthe machine, and B the iron frame mounted on this bench and providing bearings a a for the revolving shaft or spindle C. On one end, preferably the right-hand end of this shaft, is fixed a face-plate D or any other suitable'means for the attachment of the spool or other support on which the coil is to be wound. This spool or support is shown in dotted lines atE in Fig. 2. On the opposite end of the shaft 0 is fixed a be1t-pulley F, which drives it. This pulley is driven by a belt 1), which runs loose except when tightened against the pulley by a tightening-sheave G. This sheave is mounted to revolve loosely on a pin carried on the upper arm of an elbow-lever H, the hub of which is mounted to turn freely on the shaft 0 or on a bushing concentric with this shaft and projecting from the left-hand bearing a, or is otherwise pivotally mounted, as may be preferred. The other arm. of this lever H projects'forward, as shown in Fig. 1, and to its front end is jointed a rod 0, which extends down and is jointed at its lower end to a treadle lever T. This treadle is somewhat loosely fulcrumed at t, While its right hand end projects beyond the frame A to be acted on by the foot of the operator. A spring S is provided for drawing up the treadle, and at its right-hand end it engages with notches or overhanging shoulders in a plate cl, fastened to the frame A. This plate is shown in the sketch at the right of Fig. 2. It has three notches or overhanging shoulders marked 1, 2,'and 3, with either of which the treadle-lever may be engaged to hold it down against the spring S. When the treadlethe'tension of is pressed down and caughtunder the lower shoulder 1, the tightening-sheave G is pressed against the belt, so as to tighten the latter around the pulley F to drive the machine. This is the position of normalrunning while winding on the wire. When the treadle is in the position notch 2, the sheave so slackens the belt that the pulley F is not driven. This is the position of rest or stoppage. In this position the backward rotation of the shaft 0 is prevented by a stop device consisting ofla friction pawl or brake, (shown as a curved brake-shoe 1,) bearing against the inner face of the pulley F, and hung on a lever-arm J, pivoted to the frame B at e, on a center eccentric to the axis of rotation, so that as this arm Jvis moved in the direction tending to bring it in line with a radius drawn from the rotative axis through the pivotal center c, it acts in the-manner of one of the links of a toggle to exert a thrust, pressing the shoe I against the inner face of the pulley. The arrangement of the arm Jis such that any effort to turn the pulley F backward, which would carry the shoe 1 with it, frictionally moves the arm J thus invthe direction tending to straighten it, and thereby forces the shoe firmly against the pulley, the. thrust being transmitted through the'shoe and arm to the stud e to check the backward rotation. The brake-shoe is faced with leather or other frictional material. This friction stop or pawl has no efiect during the forward rotation of the pulley,--since the tendency at such time is to move the arm Jinto such positon as to draw back the shoe from the pulley. This friction-stop is a feature of great practical importance, since the wire is wound onto the coil under considerable'tension, which upon the slackening of the belt would act to revolve the spindle and spool backward and thereby partly unwind the wire and disturb the coil or portion of the coil already wound. It is sometimes necessary, however, to permit the shaft'to turn backward, as in case the winding has been carried a little too far, so that it is. necessary to take off a turn or two of wire or in case any mistake has been made during the winding. To provide for this I construct the machine with means for throwing the friction-stop out of action. To this end I provide the lever J with an arm j fixed to it and extending forward and having jointed to its end a link *6, which passes freely through a hole in a block or projection fon the forwardly-projecting arm of the lever H. 0n the link 'i is screwed a nut h to serve as a stop or shoulder against which the block f may strike as the leverH isthrown up ward. 1n the position shown in full lines this nut It stands somewhat above the block f, so that the friction-stopis not affected; but ifit is desired to release the shaft and permit it to turn backward, the operator elevates the shown in full lines engaged with treadle T to its uppermost position engaged by the notch 3, Fig. 2, which motion throws up the lever 11 far enough to cause the block f to encounter and displace the nut h, thereswinging the lever J around far enough to lift theshoe I out of contact with the pawl. The operator may then turn the shaft by hand in either direction freely as may benecessary. It is thus seen that the starting and stopping of the machine, and also the releasing of the friction-brake, so as to enable it to and ready control of the operator through the medium of the treadle T, so that the operator can effectually control the machine by his foot while both hands are occupied with the work of guiding the wire onto the coil.

Fixed on the shaft or spindle C is a worm K, which drives the movable parts of the counter L. This counter is supported from the frame B by a bracket-arm g, Fig. 3, to which is bolted the base frame or tripod 70 of the counter. are fixed three posts Z Z, which support the dial plate or disk M, which is fastened to these posts by screws Z, Figs. 4 and 5. In the middle of the tripod k is fastened a fixed post N, which projects up through the censxtenofthe. dial-plate M and to a considerable height above it, and carries on its upper end a stationary hell 1?. The worm K has preferably a single left-hand thread. It meshes with a large gear-wheel m, having preferably one hundred teeth. This wheel m is connected frictionally to atuhular shaft m, Fig. 5, which projects up through the dial-plate M and has fixed on its upper end a units hand or pointer dial-plate and just above its surface. The dial-plate is graduated in any suitable manas shown in Fig. 4, each space corresponding with one tooth on the wheel m and consequently with one revolution of the shaft G. If the hand Q starts at zero, it will as the shaft '0 revolves move over one space to each revo lution. A tens hand or pointer R is also provided, fixed on a tubular shaft or spindle p, turning freely around the-post N and within the tubular spindle m. The spindles m andp are geared together by any suitable gearing in the ratio of ten to one, in order that when the pointer Q executes an entire revolution covering one hundred spaces the pointer R shall move over ten spaces. To effect this l have shown a train of gears consisting of a pinion 26, fixed on or formed integrally with the spindle m and meshing with a gear 52, to which is fixed acpinion 13, the two turning freely on a fixed post q, and this pinion meshing with a gear-wheel 65, which is fixed on or formed integrally with the inner spindle p. In the construction shown the pinion 26 has twenty-six teeth, 52 has fifty-two teeth, 13 has thirteen teeth, and has sixty-five teeth,

To the three arms of this tripod Q, adapted to sweep or revolve around the ner, preferably into one hundred equal spaces,

by lifting the link il -and lever-arm j and be turned backward, are all under the instant IIO whereby the speed of rotation is reduced to one-tenth.

In order to enable the operator to turn the hands backward or forward to zero without having to correspondingly revolve the shaft 0, the gear-wheel m is not fixedly connected to the spindle m, but is connected thereto by a frictional connection forming a sort of friction-clutch. Accordingly the wheel M is unattached to the spindle m and is held frictionally between two disks 0" and r on opposite sides, which disks are pressed firmly together by a strong spring .9 acting against the disk 0 and reacting against a set collar 8', fastened to the spindle m. The disk 7 is pressed tightly onto the spindle 111/, being thus fixedly attached thereto, while the disk 4" is compelled to turn with the spindle by being formed at one side with a notch engaged by a pin projecting from the spindle m, as shown in Fig. 5*. Thus both the disks '1' and r have rotative connection with the spindle, and the wheel m, being embraced strongly between them under the tension of the spring .9, has a strong frictional engagement with them sufficient to cause the rotation of the wheel to drive the spindle, the train of gears, and the inner spindle p, and hence to drive the two hands Q and R without slipping. At the same time, however, this construction admits of the operator turning the hand Q in either direction, while the wheel m is held stationary by its engagement with the worm K. To facilitate this turning of the hands, the hand Q has fixed to it a projecting handle Q.

To operate the counter the workman has only to take hold of the handle Q and turn the hand Q around in either direction until both hands are brought to zero, as shown in Fig. 4, this being the position of the counter at the starting of the winding operation. As the winding on proceeds, the hands travel around the scale, the hand Q completing the circuit of the scale at one hundred revolutions, at which time the hand B points to 10, or being read by the inner series of numbers indicating hundreds it points to 1. The operator has only to follow the motion of the hands until they approach the number corresponding to the number of turns of wire required to be wound onto the coil, and to stop or slow up the machine as this number is approached, and, finally, to'bring the machine to the exact number of turnsindicated by the position of the hand on the dial corresponding to the required number of turns to be wound on the coil. For example, if seven hundred and forty-three turns are required, he will follow the progress of the hand R until it reaches .7 (indicating seven hundred) and will then follow the motion of the hand Q until it approaches 40, whereupon by working the treadle he will reduce the speed of the machine and wind slowly until the hand points to 43 when he will stop the windmer-arm t, which is in the form of an elbow lever having a tail t,working beween two stoppins to u, projecting downward from the arm P Fig. 9. The hammer U isconnected to the arm 2f through a flexible stem u', as usual, and the arm is pressed so as to throw the hammer toward the hell by a spring 3'. Pivoted to the hammer-arm t is a dog '0, (shown'separately. in Fig. 11,) which dog is engaged bya pin 10, projecting upwardlyfrom the hand R, to trip the dog and ring the bell. The hammer-arm t is shown in detail in Fig. 10, being flattened or reduced at c, where it is embraced by the pivotal wings or ears of the dog 22. This dog has suficient freedom of movement in either direction to enable it to rock to such a position as to free itself iiistantly from the pin to when it has been pressed back by the passage of this pin, and it is also constructed to operate in whichever direction the pin is moved. As the pin strikes the dog it first tilts it until its opposite shoulder seats itself against the corresponding shoulder on the lever t, whereupon the dog and lever act as one piece, and the pin w, by wedging against the curved outer face of the dog, thrusts back the lever t against the spring 8' and thereby thrusts the hammer in away from the bell until the instant when the pointer passes the further edge of the dog, whereupon the lever is released and the hammer flies toward the bell and strikes a single blow.

In order to enable the bell to be adjusted, so as to ring at any desired number, the hub P is made freely rotative on the post N, with means for clamping it in place in any position, so that the dog '1; may be brought to where it will be encountered by the pin w at any point around the circle at which it is desired to have the bell ring. The means for clamping the bell consists of a clamping-nut N, screwing on the threaded upper end of the post N, and serving to press together two clamping disks or washers y and y, having a non-rotative engagement with the post. The lower washer y is seated against a shoulder formed on the post, as shown in Fig. 5, and is kept from turning by being formed on one side with a notch, as shown in Fig. 7, which is engaged bya pin or key tfiprojecting from the post, as shown in the upper half of Fig. 7, which is a transverse section through the post at this point. slippedover the top of the post after the bell is placed in position, and is kept from rotating by being formed with an inwardly-pro- The upper disk y is.

a season jecting tooth y, Fig. 6, which enters a vertical slot or keyway formedin the post, as shown in Fig. 5, and at 121 in the lower half of Fig. 6, which View is a transverse section through the post taken at the disk 'y. It resuits from this construction that by loosening the clamping-nut N, the bell may be turned to any position, and will be held stationary in such position by again tightening this nut.

in order to adord an indication for guiding the operator in properly setting the bell, the

l first turn the hands to the position they should occupy at the instant he wishes the bell to ring-that is to say, for example, a half-turn or one or two turns in advance of the number of coils to oe wound onand then with the hands in this position to set the bell so that its pointera: coincides with the central mark on the band B. The bell will then ring each time that the hands reach this position, Consequently during the winding the operator has nothing to do but .to attend to the proper laying on of the wire on the coil until the bell rings,-where upon he will slow the machine and lay on the final turns slowly and carefully, as already explained. Where several coils are to be wound with the same number of turns, which is the most; frequent condition in practice, the use of the bell is highly advantageous; but if only one ortwo coils are to be wound the operator may prefer to be guided by watching the hands rather than take the trouble to set the hell.

it must not be iufer-red from the detail with which I have described the preferred construction of my invention that is shown in the drawings that my invention is limited to this particular construction, since in fact it is susceptible of. considerable modification without departing from its essential features, which are hereinafter set forth in the claims; For example, the shaft or spindle C may be driven otherwise than by a belt and pulley, and the starting and stopping may be otherwise eifected than by the use of a belt-tightener, various means for accomplishing this purpose being knownin the arts by which the starting and stopping of a machine may be controlled through the medium of a treadleor other controlling lever. The stop device for preventing backward rotation of the shaft is essentially a friction-pawl, and may be substituted by any other known and suitable construction of friction-pawl or by any other equivalent stop device acting in one direction to check back motion, while permitting afree motion in the opposite or normal direction.

Thus a chain would constitute an equivalent for the parts z',-h, andf. Instead of driving the counter by a worm on the shaft 0, it may be driven through anyother suitable sort of gearing or mechanical connection.

ll claim as my invention the following-defined novel features, substantially as herein before specified, namely:

1. The combination of a rotary shaft, a motor-device for driving said shaft, a stop-dc vice for preventing backward motion of said shaft consisting of a pawl normally engaging a flange carried by said shaft, a controlling lever operatively connected to said motor device to throw the latter on and drive the shaft when moved from an intermediate to a running position, andia mechanical connection from said lever to said stop-device adapted by an opposite movement of the lever beyond said intermediate position to release said pawl and permit the shaft to turn backward.

2. The combination of shaft 0, pulley F, belt tightener G, lever H, stop device for preventing backward motion of pulley F consisting of friction shoe 1 and lover J pivoted rec'- centrically to pulley F, and a connection between levers J and H adapted to throw out the stop device upon the movement of the lever H beyond the position in which the belt tightener is released to stop the rotation.

3. The combination of shaft 0, pulley belt tightener G, lever H, stop device consisting of friction shoe 1 and lover J, and a connection between levers J and H adapted to throw out the stop device upon the movement of the lever H, beyond the position for releasing the belt tightener with controlling treadle T connected to lever H, spring S tending to lift it, and notched plate (1 having three notches adapted to hold the treadle in either of three positions corresponding to the positions of normal running, of stoppage, and of retraction of the stop device, to permit of turning backward.

4. A machine for winding coils comprising a rotary shaft, means for driving it, means for fastening to it the spool or support for the coil being wound, and an automatic counter comprising a graduated dial plate, and a hand driven from said shaft and traveling around said plate to indicate the number of revolutions of said shaft, and a friction clutch interposed between said hand and the gearing for driving it, whereby it is driven frictionally and may be turned manually back to zero at will independently of said gearing or shaft.

5. In a machine for winding coils, the combination to form an automatic counter, of a gear-wheel driven from the winding shaft, a rotary spindle having two disks between which said gear-wheel is embraced, the one fixed to the spindle and the other movable thereon and connected theretoso as to rotate therewith, and a spring for pressing the latter disk toward the former to constitute a friction clutch coupling said gear wheel frictionally to said spindle, a hand carried by said spindle, and a stationary graduated disk over which said hand turns.

0. In a machine for winding coils, the combination to form an automatic counter, of a base-plate 70, a dial-plateM mounted thereon, a fixed post N, a tubular spindle p turning on said post and carrying a hand R and a gear-wheel 65, a tubular spindle m turning around said spindle p and carrying a hand Q and pinion 26, reducing gears 52 and 13 meshing respectively with said pinion 26 and gear-wheel 65 for driving the inner spindle from the outer one at a reduced speed, agearwheel at driven from the winding shaft, and a friction clutch applied to said spindle m and embracing said gear-wheel, whereby the spindles are driven frictionally and may be turned manually without displacing said gear.

7. In a machine for winding coils, the combination to form an automatic counter, of a stationary dial plate, a hand R revolving around said plate having a trip-pin w, gearing for driving this hand from the winding shaft, an alarm bell P and its hammer mounted on a hammer arm tand adapted to be engaged by said trip-pin w to ring the bell.

8. In a machine for winding coils, the combination to form an automatic counter, of a stationary dial plate, a hand R revolving around said plate having a trip'pin w, gearing for driving this hand from the winding shaft, 1

an alarm bell P, its hammer mounted on a hammer arm t adapted to be tripped by said pin 10 to ring the bell, an adjustable arm P carrying this hammer arm, and means for clamping it in place in different positions to cause the bell to be rung in any desired position of the hand R.

9. In a machine for Winding coils, the combination to form an automatic counter, of a dial plate M, a hand It revolving around said plate having a trip-pin w, gearing for driving this hand from the winding shaft, an alarm bell P mounted concentrically with said hand, having an arm carrying its hammer arm, and said hammer arm adapted to be actuated by said trip-pin to ring the bell, a clamp for fastening the bell in any rotative position, and a pointer 00 on the bell adapted to coincide with said hand R at the instant of ringing the bell, whereby to facilitate the setting of the bell to be rung after any desired number of revolutions.

10. In a machine for winding coils, the combination to form an automatic counter, ofa base plate is, astationary dial plate M mounted thereon, a fixed post N, a tubular spindle p turning on said post, a hand R fixed to said spindle and carrying a trip-pin w, gearing for driving this hand R from the winding shaft, an alarm bell P with its hammer arm constructed to be tripped by said pin, a hub P carrying the bell and having an arm P carrying said hammer arm and rotatively mounted on said post, and a clamping device for fixing the bell to said post in any rotative position, whereby it may be adjusted to be rung in dilferent positions of the hand R.

In witness whereof I have hereunto signed my name in the presence of two subscribing witnesses.

JAMES J. WOOD. Witnesses:

JOHN W. IIALL, WILLARD KNIGHT.

Images