US1704888A - Assianob tq the wire - Google Patents

Description

Original Filed Jan. 15, 1927 4 Sheets-Sheet 1 I I I'M IN VENTOR BY m,

A ORNEY March 12, 1929.

A. FREDERICKSON BRAIDING AND WRAPPING MACHINE Original Filed Jan. 15, 1927 4 Sheets-Sheet ()zz: 2km mm ATTORNEY March 12, 1929- o. A. FREDERICKSON BRAIDING AND WRAPPING MACHINE Origihal Filed Jan. 15, 1927 4 Sheets-Sheet 66% Q. yr' twwam r ATTORNEY Marh 1929- o. A. FREDERICKSON 1,704,888

BRAIDING AND WRAPPING MACHINE Original Filed Jan. 15, 1927 4 SheetS=She at 4 ATTORNEY Y Patented Mar. 1 2, 1929 OTTO A. snnn nnrcnson, 'QFWETHERSFIELD, CONNECTICUT, Assmnoa ro HE wmn- MOLDZCOMPAN'Y, or rmarron'n, connncrrcnr, A CORPORATION OF connnorrour.

BRAIIDING Ann wnarr'ine MACHINE.

Application 'filed January 15,1927, Serial No.;161,303. Renewed September 11, 1928.

' This invention relates to improvements in the construction of a braiding machine and also ,to a combined braiding and wrapping machine.

In certain fields of manufacture, such forexample, as in the production of insulated electrical conductor Wires, it is desirable'to form a braid about the conductor wire and to place over this braid a protecting wrapper formed of strands Wound about the braid.

- Heretofore this braid has been formed about the .wire by abraiding machine and then the protecting wrapper-has been wound about the braid in a separate and independent operation and upon a separate machine.

One important feature of the present invention therefore resides in the novel construction whereby the braid and protecting wrapper above mentioned may be placed about a conductor wire in a single machine and at the same t me.

Another important feature of the invention resides in the-use of thread deflectors v having thread guidlng surfaces which are provided with a special finish that serves to reduce to a minimum the friction between the braiding strands and the' surfaces they engage during the braiding operation.

, Various types of deflectors have been used heretofore upon braiding machines butthey have not been satisfactory on ihigh speed machines, because the rapid movement of the stretched strands along the guiding surfaces has exerted an excessive tension or drag, upon the strands which causes them to break frequently, so that has been impossible to braid;

lowgrade yarn upon the deflector, type of braiding machine unless such TflttClllDB. has been operated at relatively low speed.

7 'In the ordinary type of braidingmachine V the outer yarn-carriers are rotated in one carrier, but the rapid action ofthe deflectors on the stretched strands exerts a dragging pull on the strands that tends to break them.

jThe deflectors and guiding surfaces employed heretofore have usually been formedv of steel or brass and the strand engaging edges of these deflectors have been highly edges may be polished; vfurthermore, any tendency of the guides to corrode or rust due to the presence of moisture or gases in the air Wlll increase their dragging actionupon the strands. Y

It is found that the difficulties experienced heretofore in the use of deflectors upon braiding machines is entirely overcome by forming the strand'engaging edges of the deflectors of nickel or of a nickel alloy'which is given ahigh polish. The nickel finish not only takes a high polish'which will not rust or corrode, but it is entirely free from any aflinity for the strands, and as a result the strands even. when advanced at high speed will slide smoothly along the deflectors without being subjected to the objectionable drag experienced heretofore. 1

This new finish for the deflectors has f proved extremely valuable in practice because through-its use the deflector type of tion resides in a novel construction for holding the ,inner'carriers in place so that the inner ends of'the carriers are prevented from lagging behind or otherwise getting out of their proper position. I

Still another'feature of the invention resides in the constructionwhereby the upper portion of the pushed roll is housed to elude lint'and dust from the same,v

. Otherfeatures of the invention and novel combination-ofparts in addition to the above will be hereinafter described in connection with the accompanying drawings which illustrate good practical forms of the invention.

In the drawings i Fig. 1 is a perspective view of a combined braiding and w apping machine constructed in accordance wlth the present invention;

Fig. 2 on an enlarged scale 18 a vertical sectional view through the machine of Fig. 1';

v Fig. 3 is a side elevation of the braiding machine of Fig. 1 but provided with modified features;

Fig. 4: on an enlarged scale is a perspective view of the upper braid guide of Fig. 1

novel strand deflector Fig. 5 isa sectional perspective view of a Fig. 6. is a sectional perspective view of one of the strand slots and associate guides of the outer drum; ;Fi-g; 7 is an enlarged perspective view of portion of the machine of Fig. 1;

Fig. 8 is a perspective view of one of the inner carriers; and

F ig. 9 is a vertical sectional view through portion of the carrier of Fig. 8.

In the embodiment of the invention illustrated the wrapping feature of the present invention has been associated with a braiding machine in an'extremely sin'iple'manner due to the fact that the type of braiding machine shown lends itselfadmirably to this combined operation. It should be understood however that the wrapping feature of the presentinvention may be associated with other types of braiding machines than that shown and de- 1 scribed.

In the embodiment of the invention illustrated the bra ding machine shown is pro vided. with an annular table or support 10 which is supported the desired distance from the floor by the legs 11. The table 10 is provided with a central'hub 12 which is connected to the tableby the radially extending spokes or arms 13. Within the hub 12 is mounted a fixed hollow shaft 14 which maybe rigidly secured within the hub by the bolt 15, and this shaft forms the central axis about which the operating parts of the braiding machine revolve. I 7

Within the annular frame 10 is rotatably mounted the outer revolving drum 16 which is provided with the hub portion '17 that is secured to the outer portion of the drum by the horizontally extending flange portion 18. Within the hub 17 is mounted a hollow rotating shaft 19 which is ournaled upon the fixed shaft 14 and to the upper end of the rotating shaft 19 is rigidly secured the driving frame.

20 adapted to drive the inner yarn carriers.

A driving gear 21 issecured to the under face of the flange portion 18 of the outer revolving drum,and a similar driving gear 22 is rig idly secured to the rotating shaft 19. The outer revolving drum 16 and driving frame 20 are rotated in opposite directions by the pin- 1011'23 which meshes with the upper and lower gears 21 and 22 and this pinion is secured to and is driven by the shaft 24 that is rotatably supported by theframe 10. The outer revolving drum 16 is provide with the usual thread receiving slots 25 through which the strands of yarns from the outer carriers may pass to the braiding point, and at the upper endof the outer revolving drum is mounted the top 'ring 26 which serves to support the outer yarn carriers. In the constructlon shown these carriers consist of upstanding brackets 27 which are bolted to thetop ring andeach of these carriers has a shaft receiving sooket "adapted to receive a the yarn masses.. .At the inner face'of the outer revolving drum 16 is preferably provided the grooved-runway-82adapted to receive a projection provided at the outer'end of each inner yarn carrier.

The inner yarn carriers may have the general construction best shown in Fig. 8 where in it will be seen that this carrierhas the form of a hollow frame adapted to receive the inner yarn mass 33, and in the construction shown the inner yarn carrier 1s p'rovided at its outer end with the spaced shoes 34' adapted to slide in the runway32 and support the out er end of the inner yarn carrier; At the'opposite end of each inner yarn carrier is pro 7 vided a roller 35 which rests upon the annular track or ring 36 and this ring is support-' ed by a fixed annular frame 87 that'isrigidly secured tothe upper end of the fixed post 14. The inner carriers are supported at their opposite ends by the means just described so that these carriers may travel freely in an annular, path about the braidingpoint, and in'the.

construction shown cooperating disks are employed to drive'tho inner carriers. To this end each inner carrier is provided with a pushed disk 38 which is rotatably mounted by a pin 39 within anopening formed near the outer end of the frame of the inner carrier;

and each disk 38 is pushedforward by a push- I I ing wheel 40 whichjwheel is rigidly secured to a shaft 41 journaled in a bearing provided upon the driving frame 20, the arrangement being such that the pushing wheel 40 engages the lower portion of the pushed roller '38 and push t-helatter and. its nner carrier v serves to forward;

It is desirable to positively rotate the coop erating wheels or rollers 38*and 40 to fa'oili tate the passage of the outer strand of yarn between these two wheels, and to this end the shaft 41 is provided with a driving pinion 42which pinion meshes with the teeth 43 formed at the under face of the fixed frame or disk 37, the arrangement being such'that rotation of the driving frame 20 willadvance the pushing wheels 40 about the central axis of the bra1dmgmach1ne and the engagement of the cooperating gears42 and 43 will positlvely rotate the pushing wheel 40.

It isnecessary to traverse the strands of yarn 44 which are led from the outer yarn masses29 to the braiding points, and in the' guide ring 31 through slotsdtitormed in the top ring 26 and each strand is then passed through the eye Iota take-up spring 47 which serves to take up slack in the thread. From 5 thespring llthe strand is led to a thread guide d8 which is secured to the outer drum 16 and the thread receiving slotofeach of'the thread guides 48 is so positioned that when the thread is stretched. taut and extends in a straight line from this guide to the braiding point, thetaut thread will lie below the nose of the thread deflector 49 provided upon each inner yarn. carrier. As a result of the arrangement just described, each deflector 49 v 1 5 tends to force the outer strand of yarn doWnwardly so that the inner carrier will pass over such strand. lniorder to cause these outer strands of yarnto pass under seine of the inner yarn carriers and over others to produce the braid 50', the fixed deflectors 15 above mentioned are, provided, The arrangement is such that as the outer strands of yarn are advanced around the bra ding point by the outer revolving drum these strands will periodically engage the fixed; deflectors 45, which de- Electors are so shaped that they will force the thread upwardly within the drum slot 25 to elevate sucl1 thread-above the nose of a deflector 49, so that the elevated threads will pass over the inner carriers while the threads that are not elevatedby the deflectors will pass undertheinner carrier's.

The operatingmechanism so far described may be driven by a'b'elt 51 which engages a I pulley 52 that is rotatably mounted upon the main shalitQel and the starting and stopping of the braiding machine may be controlled 7 by operating the hand lever 53 which is pivoted. intermediate its ends and which serv .s to operate a clutch element 54that is keyed to the shaft 24 for sliding movement towardsand tromthe driving pulley 52. The "arrangement is such that when the clutch element 54 is forced into engagement with the a; rotating pulley 52 thedriving shaft 24 will be rotated. lVhen it is desired to stop'the braiding 7 machine this may be effected promptlyby shifting the lever 53 so'that it will move the clutch element 54 out of engage- 510 inent with the wheel 52 and at the same time will force the braking element 55 into frictional engagement with the fixed co-operating element 56. The lever 58 is normally held in its machine stopping position by a coiled 5 5,zspring 5 7 and whenthe leveris moved to the starting position it, is held in such position by a latch 58 which is controlled by a solenoid 59 the arrangement being such that when the I solenoid is actuated by a source of electrical 60 energy itwill retract the latch 58 to thereby.

release the lever 53 so that the same will be actuated by the spring 5? to stopthe braiding machine. p Y

The braidingmachine illustrated in the 6 drawing is shown as supplied with a conr in position to engage the spaced heads of the reel 61. The wire 60 with the braid formed thereupon, is led upwardly from the braiding point about a take-up drum 6% which is rotat'ed at the desired speed by the chain and the series of gears 66, 67, 68,one of which may be changed to vary therate of speed. 'The group of gears just mentioned is driven by the vertically extending shaft 69 (see Fig. 3) and this shaft is driven from the bevel gear 22 by a sprocket chain 70 which chain engages the sprocket 71 secured to the lower portion of the gear 22.

The braided cable or conductor wire upon leaving the take-up drum 64, in the construction shown, passes through a guide pipe 7 2, the'discharge end of which pipe is bent downwardly to direct the cable towards the takeup reel '73. The spaced flanges of this reel rest upon and are driven by the rollers 74 rotatably supported by the frame 75. These rollers are driven by a belt 76 which passes around the pulleys 77 and 78. A traversing arm 7 9 is provided for the purpose of laying the cable properly upon the take up reel 73, and this arm is supported by and projects downwardly from-a sleeve 80 which is rotata-bly mounted uponthe revolving shaft 81.

. The general construction'so tar described have associated therewith fthe wrapping means which will now be described. Should it be desirable to place upon a core or conduc-' tor wire a braided covering and also a protecting wrapper, this may be readily done in accordance with the present invention by employing the mechanism so far described to 1 produce the braid 50 about the insulated wire 60. This is done by leading the outer strands of yarn 4 1 and the inner strands 82 inwardly to the braiding point formed at the lower end of the braiding guide or, die 83 which guide,

in accordance with the present invention, is supported so that it Wlll rotate with the outer revolving drum 16, and in the construction shown the guide 83 is supported by a bar 84 which extendsacross the braiding machine and has its opposite ends secured by bolts 85 to the top ring 26. A short distance above the braiding guide 83 is supported a second guide or die 86 and this second guide'or die may be rotated or held in a fixed position as desired.v In the construction. shown in Figs. 1 and 2 theupper die, 86 is supported by the posts 87 which extend upwardly from the transversely extending bar 84 and the die 86 is secured within an opening formed in the bar 88 that is bolted to the upper ends of the posts 87. As a resuitof the supporting means just described for the upper die the latter will necessarily rotate with the lower guide tatably supported by an arm 89 which projects downwardly from the frame orcolumn 90 provided to support the take-up mechanism above described. r

V In order to wrap the protecting strands about the braided cable it-is merely necessary to lead the strands'from some of the yarn masses supported by the revolving drum 16 directly the upper die 86 instead of leadingthese strands through the braiding machine to the braiding point. This may be done by leading the strands 91 from some of the yarn masses supported by the brackets 27 upwardly over the guide ring 31 and to the wrapping die 86., as will be apparent from Figsl and 2. The wrapping strands 91 are shown as being larger in diameter than the strands employed to form the braid. lt'will be understood that the rotative movement scribed in order to produce upon the same both the braiding and wrapping operations desired. The reason it is necessary to rotate the lower braiding guide or die 83 is because if a stationary support were prov1ded to hold this die it would interfere with the strands being revolved about the cable to form the protecting wrapper.

In some cases it may be desirable to employ the entire-groupof outer yarn masses shown in Figs, 1 and 2 to producethe desired braid, in which case the additional yarn masses required to supply the wrapping strands 91 may be supported in a second tier above the group of outer yarn masses shown in Figs. 1 and 2, as indicated by 92in Fig. 3 wherein it will be seen that the outer yarn carriers 9:) are constructed to support two groups of yarn masses one above the other. When the upper guide or die 86 is rotated as in Figs. 1. and 2 it may be desirable to form guiding notches 94 at the-lower end of this die, as best shown in Fig. f as these notches will help to guide the strands 91 about the braided covering 50.

As previously pointed out the present invention relates not only to a combined braiding and wrapping machine but is directed also to important in'iprovements in the braidin'g machine. One of these improved fea-' tures resides in the construction whereby each inner yarn carrier is provided with guiding means for positively retaining the same in place so that the inner end of the carrier "is'pr'evented from lagging behind during the braiding operation. If ai braiding machine is to operate properly it is essential that the variousoperating parts he at all times maintained in theirproperposition, and difficulty has been experienced heretofore in preventing the inner ends of the inner carriers from lagging behind. Thislag= ging effect is entirely corrected in accorddownwardly from the top ring 26, the'ar-' rangement being such that the bearing surface 95 engages the outer surface-of the;

apron 96 at the opposite sides of the longitudinal axis of the mner yarn carrier with the result that the carrier is-positively held in place and its inner end is prevented from lagging.

Another desirable feature of the present invention resides in the constructionwhereby a housing is formed over the upper portion of the pushed roller 38 The block 95 may serve to form this protecting housing for the roller 38, as will be apparent from Figs. 8 and 9 wherein it will be seen that the block95 is provided with a recess adapted to receive the upper portion of the roller 38.

This block may be formed of fibre or other non-metallic material, and serves to prevent lint and dirt from lodging upon the roller 38. An extremely important feature of the present invention resides inthe construction of the fixed outer deflectors .45. Deflectors of this general type have been employed heretofore but they have not been found satisfactory in high speed machines because when a less the deflectors. The deflectors employed heretofore have been in most cases made of steel or brass, but there seems to be a slight aflinity between these metals and the strands of yarn,

with the result thatno matter how high a.

polish may be given to the deflector edges the threads will not slide with sufficient freedom along the edges of the deflector. Furtherdeflector edges will cause the threads to drag and break.

The disadvantages experienced heretofore in the use of fixed deflectors upon a braiding machine are entirely overcome, in accordance with the present invention, by giving the 105 braiding machine is operated athigh speed v guiding edges of the deflectors a nickel finish such as indicated by'N of Fig. 5. This may be done by nickel plating the edges of the deflectors-or by forming these edges of a nickel alloy; Ni ckelappears to be entirely free from any allinity for the braiding strands; furthermore it will not rust or corrode, and takes a high polish. The use of nickel in the finishing of the edges of the fixed deflectors has proved to be an extremely important feature of the present invention because this single changein the deflector type of braider has enabled the same to' be operated at a much greater speed than was possible heretofore. This is due to thefactthat the strands of yarn will slide alonga nickel finished edge with much greater freedom than along edges otherwise finished. It is desirable that not only the guiding edges of the deflectors 45 have this novel finish, but that thethread guiding strip 25 provided adjacent theslots 25 within the outer revolving drum be similarly finished by providing the guide slot of this strip with the'nickel' edge N, as, shown in Fig. 6,. It may be desirableto 'likewise finish the guidin 'edges of the deflector 49 ofthe inner yarn'carrier. V 7

Another feature of the presentxinvention resides in the construction of the electrical stop devices which are associated with the strands of yarn extending to the braiding point fromtheouter and inner yarn carrier's.

and which may also be associated with the strands of yarn 91 that are wrapped about the completedbraid. 'These electrical stop devices, as shown, are extremely simple in con struction, andeach stop'device 97 associated with a strand of yarn 44 of the outer'yarn carrier consists of a rocking lever pivotally secured to the outer. face of the outer revolving drum 16; by a' screw or the like 98. These rocking levers are so positioned that when a thread 44 whichnormally supports a. particular lever in approximately a horizontal posi f 7 tion, breaks, or'becomes too slack,'it will permit the thread -engaging end of the lever to rock downwardly under the influence of gravity and this will throw the opposite end of the lover upwardly into engagement with the top" ring 26 .to thereby complete an electrical circuit in a manner to be described; Thesame' electrical stopdevices 97 may beassociated' with the wrapping strands 9lby -providing anydesired lever97 with a link'99' such as shown in 7, wherein it will be seenthat one end of the link 99 is-engaged with-the hook-formedat.theheavy end of the lever,

while the upperfend of this link isprovided with an eye adapted-to receive-the thread 91.

An intermediate portion of said link is slidably mounted in a bushinglQO formed of porcelain or'other insulating material, and which is mounted inithe thread guideslot'tG formed in the top ring' The top 26 is insulated from the outer revolving drum-16,as will be 1 this ring apparent from Fig. 7, which shows the insulating material 101. i In order to stop the braiding machine when a-thread breaks or becomes too slack, the solenoid 59 above mentioned is included in an electrical circuit with a battery or other source of electrical energy 102. One side of this battery is grounded tothe main frame of the braiding machine by the conductor wire 103, while theopposite side of the battery is connected to a bracket 104 by the conductor Wire 105. The bracket 10% is insulated from the machine frame and is provided with a of'thetop ring and it is supported by a sliding plunger for mov-ement into and out of engagement with the ring. Since the ring 26 contact 106 adapted to engage the outer edge is insulated from the machine frame the elecrunway, and the con'tact'element 106 is there fore supported by the bracket 104 so that it may bemoved out of engagement with the ring and held in its inoperative position while is being moved to and from its op erativeposition.

' It is desirable that the supply of current to the braiding machinebe cut oil automatically when the starting lever is moved to its machine stopping position and this lever is therefore provided with a contact point 107" which serves to completethe circuit between] the wire 105 and the'braiding machine when the lever is moved to its operating position, and to break this circuit when the lever is released. The braiding machine may be provided with one or more push buttons 108 which may be actuated to excite the solenoid and thereby release the lever to stop the braiding m achine; The stop mechanism provided on each inner carrier to'stop the machine,

when'the braiding strand 82 breaks or becomes too slack, mayiconsist of the drop lever v 109,'best shown in Fig. 8,"and which is normally insulated from-the supporting frame of the inner carrier, and 1s electrlcally connected to'the contact brush 110 by the insu lated wire 111. The contact brush 11.0 engages theo'uter face of the downwardly extending aprons 96, the arrangement being such that the'current supplied 'to the upper ring'26 is not permitted to reach .the'frame "of the inner'yarn carrier aslong as the contact lever 109-is heldin its raised position, as shown in Fig. 8, but when this'lever is permitted to engage the contact pin 112 the electrical current will. pass from the lever 109 to the frame of the inner carrierand fromthis frame to a grounded portion of the braiding machine. If the sliding shoes of the inner carrier3et are formed of metal, the current will pass from these shoes to the outer revolving drum 16, but it these shoes are made 01' oil treated wood or other non-metallic substance, it will be necessary to provide a contact element such as 113 to complete the c1r-.

, cuit between the inner carrier and the outer The eflt'ect of this curved edge 114: is to hold this strand approximately a constant distance from the guide pin 115 as the same is unwound from the ends and intermediate portions of the yarn mass 33. i

, What is claimed is i i 1. In a combined braiding and wrapping machine, an outer revolving drum, outer yarn carriers mounted upon said drum to be 1'o-' tated thereby about the central axis of the;

machine, inneryarn carriers, means for trav ersing the inner yarn carriers and outer drum in opposite directions about the central axis.

.i of the machine, a braid guide supported at the braiding point to rotate with the outerrevolving drum, andaddit-ional yarn carriers mounted upon said drum and adapted to have the, strands extending therefrom wrapped about the braid they are carried bythe 1 drum about the braiding point.

2. In a-combined braiding and wrapping machine, two sets of yarn carriers, means for revolving the-carriersin opposite directions a about a braiding point to form the braid, and

additional yarn carriers mounted to travel wlth'one of sa d sets of yarn carriers and ar-' ranged to wrap strands about the completed braid.

3. In a combined braiding and'wrapping machine, two sets otyarn Carriersmeans for, revolving the carriers in ,opposite'directions about a braiding point to form the braid, a

braid guide supported at the braiding point to rotate with one set of carriers, and additional yarn carriers mounted to travel with one of said sets of carriers and arranged to wrap strands around thecoinplete d braid.

4.. In a combined braiding and Wrapping 1 machine, two-sets of yarn carriers, means for advancing the carriers in opposite directions to form the braid, means for drawing the completed braid upwardly from the braiding point, and additional yarn carriers mounted to travelwith one of said sets of yarn carriers and arranged to wrap strands about the completed braid above said braiding point. T

V 5. I11 a combined braiding and wrapping machine, outer and inner yarn carriers, an

outer revolving drum for supporting the I outer yarn carriers, means for revolving the inner carriers and saidldrum in opposite di rections to form the braid, and additional yarn carriers mounted upon said drum to rotate therewith and arranged about the completed braid.

to wrap strands G. .In a combinedbraiding and wrapping machine, out-er and'inner yarn carriers, an."

outer revolving drum for supporting the outer yarn carriers, means for revolving the inner carriers and said drum to form the braid, a braid guide supported at the braid ing point by said drum to rotate therewith, and additional yarn carriers'mounted upon said drum to rotate therewit-hand arranged to wrap strands about the completed braid above said guide.

7. In a combined braiding and wrapping 9O machine, outer and inner yarn carriers, an outer revolving drum for supporting the outer yarn carriers, means for revolving the inner carriers andsaid drum to form the braid, a braid guide supported at the braidingpoint, means for guiding the strands from some of said outer carriersito the braiding point to form the braid, and means for guiding the strands from the remaining outer car riers to the braid above said'guide to wrap. the: strands about the completed braid.

8. In a combined braiding and wrapping machine, two sets of yarn carriers,.me'ans for advancing the carriers inopposite directionsto form the braid, a braid guide supported at the braiding point, a se'cond'guide supported in spaced relation to the first, means for drawing the completed .braid through the two guides, andmeans for wrapping strands guide to the other. 3'

9. In a combined braiding and wrapping about the braid as the latter nassesfrom one machine, two sets of yarn carriers, means for advancing the carriers in opposite directions to 'form the braid, a braid guide supported at the braiding point, a second guide'supported in spaced relationzto thefirsflfimeans'for rotating one-of said guides, means for draw ing the completed braidthrough the two guides,;and-Imeans for Wrapping strands aboutthe braid'as the latter passes from" one guideto the other.-v r

a 10. In acombinedbraiding and strands about the completed braid, means'for pp machine, two sets of yarn carriers, means for advancing the carriers to form the braid, a braid-guide supported at the'brai'ding point,"

'additional yarn carriers arranged to 'wrap rotating said additional carriers, and means i for rotating said 'guidewith the additional carriers.

11.. In a combined braiding and wrapping machine, two sets of yarn carriers, means for advancing thecarriers to form the braid, a

- braid guide supported at the braiding point, a second guide supported in spacedrelation to the. first, means for drawing the completed braid through the two guides, means for wrapping strands about the braid as thelatter passes from one guide to the other, and means for rotating both guides.

12. In acombincd braiding and wrapping machine, two sets of yarn carriers, means for advancing the'carriers in opposite directions to form the braid, a braid guide supported at the braiding point, a second braid guide sup ported inspaced relation to the. first, means for drawing the completed braid through the two guides, means for wrapping strands about the braid as the latter passes from one guide to the other, and means for rotating said second braid guide.

13. In a combined braiding and wrappmg 7 machine, two sets of yarn carriers, means for advancing the carriers in opposite ClllOlIlOIlS to form the braid, a braid guide supported at the braiding point, a second braid guide supported inspaced relation to the first, means for drawing the completed braid through the two guides, and means for wrapping strands about the braid as the latter passes from one guide'to the other. V 14. In a combined braiding and wrapping machine, two sets of yarn carriers, means for advancing the carriers in opposite directions, additional yarn carriers, means for traversing said additionalccarriers to wrap strands about the completed braid, and stop means associated with the last mentioned yarn carriers to stop the machine if a strand breaks or becomes too slack.

15. In a combined braiding and wrapping machine, lnner and outer carriers, means for advancing the carriers to form the braid,

means for guiding the strands from some of the outer carriers to the braldmg point to form the braid, means for guiding the strands from the remaining outer carrier to wind the strands over the braid, and stop mechanism associated with both sets of outer carriers to stop the machine if' a. strand breaks or becomes too slack.

16. In a combined braiding and wrapping machine, inner and outer carriers, an outer revolving drum for supporting the outer carrier, means for rotating the outer drum and inner carriers in oppositedirections, a guide ring, mounted upon said drum to rotate therewith, means for guiding strands from some of the outer'carriers downwardly from the ring to thebraiding point to form the braid,

and means :for guiding strands from other outer carriers about the ring and to wrap the strands about the complete braid.

17. In combination with a braiding mabridge bar to rotate therewith and positioned to direct the braiding strands to the braiding point. V

18. In combination with a braiding Inaohine provided with inner and outer yarn car- 'ricrsand a revolving drum upon which the outer yarn carriers are mounted, a wrapping attachment for wrapping strands around the completed braid to form a. protecting covering thereupon, including a bridge bar-adapted to be secured to said drum to rotate therewith, a die mounted upon the bridge bar and supported thereby in position to. guide the" braidingstrands to the braiding point, and a second die mou'ntedupon the bridge bar and supported thereby in position to guide wrap-' ping strands about the completed braid.

In testimony whereof, I have signed my name to this specification.

OTTO A. FREDERIOKSON.

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