US1524772A - wright - Google Patents

Description

Feb. 3, 1925. 1,524,772

' P. WRIGHT WIRE DRAWING AND SWAGING MACHINE n Filed Ju1y 13, 1923 7 Sheets-Sheet l Feb. 3, 1925. 1,524,772

P. WRIGHT -WIRE DRAWING AND SWAGING MACHINE Filed July 13, 1923 '7 Sheets-Sheet 2 L Parr/5in Might Feb. 3, 1925.

P. WRIGHT WIRE DRAWING AND SWAGING MACHINE Filed July 13, 1923 '7 Sheets-Sheet 5 l @num/bola www Feb, 3, 1925.

' P. WRIGHT WIEDRAWING AND SWAGING MACHINE '7 Sheets-Sheet 4 Filed July 13, 1923 Feb, 3, 1925. 1,524,772

P. WRIGHT WIRE DRAWING AND SbWAGING MACHINE Filed July l5. 1923 '7 Sheets-Sheet 5 Feb 39 P. WRIGHT WIRE DRAWING AND swAGING MACHINE Firled July 13, 1923 '7 Sheets-Sheet 6 al m 31am/whom Pazin Wir/'ight Feb. 3, 1925.

P. WRIGHT WIRE DRAWING AND SWAGING MACHINE Filed July y15, 1923 7 Sheets-Sheet '7 .un mK Patented Fein 3, i925.

' UNITED STATES IPARVIN WRIGHT, OF CHICAGO, ILLINOIS.

WIRE DRAWING AND SWAGING MACHINE.

Application filed July 13, 1923.

To all ifi/m t may concern.:

Be it known that I, PARVIN 7i-rieur, a citizen of the United States, residing at Chicago, in the county of Cook and State of 5 Illinois, have invented certain new and use ful lmprovements in lVire Drawing and Swag-ing Machines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enalile others skilled in the art to which it appertains to make and use the same.

rlhis invention relates to machines for drawing wire from rods and swaging the drawn wire into predetermined forms while straightening` and cuttiiigI the same into predetermined lengths and depositing the cut wires into piles at the end of the machine all in a single operation. It has for its ob- `iect to improve the mechanisms and opera- 2O tions heretofore proposed, as well as to provide a machine which will be simple in construction and more etlicient in action than those heretofore known. v

l/V ith these and other objects in View, the

invention consists in the novel details of construction and combinations 0f parts more fully hereinafter disclosed and particularly pointed out in the claims.

lsteferringl to the accompanying` drawings forming a part of this specification in which like numerals designate like parts' in all the views:

Figures l and fl constitute a longitudinal, sectional elevation of a machine made in accordancc with this invention, as viewed. on the line l-l of `li`igures 2 and 2,

Figures 2 and 2 constitute a top plan viewio'li the parts shown in Figures l and P;

Figure 3 is a side elevational view partially in section of the gypsy head portion of the machine. illustrating` the initial bend- ,ingl of the wire around the pulling drum and the use of the gripping means;

lligure L,l is a sectional view taken on the line lr-Ll of Figure il, looking in the direction of the arrows;

Figure 5 is a sectional view of the parts shown in F igure trating the manual means for lowering the lower die roller;

Figures G and 7 are detailed sectional views illustratingthe reducingl dies;

of a portion 4l, and illusraising and Serial No. 651,256.

Figure 8 is a detailed view partially in section of the straighteningl rolls with the wire in position;

Figure 9 a sectional view taken on the line 9---9 of Figure 2a, showing the swaging and cutting dies and their associated parts;

Figure l0 is a sectional detailed vie-w taken on the line 10ml() of Figure 2, look ing in the. direction of the arrows;

lfigiire l1 is a sectional detailed view taken on the line ll-ll of Figure 2, looking in the direction of the arrows; and

Figure l2 is a detailed perspective view of the i'inished wire product swaged and cut to a predetermined length.

ln order that the precise invention may he the more clearly understood, it is said: As is well known, there is now a very considerable connnercial demand tor wires of a predetermined size cut into predetermined lengths of say from four to fifteen feet and havingdeformed ends, which are used for banding boxes and other packages under tension.

rilliat is to say, these said Wires are. cmployed in special machines which after the wires have been Wrapped around the box to be banded puts said wires under tension and twists parallelv bights of the wire together into a knot, after which the ends of the bights are cut olf and the box is elli'ectually sealedl as well protected from breakage during shipment.

These wires must be shipped to the users in the forni of straight lengths or rods of similar diameter, and in packages of a predetermined number, say two hundred and lifty.

At present, in order to form these straight wire lengths, having deformed ends, a number of operations are necessary to be carried out. That is to say, prior to this invention, the original wire has been drawn from the rod and made into coils at a wire mill, which we may call the lirst operation. The finished coils are then piled up, and are loaded into cars, which we may call the second operation. The loaded cars carry the linished coils to some distant plant where they are unloaded which we may call the third operation. rlhel unloaded coils are next passed through straightening machines, in order to get the kink or loo ture out of the wires, and they are then cut into predetermined lengths and prepared for resliipping which we may call the fourth operation.

According to this invention, on the other hand, the wire is made directly from the drum in thefdrawing. machine, by which the drawing of the wire is accoi'nplished with- ,out .producing an undue Y.amount of slack inthe wire, thus avoiding `the-breaking of ,the latter between'the reducing dies. Other features of the invention will appear in what follows, `but it might bevremarked that the niachmeis so constructedasrto permit nboth sidesthereof to be provided with drawing members, thus doubling the capacity the machine would have if only one side were used.

Referring to the drawings, 1 indicates any suitable framework, 2 amotor yprovided with a drive shaft 3, located centrally of the framework, and `provided with the Worms 4,66 and 7 respectively meshing V.into theV worin gears YS, `9, 10, and vl1 to which the s o-called gypsyliead. drums 12, 213, 1 4, and 1 5 are respectively connected by means ofthe shafts respectively numbered 16, 17, .18, and 19,-all of,whichvwillbe clear from Figures 1, 1u, 2 and 2a. The said . shafts 16, 17, 1 8, and 1 9 respectively lturn in bearings 20, 21, 22 and23 asbest shown Iin Figures 12 and 2?, and on the ends of said ,shafts opposite to those lof the gypsy drums mentioned are respectively attached Acompanion gypsy .p drums 24, 25,126 and 27, as vwill befclear from the drawings. The worms andgears/l Vand-8, iand 9, 6 and 10, and 7 and 11 are all of a different pitch, so-thatthe speed ofeach succeeding worm and gear increases over the speed ofthe preceding vworm and gear. 'lhat is, the

`worms -and gears 4 and 8 .will have the slowest speed, while the worms and gear `5 and.9 will havea speedof about double that-of 4 and 8. The worm and gear 6 and 19 will have va speed ofabout` double `that of and 9,and the speed ofIthe-worm-and gear 7 and 11 willbe about twice the :speed of the worm and Vgear 6 and 10. As a consequence of these successive increases in speedtheshafts 16, 17,18 and 19 willhave Y a successively greater -speed andthe pairs ofv gypsy drums .12, 24, 13 and 2.5, 14 and 26, and `1,5A and 27 will yhave successively greater speeds. Of course, the actual speeds that are employed willfdepend lupon the particular wire that it is desired to produce, but the above ratios will give an approximate idea of. the speeds that are to be employed in this machine. 'lhe rod io be formed into wire is indicated by the numeral 34 and it passes between successiveppairs of reducing dies at each gypsy head and around each gypsy head or drinn, as will presently be disclosed.

These said roller dies of course increase the length of the rod, and the increased travel of each succeeding gypsy head or drumsuchas 12 and 13, and 14, etc., partly compensates for this said increase in length. But it is not necessary that the speed of the drums shouldabsolutely compensate forthe lengthening ofithe wire, because each gypsy head Vor drum automatically regulates the speed oftravel of the wire in such a inanner as will compensate for any differences in dength, as will be more fully explained hereinafter. As roller dies reduce the rods much easier .and with considerable less power than block dies, up to the finished operation, I provide a suliicient number ol .roller dies to bringthe wire to the approxi mate diameter desired, and then pass the almost finished wire through one or more blockfdies to reduce it to its final diameter.

Referring more particularly to Figure 3, the support-ing frame 1 is provided with a bracket or support 29 on which is pivoted as at 30 the; lever like plate 31 provided with the adjusting screw 32 controlled by the spring This plate 31 is provided with a plurality-of vertically disposed extensions 39 in which are mounted the shafts 35 and 36. The shaft 35 is provided with Aan eccentric 37 on which is mounted the lower roller die or roll 44, and on theshaft 36 is mounted the upper roller die or roll 43. The handle is rigid with the shaft 35, and therefore is capablecf swinging the eccentric 87 and the roller dieor roll 44 laround the center of shaft 35, while the adjusting screw 32 enables one to still further adjust the space between the two dies 43 and 44 by bodily moving said shaft 35 and eccentric 37. Since the rollerdies like the gypsy heads and other mechanism are duplicated on cach side of the machine, the saine reference numerals are apolied to like parts on both sides of the mac iine. .l`herefore, referring tolffigure `4, which shows the dispositions 0f the partsof the-machine on the Yside opposite from that shown in Figure 3, it will be observed that the nprights 39 are three in number, and that the lever 45 is disposed between two of them, while the roller dies or rolls43 and 44 are on the oustide of said uprights. Further, disposed between a pair of said uprights 39 is t-hc friction disk 52, rigid with the shaft 36 and die 43. This said disk frictionally engages the friction disk 51 rigid with the shaft 16 driven by the wormgearS meshing with the worm 4 driven by the power shaft lt will further be loo observed that the said friction disk 52 being mounted upon the extension 39 turns around the point 3() as a pivot, and thus can be inoved toward and from the friction disk 51 against the compression or tension of the spring as the case may be. In so far as the mechanism has now been disclosed it will he understood that the lever Ll5 may be readily manipulated to increase the opening between the dies d3 and fill, so as to admit the rod 3d, whereupon a turning of the power shaft 3 and friction disk 51 will through friction turn the friction disk 52 and the roller dies d3 and lfd to such an extent as to reduce a portion of the end of the rod 3d. .lhis reduced end is: conveniently gripped by the sleeve d() provided with the clamping lever Ll1 and with the flexible connection L2 having the hook 28 adapted to engage in one of theholes L l-(l with which the friction disk 51 is provided. rlherefore, it follows that if power is now continuously applied to the said friction disk 51 in the manner albove disclosed, the rod 3d will be forcibly drawn between the reducing dies and lid, and its reduced end will be wrapped around the gypsy head or drum 12 inplace of the ilexible connection lf2. Ain like manner, the reduced end of the rod is led to the .next pair of roller dies associated with the drum or gypsy head 13, wraliped around said drum and then led to the next pair of reducing dies associated with the gypsy head ll, and so ou until .it reaches the block die to be described hereinafter. Y

During this operation, each of the levers Ll5 may not be thrown back to the normal position, if it desired to make the threading of the rod 3d between the dies easier. @n the other hand, after the rod 3L has been properly threaded through the various dies each of the levers d5 associated with their respective pairs of roller dies 41:3 and lll/l are thrown bac to their normal positions, wher pon the openiin between the roller dies are closed to the Je to which it is de sired to reduce the wires at the pairs of dies in fpjiestion. The continued application of power through the shaft iland respccti ve worms 1, 5, 6 etc., will now cause each of the drums 12, 13, 111-, etc., to pull on the partially formed wire which is wrapped around the same, and thus will each friction disk 52 be turned around the center point 30 against the compression of the spring 33 to increase the driving friction between the disks 51 and 52. That is to say, the harder the pull or the more reduction that is required in the wire at each drinn head .12, 13, 1d, etc., the greater will be the friction between the driving disk 5l and the driven disk 52. That is, the pull of the wire itself governs the amount of power that applied to the rotation of the reducing roller dies.

New, it will be apparent that if the re duction of the wire or rod at any particular pair of dies causes the wire to lengthen to a degree which cannot be taken care of by the increased speed at which the corresponding gypsy head drum 12, 13, 4l, etc., is rotated, then the friction of the said reduced wire around the drinn in question will lessen, which in turn will lessen the pull on the corresponding` roller die i3 and friction disk 52, and thus will the feed of the wire 102, at the particular gypsy drinn in question, be lessened.

It thus results 'that each of the drums 12, 13, 14T, etc., automatically governs the speed of the wire through their correspondiiig reducing dies, and takes care of any excess of length that would otherwise occur. In the saine way, should the feed of the rod 3d between any given pair of dies d3, #ll be insufhcient then the friction of the reduced wire around the corresponding g psy drum 12, 13, 1st, would be increased, and the power applied to the corresponding reducing dies 33 and 3l; would be likewise increased, so that the speed of the wire between the dies would be in turn increased. filo again, it is apparent that no matter whether too much wire is fed to a given drinn 12, 13, etc., or too little wire is fed thereto, the action of these drums is perfectly automatic to .maintain the speed of the wire through the dies at a predetermined point. Of course, it will be understood that each friction disk 51 is rigid with its corresponding gypsy drinn l2, 13, 1d, etc.

Further, it will be apparent that the actual speed at which the wire travels through the dies will not only be governed by the gear ratios between the power shaft 3 and the various driven worm gears 8, 9, 10, etc., but would also be governed in a nieasure by the adjustment of the screws 32 and the compressions of the various springs 33. rlfhe wire before being thus reduced to the approximate size by means of the roller dies just described, has been, however, passed on through one or more block dies 53 as above intimated. rdinarily one block die will be sufficient, and it is composed of a .lower half 55, see Figures G and 7, and an upper half 56. 53 represents a lever provided with a cani to control the movements of the upper half 56 and to thus enable the wire to be inserted and the cud attached to the drum 15, see Figure 1. This attachinent, of course, to the drinn 15, :is similar to that of the preceding gypsy drums and takes place before the roller dies have commenced to work'. Freni the druni 15 the wire passes on. through the straightening machine 100 and thence' through the swaging machine lOl to be presently described. its above stated, this threading of the wire all takes place before the roller dies have commenced to operate on the finished wire.

lli

i On the lextreme right handend of the m'otor .shaft fiasseen in Figures l1a and 9, is a driving worm 61 .meshing with Va xworin gear v62 mounted on the shaft. 63. Said `sha-'ft 68 also carries an interiiiediategear, .not shown, but which-is `rigid `with land is .a pinion 66 meshing with -the gear `67, riiioiintedonthe shaft y68, rigid withpapinion 69 meshing witlrtlie gear 70, mounted on `tliesha-ft 71rigidwith the pinion 72, meshing with lthe pinion 7 3, mounted oiitlie shaft 74. As best shown in Figure 19, .the

shaft .65 carries aroll 7 5 coacting with the l h 5, 6, etc., and their corresponding worin roll 76.mounted on the shaft 77, carriedby the frame 7 S pivoted -atv 79. Further, the ,shaft 71 carries the cutting and swagiiig die 82, coacting with the Vcutting and swagiiig die 83 vmounted .on the shaft 74 `carried by theV vertically adjustable frame ineinber 81.

The wire l10.2 after vpassing through thel straightening machine provided with the straightening` rollers 103, 1,04', and 105, passesonbetweeii the .feedrollers 75, and 76, driven fromthe shaft 65 4.and between the swaging and cutting dies 82 and 83 as illustrated.

The shaft 65,is-the main driving shaft of the `parts of the lmachine 101 andis supported in the framework 105 mounted Aon 'the inain frame 1l of the apparatus;

As best .shown in Figure 2a, there are two frames 105 mounted on the inain frame 1,

vand the gears and coacting parts numbered from 66y to 8.3 above mentioned are .duplicated on each side of the main supporting frame as are lthegypsy-c lruiiis and other partspabove disclosed.` That is, the niech- V.

anisiiis areduplicated on each s-ide of the main driving shaft v3 throughout this ma.-

cliine. Y

It will be observedthatthe lupper feed roll 7 Gbeing mounted on the frame 7,8, its

7feeding action is controlled by the screw 106 and the vcompression of spring 107. 10S

`is a screw carried bythe end of 'frame 7.8,

and the lower end 1,09 of this screw rests on the squared surface of the member 110 Vpi-votedasat 111. `Rigid with the member 110 is the lever 1 12 provided with the roller 11.23 adapted to, bey struck by the cani 1111 with which the cutting and swagiiig die 83 is provided. vWhen said roller is thus struck by said cam it slightly raises or turnsithe nieinber110 on its pivot and `through the screw 108 and member 78 slightly raises'the feed rollerv 76'froni itscontact with the .driven roller 7 5 and momentarily stops the pull of the wire through the straightening machine 100. The member 7 8 also `has pivotedthereto as at the lever 116 whose vlowerend rests on the surface 117 of the frame 105. Should the operator at any time wish tosto the feed of the wire ,through the machine 101'he can do so by Y turning this lever `toward the left as seen in lFigure 9.

The . swaging rollers 82 and 83 are pro- .vided with sii-'agingdies 119 `and cutters .sun'iinarized as follows: The various gypsy heads or pulling drums 12, and 24, and

25, 11 .and 26, and 15 and 27-are operated at successively greater speeds through the gear ratios adopted between Athe worms fi,

pair of roller dies 43 and 44. are associated.

It thus results that when the partially drawn wire 84 is pulled through a given pair of rollerdies 43 and 414, the pulley of said partially diawii wire governs the friction betweenthe disks 51 and 52, and thus governs the power with which the upper rollers die 43 is driven. The power with which the said upper roller diel is driven in each case, of course, governs the speed with which the partially drawn wire M is fed 'to a particular pulling drinn.

fllherefore, if the wire becomes too `much elongated at any stage of the operation, the friction arounda given drum 12 will be lessened, the pull will be lessened, the driving power froui the `friction disk 51 will be lessened, and the slack will be immediately taken up. (ln

Vthe other hand, shouldy the elongation of the wire through any particular pair of roller dies 4:3 and 111; be insufficient to ineet the desired requireineiits` then the. pull ou the `corresponding upper die i--fl will be iii-- creased, the `friction between the driving dislr51 and the driven disk will he iiicieasedand consequently the feed through theparticular pairof roller dies 43 and H. willbe increased, so that there is `an automatic tendency to take care of the elongation of the vwire throughoutthe machine, and tocause la smooth and continuous oper` ation of the same.

It thus results that the various lengths to which the. wires 4are elongated after passing through any particular pair of rolleidiesare `automatically governed :ind that the wire is continuously fed `to the block dies 53 and is continuously drawn through said block dies by the pulling drums or gypsy heads 15 and 27, as will be readily understood. From these said drums 15 and 27 the wire is continuously fed to the straightening machines 100. It requires ot course a considerable power to draw the wire through a straightening machine and this power is supplied by the pulling or feeding drums and 76, see Figure 9. .It therefore results that in the operation ot this machine the rods are ted in at one end and the tinished wire 102 is continuously fed to the straightening machines as above disclosed, while the feeding or pulling rolls 75 and 7G draw said wire through said straightening machines and pass it on to the swaging and cutting rolls 82 and New the speed of the 'feed rolls and the diameters ot the swag ing and cutting rolls determines the lengths into which the wire are iinally out, as will be readily understood. But it is desirable, although not necessary, to have slight and momeiitary panse oi the wire during the cutting action. To accomplish this, the swaging roll S3 is provided with a cani illl which strikes the roller 113, moves the lever extension 112 toward the lett as seen in Figure 9, and thus slightly raises the block 110 on its pivot 111, and thus raises the screw 108, the trame 78, and the iced roller 7G, and consequently momentarily stops the `Feed of' the wire at the moment oit the swaging and cutting action. iilihile this temporary stoppage o1 the feed :rf the wire is had, the ted wire will slightly bend betere the straightening machine as indicated at 126 in Figure 8. The pause ot the movement oi? the wire is so very slight, this said slack or bend 126 is immediately taken up by the feed rolls 75 and 76, and the cutting and swag-ing action continues.

Ot course, it will be understood that whereas it .is desirable to de'l'orm the ends oit the cut lengths 127, yet it is not absohitely necessary to do so, for said. lengths 127 can be cut just as well without employing the swaging dies, and thereliore this invention is intended to cover a machine for drawing and cutting the wires, as well as a machine ttor drawing, swaging and cutting the wires.

ltwill now be clear that by simultaneously drawing, straightening, swaging and cutting the wir the operator avoids the annoyance and the expense which has heretofore been entailed due to the finished coils of the wire becoming entangled when being vt'ed to the straightening machines, as well as t-he delay and expense which is entailed in the 1nanufacture oit the finished coils of wire at one place and the cutting and swaging of the Wires at another place. By this invention the entire opera-tion ot' converting a mill rod into finished straight wires ot predetermined lengths is accomplished all in a single opera tion. ln other words, the successful operation of the feeding rolls 75, and 76 as well as oi2 the swaging rolls 82 and 83 is dependent upon the continuous and smooth feeding of the wire Btl: to the straightening machines and to the synchronism of all the driving parts due to their connections with the single driving shaft 3. rlhe length of the straightened swaged wires 127 is best con.` trolled by the reducing gears lettered `troni Gi' to` 70. These said gears, as will be clear from Figure l", are carried on the lever 130 playing over the rack 131, and may theretore be readily litted otll the machine and other gears oi other dimensions substituted therefor. .By this means the speed ot the swaging and cutting wires is governed and the lengths of the cut wires correspondingly changed. @t course it will be understood that all the mechanism above described is duplicated on cachA side ot the machine.

It is obvious that those skilled in the art may if'ary the details oit construction as well as the arrangement oi parts without departing trom the spirit ol the invention, and therefore l'. do not wish to be limited to the above disclosure except as may be required by the claims.

l/Vhat is claimed is:

l. in a ncombined wire drawing and cutting machine, the combination et means tor drawing the wire to a predetermined size; means for straightening` the drawn wire during the drawing operation comprising means for pulling the drawn wire through the straightening machine; and means tor cutting a portion ot the straightened wire in predetermined lengths while another portion thereof is being.' ted to said straightening machine.

2. In a combined machine tor drawing and cutting wire, the combination ot a plurality ot dies through which the wire is drawn; a straighteninp` means to which the wire di rectly passes troni said dies: means to pull said drawn wire through said straightening machine; means to cut into predetermined lengths the straightened wire; and means to stop the pulling action during the cutting operation.

In a combined machine tor drawing, straightening, and cutting wire, the con'ibi nation of a plurality of drawing dies; means to pull the wire through said dies; means to regulate the length olf the wire passing said dies by the pull of the same on the dies; a straightening machine to which the regulated lengths of wire are continir ously passed from said dies; means to intermittently at regular intervals pull the said regulated lengths of wire through said straightening machine; and means for cuts ting said wire into predetermined lengths between said intervals.

4. In a combined machine tor drawing,

litt! Cil reduced in said dies by the pull of the said wire on individual'dies; a straightening ma* chine to which the reduced wire is continuously fed from said dies; feeding means for pulling the reduced wire through said straightening machine. for predetermined intervals; means to swage and cut the pulled wiie between said intervals; and means for operating the dies, the pulling means, thel feeding means andthe swaging and cutting means in synchronism with each other.

5311i' a wire drawing machine, the combinationv ofV ay pluralityV of'roller dies; means foi pullingthe wire through said dies; me'ans for regulating the lengths of wire reduced at each? die by the pull of the wire at each die; and means for simultaneously swag'ing and cutting into predeterminedlengt-hs? the said wire after passing said dies.

6. VIn a wire drawing machine, the combination of a plurality of roller dies; power driven means for pulling the wire through said dies: friction driven means for regulating the lengths of Wire reduced at each die by thefpull of the wire ateaeli die; and means to simultaneously swage` and cut-into predetermined lengths the said wire afterV passing said dies.

l. In a wire drawing machine. the combi nation ofv a plurality of roller dies;-mea-ns for pulling the wire through"A said dies oomprising a power driven rotating drum around'whichv the wire is passed, and means for regulating the lengths of wire reducedl at each die by the pull of the wiie at each die con'iprising a. piyoted' disk frictionally driven from aI member rigid` with said drum.

8. In a wire drawing machine, the combinajtion of a plurality of pairs of roller dies; means topermit said pairs of dies to move around a fixed center; means to frictionally drive one of the dies'in each pair;

anda drum associated with each pair rigid!l with said last named means adaptedtol pull the wire-through its corresponding pair of dies.V

9. ln awire drawing machine, the combination'ofa plurality of pairs of roller dies; means to permit said pairs of dies to move arounda fixed center; means to control the amount ofy power required to move said dies around said center; means to frietionally drive one of the dies in each pair; a drum associated with each pair rigid with said" last named means adapted to pull the wire through its corresponding pair of dies; and means to drive said dies and drums in synchronism and at diii'erent speeds.

10. In a combined machine, the combination of a power shaft: a plurality of pairs of wire drawing dies disposed on each side of said shaft: adrum for each pair of dies adapted to pull the drawn wire through its corresponding pair of dies; means for pivotally mounting each pair of dies to enable the pull of its corresponding drain to move said dies around a fixed center; means associatedv with said drums for frietionally driving one of the dies of each pair; and friction means moving with each pair ol dies adapted to be driven from each drum.

ll. In a combined machine, the combination of a power shaft: a plurality of pairs of Wire drawing dies disposed on each side of said shaft; a drum for each pair of dies'adapted to pull the drawn wire through its corresponding pair of dies; nieaiis for pivotally. mounting` each pair of dies to enable the pull of its corresponding drum to move said dies around a lined center: means associa-ted with said drums for frietionally driving one of the dies of each pair; friction means moving with each pair of dies adapted to be driven from each drum; a wire straightening machine on each side of said shaft to which the reduced wire passes from said dies; means on each side of said shaft for pulling the wire through said straightening machines; and ineanson each. side of said shaft for cutting the wire into predetermined lengths.

In testimony whereof I aiix my

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