US798864A - Automatic winding-machine. - Google Patents

Description

No. 798,864. PATENTBD SEPT. 5 1905. J. G. ANDERSON. AUTOMATIC WINDING MACHINE.

APPLICATION FILED JULY 16, 1904.

12 SHEETS-SHEET 1.

monzw a Gmmm co. Mamumoamw s PATENTED SEPT. 5, 1905.

J. G. ANDERSON.

AUTOMATIC WINDING MACHINE.

APPLICATION FILED JULY 16, 1904.

12 SHEETS-SHEET 2.

ytmwow No- 798,864. PATENTED SEPT. 6, 1905. J. O. ANDERSON.

AUTOMATIC WINDING MACHINE.

APPLIOATION TILED JULY 16, 1904.

12 SHEETS-SHEET 3.

Q/Vihwmco C Swvc ulioz 3:1 01121 741 a fim ilm PATENTED SEPT. 5, 1905.

J. O. ANDERSON. AUTOMATIC WINDING MACHINE.

APPLICATION FILED JULY 16, 1904.

12 SHEETS-SHEET 4.

541 uc ntoz No. 798,864. PATBNTED SEPT. 5, 1905. J. C. ANDERSON.

AUTOMATIG WINDING MACHINE.

APPLICATION FILED JULY 16. 1904.

12 SHEETS-SHEET 5.

1V1 "1 10 A3 0 i L%W W Yaw 2% W nias. wlsmcmu u c mDREW a mum m. mow'uvnucmv PATENTED SEPT. 5, 1905.

J. G. ANDERSON. AUTOMATIC WINDING MACHINE.

APPLICATION FILED JULY 16. 1904.

12 SHEETS-SHEET 8.

b a 1 7 W 2 9 twwwa No- 798,864. PATBNTED SEPT. 5, 1905. J. C. ANDERSON.

AUTOMATIC WINDING MACHINE.

APPLICATION FILED JULY 16, 1904.

12 SHEETS-SHEET 7.

qXh twzwao gwwwfoz wlto a Z I 3/? OM'WAJJ mu. m Guam co. mm-uvmcnmtn. wumnomn. a c

No. 798,864. PATENTED SEPT. 5, 1905. J. C. ANDERSON.

AUTOMATIC WINDING MACHINE.

APPLICATION FILED JULY 16, 1904.

12 SHEETS-SHEET 8.

62X) Sum whom Q%,% amid 5 Wm i wM 7m mnnzw. 5. annual m. PHmo-umocmmns. wnsxmarou. o c.

PATENTED SEPT. 5, 1905.

J. G. ANDERSON. AUTOMATIC WINDING MACHINE.

APPLICATION FILED JULY 16, 1904.

12 SHEETS-SHEET 9.

mnwew u mmuu 1:04 vnovo-umocmwsns. wnsmcmm u a No. 798,864. PATENTED SEPT. 5, 1905. J. G. ANDERSON.

AUTOMATIC WINDING MACHINE.

APPLICATION nun JULY 16. 1904.

12 SHEETS-SHEET 10.

No. 798,864. PATENTED SEPT. 5, 1905.

J. G. ANDERSON.

AUTOMATIC WINDING MACHINE.

urmoumn mun JULY 16. 1904.

12 SHEETS-SHEET 11.

mmuw n camm c0. HIOIO-LIIWAFKERS. msnmqmn. o c

PATENTED SEPT. 5, 1905.

J. G. ANDERSON.

AUTOMATIC WINDING MACHINE.

AYPLIOATIOK FILED JULY 18.1904

12 SHEETS-$3331 12.

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JAMES C. ANDERSON, OF JERSEY CITY, NEV JERSEY.

AUTOMATIC WINDING-MACHINE.

Specification of Letters Patent.

Patented Sept. 5, 1905.

Application filed July 16, 1904. Serial No. 216,824.

' ing-h laehines, of which the following is a full,

clear, and exact description.

This invention relates to machines for windin'g material in the form of fibers, filaments, strands, or strips into coils, bobbins, helices, or other formations produced by super-posing convolutions and for applying or introducing sheet material, such as paper or textile fabric, at intervals in the coil, bobbin, or helix for the purpose of separating, protecting, or restraining the convolutions thereof.

The invention hereinafter described is in the nature of an improvement upon inventions previously made by me and particularly described in Letters Patent Nos. *,583 and 654,58=L, dated July 31, 1900, and the nature of the product made on the herein-described machine is somewhat similar to the article described in another patent, No. 6%,312, issued to me February 27, 1900. The machine described in my aforesaid earlier patents was more particularly adapted for the winding of the strand material into coils of a comparatively small diameter say, for instance, up to a diameter of an inch and one-half-whereas the present improvements have been designed to produce a machine capable of winding coils as large as six to eight inches in diameter. To accomplish this larger winding, it was not only necessary to build the machine larger than before, but to provide special constructions. For instance, in the winding of large coils more material is consumed, in consequence of which the material stored upon the paying-off reels or spindles contains more ends and imperfections than would ordinarily be found upon a similar reel containing less of the material. Each end requires a stoppage of the machine and a splicing of the strand, and unless the machine can be so manipulated as to permit of the shortest possible delay at each stop the time occupied in the winding will be so great as to materially lessen the economy with which the winding operation can be performed. Hence in the present machine what is known as the back-winding operation is accomplished with the same facility as the winding operation, the back-winding being done for the purpose of unwinding from the winding-spindle that portion which is wound thereon before the machine is stopped upon the discovery of an end or imperfection in the strand. in other words, the machine must run backward with the same facility as it runs forward, and the reversal must be accomplished in the simplest manner and with the slightest manipulation on the part of the operator.

The mechanism for feeding the sheet material must be different in the larger machine from that described in the former patents, for the reason that the larger sheets cannot be satisfactorily handled by the feeding devices of the smaller machine. Likewise the compensations in the feeding and winding mechanisms for the larger diameters of coil require to be different from those previously described. Other features also require to be changed, and these will appear from the detailed description which is about to follow.

It will be understood that the present machine, like the earlier machine, is adapted to wind one or a plurality of coils simultaneously, and when more than one coil is wound the winding occurs upon the same winding-spindle, but at different positions thereon, and the sheet material, which is injected between the layers of the coil, extends throughout all of the coils on the spindle-that is to say, if live coils are being simultaneously wound one sheet or layer of the sheet material is common to all of them, it being wide enough to extend from the outer end of one terminal coil to the outer end of the other terminal coil, so that when the winding of one set of coils is completed the same must be separated by severing the various layers of sheet material occurring between the coils on planes at right angles to the winding-axis.

The work for which these machines was especially designed is the winding of electric conducting-wires into coils or helices to serve as the windings of electromagnets. In the earlier machine the plan of winding bare copper wire and a silk thread simultaneously was described, the turns of thread alternating with those of the wire to separate and insulate the latter in a direction parallel to the axis and the sheets of paper interposed between the layers to separate the turns of copper in each layer from those in the next adjacent layers. The same method of winding and insulating may be carried out in the present machine, although for the larger coils it is preferable to use previously-insulated wire, so that only a single strand leads to each of the coils. The

IIO

sheet material, however, which, as in the earlier instance, is a suitable quality of paper, is inserted between the layers, so that the winding will build up evenly and a given length of wire and number of turns of a certain size of wire can always be wound into a given cubical space. The paper furnishes an even foundation for each layer, preventing the strand from sinking between the turns over which it is being wound. The present machine is also constructed in such manner that the paper can be inserted after any number of layers of wire have been wound. Thus after two or three layers of wire have been wound the first sheet of paper may be injected to furnish a foundation for the next two or three layers, and so on throughout the coil, at the will of the operator.

The improved machine is illustrated in the accompanying drawings, in which Figure 1 is a substantially complete plan thereof, the paying-off spindles only being omitted. Fig. 2 is an elevation of the lefthand side of the machine. Fig. 3 is an elevation of the right-hand side of the machine, but showing the carriage in section. Fig. 4 is a plan of the table or frame of the machine with the carriage removed and showing the power distributing system. Fig. 4*, is a detail. Fig. 5 is a front elevation of the upper part of the frame and carriage. Fig. 6 is a section of the carriage, taken on line at w of Fig. 10 looking rearward. Fig. 7 isa section through the slide, taken on line y 3 of Fig. 10. Fig. 8 is a section of the slide, taken on line a z of Fig. 10. Fig. 9 is a fore-and-aft central section of the carriage, showing a part of the slide at the forward end of its stroke. Fig. 10 is a view similar to Fig. 9, but showing the slide at the rearward end of its stroke. Fig. 11 is an enlarged view of the front portion of the carriage and slide with the carriage in section. Fig. 12 is an enlarged detail of the mechanism for performing the reversal at the end of each layer. Fig. 13 is a perspective view of a portion of the same mechanism. Fig. 14 is a section on line q q of Fig. 12, and Fig. 15 is an enlarged section on line 8 s of Fig. l.

. Referring to the drawings, in which figures are used for reference, 1 indicates the main frame of the machine consisting, essentially, of a pedestal having a fiat table-top and provided with curved upward extensions at the front and rear. Upon the face of the table are mounted the various shafts, clutches,

gearing, &c. for transmitting and controlling the power, as will now be described with particular reference to Fig. 4.

The main shaft is indicated by 2 and runs across the machine from side to side, carrying at one end the fast pulley 3 and loose pulley 4, through which the shaft may be driven or not from a suitable source of power by shifting a driving-belt from one pulley to another in the usual manner. Upon this shaft there are four friction-clutches, which are indicated by 5, 6, 7, and 8, these clutches being of ordinary construction and operated by sliding a sleeve along the shaft in either direction to connect or disconnect the normally loose portion of the clutch with the shaft. Immediately back of the main shaft and parallel thereto is a cam-shaft 9, having four cams thereon, (indicated, respectively, by 10, 11, 12, and 13.) These cams are adapted, respectively, to throw the aforesaid clutches in or out, and for this purpose each controls a pivoted lever 14, one end of which engages with the sliding sleeve of the clutch,while the other engages with the groove of the cam. Each cam has an offset portion which occurs at a different position in its circumference from any of the other three, so that as the shaft 9 is rotated the various clutches will be operated in succession. Cam-shaft 9 is controlled by the operator from the front of the machine, at which point is located a hand-wheel 15 on the end of a shaft 16, leading to the shaft 9 and engaging therewith through spiral gears 17, so that by rotatingjsaid wheel the cam-shaft will be rotated. It is further pointed out that the offset portions of the cams are so placed that when the wheel 15 is turned in a certain dimechanisms, and it may be understood that rotation of wheel 15 in one direction serves to start the machine for winding,.while rotating the wheel in the opposite direction serves to stop the winding operation and to.

start the back-winding or unwinding operation.

, When clutch 5 is connected with the shaft, (and this is the first clutch to be c'onnectedin starting the winding operati'on,) power is communieated to counter-shaft 18 through pinions 19 and to counter-shaft 20 through pinions 21 and then through either clutch 22 or 23 to a worm-shaft 24, thence to worm-wheel 25 and its shaft 26, with which is frictionally connected a drum 27, the friction being supplied by 'a spring 28 and leather washers 29 and regulated by the nuts 30.

When clutch 6 is connected with shaft 2, which, in fact, is the second clutch to be connected when the winding operation is to be started, power is communicated to shaft 31 through the gears 32, and this shaft drives the counter sh'aft 33 through gears 34. Mo-

tion is transmitted from shaft 33 through the upwardly inclined shaft 35 and thebevel-gearing at each end thereof to the winding-spindle 36, that portion thereof which receives and forms the core of the winding being indicated by the dotted lines in Fig. 4. The rota tion of shaft 31 is also communicated, through bevel-gears 37, to the shaft 38, and thus,

through gears 39, continuously drives one member of afriction-clutch a0, the other member of which is at regular intervals during the 1 winding operation coupled thereto to rotate This clutch 47 on shaft AS, the tight member 49 of I said clutch being slidable and adapted to connect shaft $8 either with shaft 41 or look it to the bearing 50. The part T9 is moved by means of a cam 51 on shaft 16, which acts upon a bell-crank 52-. The offset in cam 51 is so placed as to disconnect shaft a8 from shaft il before the engagement of clutches 7 and S for back-winding.

On one end of shaft a8 are two diametric ally-arranged pins 53, extending parallel to the axis, for the purpose which will hereinafter appear, and on shaft 48 is also a cam 5%, which actuates a bell-crank 55 to move a link 56, and another bell-crank 57 to connect one of the clutches 22 and 2.3 with shaft 20, while disconnecting the other. It will be seen that the intermittent half-turns imparted to shaft 41, before referred to, will, in case shaft *8 is connected to 11 by the clutch A9, cause reversals of the drum 2T. Cam -14 engages the end of a lever 58, pivoted at 59 and carrying a second arm 60, engaging the annular groove in a shaft 61, mounted in bearings 62, so that it may be given slight longitudinal movements. The intermittent half-turns of shaft 41 thus cause 61 to move bodily in a longitudinal ,direction fora short distance alternately to the right and left.

Shaft 33 is provided with a worm 63, (see Fig. 15,) that is engaged by a gear 64:, turning a short shaft 65, which carries a bevelgear 66, adapted to be engaged by either of two gears 67 67, loose on a longitudinallymovable shaft 68. Fixed members 69 of two jaw-clutches are placed on shaft 68, so that by moving the shaft longitudinally one of the gears 67 is connected thereto while the other is disconnected, and vice versa, to thus reverse the direction of rotation of shaft 68 as it is driven from shaft These longitudinal movements of shaft 68 are obtained by means of a lever '70, similar to lever 58, and actuated intermittently by the cam 1L5 on shaft 11. The rotation of shaft 68 in either direction is communicated to shaft 61 through the gears 71, which remain in mesh notwithstanding the longitudinal movements of the two shafts.

Along one end of shaft 61 a screw-thread T2 is cut and carries a traveling nut '73. (See Figs. 12, 13, and 11.) This nut has pivoted to it an upwardly-inclined rod H, the function of which will be explained hereinafter. The

nut also carries a downwardly'projecting pin 75. The alternate directions of rotation of the shaft cause the nut to travel back and forth along the thread. Arranged parallel to the threaded portion of the shaft is a bar 76, carrying a rod 77, having a right-hand thread at one end and a left-hand thread at the other, upon which run nuts 78 and '79, respectively, the rod being free to turn in its bearings by hand manipulation of the nut 80 to adjust the distance between the two nuts. To prevent the nuts from rotating with the rod, they are flattened on one side and bear against the side of the bar 76. The pin 75, carried by nut 73, plays between the two nuts and strikes one or the other of them at each end of its travel. The bar 76 is mounted to move slightly in the direction of its length by being pivoted on parallel links 81 and 82, which in turn are pivoted to the top of the table or frame. This motion is imparted to the bar by the pin when it strikes one of the nuts 78 and 79. The link 82 carries a double-armed lever 83, extending in opposite direction from the pivot, each end thereof bearing against an adjustment-screw in the end of a bell-crank lever 8%, pivoted at 85, and whose other arm engages with the sliding and splined portion of the clutch &0 on shaft A1. From this construction it will be seen that whenever the bar 76 is moved by pin 75 striking either of the nuts '78 or T9 the lever Se is thrown into position in which it is shown in dotted lines, Fig. 12, and the clutch portion 10 is caused to engage with the continuously-rotating clutch portion 39 and power is applied to shaft *1. Spring 86 tends to restore lever Set to the full-line position. On the front face of bar 76 are two lugs 87 and 88, having horizontal surfaces in the same plane with each other and spaced apart a distance substantially equal to their width. Immediately above the open space between the lu 's is a third lug 89, wedge-shaped on the upper surface and with its under surface tlat and above the upper surfaces of the other two lugs. Shaft 41 is held stationary by the fact that the extremity of one of the wings at) is confined between the flat faces of lugs 87 88. \Vhen the bar 76 is moved bodily to the right or left by pin '75 engaging one of the nuts 78 T9, the lug upon which the extremity of one of the wings is resting passes to one side, permitting the wing to pass through the space between the two lugs. At the same instant the arm 84: is moved clutch 39 a0 is thrown into engagement, and shaft 41 is rotated until the extremity of the other wing drops upon the upper surface of the other lug 87 or 68, and the further rotation of the shaft is prevented, the clutch slipping if it is not in the meantime released. The extremities of the two wings are offset with respect to each other, so that one of them will engage one of the lugs, while the other will engage the other lug. This half-rotation of shaft &1 reverses the direction of rotation of shaft 61 by the action of cam 45, lever 70, and the clutches 69, so that at the moment it occurs the direction of movement of nut 73 is reversed and bar 76 is returned to its normal mid-position, as shown in full lines in Fig. 12, by the spring 86. This carries the lug 89 partially over the edge of the extremity of the wing and prevents any possible movement of shaft 41 in either direction until the bar 76 is again shifted. Lug 89 furthermore serves to direct the extremity of the wing equally upon either the lug 87 or 88, so that it will be properly positioned "notwithstanding any loose motion of the parts. At the moment of the reversal of the direction of movement of the nut 73 the cam 44 imparts an additional and quicker motion to the nut and to the entire shaft, in fact, which more quickly relieves the bar 76, allowing it to become righted promptly. This bodily movement of shaft 61 is also for another and more important purpose, which will appear later on.

Norm 46 on shaft 41 engages with a wormwheel 90 (see Fig. 2) and through gearing 91 drives a vertical shaft 92, on which there is another worm 93. Worm 93 engages a gear-segment 94 on one end of shaft 94*, on the other end of which is a lever 95. In this lever is a block 96, (shown in dotted lines,) adjustable along the length of the lever by means of a set-screw 97 and carrying a pivot on which is hung an upwardly-inclined rod 98, to be referred to hereinafter. At each half-rotation of shaft 41 lever 95 is moved slightly upward when winding.

When the operating-wheel 15 is turned to the point where cam 13 comes into play, clutch 8 is connected with shaft 2, clutch 6 being disconnected therefrom. Clutch 8 drives pinion 99, which engages an intermediate idler, and the idler in turning engages gear 100, thus reversing the direction of rotation of shaft 31 and also of the windingspindle 36 through the connections before traced.

l/Vhen cam 12 on shaft 9 is operated by turning the operating-wheel 15 to the proper point, clutch 7 is thrown in and shaft 101 is driven, and this shaft through the gears 102 and shafts 103 at the rear of the machine tion of the machine the material is simply drawn from the spindles 104, and their frictional engagement with their supports furnishes the necessary tension for the winding.

Shaft 101 carries a ratchet-wheel 105, (see Fig. 4",) which is engaged by a pawlv 106 while the normal winding operation is going on, the pawl serving to hold the shafting and gearing leading to spindles 104 stationary to prevent them from being turned by the tension of the wires drawing from the spindles 104. When the back winding operation is started by the throwing in of clutch 7, the first movement of shaft 101 lifts an arm 107, frictionally connected with said shaft,'which arm through its pin-a'nd-slot engagement with the pawl lifts and holds the latter out of the ratchet and avoids the noise and wear which would otherwise be caused by the pawl drag ging over the ratchet-teeth. The spindles 104 are mounted on two rearwardly inclined and converging frame-pieces 108, by which arrangement they best give off their strands without interference.

Above the table-top of the frame is a boatshaped carriage 109, mounted upon trunnions 110, fixed to the top of the table and adapted to tilt or swing in a fore-and-aft direction.

Along the center of this carriage and running a cross-rod 114, over which the wires from the spindles 104 lead on their way to the winding-spindle. Between elevated side pieces at the front of the carriage is supported a crossrod 115, adapted to slide longitudinally through the hearings in said side pieces and carrying between its bearings a plurality of hubs 116, (see Fig. 11,) each of which carries two arms, and in the extremities of these are hung small grooved rollers 117 and 118, said hubs being provided with set-screws 111*, by which their position on the shaft can be altered. These rollers serve as guides for the wires or strands leading to the windingspindle 36, and as many sets of them are in use at a given time as there are coils being simultaneously-wound upon the spindle. The rod 115 extends through the right-hand side of the carriage and engages, by means of a pivot-sleeve 119, with the forward end of rod 7 4, the opposite end of which, as before explained, is pivoted to the traveling nut 73 on shaft 61. rod passes through a sleeve 120, pivoted to a small slide 121, adapted to be adjusted along a block 122, fixed to the outside of the carriage. From this construction it will be seen that the back-and-forth movements of the nut 73 are communicated to the rod 115, causing it to rock on its pivot. The motion is com- IIO The intermediate portion of said paratively slow and serves to lead the wires along the wini'ling-spindle to form the layers.

ment being accomplished in a well-understood manner by means of the screw 123. A handwheel 187 on shaft 61 enables the operator to shift rod 115 by hand slightly wheneve'r necessary in correcting imperfections in winding.

At the extreme front of the carriage is a table 125 reaching out toward and above the winding-spindle. The rod 98, which is given iiiterinittent upward movement by the lever 95, is connected at its upper end by means of a hinge to the front of the carriage, so that the said upward movements are imparted to the front end of the carriage.

Mounted upon the backbone or track 111 is a slide 126, consisting. essentially. of two upright side pieces embracing the lateral edges of the track and a cross-piece resting upon the upper surface of the track. Along the middle and under side of the track is a ratchetbar 127 with its teeth pointing downward and forward, and on a cross-shaft 128 in the slide is hung a pawl 129, having a number of teeth adapted to swing upward and engage the ratchet-bar to prevent rearward movement of the slide. On shaft 128 with the pawl is a forwardly-extending arm 130, arranged outside of the slide and carrying at its extremity a pin or roller 131, (see Fig. 11,) resting by its weight upon the upper edge of a plate 132. This plate is arranged parallel to the righthand side of the slide and is hung upon one arm of each of two bell-cranks 133 and 131,

the other arms of which are connected to- 1 gether by a bar 135, so that when either bellcrank is moved the upper edge of the plate 132 will be maintained in a parallel though different position.

nected by a link 136 to the main frame 1. From this construction it will be seen that as the carriage 109 is tilted on its truniiions the 1 as the slide traverses to the rear until finally the pawl has been lifted into engagement with the ratchet. On another cross-shaft 137 in the lower part of the slide are mounted the upwaidly-extending and outwardly-deflected arms 13S and 139, (see Fig. 7,) together forming a yoke between the extremities of which is pivotally hung a plate 110. Arm 139 has a lug 139*. This plate 1 10 leads forward and carries at its forward edge two rubber-covl The bell-crank 131 has a third arm, as shown in Fig. 3, which is conl i l l ered rollers 111 and 112, the latter being i spring-pressed upon a table 113, extending The ad iistinent of the slide 121 permits of a change in the length of the layers, the ad iistacross the top of the slide and m erhanging the same on both sides. The arms 13S and 139 are normally drawn rearward by a spring 1111*. The table .113 may be known as the u paper-feeding table," since the sheet of paper is extended and fed across its surface. Roller 112 rests in contact with the table throughout its length, and in order that uniformity of contact between the roller and table may be maintained throughout notwithstanding its comparatively great width, so that its grip upon the paper will be uniform, the table is made to rest along its center line upon the upper edge of a web 111, rising from the cross-piece of the slide. The table is free to rock upon this web to a limited extent. the set-screws 115 ali'ording this movement. As the roller moves across the face of the table the latter assumes a position responsive to the pressure of the roller, with the result that the paper is moved smoothly and uniformly across the feeding-table. It will be understood that roller 112 has a ratchet-and-pawl arrangement at one end to prevent it from turning when moving forward and permitting it to turn when moving rearward, such rollers being fully described in the prior patents. At the forward edge of the feeding-table is a crossbar 116, located slightly above the table edge, affording a space for the paper to pass through and the bar forming acuttingedge with which the knife hereinafter described cooperates.

In the upper portion of the slide is mounted another cross-shaft 117, the extremities of which pass outside of the slide and carry forwardly-reaching arms 118, which are riveted to the rear face of the knife 119. Shaft 117 also carries at one end a downwardly-reaching arm 150, provided with a lug 151 and drawn rearward by a spring 150*. Near j the center of the slide another shaft 152 is mounted, its extremities projecting through the side pieces and carrying on its intermediate portion two tight drums 153 and 151.

, To the periphery of drum 153 is attached a metal tape 155, which leads thence over the through drum 2? and tape 155.

top of the drum to the extreme rear end of the carriage, where it passes over the guidepulley 156 and thence downward and partially around the drum 27, mounted, as described, upon the main frame of the machine. The end of this tape is pivotally connected with the periphery of drum 2?, so that when fully unwound it can readily reverse and permit the drum to continue its rotation in the same direction. The power to pull slide 126 rearward along its track is thus communicated To the drum 151 is attached another tape or cord 157, which is led thereover in a direction opposed to the tape on drum 153 and thence forward to the extreme front of the carriage, where it passes over a guide-pulley 15S, and

thence rearward to a pulley 159 on the main frameof the machine, and finally downward to a weight 160. With this training of the tapes from two pulleys on shaft 152 it will be seen that weight 160 opposes the rearward pull of the power upon the slide. The weight is adjusted to be substantially equal to the force necessary to overcome the friction of the slide, in consequence of which when power is applied to drum 27 the slide is moved backward without rotating shaft 152, the weight being meanwhile lifted. The forward movement of the'slide is permitted by a reversal of drum 27 and accomplished by the weight 160. On the extremities of shaft 152 outside of the slide are fixed the crankarms 161 and 162, the former carrying a pin adapted to impinge against lug 151 on the knife-operating arm 150 and the latter having a pin adapted to engage the lug 139"" on arm 139, which actuates the paper-feeding roller 142. These operations occur after the slide has come to rest at either end of its movement, as will more fully appear in the description of the operation.

The shaft of pulley 158 extends to the outside ofthe carriage and carries a crank-arm 163, (see Fig. 2,) which is frictionally connected therewith. At the end of the crankarm is a pin adapted to engage a hook in a short link 164, said link being attached to the lower end of a lever 165, secured to one-end of a cross-shaft 166, extending across the carriage and carrying at each end an arm 167, reaching forward and supporting the journals of another cross-shaft 168. On this latter cross-shaft are pivotally hung two arms 169, forming a hook to carry between their lower ends a rubber-covered roller 170, (fitted with a pawl and ratchet,) which normally rests upon the table 125; but when the pulley 158 causes the crank-arm 163 to engage the. hook carried at the end of lever 165 the roller 170 is lifted. The movement of crank 163 with the shaft of roller 158 is limited by a stoppin 171 in the carriage, so that after the roller 170 has been lifted the further rotation of pulley 158 does not affect it.

At the middle point of shaft 168 is fixed a hub 172, carrying a crank 173, the end of which connects with a link 174, leading to a crank on another shaft 175, having its bearings in the sides of the carriage and carrying on its left-hand extremity a crank 176, connected with a long link 177, leading downwardly and rearwardly toward the axis of the carriage and there connecting with a bellcrank 178, pivoted to the carriage, an arm of which carries a hinged hook 179 normally in engagement with the under side of one' of the pins 53 in the end of shaft 48 on the table'- top. This shaft, as before explained, partakes of an intermittent half-rotation. hen each movement occurs, the pin in engagement with the hook pulls suddenly upon the bellcrank and immediately releases it, the pin running out of engagement with the book, as indicated in the dotted lines, Fig. 10. This causes a quick forward-and-back movement to be imparted to the rubber-covered roller 170, the purpose of which will appear in the description of the operation.

At the extreme forward end of the carriage is mounted a cross-shaft 180, from each endof which depends an arm 1'81, carrying at its lower end a link, between which is hung a roller 182. This roller normally rests upon the winding-spindle or upon the outer sur-- face of the coils being wound thereon and should always occupy a position upon said coils immediately forward of the tangent point of the wires leading to the coils. In order to maintain this relative position, the

- roller'must be moved outward to compensate for any upward movement of the forward end of the carriage, and this is accomplished by means of a crank 183 on shaft18'0, connected with a link 184, pivoted to the top of the table, as clearly show-n in Fig. 3. Thuswhen-' ever the carriage moves upward shaft 180 is rocked and the roller 182 correspondingly moved forward.

The operation of the machine is as follows: Assuming that the wires from one or more of the spindles 104 have been led over the guide 114 and over the front of pulley 117 and back of the pulley 118 and attached to the winding-spindle 36, the machine is started by turning hand-wheel 1-5 to the left to its first position. This throws in clutch 5 and puts theslide 126 into motion, pinion 47 being already connected with shaft 48 through clutch member 49. Then by continuing the rotation of wheel 15 in the same direction to its second point or position clutch 6 is thrown in and this rotates the Winding-spindle 36, as well as shaft 61 and shaft 38. Shaft 61causes rod 74 to swing, and the leads of the wires are slowly moved along the winding-spindle simultaneously with the winding operation to form the layer. Considering the slide to be at its forward position and the layer to be half finished, the rotation of drum 27 winds up tape 155 and the slide 126'is drawn from its forward position toward the rear.

When the first layer is being wound, the front of the carriage is in its lowest position, in consequence of which the pin 131, resting upon the edge of plate 132, permits the pawl 129 to engage the ratchet 127 early in its rearward movement, and the slide is brought to a stop after making a short movement. The layer of winding, however, being unfinished, the movement of the-machine continues, and drum 27 continues to wind up the tape 155, this further movement, however, being accompanied by the rotation of shaft 152, which before was stationary, owing to the opposing pull of the weight. This rotation of the shaft 152 carries the crank 161 against the lug on arm 150 and swings the knife 1 19 upward to the position shown in Fig. 10 to cut off the paper, after which, the layer of winding being completed, the pin 75 on the traveling nut 73 strikes the nut '78 or 79 and in the manner before described releases the end of the wing 12 and at the same time connects the clutch member 10 with the rotating member 39, imparting a half-turn to shaft 11. This movement, which occurs in an instant, accomplishes a number of things. The direction of rotation of drum 27 is changed by means of clutches 22 25 and the connections to shaft 18, the direction of rotation of shaft 61 is reversed tl'n'ough the lever and the clutches 67, and the shaft is at the same time given a slight extra longitudinal movement, the front of the carriage is lifted a distance equal to the thickness of one layer through the worm 16, and the pin 53 on the end of shaft 18 actuates the hook 179, and this in turn aetuates roller 170 and ejects the forward edge of the paper toward the winding-spindle, where it is caught by the leads'of the wires and by the roller 182 and wound over the finished layers. The extra movement given to shaft 61 is imparted to the rod 115, carrying the thread-guides, and serves to incline the leads in a direction toward which the new layer is to be built up and also prevents more than one turn from being wound on top of the last turn of the finished layer. The reversal of drum 27 allows weight 160 to pullthe slide forward, and the slide is in this manner drawn up against the forward end of the carriage, as shown in Fig. 11. The moment the slide commences to move forward the rotation of pulley 158 carries crank 163 on its shaft into engagement with hook 161, and the roller 170 is thereby lifted. the crank coming to a stop against its limit-pin 171 and thereafter slipping during the further rotation of the pulley 158. Roller 170 is therefore held elevated until the slide reaches the forward end of its movement. \Vhen the slide is about to start forward under the action of the weight, the spring 150 attached to arm 150, pulls said arm against the pin in crank 161, causing the knife to lower, during which the drums 153 and 151 rotate and the slide remains stationary; but when the knife is fully down, the balance between the weight and the power being again undisturbed, the slide commences to move forward and continues until it strikes the front end of the carriage. At the instant the slide comes to rest against the front of the carriage the end of tape 155 is fully unwound and passes across the center of drum 2? on the side nearest the pulley 156. The weight then having no opposition rotates shaft 152 in the opposite di' rection. Crank 162 strikes arm 139 and throws paper-feeding roller 112 forward, the severed edge of the paper immediately above bar 1 16 being thereby thrust forward onto table in the position shown in dotted lines in Fig.

11. The rotation of drum 27 continuing, crank 163 releases hook 164 and allows roller 171 to drop upon the projecting end of the paper and hold it in position upon the table 125. Then spring 110, attached to arms 13S and 131), draws roller 1&2 back to the position shown in full lines in Fig. 11, the paper meanwhile slipping through the rollers 141 and 112 and being laid upon table 1423. Drum 27 then continuing to wind up, the tape draws the slide rearward, the forward edge of the paper being meanwhile held, as shownin Fig. 10, and a length of it being drawn 01f ahead of the knife. This time in traveling backward the slide moves a little farther than it did before, because at the completion of the last layer the front of the carriage was lifted and the relation of the incline of plate 132 to the carriage was changed. This additional traverse of the slide leaves a longer length of paper in front of the knife than before to compensate for the increased diameter of the coil. As soon as the pawl 129 stops the slide at its rearward position the knife is carried upward by the rotation of shaft 152, as before explained, and severs the paper. The layer is linished shortly after the cutting of the paper, and one of the nuts 78 79 is again struck, and the same series of operations takes place, beginning with the reversal of drum 27, as before explained. At the instant of the reversal the forward edge of the severed sheet of paper is ejected and thrust under the leads of the wires, where it is instantly caught and wrapped around the layer. It will therefore be seen that the carriage travels forward and rearward during the formation of each layer of the winding. As the front end of the carriage is lifted to keep the tangent-point of the winding opposite the edge of the table 125 as the coils build up the said tangent-point is necessarily moved farward and more nearly approaches the roller 162, resting upon the winding. In order to maintain a constant distance between this roller and the tangent-point, which for the best work should be slightly forward of the tangent-point, the upward movement of the carriage causes the roller to be thrown forward by reason of the link 184 and the lever 181.

If during the winding operation the operator observes a broken strand, he reverses the hand-wheel 15 to the center position, which stops the machine. Then in order to unwind those portions of the unbroken threads which were wound upon the spindle after the break in the single thread occurred and before the machine was stopped the operator turns wheel 15 to the right to the first position. At this point cam 51 disconnects clutch 17 and locks clutch -19 to the bearing 50, thus preventing the rotation of shaft 18 and practically looking the slide or the drum 27. Then by continuing the rotation of wheel 15 in the same direction to the second position cam 12 throws in clutch 7 and applies power through shafts 101 and 103 to the spindles 104, tending to drive them in the reverse direction to rewind the wires upon them. The spindles take up the slack in the wires and then for the moment slip, because the winding-spindle is stationary.- Handwvheel- 15, however, is rotated to the third position, at which point cam 13 throws in clutch 8, thus reversing shaft 31 through gears 99 and 100 and reversing the direction of the winding-spindle 36. The winding-spindle then pays off the wires and the spindles 104 take them up. When this has continued until the perfect strands have unwound to the point where the break occurred in the defective Winding, the machine is again stopped by quickly reversing hand-wheel 15 to the central position. The broken wire is then spliced and the forward winding again started in the manner before described. In this splicing operation a few turns may be given to the winding-spindle 36 by means of the hand-wheel 186, and the layer traveling rod 115 may also be mozved slightly by means of the hand-wheel 18 I/Vhen the machine is idle, the hand-wheel 15 is at the zero position, its handle being at the top, in which condition the cam 51 .is holding clutch 49 in engagement with pinion 47 and shaft 48 is connected with shaft 41. This cam is so constructed that it will continue to hold the clutch in this position during the rotation of wheel 15 to the left and until it is turned from its second to its third position in that direction or, in other words, during about ahalf-rotation of the wheel,

the movement of the wheel each time being one-sixth of a turn. Hence it is possible during the regular winding operation to disconnect shaft 48 from shaft 41 by making this third movement to the left. This stops the movement of the slide and throws the paper-ejector 170 out of operation, but leaves in operation the winding-spindle and the layer traversing and reversing mechanism. From this it will be seen that the operator can at will insert a sheet or wrapping of paper wherever he pleases throughout the coil and permit the layers of winding to be directly superposed upon one another to any extent. For instance, when a layer of wire is forming the wheel 15 is turned to the third position to the left, whereupon at the completion of the layer the leads are reversed to start the new layer, but the paper is not fed in and the new layer is wound directly over the last. Any number of layers can thus be wound until it is desired to insert a sheet ofpaper to furnish a new foundation for the winding, when the wheel is returned to the second position and the normal operation takes place. This feature of the operation of the machine is of considerable importance, since it is not always necessary to lnsert paper after each layer when using previously-insulated wire, and by omitting some of the paper the finished coil is smaller and less costly.

Having described my invention, I claim 1. In a winding-machine, the combination of a wind ing-spindle, a reciprocating guide for laying the material in layers, a continuouslyrotating shaft, an intermittently rotating shaft, a clutch for connecting the two shafts together, connections whereby the reciprocating guide will actuate said clutch at each end of its traverse and means whereby the movements of the intermittently-rotating shaft will reverse the movement of the guide.

2. In a winding-machine the combination of a layer-forming guide, a reversible shaft carrying a nut, said guide connected with the nut to be moved thereby, a normally station ary shaft, a normally rotating shaft, a clutch between the two shafts, means for reversing said reversible shaft actuated by said normally stationary shaft and a clutch-throwing device actuated by said nut, substantially as described.

3. In a winding-machine, the combination of a source of power, a winding-spindle, means for leading strand material to the spindle, means for leading sheet material to thespindle, a control-shaft and two clutch mechanisms successively actuated thereby and respectively controlling the application of power to the means for leading the sheet materialand the means for leading the strand material, substantially as described.

4. In a winding-machine, the combination ofa source of power, a winding-spindle, one or more unwinding-spindles, means for feeding sheet material to the winding-spindle, a control-shaft and clutch mechanism whereby the winding and unwinding spindles can be connected at will to the source of power and the means for feeding the sheet material disconnected therefrom.

5. In a winding-machine, the combination of a source of power, a winding-spindle, one or more unwinding-spindles, means for feeding sheet material to the winding-spindle, a control-shaft and clutch mechanism whereby the windingrspindle can be driven in either direction, the unwinding spindle or spindles driven and the means for feeding the sheet material connected with or disconnected from, the source of power at will by manipulating said control-shaft.

6. In a winding-machine, the combination of a winding-spindle, means for feeding sheet Y

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