US2400323A

US2400323A - Wire stranding machine

Info

Publication number: US2400323A
Application number: US517859A
Authority: US
Inventors: Albert E Winslow
Original assignee: Farrel Birmingham Co Inc
Current assignee: Farrel Birmingham Co Inc
Priority date: 1944-01-11
Filing date: 1944-01-11
Publication date: 1946-05-14
Anticipated expiration: 1963-05-14

Description

A. E. WINSLOW WIRE STRANDING MACHINE May 14, 1946.

Filed Jan. 11, 1944 12 Sheets-Sheet l INVENTOR ATTORNEYS May' 14, 1946. A. E. w|Ns| ow` l WIRE STRANDING MACHINE 12 Sheets-Sheet 2 Filed Jan. 11, 1944 i INVENToR /ex-'. whs/ow May 14, 1946. A. E. wlNsLow 2,400,323

n WIRE STRANDING MACHINE Filed Jan. 11, .1944 12 sheets-'sheet s -A'ITORN EYS May 14, 1946. A. E. w|Ns| ow 2,400,323`

' I WIRE STRANDING MA'GHINI@` y Filed Jan.` l1. 1.944 12 Sheets-Sheet 5 May 14, 194 6- I A. E wlNnsLow 2,400,323

WIRE STRANDING MACHINE Filed Jam 11,-1944 12 sheets-sheet e eff ATTORNEYS INVENTOR S/aw ATTORNEYS A. E. wlNsL'ow WIRE STRANDING MACHINE Filed Jan. 11, 1944 12 Sheets-Sheet 7 May 14,A 1946.

May 14, 194.6. A. E. wlNsLow WIRE STRANDING MACHINE Filed Jn. A11,'1944 12 sneetssheet s I INVENTR wf/: ,Mas/49W BW ma,

l May 1-4, 1946.

A. E. WINSLOW- v WIRE STRANDING MACHINE Filed Jan. 11, 1944 12 snets-sheet 1o Hill-I A I INVENTOR Mar T/zzQ/ow ATTORNEYS May 14, 194.6.

A. E. WINSLOW WIRE STRANDING MACHINE F11ed Jan. 11, 1944 12 sheets-sheet 11 I "wm-yn e 5% M' W BWM, me@

ATTORNEYS vMay 14, 1946. A.. E. w|N-sLw 2,400,323

WIRE S TRANDING MACHINE 12 Sheets-Sheet l2 Filed Jan. 11, 1944 IIIII QM norm 19:26 -130k QD@ n PWS Patented May-1,4,

mesne assignments, to Fmi-Birmingham Company, Incorporated, Ansonia, Conn., a corporation of Connecticut Application January 11, 1944, semi N. 517,859

17 Claims.

rIfhis invention relates to a machine for stranding wire and more particularlyv to light-weight wire or wire of a relatively small diameter.

Heretofore wire stranding has usually been ac` complished in machines capable of handling relatively heavy wire. Such large machines are cumbersome and operate at a slow speed and although designed for handling heavy wire are usually also used for lightwire. Although light wire cable. may' be made upon this type of ma- .lower part of the casing removed for viewing the mechanism; Fist 2 illustrates in elevation the creelf'and rotary disc 4in relation thereto and in section a.

chine I have found that such a cable can be l made much-more eiilcientl'y upon a lighter faster running machine.

One oi the objects of this invention is to provide a lighter weight faster operating machine which will handle relatively light weight strand wires to lay them in cable formation.

Another object of this invention is to provide for the even and uniform laying of the strands of wire into a cable formation that an improved cable may be provided.

part of' the supporting mechanism with Darts omitted;

Fig. 3 is a diagrammatic view partly in section of the creel, and the leading of the various strands v through the spindle, also showing the other parts which operate upon the cable after the same is formed;

Fig. 4 is a sectional view on substantially line 4-lofFig.2;

Fig. 5 isa fragmental view of the lower portion of the creel illustrating the brake for frictioning each of the supply packages; F18. 6 is a sectional view of the spindle illustrating the mounting of the creel and the guide Another object of this invention is to provide stress free cable by so forming the individual wire strands that they do nottend to' fly open or spread apart if the cable is severed.

'Another object oi' this invention is to provide an arrangement whereby abroken end maybe. easily retrieved for re-threading of this end should the end break.

Another object of this invention is to put in two twists for each single revolution of the means for guiding and twisting the wire.

Another object of this invention is to provide a cable which will be straightened and will have any kinks therein taken out as it passes through the machine.

Another object of the inventionis to provide a machine whereby the pulling stress of drawing the wire through the iiexing mechanism may be provided for while permitting relaxing of the tension on the wire cable in the reeling thereof.

Another object of this invention is to provide ured as it is formed. v

A still further object of this invention is to provide an arrangement iolquickly stopping the machine either upon a predetermined length hav-l an arrangement whereby the wireV may be measthrough which the various strands tend to be laid;

Fig. 'l is a section on line 1-7 oi Fig. 6;

Fig. 8 is a section on line 8 8 of Fig. 6;

Fie'. 9 is a sectional view illustrating the drive of the main spindle from a motor and certain other drives related theretov for various mechanism of the machine;

Fig. 10 is a. top plan'view of the false twister mechanism and showing fragmentally the drive therefor;

Fig. 11 is' a sectional view taken 'substantially von line II-Il 'of Fig. 10;`

F18. 12 is a sectional'view taken on substantially line l'2-l2 of Fig. 10;

Fig. 13 is a fragmental view illustrating the arrangement of the cable from the hauler'tc the reeling mechanism and certain of the drive mechanism for the reeling mechanism;

Fig. 14 is a plan view looking down on the traverse which is associated with the reeling mechanism;

Fig. 15 is a. view taken on substantially line |5--Il ofFiE. 14; l

Fig. 1-6 is an elevation of oi wire exthe traverse mechanism shown in Fig. 14;

F1917 is a sectional view taken substantially on line I'l-I'I of Fig. 16;l

Fig. 18 is a fragmental view illustrating the change gear drive relationship of the lower portion of Fig. 9;

Fig. 19 is a plan view of the mechanism shown" in Fig. 18;

Figs. 20 to 24 are sectional details for the conveying of current in connection with the stop motion; .l

Fig. 25 is a diagrammatic view of the counter;

Fig. 26 is a wiring diagram showing the starting ply package does rotate about its own axis as wire Supply packages are is drawnl therefrom.

therefrom. An arcuate brake shoe 54 (see Fig. i is provided as at 56 while a threaded pin 5l is engaged by a spring 58 to draw the brake shoe against the brake drum 52. Adjustment of the spring tension may be provided by disengaging the I spring and threaded pin 5l and relocating the pin mounted on a creel and the wire is drawn from the several packages through a hollow spindle where the wire is laid in helical form and at the same time twisted. I provide that a double twist will be placed in the cable of the several strands of wire by leading the several strands back upon themselves and revolving theradially extending portions oi the cable as it extends outwardly from the hollow center, shaft, or spindle. In order to economize space l lead the .laid cable upwardly i and then downwardly and package the cabie beneath the laying mechanism. Prior to packaging however l twist the cable up still more tightly to set the helical lay already put in while relaning the cable after so twisted as it passes through a false twisting mechanism. The cable may then be caused to travel through a straightener to take out any kinks and is pulled through the various processing mechanisms by a hauling device which permitsv of heavy tension being placed upon the cable to draw it through the various processing parts but a relaxation of the cable on the other side of the hauler so that it may be reeled under a considerably relaxed tension. The reeling mechanism is performed by a surface drive and is traversed while at the same time a counter is provided that the amount o formed cable may be known.

The various parts of the machine as indicated in the above general description each enter into the processing of the wire for the advantageous results performed. vStop mechanism is also provided to quickly stop the machine should one` of the strands break prior to being laid. .The various parts of the machine wiilbe taken up and described in more detail under their various headings.

Supply creel With reference to the drawings the stationary frame of the machine is designated (see Figs. 3 and 6) in which there is mounted a rotating spindle 2S supported by means of the ball bearing 2i. A collar 2e (see Fig. 3) having, a plate 29 secured thereto at the lower side A and a disc Sli secured thereto at the upper side is mounted upon the spindle on .shoulders 3l and 32 to rotate with the spindle. A recess 33 is formed in the collar 2e to receive a pulley 3, journaled upon a shaft 3E', which pulley has its periphery tangent to the hollow bore 3e of the'spindle to provide a lead for the cable out of the spindle. A bushing el (see Fig. 6) is rotatably mounted by means of ball bearings 38 and 159 resting upon shoulders titi and di of the spindle and carries the creel supporting deck d2 which is fixed to the bushing and rest thereon. This is termed the main deck. The ball bearing 38 is held in the bushing by means of a plate dil', hanged as at 43, which ts into e. recess iii in a plate li5 secured by bolt 46 -to the lower end of the bushing 3l. The bushing @l is provided with V belt grooves All and 8 for purposes which will hereinafter appear.

Equally spaced about the axis of the creel I have provided upstanding package spindles 56 (see Figs. 3 and, 5) upon which a spool El having; a brake drum b2 and containing a package of wire 53 is provided. This spool with its brake drum 52 may rotate to permit the wire 53 to be drawn in the brake shoe. The wing nut 5% on the upper end of the package spindle will retain the spool in position. I have illustrated six of these package spindles equally spaced about the creel, which assist in the ,formation of uniform cable by the laying of the various strands thereof. The numy ber of packages may of course be varied.

A guide post is located adjacent each supply package radially between'the supply package spindle and the central axis of the creel. A suitable number of these posts (see Figs. 2 and 3) extend upwardly from the main deck of the creel i2 to support a raised deck bi for the support of a package et of wire. having the same spool and brake mechanism as heretofore mentioned in connection with the spools on the main deck. Out- .wardly of each supply package there is provided a pair 'of drums 66 and 61 (see Fig. 5) with e guide pulley S8. adjacent the drum 66 and a guide pulley A long extent of traverse of the wire between its leaving the supply package and entering the hollow spindle, should a break occur, it will be a very simple matter to locate the broken end and piece the same up without the necessity of shing a lost end of the wire through the hollow spindle where l maneuverability is difficult. Drums as'iust de' scribed are arranged for each of the packages, including the package on the upper deck e2 and guide pulleys which lead therefrom except that pulleys 69 and 69 are substituted for pulley 59 in the delivery of the wire from the drums of the upper deck. The strand designated 'H leads from the'supply package on the upper deck, and serves as the core for the cable, the other strands being laidabout it.

The drums and pulleys just described are mounted upon a bracket 13 (see Fig. 5) which is secured to the deck l2 and which bracket provides upstanding ears 14 with openings 'lo for shafts to rotatably support the drums et and El. while an upstanding ear 'I6 is provided having an opening 11 for the support of guide pulleys 68 and 69. This bracket also forms an anchor as at 18 for one endk 15 of the spring 58.. These brackets are interposed between the supply packau (see sie. e) which consists of a body ci recessed as at B2 to receive guide pulleys ed which are each mounted to rotate on c, shaft @il located in the outwardly extending bosses se (see Fig.

'7) of the body. There is one of these guide pui.

leys o3 for each supply package on the deck e2, there being six in number in the illustration herein which are spaced apart equally angularly about the body ofthe guide 8B. This guide is supported upon the creel 62 by its base 3 and bolts lil (see Fig. 6) passing therethrough while it has a hollow standard 88 having a bore $9, through which the strands are passed. A center guide designated 90 is grooved as at 9| (see Fig.

y housing for the ball bearing 21,

their V pulleys.

36 of the spindle. The helical strands being laid about the center strands at ,this tip 95.

At one point in the periphery of the disc 30 (see Figs. 2 and 3) the slot I00is provided for the mounting of the guide pulley IOI rotatably upon a shaft |02. 'I'he cable |03 extends down 'over the pulley 34, thence out over the pulley |0I and upwardly as at |04 to extend over pulley |05 (see Fig. 1) at the upper center of the machine and thence downwardly at |06 over a fixed pulley |01.

'I'he disc 30 rotates with the spindle 26 as above indicated as vdoes also the plate 29. and I I (see Fig. 3) are rotatably mounted in the plate 29 and disc 30 at points equally distant from the center axis thereof. A bushing II2 is mount ed in thecasing 25 and is provided with V grooves H3 and |I4. 'I'his bushing supports the bearing 21 above mentioned by means of the plate'II5 secured by bolts I6 therethrough which forms a Pulleys ||1 and I8 are at the opposite ends of the shaft ||0 and pulleys ||'9- and |20 are at the opposite ends of shaft I I I. -These pulleys are located so that the V groovesin these pulleys will be opposite the V grooves in the bushings 31 and II2. A belt I 2| engages the v groove |I4 on the bushing ||2 and Shafts I able top or cover |29 is provided over this casing as a part thereof which is removable.

False twister As shown in Figure 3 a bracket .|30 is fixed to the structure 26 and containing a cylindrical por- .tionl |3.| with ball bearings |32 and |33 mounted*v v.at either end thereof to rotatably support the shaft |34 providing a substantial bearing there for. This shaft is hollow or provided with a cen-` tral bore |35 for the passage lof the cable there-v through. On the upper end of this shaft there is mounted a cap |36 having a pulley |31 with a V groove |38 therein, while on the upper end of this cap there are provided supports |33 and |40 for the drums I 4I and |42 about which the cable maybe wound in the form of a, figure eight a sufficient number of times to obtain the desired grip thereon for rotationof the cable, after which the V groove in the pulley ||1 while the belt |22 engages the V groove in the bushing 31 and also the V groove in the pulley II 8. Likewise a belt |23 engages the V groove I|3 in the bushing I2 and the V groove in the pulley I I9 while the V belt |24 engages the 'groove 41 in the bushing 31 and the V groove in this pulley |20. As the spindle rotates motion will be transmitted by each of these belts to theirv pulleys and through their shafts to the pulleys at the opposite end and from them to the creel. The pulleys at the opposite ends of the shafts are of the same diameter.

leys by reason of the rotation of the spindle will impart to the creel by reason of its bushing a, drive in the opposite direction equal to the driveof the spindle. The bushing ||2 is stationary. It drives the shaft ||0 one revolution for each revolution of the disc 30 and the creel is driven with reference to the spindle one revolution yfor each revolution of the disc in the opposite direction. Consequently the creel is stationary or does not move with reference to the casing 25 except that there may be some possible creeping due to slip of the friction belts along From the above it will appear that the creel floats on the spindle but the ratio of drive is such that the creel does not rotate with reference to the casing. Other means of holding the creel from turning which are equivalent to Therefore the drive which is imparted to the pulthe cable is lead downwardly through the bore |35 to a means forperforming the next opera.- tion thereon. The pulley I 31 is revolved so as to place additional twists in the cable. The rotation'will be such as to put about one or two turns additional in the lcable between the grip thereon due to the ,figure eight lead of the wire as the cable leads to the drums |4| and |42. However,

as the cable leads `away from the drums |4| rotation will cause the twist to be taken out of the cable an amount equal to that which is put into the cable on the opposite side of thenip thereof.

Accordingly, the effect of the mechanism is to place additional twist in on the feeding-in side but to take out this same amount of twist on the.

feeding out side of the nip of thecable and accordingly no resultant twist occurs. Although no resultant twist occurs, a change in thewire does occur inasmuch as the additional twistput into the wireserves to set the strands in their helical formation and provides a stress free wire so far as tendency to untwist is concerned after it leaves this operation. Accordingly if the wire is cut the several strands donottend to fly apartbut remain in their laid helical relation.

j Straiahtener After passing from the false twisting apparatus the cable passes through a straightener 'desig.

nated generally |50 (Figs. 1 and 3) which-consists of staggered rolls |6| and |62 between which the` wire extends andis flexed back and forth so as to take any kinks out of the wire and assist in laying the strands in the desired form of the cable.V The flexing occurs in right angular planes.

` Wire feed mechanism In order to draw the wire through the straightener, the false twister, and from the supply lpack- Reelng mechanism The cable'is packaged orreeled (see Fig. 13) upon the cylindrical barrel |10 of a suitable spool which may be removed from the machine and l which is driven by a cork covered cylinder |1| supported on the arm |12 `pivoted on a shaft |14 The tension on'the cable leading' tov 4 r n and held against the surface of the cylinder by the weight |13 at the end of an arm 226 extending from shaft |15 in the opposite direction.

aeoaees ber lai may slide and also roch so that eitherof the nuts lef and les may be engaged with one of the threaded shafts. The tube carries the pulley |154for the guiding of the cable itt on to distance that the belt extends into this pulley will determine the circumference which is edective to turn the belt. This belt 221 (see Fig. 13) is trained over a fixed pulley 223 mounted as at 224 and thence about a second pulley 225 on shaft |14, and then extends about apulley 228 on a shaft 229 carried by an arm 230, which arm is pivotedvto swing about the pivot 23|. This arm may be swung about the pivot 23| to draw the belt into or permit it to extend to a greater diameter of the pulley 22|. Such 'swinging is effected by the bolt 232 passing through the boss 2&3 and adjusted by a head 235 through the abutthe package ild. The yoke itil has an upstanding arm @ed which as it moves near the end of its stroke will engage the iin le@ held by arm m1 in adjusted position along the rod ide, while thearm |88 pressed by spring lil@ tends to move the arm |85 so as to rock the yoke iti. After the larm m5 of the yoke has traveled so as to pass beyond the iin |86 the arm idd will snap the yoke |85 over and disengage the nut ft2 and cause engagement of the nut 6&3 with the threaded shaftv |18. The arm me will then travel in the opposite direction along the oppositeside of the fin it and will first engage the iin |96 and will then engage the arm 92 which by reason of spring ist will press the arm @e5 in the opposite direction vor to the right in Fig. l1 as the arm slides along rin iti until the arm E85 passes be= yond the extent of the iin Edi when this arm ist will then snap the yoke in the opposite direction so as to disengage the nut ESS from the threads |18 and again engage the nut E82 with the shaft |19 that the yoke may reverse its direction. The traverse mechanism will thus reverse itself for the reciprocation of the pulley back and forth to the axial extent of the package to he formed.

The drive for the various parts ment engaging the boss.

The shaft 11d has a pulley 24|) about which a belt indicated at 2M extends to drive a pulley 242 on. shaft 2&3 at the end of arm |12 upon which the cork drum |1| is provided so as to rotate this driving drum at a constant speed which is insurface contact with the packaging drum 2|16 so' as to reel the cable thereon.

lThe drive for the traverse is taken from shaft I B A(see Fig. 14) upon which the take-up pack.-

age is mounted. The shaft is equipped with a Reeves drive pulley having halves, the v movable half 252 being urged by spring 253 toward the fixed half 25E. 'A .belt 254 engages the separable pulley' and also a pulley 255 which drives the gear 259 (see Fig. 16) and in turn the

gears

The drive` for the false twisting mechanism shown in Figs. 10 to 12 is taken from the shaft lThe main driving motor (see Fig. 9) isdesignated 2u@ and is provided with an armature shaft 2PM carrying a pulley' 2&2 over which three v belts 2&3 extend to engage the pulley 2cd having three cooperating grooves for the three belts 2de whereby a direct 'drive is provided for the spindle 2d to drive or rotate the flyer disc 80 which revolves,

the cable about the. hollow spindle. The mechanism for maintaining the creol stationary while the spindle is driven by means 'of the shafts Iliiancl has been explained.

At the lower end of the spindle 2d a worin 2&5

- (see Fig. 3) is provided which drives the worm wheel 2de which in turn drives through shaft 2&1 the gear Zed and in turn this gear drives the gear 2&9 (see Figs. S, i8. and i9) through the change gear 2l@ mounted upon the swinging arm 26| and having a slot i2 through which the binding means 2li; passes to hold the arm in a position to cause the change gear 2i@ to engage the gears 2te and 2te to transmit motion from one to the other. The gear tilt is mounted on the shaft 2 le upon which the drum itl is mounted and by means of which the same is rotated. The

work. which .embraces the drums it@ and le! causes rotation of the drum itil.

The drive for the packaging mechanism is taken from the driven drum |551 of the feeding mechanism (see Figs. i8 and 19). The drum lll is mounted upon a shaft 22d which also carries a sf-pulley 22E which is of the split type having a spring 222 to urge the two parts together. The

25 upon which is a pulley 265 which operates a belt 2&5 in turn rotating the pulley 261, which is carried by an arm 268 pivoted as at 26@ vabout a pin 21u supported in the bracket 21|. A bracket 21|' pivotally mounts an arm 212 which carries a pulley 213 urged into engagement with the belt 2&5 by a spring 214, the arm 212 being pivoted as at 215. A shaft 216 is driven by the pulley 261 and this shaft carries a Reeves drive pulley 211 having a spring 218 to urgevthe two halves of the pulley together. A-belt 219 extends about the pulley 211 and also extends about pulley |21 of the false twister device. The drive may be changed by dra-wing the belt 21g further into or letting it out to a larger diameter of pulley 211. In order to adjust the position of the belt 219 in pulley 211 the pivoted arm 268 barrios a swivelly mounted nut 28B which may be moved vby a threaded shaft 28| having a handle 2% extending through the casing 283 so as to swing the arm 2&8 about its pivot 210 to vary the position of the belt 219 in the pulley 211. Thus the relative speed of the false twister mechanism may be adjusted. As the swinging of the arm 258 occurs the pulley 213 will be moved by a spring 214 to take up any slack which might occur in the belt 286.

Amotor control mechanism (see Fig. 9) designated 233 is driven from the spindle 26 by pulley Zdd through belt 28S engaging pulley 28? which is so connected into the field of the motor 'which drives the spindle so that when the stop mechanism is operated-to stop the machine the field of the motor is reversed so that electrically a force is acting to turn the motor in the opposite direction to bring the spindle to a stop more quickly. This mechanism so operates that when the spindle slows down beyond a certain f 2,4oo,sas

niet m insulated as at m and connected tothe annular contact 293 `.by the bus bar or lead 321.

predetermined number of revolutions per minute the switch which vcausesa reversal of the ileld is thrown out and the spindle is permitted to come to rest.

" 'Strand breakage vstop motion machine is arranged to stop upon the; breaking of one ofthe strands of the creel supply packages by the arrangement shown more particularly in my copending application Serial No.

508,133 and shown herein at Figs. 2, 5, and 20 to 212 inclusive.

Each oi' the guide posts 55 (see Fig. 20) consists of a solid upstanding member 290 which is threaded as at 29| into the creel support 42. A bearing 292 is provided on this member 290 and a similar bearing'is'provided near the upper end of the member, ,and a sleeve 293 is rotatably supported onthese bearings which may freely ro-v tate as'the strand designated 10 is drawn about this guide post. A collar or circuit closing member 294 is slidably related to the sleeve 293 and will mov'e by gravity to the lower part ofthe sleeve when free to do so. This collar has an outwardly-rounded flange 295 to rest upon the strand material 10 so as to lbesupported thereby and preventedfrom gravitatingto its lower position so long as the strand material extends about the post. However, when this strand material breaks the collar will slide to its lowervmost position.

An annular electrical contact strip 2951s sup/- ported by insulation 291 from the creel 42` and is provided with openings'299suicient so as to place the contact strip from each of the guide posts which extend therethrough. An electrical connection may be made'between the strip 296 and post by the collar when in its lowermost position.

The flange oi? the creel is equipped with a-boss 299 having a bore 300 (see Fig. 24) in which the insulating `Vsleeve 30| is -mounted This sleeve carries abrush 302 pressed by the spring 309 which may be adjusted by the threaded rod 304 so that the desired pressure may be obtained and which rod is held in position-bythreadingly engaging a part of the bushing. Electrical connec- -tion is established between the` brush 15 and the annular-'contact 295 by a strip 305 secured as at 305 to the member 293 and by nut 301 to Counter A counter 330 (see Figs. 1 and 25) is provided to indicate vthe length of cable, which has passed through the machine and to'stop themachine and rotates shaft 333- (see Fig. 2 5) to drive gear 334 which in turn drives gear 335. A mutilated gear 336 has a tooth which turns the member 331 one tooth each revolution to revolve shaft 333. This shaft in turn has a mutilated gear 339 to turn member 340 one tooth each time it revolves and each of these'parts serve to rotate certain indicatingA wheels to record the length produced. Gear 340 rotates shaft 34| which carries a contact 342 to engage contact 343 to close a circuitand cause stopping of the machine. 4

belogged on and olf in starting-by electrical controls or it may be operated forward or reverse.

Also the motor may be stopped upon opening of the doors I 21 which control a guard switch, by the `counter arriving at a .predetermined count or by the drop wire arrangement of Fig. 20 when a wire strand breaks. Likewise a so-called plug-in switch which operates to reverse the motor field is provided. The circuit' including all of this arrangement is shown in Fig. 26 which will show` the electrical control provided.

' To start the machine'by motor 200 all switches and thermal overloads must be properly set andthe selector switch properly set for the desired directional rotation of the motor. Assuming the selector switch has been set for a so-called forward rotation of the motor on the run position,

- then by the starter button 350 the initial circuit will be closed through which relay I is energized.

This circuit includes the line 35| extending from the transformer 349 through terminal C-3, stop button contacts, starter buttoncontacts 352-353, terminal C-I, coil 354 of relay I, terminalG-L guard switch, terminal P-2, counter switch, terthe threaded rod 304 to' establish electrical connection between them.

- The brush 332 engages an annular contact member 303 which is insulated as'at 309 Afrom the diskA 33 but so locatedthat 'as the disk revolves the annular member 303 by a strap 3| I secured to The framework 25 is alsoequipped with a boss 3|3 (see Figs. 2 and 22) having a bore v3I1 with insulating bushings 3| 3 therein which holds a threaded member 3 I3 to adiustably engage thespring 323 which urges the brush 32| against V the annular contact member 3|3. A certain 'terminal these members by bolts3| 2 and 3|3 through in` sulatingbushings 3 I4 in both of said disks such arrangement by

nuts

322 and 323 enable the circuit'iead 324, to be secured thereto.

The package on the upper disk is similarly sup mlnal P-I and thence by line 355 -to'contact of transformer. Energizing of coil 354 of relay I will'close the sets of

contacts

355 and 351 thereof.

The circuit to the magnet coil of the forward switch includes the line 35| extending from the transformer through terminal 0 3, stop button contacts, line 353 to terminal overload 359 and 350, line 35|, bridged contacts 351 of relay I, terminal C- 2, bridged contacts 332 of forward position of .selector switch, line353, terminal F-I line 334, coil 335 of forward switch, line 353, closed contacts 351 of'r'everse switch, terminal P-I and by line 355 to transformer. Energizing of coil 395 of forward switch will move mechanism to close sets of

contacts

333, 339, 313, 31| Aand open contacts 312. fromterminal'LI-Ll and L3 to terminal T-I, T-2, and T-3 through

contacts

313, 339, and 333 respectively. Rotation of motor in the forward direction will actuate' the plugging switch to bridgethe contacts 312-313 or 313' thereof.

. Upon energizing ofr'elay I and actuating of the forwrd switch a second circuit to coil354 of relay l will be established and the starter button may be released vto open the line therefrom to terminl C-l.- This Second circuit includes the line plied through post 35 (see Fig. 21) with a con- 75 35| vextending from transformer 349l through This will close the lines extending of starter button, bridged contacts 314 of jog run switch, terminal J-|, contacts 356 of relay I, line Upon the bridging of the drop wire contacts by4 294 a circuit is established to energize relay 2 and open the circuits to relay and to coil- 365 of the forward switch which stops the motor.

The circuit energizing relay 2 includes the line extending from the ground 380 of the transformer, line 396' from P-I, from ground 33| through bridged contacts of drop wire,

line

33,2,

coil 333 of relay 2, line 335, contacts 351 'of relay line 364, overloads 350, 359,1ine 385 to terminal 0 4, stop button contacts, terminal C3 and line 35| to transformer 343. Energizing the coil of relay 2 will open contacts 311 of relay 2'and stop ow of current through coil 354 of relay l.

This will de-energize relay l and open circuits at contacts 353-353, This action will de-energize rcoil 365 in the circuit now opened at contacts 351. Mechanism of the forward switch will now be actuated to open contacts 363-, 369, 310, and 31|lfand close contacts 319 to establish a closed circuit for the coil of the reversing switch. This latter circuit includes the line 355 from `the transformer, terminal P-i, contacts 312 of forward switch, coil 335 of reversing switch, line 33?, terminal R-2, contacts @i3-312 of plugging switch, line 339, terminal N, terminal J'2 contacts 339, bridge 33t-'oi' jog run, line 39|, contact 353 of starter button, bridge 392, .contacts of stop button, terminal @-3 and line 35| back to transformer 339.

Contacts

393, 394, 395,

396 will be closed and contacts 393 'opened when the reversing switch coil is energized. Unes L-I, L-Z and L--3 will now extend through the

closed contacts

393, 394, 395 of reversing switch and from there to terminals li-3, '1-2 and T| to motor. The rotation of the motor will now be in the reverse direction which will actuate the plugging switch to open contacts 312-313 and open the circuit to the reverse switchcoil 386, de-energizing the same and permitting the mechanism of this switch to open

contacts

393, 394, 395, and 396 thereof to open lines L-I, L-2, and L-3 and bring the motor to rest.

The second circuit for coil 353 of relay will be similar to the second circuit established as previously stated when the forwardswitch is actuated with the exception that thecircuit will be closed through contacts 396 of the reversing switch. These two contacts are connected inz parallel to now open contacts 31| of forward switch.

-If the drop wire contacts are now bridged a circuit is established to energize relay 2 to open contacts 311 in the second circuit of coil 354 of relay i. De-energizing relay I will open contacts 351 of relay in which circuit the coil of revers- V.ing switch is located. This will dei-energize the reverse switch coil and-permit opening of

contacts

393, 394, 395, 396, and close contacts 331. The flow of `current' from lines L-|, L and L-3 to themotor 233 will now be interrupted.

" A closed-circuit will be -establish'ed for coil 335 of forward'switch through closed vcontacts 391 and contacts 3'|2'313' kept closed by the momentum of motion of motor. This circuit will include line 35| extending from transformer 343 through 1 ine 35|, terminal C- 3, contacts 0f stop terminal C3, stop button contacts, contact 353 button, contact 353 of

starter button

314, 393 and 333 of job run, line 393, terminal J2, line 388, terminal N, contacts 312, 313' of plugging switch, terminal 4F2, line 399, terminal F-I, coil 335 of forward switch, closed contacts 391 of reversing switch, terminal P-| and to ground or left contact of transformer.

The venergized coil 335 will actuate the forward switch mechanism to close the ,circuits of lines S|, S-2, and S-3 through

contacts

368, 369, 319. The motor will now be set into motion in vtheopposite direction and provide a similar reversal of the plugging switch.

If it be assumed that the selector switch has been set for the so-called reverse direction, pressing of the starter button will establish the same initial circuit to energize relay as if the selector switch were set for forward rotation as previously described, that is from transformer, terminal C-3, stop button contacts, starter button contact 352, 353, line 433, terminal C-I, line 43|, coil 354 of relay line 319', terminal G-|, guard switch, terminal P--2, counter switch, terminal P-I and by line 355 to transformer. When the selector switch is set to reverse position the contacts 433 are bridged. In this situation no current can ow to coil 365 of forward switch because contacts 362 in selector switch are open gize the coil 336 of reversing switch. This circuit includes line 35|v extending from transformer through terminal C-3, stop button contacts, line 358, terminal C-'4, contacts 351 of relay i, line 464, 'terminal C-2, line 499, contacts 403 of selector switch, line 406, terminal R|, line dill', terminal R-2, line 381, coil of reversing switch, contacts 312 of forward switch,l terminal P--i and to ground or by line 355 to transformer. Energizing the coil of the reverse switch will actuate the mechanism to open contacts 393 and

close contacts

393, 334, 395, and 395. This will close the lines L-I, L2, and L-3 to motor in the manner previously described and set the motor in motion inthe so-called reverse direction. The plugging switchy will be actuated by rotation ofthe motor to close contacts 312-3l3', which will open contacts 312-313 and interrupt theforward switch mechanism to open contacts 363,

369 and 31B and open the lines of current to motor.

The initial circuit to relay as well as the second circuit established for maintaining relay l in energized condition each include the counter switch and guard switch. Should either of these switches be Opened the iiow of current to relay i will be interrupted and the motor stopped.

All circuits also extend through contacts of stop button switch and to deenergize the circuit it is merely necessary to press the stop button'.

The Jog run includes two sets of contacts 31s and 339. Contacts 314 may be electrically connected. On the jog run the switch is set to have contacts 314 open. The second circuit established for relay includes contacts 314. If these are set to be in open condition no second'circuit is established and'releasing of the starter button Willbring themotortorest.

The circuit to relay2 vcan only be vestablished through groimd extendingthrough the drop wire 234. Consequently" opening of counter and/or' guard switc will not set any circuit in motion to 1. In a wire cable machine, a creel carrying a plurality of supply packages ofy wire strands, a I hollow spindle through which the strands extend,

means for twisting and laying the strands helically, means to false twist the laid strands in the same direction to set the helical lay of the strands in the f ormed cable, means to oppositely flex the cable to remove kinks therefrom, means to engage and feed the vcable through said means, a

measuring device associated with the last said mans and driven thereby, and means to reel the ca le.

2. In a wire cable machine. a creel carrying a plurality of supply packages of wire strands, a

hollowvspindle through which the strands extend, means for twisting and laying the strands helically, means-tov false twist the laid strands inthe same direction to set the helical lay of the strands in the formed cable, means to oppositely iiex the cable to remove kinks therefrom, a pair of drums about which the cable is wound a plurality of times and means to drive one of the drums to feed the cable through said means, a measuring device associated with said drums and meansto reel the cable.

3. In a wire cable machine, a creel carrying a plurality of supply packages of wire strands, a hollow spindle through which the strands extend,

means for twisting and laying the strands helically, means to false twist .the laid strands in the same direction to set the helical lay 0f the 'strands in the formed cable, and means driven from the spindle to rcel thecable, and means to count the length of cable made. 4. In a wire cable machine, a, creel carrying a plurality of supply packages of wire strands, a

hollow spindle through which the strands extend, means for, directing the cable radially outwardly of the spindle and then in the oppositedirection,

means for rotating the spindleand the radially "ing of the drop wire circuit will cause a reversal rotating the spindle, means for revolving said ofmotor direction. strands about said creel for twisting and laying I claim: the strands helically, means driven by said spindle v to false twist the laid strands in the same direcl and rotatable with said spindle and extending at right angles to its axis and With a rotating guide at its periphery, means to direct the strands from through the spindle radially outwardly of the disk and over said rotating guide, a guide positioned above said creel and over which said strands exftend from said rotating guide for revolving said strands about said creel to double 'twist and lay the strands helically, means to false twist the laid strands in the same direction to set the helical lay of the strands inthe formed cable, and means driven from said spindle to reel the cable.

9. In a wire cable machine, a vertically disposed hollow spindle, means for rotating the spindie, a creel rotatably supported wholly on said spindlev and carrying a plurality of supply packages of wire strands; means for driving the. creel from the spindle in the opposite direction from the spindle a number of revolutions equal to the y rotation of the spindle, means for directing the wires from the supply packages through' the hol- 'low spindle, means -for guiding and revolving the wires about saidspindle and creel for twisting and laying the strandshelically, 'means to false twist the laid strands in the same direction to set the helical lay of the strands in the formed cable, and

means driven from said spindle to feed the cable through said last said'means to reel the cable.

l0. In a wire cable machine, a vertically disposed hollow spindle, means for rotating the spindie, a creel rotatably supported wholly onsaid twist and lay the strands helically, means to false twist the laid strands in the same direction to set'v the helical lay of the strands in the formed cable, and means driven from said spindle to reel the cable.

- 5. Ina wire cable machine, a creel carrying a plurality of supply packages of wire strands, a. brake foriretaiding the rotation oi' each of said packages, a hollow spindle through which the strands extend, means for driving said spindle, means for twisting and'laying the strands helically. means to false twist the laid strands in the same direction to set the helical lay of the strands in the formed-cable, and means driven fromsald spindle to reel the cable.

8. In a wire cable machine, a creel carrying a plurality of supply packages of wire strands, a plurality of guides about which the wire strands from each package extends to change its direcv lay of the strands in the formed cable, and meansY driven from said spindle to feed the cable through false twist the i'aid strands in the same direction to set the helical lay of the strands in the formed cable, and means driven from said' spindle-tol reel the cable,

7. ,In a wire cable machine, acreel carrying a.

plurality of supply packages of vwire strands, a

vertically hollow spindle extending through said creel and rotatable relative thereto spindle and carrying a plurality of supply packages of wire strands, means for'driving the creel from the spindle in the opposite direction from the spindle a number of revolutions equal to the rotations of the spindle, means for directing 'the wires from the supply packages through the hollow spindle, a disk carried by and rotatable with said spindle and extending at right angles to its axis with its periphery extending beyond the outer edge of said creel, a rotating guide at its periphv v ery, means to direct the wires from through the spindle radially outwardly of the disk and over said rotatinggui'de, a guide positioned at a location above. said spindle and over which the wires extend from said rotating guide to revolve' the wires about said creel to double twist and lay'the strands helically,`m'ea ns to false twist the laid strands in the same direction to set the helical the last said means.

11. In a wire cable machine,'a creel comprising a deck carrying a plurality of packages of wire strands, a vertically disposed hollow spindle extending through said creel 'and rotatable relative thereto, means for driving said spindle, an additional package of wire strand serving as a core, and supported on said creel above saidv spindle, means for directing all of the strands through means `for twisting and laying the other strands helicaily about said core, means to false twist the and-through which the strands extend. mecnsfor 1I laid strands in the same direction to set the helical of the strands through said spindle, means for i twisting and laying the other strands helically about said core,l means to false twist the `laid strands in the same direction lto set the helical lay of the strands in the formed cable, and means driven from the spindle to reel the cable.

13. In a wire cable-machine, a creel carrying a plurality of supply packages of wire strands, a

,hollow spindle through which the strands extend,

means for rotating said spindle, means for twisting and laying the strands helically, means to false twist the laid strands in the same direction to set the helical lay of the strands in the formed.

cable comprising a tube driven from said spindle and through which the cable extends, means to the cable is trained in the form of suiiiciently to gain a bite upon the cable and reing and laying the strands helically,.means driven from said spindle to faist twistgthelaid strands in the same direction to set the helical lay or the strands in the formed cable comprising a tube, a pair of pulleys carried .by the tube over which afigure eight volve the same about its axis, said tube being driven from said spindle.

16. In a wire cable machine, a creel carrying a4 plurality of supply packages o! wire strands, a hollow spindle through which the strands extend, means for rotating said spindle, means for twist- I ing and laying the strand'shelically, means to grip the wire cable and revolve thesame about its 4 axis, and means driven from said spindle to reel the cable.

14. In a wire cable machine, a creel carrying a plurality of supply packages of wire strands, a hollow spindle through which the strands extend, means for rotating said spindle. means for twisting and laying the strands h'elically, means -to false twist the laid strands in the same direction to set the helical lay of the strands in the formed cable comprising a rotatable tube, a pair of pulfalse twist `the laid strands in the same direction to set the helical lay of the strands in the formed cable, and means driven from said spindle to reel th'e cable, and means to count the length of cable made.

17. In a wire cable machine, a creel carrying a plurality oi supply packages of wire strands, a hollow spindle through which the strands extend, means for rotatingthe spindle, means for twisting and laying the strands helically, means driven from said spindle to false twist the laid strands the same direction to set the helical lay of the strands in th'e formed cable, and means driven from the spindle to reel the cable.

. ALBERT E. WINSLOW.

leys carried by the tube. over which the cable is l I