US878617A - Apparatus for applying insulation to electrical conductors. - Google Patents

Description

PATENTED FEB. Il, 1908.

L; w. nowNBs. y l A APPARATUS IOR APPLYING INSULATION To ELECTRICAL ooNnUcIoRs.

7 SHEETS-SHEET l.

APPLICATION FILED TUIR 15. 1905..

W, L A@ 4 attouwqx- Nm 870,617. PATENTED FEB. 1-1, 190s. L. W. DOWNBS.

APPARATUS FOR APPLYING INSULATION TO ELECTRICAL GONDUGTORS.

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P A NE J 90 Hanns-sum 2.

@uvamtoz' A w @bw- PATENTED rBB.11, 19os.

L. w. Downs. APPARATUS 1011 APPLYING INSULATION To ELEGTRIGAL 001111111110118,

APPLIUATION FILED JUNE l5. 1905 o. 878,617. PATENTED FEB. l1, 1908.

LjW. DOWNES.

APPARATUS FOR APPLYING INSULATION TO ELECTRGAL GONDUGTORS.

APPLIGATIN FILED JUNE 15.1905.

- 7 SHEETS-SHEET 4.

No. 878,617. PATENTEB FEB. 1l, 1908. L: W. EWNES.

APPARATUS FOR APELIYINGRINSULATN TO ELECIRICAL` GONDUGTORS I @Xmwmowa 7WD" mi? A @Hannut-Y No. 878,617.. PATENTGDITEB-11, 1908.

L.. W.. DoWNEs. APPARATUS FOR APPLYING INSULATION To, BLEGTRIUAL'GONDUCTORS.

AFPLIGATION FILED ININE 15,1905.

7 SHEETS-SHEET 6.

g1 mento@ @l mmm ZAMWWA PATENRED THB; l'lff.`

APPARATUS FOR APPLY-@ING INSULATION T0 ELECTRICAL GONDUGTORS.-

AEPLIOATION FILED JUNE 15, 1905.

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witwassen Be it known that I, Louis W. Downes, o- Providence, Rhode Island, have invented a" unrrnn STATES PATENT OFFICE. Louis W. Downes,- vor rRovinnNenIunoDErsLA-Nn; arr'anafrus Fon APPLYING ms'una'rxoirro luc'rmcnmcoxmtmu Speciiicationof Patent.

11mm' roben; .1908;

@puatron fue@ June 15.11905..` sesaim. 265.389.

To' all whom 'it 'may concern:

V new and 'useful Improvement inAppara'tus lIl() Wire'.

for Applying Insulation to ElectricalQ.Gon-v ductors, `Which invention is ullyset forth in vthe following specification. l

' This inventlon consists of improved apf paratus for ap lyingiibrous insulating iua= terial-particulhrly asbestos-to the-surface -of an electric conductor or Wire by spirally or Winding said' material on the*4 e diiiiculties of applying asbestos ber to a wire in a loose, straightened', un-

Wrappinlgl twisted condition are Well known. Such asbestos ber can be procured in the marketin the'form of silver, or roving, as it is better known toVY the trade. In this and analogous forms there is little coherence between'the individual bers and they pull apartv and break under slight strain, For these reasons it has been the usual practice to employ asbestos in the form of yarn, Which is as.

bestos sliver twisted to give it greater tensile strength. While 'asbestos yarn may be more readily handled in tlie act of applying it to the Wire, it presents`- little advantage after it is on the conductor.I There are s me disadvantages.; the natural umpiness o 'as'- bestos isflmore apparent i-n he yarn than in the ber \in an untwisted, straightened or carded state. When applied in an untwisted, straightened condition the' fibers adhere to the Wire in a loose, fluffy or locculent condition, enabling them to be readily compactedinto an even layer, for which reason. the subsequent iinishing operations can be more leffectively ycarried out; and furthermore, not only is theyuntwisted, straightened fiber less expensive than the yarn, butit'can, withv proper apparatus, be

applied in minimum quantity, producing an insulating covering of minimum thickness, if desired.

I am aware that it has heretofore been proposed to Wrap untwisted, carded asbestos about a Wire by causing the Wire, instead of the asbestos, to rotate, but this '.lnethod is seriously objectionable, 'if not impracticable,

particularlyfin covering heavy and very iinef conductors; "in the case of heavy conductors itnecessitates the rapid rotation of heavy masses of metal, which is a difficult and dangerous operation; in the case of fine or but is reY gdelivers'jthe-iiber to. theoperating parts'on 70 j very I smallf conductors' 'there'r Visfgreift' danger 55 fof'twistinghdzbrehinsif-thefwifa Ihnv frota'ting with ,thec'arrien A'Accordingito my" present invention, which embraces'ap larap 65 tus embodying the generic invention o my" saidapp' cation Sr. No. 215,694', .tlresource of supp' of the fiber' is not on the carrier,

` atively fixed contiguous thereto and' the carrier as the.' latter rotates, thereby;- avoiding 'stoppages necessary to ,charge the' receptacle or* replace the spools' .or cops. Other objects 'of theinvention will be ap- `parent from the description which follows; y among these may be mentioned applying to the Wire a' uniformlay'er ofstraightened untwisted iib'er, the machine being adapted to vary the layer to aminimum thickness and to operate upon; of different sizesV and thereby especially adapted to the production of so-cal1ed magnet-Wire.

In the accompanying drawings illustrating several -embodimentsofthe invention 'Figure l` is a front elevation, with parts in 85 section; Fig. 2 is a side elevation', Fig, 3 is a top plan view With portions of some of the parte broken' away and omitted Fig. 4 is a orizontal sectional view on line 4%, Fig. 1, through parts mounted on the carrier, a pcr- 9o tion of the circular plate or carrier being broken. away to show parts mounted and operating on the under-side thereof.; Fig. 5 is a detail vertical sectional view taken on line `5---5 of Figs. 3 and 4; Fig. 6 is a detail per` 95 spective of a bearing block which is a'djustably mounted on the carrier Fig. 7 is anV enlarged plan view (with parts in section) of the mechanism for delivering the ber to the card-Wheel; Fig. 8 is a'vertical section on line lo@ S-8 ol F ig. 7; Fig. 9 shows in detail parts of the ber feeding mechanism; Fig. 1() is a vertical sectional view through the rotary carriery and some of its associated mechanism; and Fig. l1 is a plan and Fig. 1 2 an' 105 elevation showiiiga modification of parts of the mechanism.

Referring iirst to Figs. 1, 2 and 3, pulley driven from a suitable source of power, carries a bevel gear 16 meshing with a similar gear 17 on a vertical shaft 18. A handle 19 at the upper end of this shaft serves to turn the parts of the machine to any desired position when the power driving means are disconnected. A worm 20 on shaft 18 drives a worm-wheel 21 on a shaft 22; gear-Wheel 23 on said shaft meshes with a gear-wheel 24 on a shaft 25, and a pinion 26 on the latter shaft y meshes with large gear 27 journaled on a shaft 28 supported between arms 29, 29 of the framework. A drum or sheave 30 secured on the hub of gear 27 isslowly rotated through the gearing above described. The electric A 'conductor or wire 31 passes upward through a pot 32, containing` a liquid or semi# liquid adhesive material (preferably shellac) Ythrough a rotary carrier 33 where the fibrous material is applied, through a guide 34 mounted on the carrier, and then several` fast on a hollow shaft 38 (see particularly Fig.

10)..having a reduced and exteriorly screw threaded upper end projecting through a screw-threaded openin 39 turned down tightly against the upper surface ofthe carrier tightly clamps the same to the shaft. The opening through the hol- -low shaft is of such diameteras to permit large sizes of wire toffreely pass upward' i therethrough. A cap-nut which may be :changed for different sizes of wires, is

screwed into the extremity of shaft 38 above nut 39; said cap-nut has a taperingA opening, the smallest diameter of which is just suflicientto permit free passage of the wire. It follows that between cap-nut 40 and guide 34, where the fibrous covering is applied, the wire can have little if any lateral movement. 41 is a hollow worm having a'iiange through which screws pass to fix fit tothe bracket or bridge piece 42 of the framework. A short hub 43 castl on the underside of carrier 33 rests against and turns upon the upper edge of hollow worm 41", while hollow shaft 38 passesthrough said vworm. This worm imparts movement to artson the carrier during rotation of the atter, as will now be more fullyy explained.

.Referring particularly to Figs. 4, 5 and 6, shaft'45 is .'ournaled in a depending. bearing A d to the underside of carrier 33. 'A' worm-wheel 46 secured to the inner end of 0' in carrier 33; a nut cal boss 48l which projects upward through a slot 49 in the carrler (see Figs. 3 and 4); A rib 50 on the bearing block also engages an elongated opening 51 (Figs. 4 and 5) in the carrier and serves to guidel the block in its movement of adjustment which may be effected by turning a bolt 52 passing through a bracket 53 (fixed to the underside of .the carrier, Fig. 4) and engaging a screw-.threaded socket 54 in the bearing block 47'. y Bolts 55 and 56 passing through slots in carrier 33, serve to rigidly clamp the block in the position to which it is adjusted by bolt 52.

short shaft 57, supported in bearing 58 of block 47 ,gcarries at ita'louter end a gear 59, and at itsl inner end a' spiral gear 60. Gear 59 meshes Iwith and is rotated by a gear 61 on, the outer end of shaft 45. The ycarrier 33 is bulged upwardly at its edge on one side, as`

clearly sho wn in Figs. 2 and 3, to accommodate these gears 59 and 61 and provide space for.

the substitution of gears of different relative sizes. The spiral gear 60 drives a spiral gear l63 on the lower end of a vertical shaft 64 which latter passes upward through boss 48 Said wheel` .69 in said arm. The card wheel shown in the drawing'and as preferably formed, consists of a pulleliT covered with suitable card clothing,-shown in transverse section'in Figs.` 1 and 5, and the teeth of which may or may not be inclined.

Referring now'v to the mechanism for feeding. the fiber to position to be picked up by the card-wheel as the llatter is carried around` by the carrier 33, 70 is a pulleyA on shaft' 22 driving a pulley 72 through abelt 71; Pulley 72 is fast on a shaft 73 journaled on the unden side of atable 74 whichlatter overhangs the edge, of the Carrier; as Slightly thaw-the level of card-wheel 65. A ribbed feed roller82 on a shaft 81 is slowly rotated-through the fol-` lowing connections; A worm 75h11, shaft' 7 3 worm-wheel 76 on a shaft 7 7 ,gear -78lon said 120- shaft, intermediate gear 79 .meshing with gear 80 on shaft 81. 83. and 84 aretwofcops 0f' SPOOIS `supported respectively vupon The fiber, preferbracket-arms 85 and v86. ably in the form ofslivef, or roving, as it is commonly known, passes through two funnel-like guide openings 87 and S8 in a bracket S9, and thence between the roller 82 and a spring-metal plate 90. 'The latter is 'pi-voted on a pin 91 at one. end at its athen end held in the desired proximity to the fee-d roller by a screw 92. The parts are so adjusted that the pressure of plate 90 and roller S2 flatteurs. the two or more rovings of fiber and ro-tation of the carrier.

f delivers them-in the form of a sheet of carded voutaud separate the fibers against the surface of theshoe or breaker 94, which is prefy erablv of leather so. as to present a somewhat". soft surface, avoiding injury to the card teeth and retarding the movement of the iibersso that they will be further drawn out, and straightened, if necessary. The straightened carded andloosely separated bers are Afinally picked up and carried away.

' 4in the card-teeth, as shown 94 is supported by a plate 95 (Figs. 7 and 8) '25 1. Shoe -t0 which, it secured in any suitable manner. Toothed 'blade 93 is also supported by said plate, being secured thereto by screws .96

"which pass through an intermediate blocky 99 in arm 100.

" the driving connections described, carries v Ifpe' chanism, the being constantly changedby its rotation on with it the card-wheel 65, the latter being at .the same time slowly rotated on its axis in the direction ofthe arrows by the gearing .operated frorn'the fixed worm 41.

On each rotation ofthe carrier the card-wheel, posi- '.tioned eccentricto the axis of the carrier, .sweeps by the ber delivering mechanism and picks up a quantity of iibers depending upon the rapidity of feed by the feeding .position of the card wheel its axis. It follows that there is a gradual accumulation `of fibers in the teeth of the cardwheel, forming in said teeth a uniform layer of evenly distributed loose, straightcned and carded iibers, said layer extending at all times part way around the periphery of the card wheel, as shown in Fig. The connections for .rotating card-Wheel are so proportioned that the surface speed of the jdueito the rotation. of the carrier.

card-wheel due to its rotationfon its axis is approximately the saine as the speed of movement ofthe carrier and the card-Wheel with relation to the circumference ofthe wire In other words, the cardfavheel and the wire have a -ni'ovemeiit analogous to a sun and planet motion,; the cardwheel representing the' planetary element. The effect produced is an unwinding of the fibrous layer or band from the surface of the card-wheel onto the sticky surface of the longitudinally moving 'wire at the point where the teeth ofthe card- 70 wheel closely approach said Wire, the action of the Wire in thuslicking up the Afibers from the card-surface being somewhat analogous to the action of the doifer which removes the carded material from the card rolls in a carding machine. But preferably the surface speed of tlie card-wheel is slightly lessthan the speed of revolution'of said Wheel about' the. wire, whereby there is a slight pulling and consequently a further stretching and 80 straightening of any unstraightened fibers as they pass from the' card-teeth onto the Wire. To obtain the desired surface speed of card-Wheel 65 for large sizes of wires it is necessary to rotate said wheel at higher speed than for small sizes of'wires. The desired speed of rotation may be obtained by replacing gears 59 andl by others of appropriate sizes according to the particular size of'wire being covered. Furthermore, since 90 the cardfteeth on wheel V65 must almost touch the surface of the wire, it becomes de sirable, in order to avoid the necessity of different sized'card-,Wheels for diferent sizes -of wires, to adjust the position of the card- 95 moved relative' to the fixed-gear 61, as indicated .by dotted lines, Fig. 4, but the teeth of i these gears are of suiicient width to permit of. the desired range of adjustment Without throwing said gears out of mesh. The speed of operation of the feed-roller 82, and 'conse'- quently the rapidity of feedA of the fibrous material and thickness of the fibrous cover'- ing applied to the wire, may be altered by substituting for gears 78, 79 and 80 others of different relative sizes. Furthermore, the relative speed of the longitudinal movement oi the wire may be varied as desired' by changing the gears 23 and 2 4.

Referring `now to the modified structure shown in Figs. 11 and 12, it is to be under stood th at parts of the machine not shown in 12o these figures may be the saine as shown in Figs. 1 to 10. Rotary carrier 110 -is secured to the upper end of hollow shaft- 111 by a nut 112, and rotated by suitable connections to a gear 113 on the shaft. mounted on and rotating with thel carrier .are driven by suitable connections from fixed bevel gear 114 and fixed gear 115, both cast on a hub 116. Screws 117 (dotted lines, Fig. 12) pass downwardly through said. hub r130 All of the parts and secure it to bushing 1 18 fixed in an opening through a part 119-of the frame of the machine. l120, 121', and 122 are card-wheels (the card clothing on the surface thereof being 'shown only in section in Fig. .12) se-v cured respectively on" shafts. A123, 124 .and 125, all of which shafts pass throughbearmgs in the carrier and project below the latter.4 All of -these card-wheels are positioned eccentric to the aXis of the carrier.v Card-Wheelv rotation of 121 is rotated on itsaxis'durin 127) meshthe carrier, by gear 126 (onstu ing withfiixe'd gear 1-15 and'in'turn driving' gear128 fixed on shaft 124'below the carrier. Card-wheel122 is driven through the follow'- ling-connections all below the carrier:- bevel` of worm-wheel 132 drives gear .135 whichin turn drives gear 136 ons'haft 125. Gear 135 rotates on a stud 137. Gear 136 communi'- cates rotary movement to card-wheel 120 through the following gearing: gear 138 on a stud. 139, gear l140 on stud 141, sprocketx142 secured tothe .hub of gear 140,' sprocketl To permit card-wheel 122 to be movedtowards oifrom the aXis of rotation of 'the carrior in adjusting the mechanism to the covering o f different sizes of wires, the vstuds 137 and 139 and shaft 125 mayT be adjusted in slots '143a in the carrier.

Referring now to the means fordelivering fiber to the carrier, 150 is a cop or spool mounted upon a table* atone side of the carrier. vThe fibrous material, preferably asbestos in the form of roving, passes over an upright feed plate against which it is gripped and advanced by a ribbed roller 152A The latter is intermittently rotated by gear 153 meshing with gear 154 on shaft 157 carrying. a star wheel 155, the latter being actuated by a pin 156 on carrier 110.

The operation of the mechanism of 'Figs 11 and 12 is analogous to that of the other figures and requires but little additional eX- planation. The fibers picked up by the teeth of card-wheel 120 each time it sweeps l by the feed-plate '151, are removed from said cardwheel by the teeth of card-wheel 121, from. which latter they are in turn picked up 'fby the teeth of card-wheel 122 and delivered thereby into contact with the sticky surface of the wire carded and straightened into a.

uniform layer. The gearing for rotating the card-wheels on their axes is so arranged and proportioned as to impart to said Wheels-'dif- Forexam le, by'rominute, card-wheel 120 eighteen andtwothirds revolutions per minute, and 'card- Wheel 122 eight revolutions per minute, a

veryeifec'tive relation of surface-speeds is obtained. Thejs'urface speed of wheel 121 'b eingmuch faster, its teeth draw out the 'fiberswhich are-picked vup from the teeth of ,thefslower'movingwheel 120. This drawing out of the'fibers'is repeated as the teeth of thel slower movingl card-Wheel 122` ick them up from theI teethofwheel- 121. speed of wheel 122 dueto its rotation von its axis preferaloiy/l approximates the speed of rally wind lthe vfibrous'lay'eonto. thel longitudinally movingwi're asthe card wheel 1 22 rolls' about the circumferenceof the wire, the sticky surface ofthe vlatter licking up the viibers from the-teeth of said (iard-Wheel,

As will bei-apparent', theirv'ntion is. not restricted tothe particular. form and details of apparatus herein described and illustrated. Furthermore,- changesinthe relation and arrangement of the various parts may be made without departing 'from the natureand principle of the invention ;.for example, two

`or even more fiber-feed mechanisms maybe employed, suitably spaced about the rotatr ing carrier.

chain 143 and sprocket 144 onfshaft 123;. Y

in applying ber other than .asbestos andrfor .covering Wire used for purposes otherthan The invention may, ofcourse, be employed conductingfelectric currents.

1. In anapparatus for f applyingiiibrous insulatingmaterial to a conductor or-wire, a carrierl and means for: rotating 'the ,same abopt the wire, means `mounted upon and movable on the'carrienduringrotation thereof for .applying fiber tothe surface of the .wire during rotation of the carrieifjab.out the Wire, and means apart from the carrier for'deliver- 's the surface movement of the cardfwheel-with.relation to the circumference ofthe wire due to 4rotation of-,the carer,7the effect produced is'to spi-V ing fiber to the fiber-applying means' on the carrier while the latter is in motion.v

' 2. Iii-.apparatus'for applying ibrous'insuff.

latingmaterial to aconductor or Wire,ja'cfar' i rier and means for rotating, the 'saine-.jaboutthe Wire,- means mountedvonftheearner'jfor applying fiber to the surface of :the-wire ing rotation of the carrier;.abontthevwir'e, andmeansapart from the ycarrier fordeliy'- ering fiber into position to be fpicked up 'A the latter is"in`mot1on. v A

3. ln apparatus for applying fibrous-insulatlng material toa conductorforwire, a carrier'fand .means for rotating the "same about.'

the Wire, means mounted upon andj In ovabije- V on the carrier-,during rotation thereoffor afpplyig a layerof loose straightenedfiber to the'surface ofthe wire during rotationf the.

4.1m apparatus for applying-fibrous insu liov lating material to a conductor or Wire, a carrier and, means for rotatlng the same about the wire; means mounted ,onbearin'gs on the carrier-for applying fiber vto the surface of the wi ze during rotation of the carrier about the wire, .driving connections for operating ysaid .fiber-applying means on said bearings to adrier while the latter is in motion.

5. In apparatus for applying fibrous insulating material to a conductor or Wire, a carrier and means for rotating the same about the wire, means mounted on bearings on theicarrier for applying a layer of loose straightened'fiber to the surface. of the wire during rotation of the carrier about the wire, driving connections for operating said fiberapplying means on said bearings to advance the layer 'of fibrous material to the surface ofv the Wire during rotation of the carrier, and means apart from the carrier for` delivering fiber to the fiber-applyingmeans on the carrier While the latter is in motion. f

6.. lnappar'atus for applying fibrous insulating material to a conductor or Wire, ya carrier and means for rotating the same about the'wire, means mounted on bearings on the carrier for applying a *layer'of loose straightened fiber to the surface of the Wire v during 'rotation of the carrier about the Wire,

driving connections for operating said fiberapplying means on said bearings to. continuously advance the laver of fibrous ma.--

terial to thesurface of the wire during rotation' ofthe carrier, and means apart from the carrier for delivering fiber to the fiber-applying means on the carrier While the latter 1s in motion.

7 In apparatus for applying fibrous 11isulating material to a conductor or Wire,

means for feeding the Wire longitudinally, a carrier and means for rotating the same about the longitudinally moving Wire, means mounted upon and movable on the carrier during rotation thereof for applying a layerv of loose straightened fiber to the surface of thewire during rotation of the carrier'about they wire, and means apart from .the carrier fort delivering fiber to the fiber-applying means on the carrier While the latter is in motion.

8. ln'apparatus for applying fibrous insulating material to a conductor or Wire, a carrier and means for rotating the same about the wire, carding means mounted on the-carrier for applying fiber to the surface of t-he Wire during rotation of the carrier, and means apart from the carrier for delivering fiber to said carding means while the carrier isin motion. i

9. Iny apparatus for applying fibrous inw sulating material /to al conductor or Wire, a

-carrier and mea/ns for rotating v.the same about the Wire@ carding means mounted on the carrier for applying fiber to the surface of thewire during rotation of the carlrirfldriving connections for operating "the carding means to advance the fiber to the 'wire during rotation of the carrier, and means apart from the carrier for delivering fiber to' the cardingmeans While thelcarrier is in motion. l

10. In apparatus for applying fibrous in- -sulating material to a conductor o r Wire, a-

carrier and means for rotating the same about the Wire,` carding means eccentrically positioned on the carrier for applying a covering of loose` straightenedv fiber to the surface of the wire during rotation of the carrier, driving connections for operating the carding means to advance. the fiber to the means apart from the carrier but in the path of the eccentrically positioned carding means for delivering fiber to said carding means "11. In apparatus for applying fibrous sulating material to a conductor or wire, a

carrier and means for rotating the same about the Wire7 means on the carrier for a plying fibrous material to the surface of Wire during rotation of the carrier,..`and

t ve Wire, said means being adjustable to.l

different positions for different sizes of Wire, and -driving connections for operating the fibrous material applying-means during rotation ofthe carrier.

12. In apparatus for applying fibrous insulating material. to a conductor or' Wire, a carrier and means for rotating the same about the wire, means on the carrier .for applying a layer of loose straightened fiber to the surface of the Wire, said meansbeing adjustableA to different positions for different sizes of Wire, andfdriving connections for* operating the fiberapplying means-.during A' rotation of the carrier.

13. In apparatus for applying fibrous in-vv y "1.10" carrier and means for rotating thepsam'e about the wire, meansV on 'the carrier vfor sulating material to aconductor'or Wire, ,a

applying-a layer of loose straightened fiber to the surface of the Wire during rotation` of the carrier, drivingconnections for operating the fiber-applying means While the carrier is in motion, and adjusting means ,for changing the osition of saidfiber-applying means and its riving connections for different sizes 'of wire.-

sulating material to a conductor orwire, a carrier and. means for rotating the same about the "wire, means on the carrier for applying a layei` of loose straightened fiber to the surface of the wire during rotation of the carrier; driving connections for operating the fiber-applying means While the carrier is in 14. In apparatus for applying fibrous in motion, adjustin" means for changing the osition of saidli er-'applying means and its liber to' the fiber-applying means on the vcarrierWhile the latter isi'n motion.

l5. l'nvapparatus for applying fibrousV in- "sulating material to, a conductor or Wire, a carrier` and means forrotating the same' about the Wire, liber-carding means on the 'carrier for applying loose straightened liber to the surface of the Wire, said carding means being adjustable Yto'diderent sizes of Wire,

and driving connections -for operating the carding meansrduring rotation ,of the carrier.

16. In apparatus for applying librous insulating material to a conductor or Wire', a

carrier and vmeans 'for rotating the same about the Wire', fiberfcardingmeans on the carrier for-applying loose straightened liber :to the'surface ofthe Wire, said carding means being adjustable to different sizes of Wire,4 driving connections for operating the carding 4i:n eans` during rotation of the carrier, and means apart'from thel carrier for delivering 'liber to the carding' means While thecarrier in motion.

Y 7'. ln apparatus for applyinglibrous iiis'ulating material to a conductor:` or Wire, a carrier andmeans for rotating the same about therwire, a card-Wheel mounted on the carrier fora plying liber to the surface of the Wire,v and riving connections for rotating l said card-Wheel on its axis during rotation of 'the carrier.-

'.18Qln apparatus for applying fibrous in sulating material to the surface of a conductor orpfire, a carrier and means for rotating thesame about the Wire, a eardwheel mounted 'on the carrier for applying fiber to the surface of the Wire, and drivingeonnections for rotating said Wheel on'its axis during rotation of the cairier and -in the same direction as said carrier rotates ata 4 5 surface speed approximating lthe speed of movement of the carrier with relation to the surface of the Wire due to rotation of said carri'en.

Q19.v In apparatus for applying fibrous insulating material to the surfaceof a con'- Aductor or Wire, a carrier and means for rotatingthe same about the Wire7 means for moving the wire longitudinally, a card-wheel onv the carrier for applying liber to the surf face of the longitudinally moving Wire, 'and driving connections for rotating said Wheel on its' axis during rotation of the carrier and 'in the same direction as said carrier rotates at a surface' speed approximating the speed r'of movementof ,theearrier With relation to -jthe, surface ,of the Wire due to rotation of saidcarrier.;` Y 20.Inapparatus for applying fibrous iny riving connections for didei'ent sizes of Wire, andmeans apart from the carrier for deliversulating material to the surface of a con duetor or Wire, a carrier and means for rotat ing the same about the Wire, a card-Wheel mounted on the carrier for applying liber4 to 4the surface o f the Wire, driving connections for rotating said Wheel on its axis during rotation of the carrier and in the samedirec; tion as said carrier rotates` at a surface speed approximating the speed of movement of the lcarrier with relation to tliesurfac'e of the.

wire due to rotation of said carrier, and

Vmeans apart vfrom the'joarrier for delivering liber to the carding means lthereon While the carrier is inunotion.'x v

21. ln apparatus for applying fibrous insulating material to a lconductor or Wire, 'a carrier and means vfor rotating the same' about the wire, a card Wheel eccentrically mounted on the carrier for applying. a ,layer of loose straightened liber tothe surface of the wire, driving connections rotating -said v card-Wheel on its axis during movement of thecarrier toadvance the liber to the Wire, said rotation of the cardavheel being in the sameA direction as the rotation of the carrier and at a lsurface speed approximating the y s eed of movement of the carrier with relation to 'the surface of the Wire, and means apart from the carrier but in the path of the mechanism thereon for delivering liber thereto While the carrier is in motion.4

22. ln apparatus of the character described, tlie combination.with` a carrier and means for 4rotating the same about the Wire,

of earding means on thecarrier and driving connections for operating the same to apply liber to the- Wire 'during vrotation of thc of carding means on the carrier and driving connections for operating the same to apply liber to the Wire during' rotation of' the carrier, and liber feeding meansapartfrom the carrier but in the pathof -the `carding means for delivering liberte the latter While the carrier. is in motion, said feedingineans having a shoe or breaker against which the oarding means act to pick up liber in passing the feedingimeans. 'y

' 24. lnk apparatus of e character described, the combination With a carrier and meansfor rotating the sameabout the Wire,`A

ofl cardingj'means on the" carrier and kdriving connections for operating the same to apply fiber to the wire duringrotation of" the carrier, and liber feeding means apart from l the cnfieif `ixi o11eyps,t',h`ofA the cardingv lspecification n thel presence O15-twol sub means for delivering ber' to thelatter while scribingwirtnesses; l

.the carrier is'inmotionfsaid feedin means f .y .j hav'ig' a. leather, shoe or' breakergaggrinst LOU-IS W"DOW-NE-S lli-'which teeth othe-cardingl'neans 'ct to pick Witnesses:

Ilupber inp'assin the feeding menm W.' S.V SISBON,

In-.testimonyw ereof I hve signed GEORGE W. Smm.

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