US1697410A - bauer - Google Patents

Description

- Jan. 1-, 1929. 1,997,410

' C(G. BAUER MACHINE FOR USE IN THE MANUFACTURE OF TEXTILE FABRICS Filed May '2, 1

6 Sheets-Sheet l Jan. 1, 1929. v M 1,697,410 c. G. BAUER .MACHINE FOR USE IN THE MANUFACTURE OF TEXTILE FABRICS Filed May 1923' 6 Sheets-Sheet 2 @3913 ail tune Jan: 1, 1929. 1,697,410

C. G. BAUER MACHINE FOR USE IN THE MANUFACTURE OF TEXTILE FABRICS Jan. 1, 1929. 1,697,410

c. G. BAUER MACHINE FOR USE IN THE MANUFACTURE OF TEXTILE FABRICS Filed May 1925 6 Sheets-Sheet 4 mm VII I as? Jan. 1, 1929. 1,697,410

C. G. BAUER MACHINE FOR USE IN THE MANUFACTURE OF TEXTILE FABRICS Filed May 1923 6 Sheets-Sheet 5 D 15]. 2/ V W/ Smvamtoz Jan. 1, 1929. I 1,697,410

(I. G. BAUER MACHINE FOR USE IN THE MANUFACTURE OF TEXTILE FABRICS vFil M y 1925 6 Sheets-Sheet 6 /lllllllllllllllllllll VIZ/ i;

Patented u mm); :jsTA

A 1.691410, PATENT OFFICE.-

ewe-Es G. na'unm or. 3300mm, mew YORK, ASSIGNOR, BY MESNE assmnmnnrs,

TQ. CHARLES G. BAUER AND 'EDWIN L. GARVIN.

- moms roa osn m m' muracruan or TEXTILE FABRZICS.

Application filed na -.7,

' My invention relates to machines for use themanufacture ottextile 'fabrics, and

- while the embodiment of the invention herein specifically described is a loom for'weaving i tubular fabrics, it will be understood that certain principles of the inventlon are applicable to various other machines of this generalclass.

-An object of the invention is to improve the construction and mode of operation of machines ofthe character indicated as will here inafter appear.

A more specific object of the invention is to provide in a machine of this character an arrangement of 'electro-magnets or other magnetically-operated devices for efiecting the-laying or crossing of the threads .or.

strands in forming a woven 'or other textile fabric,whereby-the use of complicated mechanisms for this purpose maybe eliminated. Another object of the invention is to rovide. a loom for weaving tubular fabric w iich issimpler in construction, and capable of operating at a hi her-speed and otherwise more cflicient than ltioseheretofore produced.

With these 'and other objects in view the 1 "features of thefinvention consist in certain constructions, arrangements and combinations of parts hereinafter 1 described and claimed, the advanta es of which will be obvious to those skille 'in the art. 4

' The -several features o fthe invention will be clearly i nderstoodfronitlie following de scription and. accompanying drawings, in

which,"

Figure 1 is airont elevation of a wire covering machine embodying the features of my invention in' their preferred form; I i Fig. 2 is a right side elevation of the same; Fig. 3 is a sectional view taken-on the line 3'-3 of Fig. 2;

Fig. .4 is a sectional elevation taken on-the line 4- 1 of Fig. 1;

Fig. 5 is a detail longitudinally sectional view onan enlargedIscale,partly".in elevation, of two opposed'electro-magnets and associated parts with a bobbin arranged between them forming component parts of .tlie

1923. Serial No. cam-19.

ing this portion of the machine set up to form a tubular fabric; 3 Fig. 8 is a front elevation, partly in section, of a commutator that is employed on the 3 -machine;

Fig. 9 is asectional view taken on the line Fig. 10 1s a diagrammatical view of the electrical connections of the machine.

The frame of the machine illustrated in the drawings is'provided with a base plate 2 and side frames at having their lower ends securedto the base plate and their upper ends rigidly connected by a tie-rod 6. The side frames 4; are provided with hubs 7 hav- 170 ing central apertures in which are secured by set screws 9' the outer ends of two tubular r.

supporting members 8 and 10, respectively,

which are arranged in axial alinement with their innerzends spaced a distance apart. 76

The illustrated machine is particularly adapted 'for use in covering wire. When the machine is used for this purpose-the wire is fed axially through the tubular supporting members 8 and 10 in the direction of the arrow shown in Fig. 3. The wire which is indicated at 12 is guided in the tubular memher 8 by means of a guide sleeve 14 secured in the inner end of said member b meansof. a setscrew 16. The wire is guide in the tubular member 10 by means of a guide sleeve 18 that is secured in the inner end of the member by means of a set screw 20. The guide sleeves 14 and 18 project toward each other beyond the inner ends of the tubular members 8 and v0 1 10.and their inner ends are positioned in close proximity and are bevelled outwardly. When --the machine is set up as shown, it is adapted to weave aafcovering on the wire consistin of twenty-f r-longitudinalstrands 21, and our 5 cross strands 23, the latter bein l'aid or woven simultaneously. The longitudinal strands 21 are drawn from bobbins22 which are arranged circumferentially about the inner ends of the guide sleeves Hand 18 with their 10 axes.parallel:to the axis of the ide'sleeves and equally spaced apart, and t e four cross strands 23 are drawn fromcops 24 through 1 thread guides 26which are so positioned as 50 m h e, the Outer Ortioll 0118 f the le0:\ to guide the stretches of the strands extende 104 tro-magnets being roken away;

Fig. 6 is a detail sectional view on an enlarged scale of a portion of the machine illustrated in Fig. 3

ing from the guides to the wire, ina common plane perpendicular to the axis ofsaid sleeves and adjacent" the inner end of theguide sleeve 18. Duringfthepperationof the ma- 55 Fig. 7 is a view similar to Fig.6 but show.- chine. the thread 26 are simultaneou y m carried concentrically about the. axis of 'said guide sleeves, andthe bobbins areshit'ted axiallyinoppositedirections-a.- distance ugrea-terthan their width in proper timed relation to each other and to the operationiof' the thread guides 26 to effect the wearing of the-covering. on" the wire, each bobbin. beingso supported as 'to'e'nable the cross strands to be carried acrosseither side thereof de-* pending upon the .position to which it is moved. The weaving of the strands on the wire takes place adjacent the inner end of the sleeve 18, this sleeve serving as acon-- denser for the strands.

The bobbins 22 are each mounted for rotation on and to slide from one to the other of heads 28 that are formed on pins 30 of brass or other non-magnetic material, the

- pins being arranged in axial alincment and with the inner ends ottheir heads 28 spaced a distance from opposite sides of the plane of the stretches of the strands extending fromthe guides 26 ,to the wire. Each bobbin is adapted to be thus shifted from one to the other of the heads 28 by means of two electromagnets 32 surrounding the .pins 30 and arranged at opposite 'sidesof-the bobbin. Each Y magnet 32 is provided with a central core. 34;

having itsouter end'reduc'ed' in diameter and secured in'an'apertnre in the end ofan arm 36.- andthe 'coil 37 of the magnet is held on the core 34: betvi'eenannular disks 38 of fibre 01" strands extending "other insulating material, the. inner disk 38 being arranged adjacent a flange 40 formed on the inner end. of the core, andthe outer disk'b'eing arranged adjacent the arm 36. The

pins 30 are mounted in axial apertures in the magnet cores 34; The flanges ofeach bobbin 22' are, each made in two concentric sections :arrang'ed one "within the other, the innersection 42 being formed integral with thecore "of the'hobbin a'nd lthisi'section and thecore being'made of magneticmaterial, and theouter section at being made of fibre or other non-magnetic material and being secured to the inner. section b means. of "screws 46.

With. this construction it will be apparent that whenvon'e of themagnetsot each pair .is

energized and other magnet .is de-energize ,the bobbin will be drawn toward the energizedmagnet .so as to bring it a distance to one-side .of .the lane of the stretches of omthe thread guides- 26 to the'wire, andvice versa. In order to m-- sure the immediate disengagement of the bob bin from 'a ma 'net: when the magnet is 'de-. "energized and tbe other magnet is energizedto maintainthe bobbin. under control at during its movementiroii one-to ftheother magnet, a sleeve 48 of-brass or other non-magnetic material is mounted to slide on 5 'each pin 30, the inner end'oflthe sleeve beingv ane of the inner en the associated head 28. The'sleeve 48 is urged substantiallyi'n the 'p' toward the end o f tliepin by-means of a spring SO-coiled about the pm and interposed between the ontercnd ()l-li-Q-$lti"\ and a shoulder 52 formed on the -hall (:f m me-'1 aperture of theassocia ted core 0 l the nmgnet.

this movement oifthe sleeve lasing limited by.-

the engagement of a stop shouideiniil thereon with tire, outer end of the "head 28; With this construction when one of the magnets is en- 'ergized, thebobbin on being. pulled toward the magnet'will engageand {in-cu hack the sleeve 48 associated \Vlth t-ll? magnet llllill theflange of the sleere'is brought against the end of the core otthe '1nagn ct,-and when this magnet is (lo-energized and the U Li-KX' magnet is energized, the spring which was placed under tension by this retracting movement of'the sleeve will be pern'iittcd to act immediat'ely to force the bobbin away from the dcenergized magnet and in the direction of pull mediately wheuthe' latter magnet is de-eucrgized. I

-- The constructionof the outer section 22 0f the. flanges i of each bobbin 10f non-magnetic material reduces the danger of the magnetic flux'develo mg in one bobbin from intcrfere with t 1e other bobbins. Toenable the o pins 3Q. are adapted to be retracted against the tension of the springs 50, a knob 56 being securedto the outer end of each pin which byengagement with the outer end of the magnet core,-,lirnits the inward movement'gif the pin. J Thebracket arms 36 on. which the left-hand series, of magnets are mounted are formed on a, bracket member 58 which isse'cured' on the inner end of the tubular member 8 by means of a set screw 60screw-threaded. through an indly projecting-1 hub on them'ember, the. arms 36 projecting radially. The bracket -arms 36' on which 'the right-hand series of agnets arefmounted arefor'med on a bracket of the. tubular-"supporting member. 10 by means ofa set screw 64 which is screw threaded through an aperture inran inwardly-projecting hub 66 for'med'on' said member..

strand guides 26-are formed onthe ends of horizontal portions 68 of arms 70'tl at pro ject radially from and are secured at their lower ends to'a flange 72 -formed'onthe inner bins to be easily removed and replaced the member 62 which is secured on the inner end end of a rotatin'g carrierrsleeve' Z4 which ismounted for rotation on the tubular member8- between the left-handjsidei frame 41andthe bracket member 58, the-arms equally read cops 24 are mounted on suitable brackets 76 secured to the flange 72, the strands passing from the cops through eyelets 78 secured to, the upper end of the vertical portion of the carrier arms 68 and over the horizontal portion of the'arms" to the thread guides. The

carrier sleeve 7 4 is adapted to be driven through pulleys 80 mounted thereon.

The operation of the magnets is controlled by a commutatorwlxich is provided with a drum 82 carried by a'horizontal' shaft 84 having its ends journaled in bearings in the side frames 4. The shaft 84 is driven from the carrier sleeve 74 by means of a sprocket chain 86 that passes over sprocket wheels 88 and 90 secured on the sleeve and shaft, respectively,

The commutator drum 82 is made up of six segments 92, the hubs of which are arranged end to end on a metallic sleeve 94 having a collar 96 secured on one endthereof by a set screw 97, and a clamping nut 98 screwthreaded on the other end thereof for clamping the hubs of the segments 92 in position on the sleeve. A commutator-ring 100 is also clamped on the sleeve 94 between the nut 98 and the right-hand end segment 92. The sleeve 94 is insulated from the shaft 84 by means of a sleeve 102 of insulatingmaterial secured to the shaft. The commutator is further provided with two sets of brushes 104 and 106 which are arranged diametrically opposite to each other, each se cut 92- being adapted to engage one brus of each set. Each brush 104 is pivotally and electrically connected at 108 to a metal strip 110 secured to a blockof insulating material 112 mounted on the base plate 2. The brushes are pressed toward the commutator drum by means of a spring 114 coiled about a screw 116 that extends through an enlarged aperture in the brush and is mounted in an aperture in the block 112, the spring being interposed between a nut 118 screw-threaded on the upper end of the screw and a washer 120 engaging the top surface of-the brush. Each brush 106 is pivotally and electrically connected at 122 with a metal strip 124 which is secured to a block of insulating material 126 mounted on the base plate 2. The brush 106 is urged toward the commutator drum by means of a spring 128 whichis coiled about a screw 130 mounted to slide through an aperture in the block 126 and extends loosely through an aperture in thebrush, the screw being provided with a head 132 that engages the under side of the brush and the spring 128 being interposed between a nut-134 screw-threaded on the upper end of the screw and a washer'136 engaging the block v126. I

Each brush 104 is electrically connected by a wire 138 in series with the coils 32 of a set of four equally spaced magnets of one series of magnets (Fig. 10), and each brush 106 is similarly connectedby a wire 140 with the coils respectively.

formed on the bracket 150.

of a set of four equally spaced magnets'of the other series, so that the magnets of each pair are connected to the two brushes of a segment, The coils of all the magnets are connected in series through a battery 142, or other source of electric supply, with a brush 144 engaging the .,collector-ring 100, the brush 144 being'mounted similarly to the brushes 106. The commutator segments 92 are equally and progressively spaced about the shaft 84, as shown in Figs. 8 and 9 and are of suitable length so that as a brush 104 is engaged by one of them it is carried out of contact with its other brush 106.

With this construction it will be apparent that the pairs of electromagnets will be correspondingly operated in sets of four, a corresponding magnet of each pair being energized while the other magnet is de-energized, and that the pairs of magnets between each such set of four will be successively operated correspondingly. As the commutator shaft makes two revolutions to one of the carrier sleeves 74 it will be apparent that the four equall spaced thread guides 26 will operate in suc timed relation to the operation of the magnets, and hence to the shifting movements-of the bobbins that during their rotation they will carrytheir'strands simultaneously across the same sides of four bobbins, and then simultaneously across the opposite sidesof the succeeding bobbins and so on,

- the four strands being thus simultaneously laid or interwoven with the bobbin strands so as to effect a plain circular weave as the supporting member. 8 and out through the tubular member, so asv not to interfere w1th the rotating strand carrying arms and the wirin for the ri' ht-hand series of magnets may %e carried own to thecommutator in any suitable manner.

It will be apparent that the closeness of the weave may be varied by merely varying the speed of the feeding movement .of the wire or fabric. To this end a feed mechanism is provided that has provision for ad]ustnent by the operator to vary the speed there- 0 The feed mechanism comprises a feed wheel 146 over which the wire and its covering pass. The feed wheel is mounted on a shaft 148 which is journaled to rotate in suitable bearings formed on a'bracket 150 secured by set screws 152 to the hub on the right-hand side frame 4. One face of the feed wheel 146 is inthe form of a friction disk and isengaged by a friction driving pinion 154 secured by a set screw 156 on a shaft 158 having its ends journaled in suitable bearin s in a yoke he shaft 158 is driven by a ratchet wheel 160 secured on one end thereof whichis engaged by an operating pawl 162 mounted 'on an arm 164 having one end pivotally mounted on the shaft 158 and itsother end connected by a link 166 witha crank disk 168 secured on the right-hand end mittent movement imparted to the feed wheel 146 by the ratchet wheel 160 is preferablein some cases to. a more continuous feed.

:It wili be apparent-that the machine may be used in covering wire of different sizes by merelyemploying guide sleeves l4 and 18 of the proper sizes.

When it is desired-to weave a tubular fabric without weaving it on a wire. a forming mandrel 170 may be used which IS provided with a tapering end 172 extending into the inner end of the guide sleeve 18,the tool being held in a tool-holder in the form of a sleeve 174 which is secured in the inner end of the I tubular member 8 by means of the set screw 16, the inner end of the tool-holder being bevelled outwardly the same as the end of the guide sleeve 14. When the mandrel 17 0 is used the fabric is woven about the tapering end 172 of the mandrel adjacent the end of the guide sleeve or condenser 18, and as it is woven it slips'oif of the end of the tool as the fabric is fed, the feeding of the fabric being accomplished by the feed wheel 146.

It has been found that it is only necessary to draw the bobbin strands through the guiding member or condenser 18 to the feeding device, and insert the ends of the longitudinal strands into the end of the condenser, in order for the weaving operation toproperly take place. when the machine is started.

While the features described above are Well adapted for usein a wire covering machine or circular loom, it is to be understood that, except as defined in the claims, certain features of the invention are not limited to a machine of this character as they may be employed in looms of various types and in braiding machines.

What I claim is A I 1. A machine for use in the manufacture of textile fabrics having, in combination, a pair of electro-magnets arranged end to end and spaced apart, guide pins of non-magnetic material pro ecting from the inner ends of said magnetsand having their. inner ends spaced apart, and a strand carrier of magnetic mate-- rial capable of sliding upon and from one to the other of said ins a distance greater than the width thereo 2. A- machine for use in the manufacture of textile fabricshaving,.incombination, a

bobbin, means for supporting the bobbin comprislng two members arranged end to end and spaced. apart upon which the bobbinis adapted to rotate and to be shifted axially in spaced apart, guiding members of non-mag -net1o material PIOJQCtlHg from the inner ends of said magnets arranged in axial alinement and having their inner ends spaced apart, a

bobbin in part constructed of'magnetic-material capable of sliding uponand from one to the other of said guiding members a distance greater than its width, one of said guiding members being adapted to be retracted to permit removal of the bobbin.

4. A machine for use in the manufacture of textile fabrics having, incombination, a pair of electro-magnets arranged end to end and spaced apart, guide pins of non-magnetic material projecting from the inner ends of said magnets arranged in axial alinement and having theirinner ends spaced apart, a bobbin in part constructed of magnetic material capable of sliding upon and from one to the other of said pins a distance greater than its width, sleeves of non-magnetic material mounted to slide on said pins, respectively, and springs for urging s'aid sleeves toward each other, each sleeve tending to slide the bobbin in a direction away from the magnet associated with the sleeve when said magnet is deenergized.

5. A machine for use in the immufacture of textile fabrics having, in combination, a bobbin mounted for axial movement in opposite directions, means comprising two electromagnets arranged at opposite sides of said bobbin for alternately moving the bobbin axially in opposite directions, respectively, a distance greater than the width of the bobbin, and a mechanically operated device associated with each magnet acting to slide the bobbin in a direction away from said magnet when said magnet is de-energized.

6. A machine for use in the manufacture of textile fabrics having, in combination, a plurality of flanged bobbins arranged in proximity to each other with their axes parallel, each having its central portion made of magnetic'n'iaterial and the outer peripheral 'portionof its flanges of non-magnetic material, an'd means'associated with each bobbin comprising two electro-magnets arranged at opposite sides of the'bobbin for alternately condenser, a series of bobbins each having a strand wound thereon arrangedcircumferentially about said condenser with their axes parallel with the axis of said condenser, a

series of pairs of guiding members, the members of each pair being arranged endto end and spaced apart and each pair'arranged tosupport a=bobbin and to enable the bobbin to be slid from one to. the other a distance greater than itswidth, meansfor drawing a strand from each of said bobbins and throu h said condenser, a strand carrier rotatable 01rcumferentially about'said condenser outside of said bobbins for guiding a strand to said. condenser, means for thus-rotating said carrier, and means comprising electro-magnets arranged at opposite sides of each bobbin foraltiernately sliding said bobbins successively in opposite directions a distance greater than their width so as to enable the strand carried by-the strand carrier to be passed successively I 4 between the ends of said guiding members of each pair a distance greater than i each pair and alternately across opposite sides of said bobbins. I l I 8. A machine for use in the manufacture of textiles fabriw having,- in combination, a

tubular member constituting .a strand condenser, a series of pairs of electro-magnets arranged circumferentially about one end of said tubular member, the magnets of each pair being arranged in axial alinement and spaced apart and having their cores arranged parallel with said tubular member, a frame surrounding said tubular: member having a series of radially projectingarms with each arm supporting one. magnet of each pair, a

second frame'spaced from said end of said tubular member and having'ja; series of radi-- ally projecting arms with ing the other magnet of j v of magnetic material m ted to; slide in opposite directions between the ma ets of width SO as to' enable a strand toi'be passed across opposite sides of thebobbimmeans for drawing a strand'from each of the bobbins and through said'end of said tubular member, a plurallty of strand carriers '.for guiding strands to said end of said tubular, member mounted for rotation about the axis of said arm supporttubular member and outsideofs'aid bobbins pair, a bobbin ing, arranged end to end and cores arranged parallel with the axis of said tubular members, two frames surrounding said tubular members, respectively, and each having a series ofradially projecting arms,

, each arm supporting one of the magnets of each pair, a bobbin mounted between the magnets of each pair and adapted to be moved axially in opposite directions a distance greater than its width upon themagnets associated therewith being energized, re-

spectively, so as to enable a strand to be 1 passedacross opposite sides of the bobbin, a carrier rotatably mountedfor rotation about one of said tubular members, means on said carrier for supporting a plurality of strand cops.a plurality of guiding members car- I ried by said carrier for guiding strands from said cop s in the plane midwa between the limits of movement of said bo bins and into the end of oneof said tubular members, means ,for drawing thread from said bobbins and through said end of said tubular member, and controllable means for relatively energizing said magnets and for rotating said carrier in timed relation.

10. A machine for use in the manufacture of textile fabrics having, in combination, a tubular member constituting .a strand condenser, a series of pairs of electro-magnets arranged about the condenser with their axes parallel with the axis of the condenser and with the magnets of each pair arranged end to end and spaced apart, means for supporting a bobbin between the magnets of each pairin such a manner as to enable the bobbin to be axially shifted a distance greater than its width so as to enable a strand to be passed across 0 posite sides of the bobbin, shifting of t e bobbin in opposite directions being, effected by means of the magnets, respectively, means for drawing strands from the jbobbins and throu h the condenser, a

strand'carrier for guidmg a strand to the condenser and rotatable about the condenser outside of the bobbins so as to cause the strand to be varied in a plane midway between the limits of movement of the bobbins, and controllable means for relatively ener- -gizing the magnets and rotating'said car rier in timed relation. I h

11. A machine for covering wire having, 1n comblnation, two tubular members arranged in axial alinement with their inner ends spaced apart, means for feeding. a wire through said tubular members, supporting frames surrounding each of said tubularmembers,"and' each having'a series of radially extending arms with the arms of the two series oppositely arranged, respectively, an electromagnet mounted on eachof said arms, the magnets on the two supporting members heso as to provide a series of pairs .of magnets,a guiding member on the inner end of each magnet, the guiding members of each ced apart pair of magnets bein arranged end to end and spaced apart, a ho bin arranged between the magnets of each pair and-mounted to slide onthe guiding members associated with the magnets from one to the other a distance p for relatively ,energizmg the magnets. and for i greater than its width, a carrier rotatably mounted for rotation about one of said tubular members, means thereon for supporting a plurality of thread cops, means comprising arms projecting from said carrier for guidin thread frbm the cops to said wire at-a omt between the ends of said tubular memrs, the stretches of the strands extending spaced apart, means for supporting abob bln between the magnets of each pair so as to enable the bobbin to be rotatedjandto be shifted axially in opposite directions a .dis-

tance greater than its width to enable a strand to be passed across opposite sides of the bobbln, means for drawing strandsfrom the bobfor laterally traversing a strand successivel /across thesides of the bobbins-in a'plane mid way. between the limits of the shifting movements of said bobbins, and controllable means operating said strand'tra'versing means in tlmed relation, i-

13. A machine for use in the manufacture of textile fabrics having, in combination, a

bobbin mounted for axial movement horizontally 1n opposite directions, and controllable means comprlsing two electro-magnets arranged at opposite sides of saidbobbin for movmg the bobbin in said directions.

14. -A machine for use, in the manufacture of textile fabrics having, in combination, two guide pins arranged horizontally in, axial alinement and'havmg their inner ends spaced pins, and means comprising electro-m ets I surrounding said pins for shifting the b0 bin from the arms to the wire being arran ed in. i

a ho

bins in the same general direction, and. means apart upon which t a distance apart, a' bobbin of greater widththan the distance between the ends'of said from one to the other of said pinsto positions at opposite sides of a plane extending- 'cen trally'betw'een the ends ofsa'id pins.

15; A circular loomhaving, in combina-- tion, a bobbin mounted for axial movement in opposite directions, means comprising an elect-ro-magnet arranged at one sideof-said bobbin for moving the bobbin axially in. one

direction a distance'greater than its width,

and a mechanically operated device associated with said magnet and acting to shift a .1

the bobbin in the opposite direction when said magnet isdeenergized.

movement in opposite directions, nieanscomprisin electro-magnets acting directly on 16. A circular loom having, in combinetion, a rotatable bobbin mounted for axlal the b0 bin for shifting-it axially in opposite directions, and mechanically operated devices tending to shift the bobbin to a position sub- I stantially midway between its limits of movement' when said electro-magnets are deenergized. e

17. A circular-loom having-, nycombina tion, a" rotatable bobbin mounted for axial 'movement in oppositedirectlons, means comrising electro-ina'gnets acting directly on the hobbin for shifting it axially in 0ppos1te d1- rectio'ns,-and mechanically operated devlces each coo er'atin with one of 'said'magnets to shift t e bobbln tiln ma' et is energize Us I 1 3 A circular loom :havin'g, in combinaone direction when said tion, a rotatable bobbin means for positively guiding and supporti the bobbin compris ing members arran (1 end to end and spaced it bobbin is ada tedto be shifted axially from one to. the 0 er a distance greater than its width', each of said .members alone being adapted to supportf'said bobbin for rotary movement, and control- 7 lablemeans for thus shifting. the bobbin comprising electro-magnets arranged to act directly on the sides, respectivel of the bqbbm.

19. A machine'for use t e manufacture of textile fabrics having, 111 combination, a

bobbin mounted for movement in opposite.

directions, resilient means tending to move the bobbin in one direction, and'means comrising an electro-m et for moving the bobin in the opposite lrection against the action of said resilient means.

CHARLES G. BAUER.

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