US1081964A - Metal-working machine. - Google Patents

Description

H. M. HUNTER.

METAL WORKING MACHINE.

1,08L964. o' 1m Patented Dec. 23,1913.

4 SHEBTS"SHEET 1.

' HM. HUNTER.

METAL WORKING MACHINE.

IIIIIIIIIIIIIIIII EB.26. 1912A 1,081,964. Patented Dec. 23, 1913.

1 SSSSSSSSS EET 2.

@mi/Immo: mantoz s. MP T .i m 4m w en. .Y m. m H

' Patented 1160.123, 1913.

Hu 72 777 QZIS/Hozwgm H. M. HUNTER.

METAL WORKING MACHINE.

APPLICATION FILED PEB ze 1912 1,081,964.

H. M. HUNTER. METAL WORKING MACHINE., V APPLICATION FILED FEB.2G, 1912.

Patented Dec. 23, 1013 4 SHEETS-SHBBT 4.

f l l Unten sie ne, Artnr oratori,

HUGH MUNROE HUNTER, OF CLEVELAND, OHIO, AssrGN'ontuo THE NATIONAL-ACME MANUFACTURING COMPANY, or GLEVELAND, OHIO, A Conroe-AT ION 0F oHIe.

IITAL-WORKING MACB'E.

rosanna.

Specification of Letters Patent.

Patented Dee. 23, 1913.

Application led February 26, 1912. 4Serial No; 679,811.

To all whom it may conce-rn Beit known that I,- l-lnen M. H Unfrnn, a citizen of the United States, residing at Cleveland in the countyy of' Cuyahoga and lState' of Ohio, have invented certain new and useful improvements in' Metal-lVox-king' Machines, of which the following is a specification'.

` This invention' relatesto met-al working machines, and moreparticuflarly'to that class thereofknovvn asimultipl'e spindle machines, the object of the' invention being' to provide a multiple spindle machine having improved i Work forming means lby means of which when angular stockis being formed `the chattering and 'vibration` of the tool! will loe largelyi overcome as Well as the extreme resistance toV the' Working of the tool avoided, and by means oit' which improvement an increased production of' from' thirty to' fifty per' cent, iis-obtained whether the stock be ,round or angular.

In thel drawings accompanying ahd *fornr` ing part of this specification, Figure- 1 is 'a perspective side view of a1 portion` of a multil plei spindle machine halvl-n'g this' improved forming mechanism; Fig. 2' is a `perspective side View of the opposite side of the machine illustrating more clearly the different form ing Operations on the same piece of Work;` Fig. 3 is a perspective side view of the same side' of the machine as that shown in Fig. l, but illustra-ting one of the forming tool carri'ersl thrown upward and out of itsWor-k-in'g posi-tion; Fig. 4 is an end View of the turret end of the machine looking from .right to left in Fig. l; Fig. is a 4diagraunnatic View illustrating the movement of one of the Similar characters of reference indicate corresponding parts throughout the figures of thefdrawingi.

In machines of this general class, where the'fomiing tool makes a Wide cut on a hexagon Or square bar there has" a'lWa-ys been considerable chattering and vibration, and therefore more or less trouble on account ot the extreme resistancev tothe forming tool while passing over the corners of the stock. In Otherwords, during `the rotation of thcstock,

every time the tool comes into contact with meets with the heaviest resistance. Furthermore, When the tool starts intod the work it strikes the corner first, asithis is the greatest diameter of the stock. Consequently, as the tool* in starting into the' work lirst engages that part of the stock having the' greatest diameter, and therefore one of the corners of the stock, it does not do any further work until it strikes theV next corner during the rotation of the stock, and this causes the tool to chattenas' in effect the piece ot work is rotating irregularly. By means of the present. improvement this chattering is largely eliminatxad, as I am able to perform the first two forming operations by a shear-` ing cut. ln other words, by using a single forming tool it is inrl'n'acticable tomake a shearing cut on' the stock, for the reason that the piece of workwouldbe left in that shape after the tool finished cutting, but in the present improvement, by having thrcc forming tools! a shearing cut can be made in one direction by the lirst tool, a shearing cut in an oppositeA direction by' the second forming tool, and the' third' tool forms the work into -the cylindrical sha-pe in which it is desired,

in which form it is usually necessary to leave the stock,I and the cuts in each easewill be smaller, so that such culs can be made faster and the tendency to chatter practically eliminated lby reason of this shearing cut over the corners or angles of the work. Furthermore, whether thc forming operations take' place upon angular formed stock or cylindrical stock thel output of the product is materially increased by performing thcse forming operations in three steps, since by having three ditlerent positions in which to carry on the fmniing operations the time within which they are performed is reduced from thirty to fifty per cent. 1in other words, although the forming work is performed in three cnicrations in the presentimprovement, all of these operations aredone in the time that would be necessary to properly cut the work with a single tool'.

In other words, by dividing up' the opera-y tions the time that it takes for the tool to make the longest operation on the piece is divided so that the actual time of making that piece is reduced just that much. In other Words, heretofore where the forming operation had to be performed with a flat 20 provement- .35 turret by levers 8 operated by sui-table cams o 9 so formed that it will make a'shearingcut,

55 sleeve, being held therein against longitud e upper end with a sleeve 19 mounted on the.'

tool, and therefore hadY to go into the work slowly, especially where angular pieces were beingcut, if it took a minute to make a forming cut with. one such tool by dividing this 5 forming operation into` three, using` three 'forming tools, theforming work vcan bedone vin one-third the time- If heretofore the formingoperation was performedwith two 4 formin tools, by using threethe timeof l() doingiat work is cut, in half, since all of the' tools are operatingsimultaneously and'v at each operation'of the three tools a piece of work is being completely formed. j Furthermore, it is necessary that aforming-tool, vto form accurately and properly, should.v cut on the center, and thepresent improved mechanism provides a machine in which this, result is practically obtained In the present -emb diment' of this.. iin-qv it comprises 'a rotatable turret 2 carried by the casing 3, which turret isV .provided wlth a 'Series of work spindles 4, shown herein as four number, the turret and spindles being'res ectivelyindexedand rotated by some suita le means' not neces# saryY to be described herein. The base 5 upon which the turret is mounted also supports-'a slidingv toog carrier 6 shiftable byy Vsuitable means toward and from the turret. gD'At each 'sideof the `turretis mounted a compound slide 7 adjustable toward and ffrom the turret in the manner usuallypro lvided for this purpose, and ,a part of' whic h is shiftable towardand from theaxis o'f'the carried by a cam-drum on-the cam shaft, not necessary` to be shown herein. In lthe presentinstance the compound slide at the left of the machine carries al forming tool while thel compound slide at the right of themachine carries -a cuttingo tool `10 for cutting 'oi the work after theforming operations are completed.

Connected with veach of the compound` slides inthe mannerfhereinafter described is a swinging forming tool carrier 11',.and as each isa duplicate of the other a de scription of one thereof isdeemed suicient.

50 Mounted on the turret casing is a bracket 12 having a pair of sleeves or bearings 1,-3

and 14:v forthe reception of'short eccentrically formedshafts 1.5; that. islto say, each shaft is rotatably supported in its bea-'ring nal play and is provided with a short. portion -16 eccentrically located to that partv 17 thereof which projects into the bearing sleeve. Loosely mounted upon adjustable eo cone bearings carried by the eccentric portion of each of these shafts is a depending forming toolI carrier 11 constructed to receive a forming tool 18, and forthis pur-- eccentric portion 1,6" of the shaft, depending '.fromwhichsleeveis an arm 2O Carr ingy a U-shaped portion 21 for the reception v'of shaft.l The lower end of the, other arm 2,9

a pin 31- carried bythe forming tool carrier, -the construction of the bifurcated end being `such that this bell-crank` lever can move or link -is bifurcated it enables vthe forming tool carrier-onV separating such link from its .pin 31 and. detaching one end `of Ithe' more easily .than if`the-lower end `is`pro vided with a slot. 'By s o constructing the machine that these'car'riers. may be thrown accessibilityvto the [mechanism adjacent to ofa turnbuckle 35 having a'right and left ,ter-piece(v This -turnbuckle enables y the depth of the formin cuts to be regulated:

nected to a projection on the-carrier, which is provided with' a series 'of holes whereby the angular position of the turnbuckle may be changed if desired. Each of the carriers receptionof a handle 38 by ,means of which,

in the manner hereinbefore described, itmay be swung iaway from the work. By* y'this ward and from the work and at the same time, owing" tothe eccentric vshafts which support themjthe tool carriers are raised by fthe eccentric shaft the tool is caused to a straight 4line from the circumference. of

pose the carrier isshown provided atits the-piece of work toward the center for lthe' distance which the tool is to cut. In other of this bell-crank lever is bifurcated, as-at' v30, or 1t may be slotted forthe reception of back and forwardon the pin of the carrier.v When the lowerend of the bell-crank' lever turnbuckle hereinafter described-fte be thrown upward as shown inJFig. 3 much upward theuinsertion ofthe forming--tools -1n, the carrier and in the compound slide'is.` very much facilitated aswell' as affording -the work spindles. Each-bf t-he tool carriers- 1s connected to the compound slideby means.

` hand thread provided with a knurled cen` The inner iendv of 4t eturnbuckle -is conconstruction it will -be.'observed that .as the lower 'forming and cutting off tool' slides ,are moved toward and from the work theswinging tool carriers -are also swung tothe forming tool holder 22, vwhich may be' pivotally secured, as'y at 27,` to a projection 28 of thebracket carrying the eccentric' r is provided with a handle socket 37 for the and lowered, but by reason of the fact that each .tool carrier isplinked in'the manner` .hereinbefore described tothe crank carriedy move in such' manner as tocut on the lcenter of the workg' that is tosay, itvw-ill cut inf thereof.

menace Words, by reason ofthe fact that the forming operations are divided into three the tool does not have to penetrate the work more than about onequarter of the diameter Consequently, by Isupporting the carrier in the manner shown herein itwill during its cutting opera-tion cut on the center. y

From the foregoing it will be observed that by constructingy two of the forming tools so that each will make a shearing out the first forming cut will be made by that tool carried by the compound lslide shown at the left of the turret yin Fig. 4 seas to cut the iwork in the. manner shown in Fig. 7. When this out has been completed the turret is rotated or `indexed in the usual manner and the piece of work is rotated into position tojbe ,operated upon by the forming tool carried by the swinging carrier 11 at the leftof the turret, simultaneously with which, of course, the forming tool immediately below it is performing its work on a new piece of stock. The forming tool lcarried by the swinging carrier at the left of the machine then makes a shearing cut similar to that shown at the left of Fig. 8, after which the turret -is again rot-ated or indexed to carry this truncated piece of work into position to be operated upon by the other swinging ,forming tool at the right off the turret, at

which time, of course, the two previous forming tools are cutting on different pieces of stock. For a large amount of work the stock, of course, could notbe left in the condition shown in-Fig. 48, and therefore the right hand swinging formingtool at this -timecuts the Work so as to leave it in the loperations of the tools of `the slidin T tool carrier on the work are also completed. Of course, when round stock is being operated upon it is not necessary that the forming toolsl make a shearing out, but by the pres- `ent improvementthe stock may be completely formed in much lesstime, as hereinbefore pointed out, whateverthe form of the stock may be, and when angular formed pieces are being Worked `it `is ypracticable `in the present improvement to make shearingcuts, which thus very materially eliminate chatteringand vibration of the tools. From the foregoing it will thus be observed that in the present improvement the time re-I quired to finish one piece of work, so far as the forming operations are concerned, is

4 equal only to the time required for one sin- I gle operation, and as each single forming operation is necessarily much shorter than that heretofore necessary where one tool is used it follows that the output of the ma.

chine is very materially increased while' ever, to use only one of these stay rods, and

this at that side of the machine where the heaviest forming operations take place.

In practice the sleeves 13 and 14 of the bracket or housing l2 will be provided with adjustable cone bearings substantially similar yto those shown in dotted lines in Fig. 1 at the .forward end of the shaft l5 for supporting the carrier 11 for taking up all play or wear of the parts.

In the diagrammatic view, Fig. 5, illustrating the movement of the forming tool, the perpendicular dotted lines I) illustrate the swinging movement of the carrier 1l, while tlie horizontal dotted line c illustra'tes the movement of the cutting tool cutting on the center, and the curved dotted line a illustrates the movement the cutting tool would take if there was no rising and falling ii-ioveinent ofthe swinging carrier. The dotted lines .e show the rising and falling or oscillatory movement of the crank arm 23 of the eccentric shaft.

I claim as my invention:

1. In a multiple spindle machine,'the coinbination of a rotatably supportedturret carrying a plurality of spindles for the work, a plurality of side tool supports located at the saine side of the machine, means for pivotally supporting one of said supports, said pivot being eccentrically journaled, means for swinging said pivoted tool support and for turning said pivot in its" eccentric bearing whereby the tool will move approximately in a straight line, and means for si multaneously operating the other tool support whereby the toolsmay operate siinultaneously upon the work and. successively yupon the same piece of work. u 2. In a multiple spindle machine, the conibination of a rotatably supported turret carrying a plurality of spindles for the work, a plurality of side tool supports, means for pivotallyA supporting vone of said supports, said `pivot being eccentrieally journaled, `ineans'tor swinging said pivoted tool suplport and for .tunning said pivot in its eccentric bearing whereby the tool will move approximately, .in a straight line, and means for operating the other tool support wliere by :the toolscarried thereby will act succes sively upon the Work.

In a multiple spindle machine, the combination of a rotatably supported turret carrying a plurality ont spindles for the work,`

a plurality of side'tool supports supported independently of each other, one for sliding movement,"means for pivotally supporting 5, the other support above said sliding sidetool` support, ,said pivot being eccentrlcally jour'- naled, means for swinging said pivoted tool' support and for turning said pivot' its eccentric bearing whereby the tool- .will :w move approximately in a straight' line, and

means for operating said sliding toolsupport in unisonwith said'swinging tool sup-- port whereby the toolscarried thereby may operatesimultaneously upon the work and la successively upon the-same piece of work,

` 4. In a vmultiple spindle machine,'th combination of a rotatably supported turret carrying a plurality-of' 'spindles for the Work al plurality of side tool supportssupported ga-independently ofleach other but connected together, Vone supported for sliding movement, means for pivotallysupporting the other support above said slidln side tool i support, said pivot being ecraentrlcally` jourl 2a naled, means forswinging said -pivoted tool .support and for turning said pivot in its-eccentric vbea-ring whereby the tool will moveapproirimately. in -a straight line, and means for operating said slidin tool support ,in

an unison with said swinging tool support whereby the tools carried thereby may opy erate simultaneously upon-the work and successively upon the same piece of work.-

. 5. In a multiple spindle machine, the coma5 bination of. arotatably supported 4turret carrying a plurality'of spindles for the `work, av

plurality ofl side tool supports, and lmeans for vactuating all of said supports whereby the tools carried thereby maysimultaneously4 n@ operate upon the rwork andl successively upon the same piece of work, each ofsaid tool lsupports carrying aforming tool, each constructed to partly or irregularly out the work whereby the complete forming opera- I. 45 tion` on each piece is effected only by' allot` the tools. but' in vmaterially' less time than 'when lthe work vis formed by asingletool l and with-less vibration and chattering when t@ their cutting edges located dierently relatively to each other and to t-he line 'of movement, whereby one toolwill make a out different from that of the preceding tool.

7 In a multiple spindle machine, the com- 465 bination of a rotatablv supported turret car- -operating said tools.

- and means `for aesinet '.rying a plurality of spindles for thework, a

series of three `forming tool supports carrying topls operative simultaneously upon the work `and successively' upon the same piece of work' and each eifec'tive, to perform a third of the forming operation upon the work whereby the complete forming of a piece of work takes place .during the form! ing operation of each tool, and means for 8.` In a multiple spindle machine, the-combinationv of-a rotatably supported' turret carrying a4 plurality of spindles `for the'n work, a series of forming tool supports carrying tools and comprisinga pair of sliding tool 'supports and a pair of swinging tooll supports, meansvfor e'ccentrically supporting each 'of saidV swinging supports, and means for actuating said'sliding tool supportsandsaid eccentric supporting means, whereby the toolscairied thereby may simultaneously operate upon the `work and successively upon the same pieceof Work.

- 9'. In a multiple spindle machine, the com! bination of .a rotatably supported turretcarrying a plurality of spindles for the work, a series ofv forming .tool'supports carrying' tools and comprising a pair of sliding tool supports and'a pair of eccentrically supported swinging tool supports, and means foractuatingall of said supports' in unison whereby .the tools carried'thereby ymay simultaneously operate' upon tliework and successively upon the same piece'of work,

each of said tool supports being independently supported a pair thereof at each'side fof .the work and each vpair connected togather -for movementin unison.-

. 10. In a multiple spindle machine, the combination of a rotatably supported turret carrying a plurality of spindles Afoin thework,` a side toolsupport movable toward and from the Work, a vswinging 'side tool supportl located abdve said side tool support and movable therewith toward Vand from the Work so that vthe tools carried' by said tool supports may v simultaneously operate upon the work and vsuccessively upon the same piece'of work,fmeans" for eccentrically supporting said swinging side tool support,"and

means for actuating 'said means.

11. In a'.v multiple spindle machine, the I combination of a Irotatably supported turret carrying a plurality of spindles for the work, a swinging side `tool support movable toward and romthe work; means for swingingsaidl side tool support, and means for raislng and .lowering said side tool support during its swinging movement. j

12. In Ia multiple spindle machine, the kcombination of arotatably supported turret carrying a plurality of spindles `for the work, a slidin side tooll support movable toward and from the work', a Aswinging side tool support located above and connected with said side tool support and movable therewith toward and from the work so that the tools carried by said tool supports may simultaneously operate upon the woi'k and successively upon the same piece of work, and means for swinging and for raising and lowering said swinging side tool support during its swinging movement.

13. In a\ multiple spindle machine, the combination ofa rotatably supported turret 'f carrying a plurality of spindles for the work, a sliding side tool, support movable towai and fromthe work, a swinging side tool support connected with said side tool support land movable therewith towardand from the work so that the tools carried by said tool Asupports may simultaneously operate upon the work and successively upon the same piece of work, and means for giving the swinging side tool support a rising and falling. movement during its swinging movement. i T

14. In a multiple spindle machine, the combination of a rotatably supported turret carrying- Aa plurality of spindles for the work, a pair of opposed side tool supports movable towardfand from thework, a pair of swinging side tool supports located above said opposed side tool supports and connected` and movable therewith towardand from the work so that the tools carried by said.

swinging movement.

.' eccentrically formed shafts, a swinginor side toolsupport carried by each of said shafts,

15. In a multiple spindle machine, the combinatioirof a rotatably supported turret carrying a plurality of spindles for the work, a pair of opposed sliding side tool supports movable toward and from the work, and a pair of eccentrically supported and swinging side tool supports located above said opposed side tool supports and connected and movable therewith toward and from the`work sol may simultaneously operate upon the work and successively upon the same piece'of work. i l

16. In a multiple spindle machine, the combination of a rotatably supported turret carrying a plurality of spindles for the work, a pair of opposed sliding side tool supports movable toward and from the work, a fixed bracket carrying a pair of a linkage connection between e'ach of said shafts and each of said swinging side tool supports, said linkage connection being also pivotally supported by a'fiXed part of. the

machine, and means connecting each swing` i'ng side tool'support with a sliding side tool support whereby they will move in unison so that the tools carried thereby may simultaneously operate upon the work and successively upon the saine piece of work.

17. In a multiple spindle machine, the combination of a rotatably supported turret carrying a plurality of spindles for the work, ,a pair of opposed sliding side tool supports movable toward and from the work, a fixed bracket carrying a pair of eccentr-ically' formed shafts, a swinging side tool support carried by each of said shafts, a linkage connection between each of said shafts and each of lsaid `swinging side tool supports, said linkage connection being also pivotally su ported by a fixed part of the machine', an n each swinging side tool support with a sliding side tool `support whereby they will move in unison so that the tools carried thereby may simultaneously operate upon the work and successively upon the same piece of work.

18. In a multiple spindle machine, the combination of a rotatably supported turret carrying a plurality of spindles for the work, a. pair of opposed sliding side tool supports movable toward and from the work, a fixedI bracket carrying a pair of eccentrically formed shafts, a swinging .side tool support carried by each of said shafts, a'linkagc connection between each of said, shafts and each of said swinging side tool supports, said linkage connection being also pivotally supported by a fixed part of the machine, and means adjustably and de- 'tachably connecting cach swinging side tool supportwith a sliding side tool support whereby they will move in unison so that the tools carried thereby may simultaneously operate upon the work and successively upon the same piece of work.

19. In a multiple spindle machine, .the combination of a rotatably supported turret carrying a plurality oi spindles for the work, a sliding side tool support movable toward and from the work, a fitted bracket, an eccentrically formed shaft carried by the i bracket, a swinging side tool, support suspended from said shaft, a linkage connection between said shaft andthe swinging side tool support and also having a fixed pivotalfconnection, and means connecting said swinging -side tool support with the sliding tool support whereby they will move in unisonto permit the tools carried thereby to simultaneously operate upon the work and successively upon the same piece of work.

20. In a multiple spindle machine, the combination of a rotatably supported turret carrying a plurality of spindlesA for the work, a sliding side tool support movable toward and from the work, a fixed bracket, an eccentrically formed shaft vcarried by the bracket, a swinging side tool support sus means adjustably connecting i pended troni said shaft, alinlage nonnen-[ tion between'- said shaft fandthe svvingi1lg`V 'side 1tool Asupport and valso hai'liiignl fixed; pivotal .connection7 and adjustableiineans connecting said.l swinging side tool support with the sliding tool support whereby they Willmove i'n .unisonto Apermit the tOQ1spai rie'd thereby to simultaneously operate upon the Work.. and successively upon the same piece of Work. y

' combination of a rotatably supported turret;

bracket, ,asWi oorrying ouzplnnality of.snind1os..for..the Work, a sliding. side tool4 support movable .to- Word. and from thonyorlnfa fixed bracket, an i eooentrically .formed .shaft Icarried bythe naodo .tool Support pondod from said shaft, @linkage -oonneotion betyyeentsaid *.shaftanduthe `Savin' .ing side tool. sllPPOlt and also having Aa Xed pivotalconnection, and adjustable and/de- I 'tachable .Ineansl connecting! said. Swinging Sido tool lsummit with.. the .sliding tool Sup'- port Wherebythey .will move. in unison to permit'. the tools carried .thereby .t6 simultaneouslyoperate upon thelwork. and succesr' sivelypupon the same piece of Work and- WorinI 23. In a whereby also the swinging side tool support may b'ethnow'naway from the Work to per mitaocess thereto. V 22. ln multiple spindle machine, the combination of a rotatably supported turret carrying a; .plurality ofspindles for the WorlaV sliding too-lsupport movable to Wardand from.;the work, a xed-bracket, an eccentrigally formedshaft rotatablycar ried thereby, a swinging-side tool support loosely mounted on; vsaid shaft, a crank arm secured to said shaft, linkage connection betyveen said. crank arm and .said swinging side tool supporti and .having a iiXed-piv- 'otal connection, andan; adjustable oonnec.-

tion between said swinging and sliding tool suppor-ts vvhereliiyv the tools carried 'theijeby may simultaneously operate' upon the Work and successively upon ythe vsame-piece off multiple spindle machine, the combination of a rotatably supported turret carrying a 'plurality of spindles for the' Work, a pair of side tool supports movable toward and from the Work.simultaneously,t so that the tools carried by said tool supports may operate simultaneously upon the` y Work anclsuccessively upon the'same-piece of work, and-a tool cariedbyeach oi1' sa id tool supports, the cutting edge of one being at an angle tothe line ofmov'ement While the Cutting edgey of the followingl tool is' oppositely inclined, whereby the tools are adapted .to make shearing cuts. y

24.v In a multiple spindle machine, .the 'combi-nation of a rotatably-supported turret carlryinga. plinalityl of spindles -for the' Work, a side tool support movable toward port located labovesaid rst. side toolsupf port .andffconnected' movable thereyv ith toward and frnomwthe Work. so that the tools oarroduby Snd tool .Supporto-may .operino upon the work land..A Snooesslvoly nponiho piece of. .Wannee for actuating vio said Supports Simultaneously, and tools onrriool by Seid. tooloiipporto oooh odnptodto make, a out different f rom'that of theyp-re- .oedingtool .and whereby... @non will .partly or.i.rrognl.r1y ont .the Work. So that the oom: plete Aforming operation on each piece is eiectegl in materially less timetlia'n when lessviblfationfand chattering when operatV ina upon Qrrognlnnstook.

, 25. a mult1ple. spindle the oorrying nf. plurality.V ot Spindloafoi the wor z, 'a side tool supportmovabletoward and fromthe .Workz yanother side tol sup combination ot a rotatably. `supported turxet i lsa port located, abovesaid firstside tool sup? portand, connectedjand movable therewith l towngrfl nndfroln. tho-.Work So that ohotoolo .earned by. Said tool. Supports. .may Simultaneone1y-3one1nenpon the Work nlndQSuCooSr Siyoly .upon tho Sanne nlooo of. vork., .and

tools oanro'd. byonld toolisupportetheout? ting' edgeo-one. being at an angleto the lino. of movement .iyhlofftllo .Cutting odge offthefollowinatool..1S opposnoy inclined, whereby each is adapted t'o make a shearing out, and whereby each tool will partly or` ,irrogulnrlyub the Work' no 'that' the Coin" plete formingI operationon each piece of Work is eil"eeted in mateiially. less vtime than when the. .Work informed .lo-.. o .Single tool and with less yibrationhandbattering,when operating nponrrolenlar'nook- 2.6,. In multiple. indie nahme a@ .Combination .oft-alfabeto 1y. .onporto'0l .telnetoarrying .a plnnnltyf. of Sain Wonka' n Pom Q..S1 e;t991

town-'rd one ifrom! ine-.nor

. ,andoonnootod toaotlioi .so thatgtio monoamine by anni tool. )onioporfe moy' Simultaneously operate neonthevork;and..asuoooneiyelynnnen.tho i toolscarrie'd by saidtool,supportsmayimultaneou'sly operate upon t successively uponthesame piece of Work, one pair lof-.Sad .tool-.Supports Carrying tools, the. cutting edge otono being Yat .an

anglo .to the lnoo'f. moyoniont While .the ont-- ting edge oftheifollotying tool is-:oppositelyl inclined, whereby each is adapted to make a shearing cut.

28. In a multiple spindle machine, the combination of a rotatably supported turret carrying a plurality of spindles for the work, a fixed bracket, an eccentrially'` formed shaft carried by the bracket, a swinging side tool support suspended from said shaft, a linkage connection between said shaft and the swinging side tool support and also having a fixed pivotal connection,

.and means for imparting a swinging moveand for swinging said tool support toward.

and from the work.

30. In a machine of the class described, the combination of a fixed bracket, an eccentrically supported shaft carried by the bracket, a swinging side tool support suspended from said shaft, a linkage connect-ion between said shaft and the swinging side tool support and also having a fixed pivotal connection, and means for actuating said tool'support.

31. In a multiple spindle machine, the combination of a rotatably supported turret carrying a plurality of spindles 4for the work, a `fixed bracket supported adjacent to said turret, an eccentrically formed shaft carried bythe bracket, a swinging side tool support suspended frbm said shaft, a linkage connection between said shaft and the swinging side tool support and also having a fixed pivotal connection, andA means for actuating said tool suppor 32. In a multiple s indle machine, the combination of a rotatalbly supported turret carrying a plurality of spindles for the work, a side tool support movable toward and 'from the work, an overhanging swinging side tool support, means for giving said swinging tool support a rising and falling movement during its swinglng movement,

-tion on eachpie'ce is effected only and means for actuating both of said tool supports.

In a multiple spindle machine, the combination of a rotatably supported turret carrying a plurality of spindles for the work, a side tool support movable toward and from the work', a swinging side tool support overhanging said first side tool support, means for glving said swinging` side tool support a rising and falling movement during its swinging movement, and' means for actuating both of said tool supports, each of said tool supports carrying a tool adaptedto make a cut one in a direction opposite to that of the other.

34. In a machineof the class described, the combination of supporting means, a side tool su port supported thereby for rising and falling movement and for swinging movement during its' rising and falling' movement, and mechanism for swinging said side tool support and for imparting a rising and falling movement during its swinging movement.

35. .In a multiple spindle machine, the combination of a rotatably supported turret carrying a pluralit of spindles for the work, two sets of slde tool sup orts, each set.k comprising a pair of side too supports, and means for actuating all of said supports in unison whereby thetools carried thereby may simultaneously operate upon lthe work and successively upon the same piece of work, three of said side tool supports carrying forming tools each constructed to partly or irregularly cut, the work whereby the complete forming gperaia l of the tools but in materially less ltimethan when the work is formed b a single tool and With less vibration and ciiattering when operating upon irregular stock.

Signed at Cleveland, in the county of Cuyahoga and State of Ohio, this 21st day of February, 1912.

HUGH MUNROE` HUNTER.

Witnesses J. L. Momussay, CLoYD HAUK.

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