US1255712A

US1255712A - Armature-winding machine.

Info

Publication number: US1255712A
Application number: US84265014A
Authority: US
Inventors: Newton Crane
Original assignee: Individual
Current assignee: Individual
Priority date: 1914-06-03
Filing date: 1914-06-03
Publication date: 1918-02-05
Anticipated expiration: 1935-02-05

Description

N. CRANE.

ARNIATURE WINDING MACHINE.

APPLICATION FILED JUNE 3, I914. Patented 5a 3 SHEETS-SHEET I.

N. CRANE.

ARMATURE WINDING MACHINE.

' APPLICATION FILED JUNE 3.19m. 1,955,?1

Patented Feb. 5, 1918';

3 SHEETS-SHEEI' 2.

nnwron 03mm, or iaos'ron; mnssacnosnrrs- Specification of Letters Patent.

ARMA' IURE-WINDING- MACHINE.

Patented Feb. 5, 191%.

Application filed June 3, 1914.. Serial No. 842,650.

. To all whom it may concern:

Be it known that I, NEWTON CRANE, a

. citizen of the United States, and resident of Boston, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvements in Armature- VVinding Machines, of which the following is a specification.

The present invention relates to a machine for winding material in the nature of wire, or similar filaments-or strands, in the form of coils. The particular machine illustrated and described inv this application has been designed forthe purpose of winding wire on an armature core to form coils thereon of the character and in the location illustrated in my pending application for armature, Serial Number 793,590, October 6, 1913; and to that end this particular machine is pro vided with means for holding an armature core of the sort shown in that application in position to have coils built up thereon, and with means for laying wire in the grooves of such core in such a manner as to form coils embracing peripheral portions of the core between alternate grooves. I desire to make it understood that in thus illustrating a particular embodiment of myinvention designed for the particular purpose indicated, I have not intended to limit the broader aspects ofthe invention to a machine adapted for that particular purpose only. The machine involves principles of general application which may be variously adapted and modified for winding filaments or strands,not only of wire, but also of other materials in coils of various forms suited for various purposes, and therefore it is my intention to cover in some of the broader claims hereto appended, these principles in any modifications of construction and design 111 which they may be embodied,-

as well as to cover the specific adaptation of such principles here illustrated for the particular purpose above indicated.

The nature of the principles above referred to and the manner in which they are embodied in concrete means are explained in the following detailed description of the particular machine here illustrated, to which reference is now directed.

In the drawings which this application,

Figure 1 is a front elevation. of a particular embodiment of my invention designed for the purpose of winding wire coils upon form a part of body 1 1 preferably an armature core of'the character shown in my patent application hereinbefore re ferred to. i

Fig. 2 is a side elevation of the machine.

Fig. 3 is a plan view of the upper part of the machine.

Fig. 4 is a vertical central section of the winding mechanism which forms the central idea of the machine.

Fig. 5 is a horizontal sectional view on line 5-5 of Fig. 4.

Fig. 6 is a vertical sectional view of a detail of the control or counting mechanism of the machine.

Fig. 7 is a fragmentary elevation showing a detail of the winding mechanism.

Fig. 8 is an elevation of the wire leader which forms an element of the winding mechanism.

machine here illustrated is adapted to wind wire is an armature core, which is illustrated in Figs. 1 and 2. The core is a cylindrical built up of thin soft iron disks firmly clamped together by bolts 1 5 and having alined notches in their peripheries. These notches form in the assembled core longitudinal grooves which are sub stantially parallel to the axis of the core. The grooves are of two sorts or characters, of which those designated 16, 16 are relatively near the outer surface of the core and are all at approximately the same distance from the axis thereof, and the grooves 17 17 extend to a greater distance from the periphery of the core and are located intermediate the grooves 16. Thus every other groom is a relatively shallow groove 16 while the intermediate grooves. are deep grooves 17. Each of these grooves opens at the periphery of the core and is enlarged at or near its inner limit to a width greater than that of the mouth, whereby to provide space for coils of the necessary number of turns, and to form shoulders preventing the coils from slipping out of place under centrifugal force and other stresses to which they are subjected when the armature is in use. Conveniently the enlarged portions of the grooves or slots are circular in outline, but they may have any other shape.

The means for holding the armature in the required position, which for convenience of description I may call the Work support, is a frame 18 having side members, separated far enough to receive the armature between them, and a transverse front end member. The side members are pivoted at their rear ends upon studs 19 carried by brackets or straps 20, Which are suitably fastened to the base 10. Each of the side members is provided with a notch 21 adapted to receive the trunnions 22 of the armature. The work holding frame may be lowered to 'permit insertion, removal and adjustment of the armature, and raised to hold the armature in working position. VVhen-raised the work holding frame occupies the position shown by the full lines in Fig. 2, in which it holds the periphery of the core firmly clamped against a block 23,

.which is connected to the winding mecha nism as hereinafter described and with a plate or fin 24, which projects' from the block 23, entering one of the perlpheral grooves of the armature. The work hold- -above and below the bracket 32, whereby it may be adjusted as to height and locked in any adjusted position. This adjustment provides for the necessary pressure of the.

armature against the abutment or block 23 when the toggle is extended. By swinging the'handle 28 forwardly and upwardly, the

toggle may be broken and the work holding frame lowered to the position shown by dotted lines in Fig. 2, wherein the armature is disengaged from the abutment block 23 and the plate or fin 28, permitting it either to be rotated upon its trunnions resting in the notches 21, or to be removed.

The wire 35 to be wound upon the. armature 1s provided upon a spool 36 and runs fromthe spool through a tubular leader 37 which has a delivery portion 38 of sufliciently narrow dimensionsto pass freely through any one of the slots or grooves 16,

17 The delivery portion is curved as shown in Fig. 8, with a reverse bend, which brings its extreme end into approximate line with the path, and extending oppositely to the direction, in which the leader travels. At the end of the leader into which the wire passes there is mounted a thimble 39 with smoothly rounded edges of sufiiciently large radius to change the direction of the wire as it passes from the spool into the leader without bending the wire too sharply'or injuring the insulation. The purpose of the leader is to conduct the wire into the grooves of the armature core and lay it insuch grooves smoothly in the form of coils, and the leader is therefore so designed as to accomplish this purpose, the bends of the delivery end 38 being of such large radius as to permit the wire to pass freely through it without objectionable frictional resistance and permitting the wire to leave it without being bent to any appreciable degree at the delivery end.- Neither is the wire twisted, for the .leader travels with a planetary motion around the axis of the spool and draws off the wire laterally from the'spool while wrapping it around the tongue or member of the armature. This is an important advantage, since twisting the wire would have the effect of altering its resistance. It is within the contemplation of my invention to modify the particular construction and design of the leader to adapt it to other particular purposes, and all such modifications are within the scope of this invention, provided they embody the essential'characteristics above mentioned of guiding and lay-' ing the wire with the least liability of injuring the wire.

The leader 37 is mounted upon a carrier 40 which travels on a guide formed by

plates

41 and 42, the plates being held at a determined distance apart and having grooves or

guideways

43, 44 respectivelyon their 1 relatively adjacent surfaces, in which'are received guiding studs 45, 46, respectively which project from the carrier 40 (see Fig. 4). The plates are mounted upon a rod 47 and are held at the proper distance apart by a block 48. The rod 47 passes through the plates and the spacing block, and its upper end is tightly held in a bushing 49 110 which is detachably secured in the top cross bar 13 of the frame by a set screw 50.

The mechanism for driving the carrier comprises the following: Saidicarrieris attached toa sprocket chain 51, having flanges 115 52. 52 which take the place of one of the links of such chain. -The chain passes about '

sprocket wheels

53, 54 mounted upon

shafts

55, 56 respectively which are journaled .in the

plates

41 and 42.' Secured to the shaft 56 is a gear wheel 57 in mesh with a wheel 58 which is secured upon a sleeve or tubular shaft 59, the lattersurrounding and rotating on the'rod 47. A second sleeve 60 carrying a pinion 61 is mounted rotatably on the rod 47 and abuts against the sleeve 59. and one of the sleeves has one or more clutching proections 62 entering a corresponding notch or notches in the other sleeve, making positive connection between the two sleeves. A

' ture, causing an empty one, by loosening gear wheel 63,- which meshes with the pinion 61, is secured to a shaft 64 which is journaled in the crossbar 13 and to the upper end of which above the crossbar'is pinned the hub 65 of a crank 66 having a handle or crank pin 67, asshown in Fig. 1. It will now be evident that rotation of the crank causes the wire leader 37 to travel in an orbit of which the dimensions and outline are determined by the guidewaysin the plates' il and 42. In this machine the orbit includes two of the grooves in the armature, namely either two adjacent shallower grooves 16 or two adjacent deeper grooves 17, and a path leading from one of such grooves to the other outside of the ends of the armature. I wish it to be understood that I do not limit my invention to any particular guide means for the wire leader constructed to limit the orbit of the leader'to that just described, since modifications of the guide means determining orbits of other outlines and dimensions are within the contemplation and scope of this invention.

The wire holding spool 36 is placed upon the rod 47 outside of the

transmission sleeves

59, 60, and is so placed that the direction in which it is turned by drawing off the wire is the opposite to that in which the

sleeves

59, 60 turn. Thereby such friction as is exerted between the transmission sleeve and the spool results in maintaining a certain tension in the wire, and particularly prevents the wire being unwound from the spool faster than it is needed to form the coils, and thereby obviates any danger of the wire falling from the spool and becoming snarled. The rotating efi'ect thus produced by the transmission sleeve on the spool may also have the efiect of taking up, if necessary, any slack in the wire passing from one groove to the other at the ends of the armathe end portions of the coils to lie close against the ends of the armature. Additional means, which may not be necessary in all instances, for maintaining tension of the wire, is provided bv a spring piece 68' mounted on the crossbar 13 of the frame and pressing yieldingly against one of the heads of the spool. Rod 47 may be removed for the purpose of substituting a full spool for set screw 50 and withdrawing the rod from crossbar 13.

The wire leader 37 is adjustable endwise in the carrier 40 for the purpose of laying the adjacent turns of the wire coil beside one another in an orderly manner, and it is also adjustable to a limited extent angularly about an axis transverse to its length. To admit of these adjustments the leader is slidingly mounted in a block or holder 69, which is movable relatively to the carrier 40 and is provided with adjusting screws 7 O, 7 O, which pass through lugs in the holder and bear against shoulders of the carrier as shown in the tooth spaces of the wheel 75.

holder 69, and meshes with a rack 7 4 extend ing longitudinally of the leader. Shaft 72 is the axis about which the holder block 69 is adjusted by the screws 70 and 7 1, whereby a limited change in the inclination of the leader to the vertical is made possible.

An important feature of the present machine is an automatic means for alternately raising and lowering the leader progressively by accurately determined amounts to lay the turns of the wire in building the coils so as to occupy most effectively all the available space in the armature grooves. This automatic means which I may term the control means for the leader includes a toothed wheel 75 secured to the shaft 72, a driving cam 76 for the wheel and a control cam 77. The driving cam is a rib or fin of sufficiently narrow width to enter any oiIie of t is mounted on a block 78 which is pivoted by means of a stud 79 to the side member 11 of the frame at substantially the level of the path in which the axis of the wheel 75 travcls. The cam rib 76' extends from the axis of the stud 79 beside the path of the outer side of wheel 75 for a sutlicient distance to accomplish the purpose and function hereinafter described. It is of such length and the oscillating movement of the block 78 about the axis of stud 7 9 is of such extent that. the remote end of the cam from the pivot axis may be placed above or below its opposite end by an amount at least as great as the pitch spacing of the wheel 7 5. Thus if the block 78 is so placed thatthe cam 76 inclines upward from the pivot 79, the wheel 7 5 in traveling past the cam is rotated clockwise (with respect to Fig. 1) through at least one tooth space and the leader is proportionately lowered, while if the block is lowered so as to depress the cam rib, the wheel 7 5 is rotated a like amount in the opposite direction, proportionately raising the leader. The cam rib is thus inclined upwardly and downwardly by

electromagnets

79, 80 between which is an armature 81 connected to the block 78. A s ring 82 balances the weight of the block 8 and tends to hold it The controlcam 77 causes the block 78 and cam rib 76 to be raised or lowered at in the neutral position shown in Fig. 2.

the required times by controlling the How of is connected by a conductor 89 with the winding of magnet 80. Both magnets are connected by a conductor 90 with a battery or other source of electrical energy 91, and the same battery is connected by a conductor 92 with the contact points 84 and 85 of the switch lever 83. The switch lever is pivoted at the point 93 on a post 94, and is provided with a portion 95 which bears on the control cam 77. This cam is a spiral rib, as shown best in F ig, 3, formed with alternate rises and depressions of varying lengths. A latch 96 is pivoted on the switch lever and is arranged relatively to the part 95 of the latter so as to lie on the inner side of that turn of the cam rib with which the toe or part 95 is in contact and swing the lever as the point at which it engages the spiral cam rib approaches the center 98 of the cam. It should be understood that the post 94 is adapted to turn to permit the described movement of the switch lever toward and 'from the axis of the cam. The

plates

86 and 87 are also of sufliciently wide extent, as appears from Fig. 3, to permit the corresponding necessary movement of the switch 99 which is mounted on the lever 83. The cam.77 is mounted on a toothed wheel 100 with which coacts a single tooth 101 on the crank 66. Each rotation of the crank thereby turns the cam through the space from one of the adjacent teeth 100 to the next. It will now be understood that whenever a rise or high part of-the cam rib comes under the toe 95 of lever 83, the switch 99 is depressed and contact point 85 is brought into contact with plate 87. Then the course of current from the source 91 is through the switch 99 to contact point 85, plate 87, conductor 89 to the lower magnet 80, and thence back tothe source. The cam rib 76 is then depressed by the attraction of the magnet 80 for the armature 81, and the adjusting wheel 75 is adjusted anticlockwise through the determined angle each time it passes the cam 76. Thus the wire leader is progressively raised upon each revolution in its orbit and the successive turns are laid beside and above one another as long as the position of the switch 99 remains unchanged. This condition may obtain during several turns of the crank and several revolutions of the leader. When a low point of the cam passes under the toe 95, the toe is depressed and the switch is raised by a spring 102 which presses upwardly on the switch-carrying arm of the lever and reacts upon an abutment 103 on post 94. Then the contact point 84 contacts with the plate 86 and the magnet 79 is made active, with the effect of raising the armature and the cam 76 and causing the wheel 75 to be rotated clockwise and the leader to be progressively lowered during the succeeding revolutions of the leader carrier.

' and shape to the turns of the crank, being The angular extent of each rise and depression of the cam rib determines the number of revolutions during which the leader is either raised or depressed, and these elements of the cam may be made of any desired lengths so as to. secure the desired result of laying the wire smoothly and causing it to occupy the space provided for its reception to the best advantage. The exact character of control movements given to the leader and the design of the control can depend upon the size of the Wire, and size of the coil receiving spaces in the armature.

The wheel 75 may be exchanged for other wheels of greater or smaller pitch, but of the same diameter, and the

magnets

79 and 80 may be adjusted so as correspondingly to reduce or increase the throw of the cam 7 G. Clamping screws 10l which pass through slots in the magnet holding brackets 105, and thence into the frame, permit the necessary adjustment of the magnets for the purpose indicated. Substitution of a toothed wheel 75 having the desired pitch, adjustment of the magnets, and the substitutlon of a cam 77 designed enable coils to be made of any size of wire for the special work i and laid in the manner indicated in slots by which the spiral control cam is carried has numbers arranged in consecutive order beside its several teeth. These numbers in connection with the tooth 101 and the turns of the spiral cam 77 furnish a counting means which indicates at any moment the number of turns of wire in the coil being wound. The turn of the cam with which the lever is engaged shows the number of complete rotations which the cam has made, and the numerals beside the teeth of the wheel show the number of turns which the crank has. made in a fractional part of the rotation of the cam. The revolutions of the Wire leader are proportional preferably turn for turn, although of course the proportion may be any other amount desired, wherefore it is evident that the number of turns in the coil is determined by direct reading and simple calculation. The adjusting wheel 75 for the .wire leader also has numbers or other identification marks for determining the level at which the leader shall be set when commencing to wind a coil. In winding coils of the character indicated here, the starting point of the coil is an important feature and must be the same in connection with each coil of one series. The numbers on the wheel 75 enable the seating of the leader in this respect to 99 is shown in 108 and pressed upon 84; and 85 are here seen to be

pins having heads

106, 107 contained slidingly in a sleeve by a spring 109 which is contained in the sleeve and confined between the said heads. The sleeve is embedded in 'the body of the switch- 99 which is preferably of non-conducting material. A bar 110 of conducting material. passes longitudinally through the switch into connection with the sleeve and beyond the switch to permit connection with the conductor 92. This'bar may be made as a screw threaded into the switch and bearing against the sleeve 108, serving as a clamp to hold said sleeve and adapt it to be released so.as to permit adjustment of the sleeve endwise, in order to bring the contact points in proper relation with the complemental plates when the switch carrying lever is properly engaged with the cam.

It. is to be noted that the adjusting wheel and the control cam 77 are retained frictionally in their adjustments, the one being so retained by a spring 111 confined between it and the body of the carrier, and the other by a spring 112 similarly confined between the wheel 100 and the bar 13 of the frame.

In connection with the winding machine I have devised a means for detectin the presence of a short circuit or a break in the insulation of the wire, and also to indicate when the wire is broken. This means cansists of a VVheatstone bridge 113 .of which the side in parallel with the variable resistance 114 is composed of the conductors 115 and '116, the former being in connection with a binding post 117 to which also the wire to be wound is connected, and the second being grounded on the frame by a binding post 118. The wire on the spool is also grounded on the frame, through its inner end passing from the spool and being attached to a metallic arm 119 which is in such contact with the sleeve 59 and rod 47 as to be in circuit with the frame. Thus 7 the wire on the spool and that being wound rent could flow through it and the gal-- the opposite. direction is in the circuit of the Wheatstone bridge in parallel, and at the same side of the galvanometer 120, with the variable resistance 114. If the insulation of the bedefective so as'to make a or a leakage, the would move in one direction and show at once the presence and character of the trouble; while if the wire should break, no curwire should short circuit vanometer pointer would then be moved in to show that trouble also. The bridge may be connected with the same battery or source of current which feeds the magnets, or with another source of currentat will.

' When it-becomes necessary to substitute a full spool for an empty one, or to change galvanometer pointer the size or character of wire employed, the change may be readily made by first removing the rod '17. This is accomplished by loosening the set screw 50. The sleeve with the pinion 61, and the spool may he slipped easily off the shaft 47 and. another spool may be substituted.

It will be readily understood from an inspection of the drawings and the foregoing description that an armature -core may be held in place with one of the slots engaging the fin 24 and the two slots at each side thereof exposed on each side of the abutment block 23. The guide for the particular wire leader herein illustrated is of such dimensions that the orbit traversed by the delivery end of the leader is as wide as the ture of the sort shown in the drawings, the

armature is secured in the position indicated in Fig. 2, the wire is drawn from the spool and threaded through the leader, and its end made fast at the binding post 117. The crank is thenrotated and the leader is thereby moved back and forth, traveling in one direction through one of the slots 16 and in the reverse direction through the other slot, wrapping the turns of wire about the tongue formed in the armature core between the slots. In the course of its travel In this manner the leader is adjusted up and down by the control'mechanisms previously described. After a sufficient number of turns has been-wrapped around one of the tongues formed between two slots, the armature 1s shifted until the next adjacent tongue between slots of the same series is brought against the abutment block 23', enough wire is drawn through the leader to form a loop, which is made fast at any convenient location, and the winding operation is repeated. It is to be understood that the winding is commenced in two of the slots of the greater depth, in an armature of the kind here illustrated, and coils are laid in all of thedeeper slots before any wire is placed in the shallower slots. When the winding is completed the coils are all joined to one another by the loops which have been drawn out as above stated after completion of one coil and before commencing the next. These loops provide the terminal wires which are needed for connecting the coils to a commutator and have the further and important use of indicating at once the beginning and ending point of each coil, ,the direction of winding of the coil, and the innermost and outermost turns of the coil. The fact that all the coils are connected enables the combined resistance of the coils and the supply of wire 011 the spool to remain constant throughout the entire winding operation, thus requiring no adjustment of the Wheatstone bridge.

In the foregoing description in using the terms "ertical horizontal up down,

and other words signifying height or level, I have used such words relatively with respect to the particular machine shown in these drawings, in which the winding mechanism is located above the armature, and the orbit of the wire leader is approximately in a horizontal plane. Of course I do not limit my invention to a machine so arranged or positioned, since the mechanisms may be inverted or inclined, or have any other desired relation than that shown. So far asthe principles of that part of the invention relates to the automatic shifting of the leader, all that is necessary is that the 'cam 76 should be inclined to the path in which the adjusting tooth wheel 7 5 travels, and provided this relation is present the orbit of the leader and the adjusting cam 76 may have any other position than that shown which may be de- .sirable for the particular purpose for which the machine is used.

It will be noted that the delivery portion of the leader extends to one side of the plane of the

guides

41 and 42 and that therefore such delivery portion travels in a path clear of the guides, whereby it is able to lay the wire without interference with any part of the carrying, guiding, and traveling mechanism. It is to be noted also that although I have shown and described the leader as bemg movable bodily about the guides and the wire-containing spool, this being desirable for the purpose which this particular machine is desi ned to serve, yet the essential thing is that the delivery portion of the leader is the part which is so movable and is also the part which is adjustable laterally with respect to the orbit or path in which it travels. Accordingly I consider that a winding apparatus in which the delivery portion only has the travel and adjustment referred to is within the contemplation of my invention and is covered by certain of the following claims.

The path or orbit in which the wire leader is constrained to travel by the guides previously described, is irregular in the sense that it is other than a circular path of which all points are equally distant from the axis, and the term irregular, as used in the following claims, has this significance. The herein described apparatus is the first to be produced, so far as I am aware, in which a laying device is caused to travel in a planetary manner about the coil-receiving portion of an armature core, or other holder for a coil, in a path which is other than equidismm at all points from a central axis, or

which is made to conform with the outline of the portion of the armature about which the coil is wound. The orbit in which the wire laying device of my machine travels has straight sides which are parallel, or approximately so, to the slots of the armature core which receive the wire, these straight sides being connected by curves which make a smooth closed circuit. The path or orbit as a whole of the wire leader, is thus similar to the outline of that part of the core whereon the wire is wound. This quality of similarity is essential to enable the wire to be hid in the slots of the core which are otherwise than both in the same plane with the axis of the core. The definition of similar or similarity, as here used, is not intended to limit the orbit or path to one which is exactly similar at all points with the outline of the wire-receiving part of the armature, but is intended to embrace any condition in which the orbit is so nearly similar to such portion of the armature that the effect above indicated may be secured.

As defining the phraseology used in the claims. it may be stated that the wire 35 is typical of any sort of filamentous material which may be wound or laid in the form of a coil; that the leader is typical of any sort of a device for conducting and guiding the material to the location in which it is laid,

whether such device has an internal channel' I do not limit my invention to a machine in which the control for the adjustment actuator is electrical, for it is within my contemplation, and within the scope of the following claims to provide mechanical or other control means for securing the same effect; neither do I limit the invention to a hand operated machine.

l/V hat I claim and desire to secure by Letters Patent is r 1. An armature winding machine comprising means for holding an armature core having peripheral longitudinally extending coil-receiving grooves, a guide having portions extending approximately parallel respectively to two of such grooves with connectmg parts at the ends thereof, a wire leader mounted to travel on said guide and propelling said leader in an endless circuit along said guide.

2. An armature winding machine comprising means for holding an armature core having peripheral longitudinally extending coil-receiving grooves, a guide having portions extending approximately parallel respectively to two of such grooves with connecting parts at the ends thereof, a wire leader mounted to travel on said guide and constructed with a delivery portion extending toward the armature, and so constructed and arranged that it may enter said grooves, and means for propelling said leader in an endless circuit along said guide.

3. An armature winding machine comprising means for holding an armature core having peripheral longitudinally extending coil-receivin grooves, a guide having portions extending approximately parallel respectively to two of such grooves with connecting parts at the ends thereof, a traveler mounted on said guide, means for propelling said traveler in a path defined by the guide, a wire leader mounted on said traveler having a wire guiding portion trans-- verse to the path in which the traveler so travels and a delivery portion extending toward the armature, and means for holding a supply of wire in position to deliver to said wire leader.

4. An armature winding machine adapted to wind wire in the peripheral longitudinally extending coil-receiving grooves of an armature core, comprising means for holding such an armature core, an irregular guide having guiding elements parallel re spectively to two of the grooves of an armature core so held and having connecting portions joining the adjacent ends of the aforesaid portions to form therewith a closed track, a traveler mounted to travel onsaid guide, means for propelling said traveler thereon, and a wire leader connected to the travelerand having a delivery portion at one side of the orbit in which the traveler is constrained to move.

5. An armature winding machine adapted to wind wire in the peripheral longitudinally extending coil-receiving grooves of an 'armature core, comprising means for holding such an armature "core. an irregular gulde having guiding elements parallel respectively to two of the grooves of an armature core so held and having connecting portions joining the adjacent ends of the aforesaid portions to form therewith a closed track, a traveler mounted to travel on said guide, means comprising a flexible endless chain following the outline of the guide and connected to the traveler for propelling sa1d traveler thereon, and a wire leader connected to the traveler and having a delivery portion at one side of the orbit in which the traveler is constrained to move.

6. A winding machine comprising a leader for the filament to be wound, having a delivery portion, propelling means and a stationary guide on. which said leader is mounted arranged for causing said leader to travel in a closed orbit, and means for shifting the delivery portion of said leader progressively in a direction transverse to such orbit, whereby tov lay successive turns of the winding beside one another, said delivery portion being clear of the guide.

7. An armature winding machine comprising a leader for the filament to be wound, having a delivery portion,-means for causing said leader to travel in a closed orbit conforming approximately to the outline of that part of an armature core about which a coil is wound, and automatic mechanism for transversely displacing such orbit step by step upon successive traverses of said leader, whereby to lay successive turns of the winding beside one another.

8.. A machine for winding wire in coil formation on an armature core, comprising a holder for a supply of the material, a leader having means for guiding the wire taken from the holder, said leader having a delivery portion constructed to enter the coil-receiving grooves of an armature coil and means for causing said delivery portion to travel in a substantially closed path conforming approximately to the outline of that portion of the armature core on which the coil is wound.

9. A machine for winding armatures comprising a holder for a supply of wire, means for supporting an armature core, a wire leader having guiding means adapted to take. wire delivered from said supply, a guide for constraining the movement of said wire leader and arranged to cause such movement to take the t'orinof a path surrounding that portion of the armature core around which the wire is wound, and means for progressivelv shifting said Wire leader transversely to the path in which it travels.

10. A machine for winding filamentous material in coil formation comprising a. guide, an endless flexible conveyer mounted I upon said guide. means for driving sa1d conveyer, a carrier connected with said conveyer and movable in an orbit, and a leader mounted on said carrier and having a channel for guiding the filamentous material, said leader terminating in a delivery portion which extends clear of the guiding means.

11. In a winding machine of the character described, a traveling carrier, means for causing said carrier to travel in a definite orbit, a leader for the material acted upon by said carrier and having a delivery portion, mechanism on the carrier for shifting said delivery portion transversely of the orbit ill which it, travels, and a relatively stationary actuator adjacent to the path in which said shitting means travels arranged to engage said shitting means upon each circuit thereof and to cause displacement of said delivery portion upon each such engagement.

112. In a winding machine, a leader having means for guiding the material acted upon and terminating in a delivery portion, a carrier for said leader, means for so moving said carrier as to cause the delivery portion thereof to travel in a determined orbit, holding means for supporting the work piece on which said material is wound inside of the orbit of said delivery portion, and an actuator located adjacent to said orbit in position to eil'ect displacen'lent laterally of said delivery portion through a given distance in one direction at. each traverse of the leader past said actuator. whereby to cause successive turns of the winding to he laid beside one another.

13. A winding machine comprising a carrier, means for causing said carrier to travel revolubly in a closed path, a leader for the material to be wound having a delivery portion, mounted upon said carrier in a manner permitting its delivery portion to be shifted relatively to the carrier transv rsely to the orbit in which the carrier travels, and means for so shifting step by step the said delivery portion. 14. A wire winding machine comprising a carrier, means for causing said carrier to travel in a closed circuit or orbit, a wire leader mounted upon said carrier and having a delivery portion which is adjustable transversely of said orbit, an adjusting device carried upon said 'carrier and connected with said delivery portion for soshifting the latter, and an actuator mounted beside the path of said adjusting device in position to engage the latter during its travel and constructed to impart successive movements in the same direction to the adjusting device on successive traverses thereof past said actuator.

15, A winding machine comprising a carrier, a leader for the material acted upon mounted upon said carrier, a guide for the carrier constructed to limit the movement of said carrier to a definite closed path, driv ing mechanism for causing said carrier to travel in such path, adjusting means mounted on the carrier for displacing said leader laterally with respect to such path, an actuator located so as to be engaged by said adjusting device in the course of the latters travel'and constructed to operate said device, and control means for automatically making said actuator operative to cause adj ustment of the leader first in one direction and then in the opposite direction.

16. In a winding machine the combination of a carrier and means for moving the same in a closed path or orbit, a leader mounted upon said carrier and adjustable thereon transversely of such path, a rotary adjusting device mounted on the carrier and engaged with said leader adapted to be turned in either direction for shifting the leader in either direction with respect to the path in which it travels, an actuator arranged to engage said adjusting device in the course of its travel and adapted to be put in different positions, in one of which it turns said adjusting device in one direction, and in the other of which it turns the adjusting device in the opposite direction, and an automatic control for shifting said actuator from one position to the other.

17. In a winding machine the combination of a revolubly mounted and movable carrier, a leader supported on. said carrier and movable thereon transversely of the orbit in which the carrier travels, a toothed adjusting wheel mounted upon the carrier and having actuating engagement with the leader, and an actuator mounted beside the path in which said wheel travels and having a portion arranged to engage the teeth of said wheel, and to turn the latter during its travel.

18. In a winding machine the combination of a i'evolubly mounted and movable carrier, a leader supported on said carrier and movable thereon transversely of the orbit in which. the carrier travels, a toothed adjusting wheel mounted upon the carrier and having actuating engagement with the .leader, an actuator mounted adjacent to the path in which the wheel travels andprovided with a rib arranged to enter the space between two teeth of the wheel, said rib being so inclined to the path of travel of the teeth with which it engages, as to cause a relative angular movement of the wheel.

19. A winding machine including a carrier, a leader carried by said carrier, means for moving the carrier in a definite path, an actuator located adjacent to said path and arranged to shift said leader in a direction transverse to said path, said actuator being adjustably mounted and having a longitudinal member adapted to be placed by adjustments at different inclinations, and a control mechanism for altering the inclination of said member, whereby to reverse the direction in'which the leader is adjusted.

- 20. In a winding mechanism the combination of a traveling carrier, a guide for said carrier, a driving crank geared to said carrier for causing the latter to travel along said guide, a leader carried by said carrier for guiding the filament being Wound, an actumeagre ating cam arranged to shift said leader and adjustable so as to reverse the direction inwhich it shifts the leader, a control cam operated by said driving crank, and means operated bysaid control cam for shifting the position of said operating cam.

21. In a machine of the character. described, meansfor supporting an armature core, a carrier for conducting the filament.

being wound, a guide having an endless guldeway in which said carrier travels and by wh1ch the same is caused to travel about that part of the armature core on which the filament is wound, an endless conveyer su ported by saldguide and connected to sald carrier, an operating crank, and caring driven by said crank and engaged with said the wire to prevent conveyer for driving the latter. 7

v 22. In a machine of the character described, a traveling wire leader, a shaft located in a. line perpendicular'to the path of sa1d leader and geared to said leader for actuatin the same, a spool mounted upon and means for rotating said shaft drawing 03 the wire, acts are take-up for the same from falling slack from the spool.

'23. Ina machine of the character described, a traveling wire leader, a shaft arwhereby said sha ranged substantially perpendicular to the scribed in combination with wire leader, 7

1 path of said leader and geared to said leader for actuating the same, a spool mounted upon said shaft and means for rotating said the wire leader travels, and also to the dimotion in which the spool is turned b drawing 0d the wire, whereby said shaf t acts as a take-up for the wire to prevent the same from falling slack from the spool.

24. In a machine of the character dea traveling an actuator for shifting the position of said leader with respect to its path f travel, a rotary control cam for governvWheel having mg said actuator, an operating handle geared 'to said traveling leader for driving the latter, a toothed wheel connected with said control cam, projections connected with said crank arranged to co-act with said.

wheel and thereby drive the latter, said numerals adjacent to itsteeth,

and the control cam 'belngspiral with a luralit of convolutions, whereby a means is aifor ed for indicating the number of rotations of the crank. y Y 25. An armature. winding machine comprising a support for a spool of wire, a traveling wire leader, means for causing said leader to travel about said support, the from the spool being carried through the leader and made fast, and] a eatstone its nces constiguidin tuted by the wire on the spool and in the coil being formed;

26. In combination with a holder for a supply of wire, a leader having a guiding portion for wire led from said supply, means for actuating said leader to draw the wire from the supply and lay it in a coil, and a Wheatstone bridge, the. opposite ends of the wire constituting the supply and including that'being wound, being connected in the circuit of the bridge.

27. In a .ma chine of the character described, a combined spiral cam and counter, comprising a spirally curved rib, a toothed wheel on which said rib is mounted and having. numerals adjacent to its teeth, a driver for said wheel having a projection arranged to engage theteeth of the wheel upon successive revolutions, and a follower engaged with said cam.

28. An armature winding device comprising a work support adapted to hold an armature core, an abutment against which the periphery of said core is held by said support, a guide arranged adjacent to said abutment, a carrier mounted upon said guide and movable thereon, and a wire leader mounted upon said carrier and projecting therefrom toward the armature, said leader and said guide being so formed that movement of the carrier on the guide causes the leader to travel with an orbital movement about a portion of the core.

In an armature winding machine, a

holder adapted to support an armature core,

a guide mounted ad acent to said core, a

wire leader -supported movably upon said leader as to carry its delivery portion in a' circuit including two of the slots of the core. "31. An armature winding machine comprising means for supporting an armature having a series of-longitudinal slots, a wire leader, guiding means having an outline smular to the wire coil occupymg two of such slots'and crossing the ends of the armature from one slot tothe other, and means for causing said leader to travel along such means. Y 32. winding machine comprising a work holder for. holding the work piece on which a filament is to be wound, a leader for the filament being wound mounted to travel in a closed path surrounding said work piece,

means for propelling said leader in such path, and mechanism for producing step by step relative displacement between the work piece and leader in a direction transverse to said path, whereby to cause successive turns of the filament to be placed beside one another. V

33. A windin machine comprising a work 4 holder for holding the work piece on which a filament is to be wound, a leader for the filament being wound mounted to travel in a closed path surrounding said work piece,

NEWTON CRANE.-

Witnesses:

ARTHUR H. BROWN, P. PEZZETTI.