US846942A - Mill for rolling annular articles. - Google Patents

Description

` @XM/mimmo 110.846,942. 121111111111313 MAR. 12, 1907.-

' 0. V011 P11111?. I

lMILL FOR ROLLING 11111111.1111, ARTlGLEs.

APILIGATION FILED MAY 10.1905. v

11 SHEETS-SHEET 1..

mi Si No. 846,942, PATIINTIID MAIL 12, 1907.

y C. VON PIIILP.

MILL IOR ROLLING LNNULAR ARTICLES.

APPLICATION FILED MAY 10,1905..

1l SHEETS-SHEET 2.

No. 846,942. PATLNTLL MAR. 12, 19074 C. VON PHLLL MILL FOL ROLLING ANNULAR ARTICLES.

APPLXOATION FXLED MAY 10,1905.

W I @La @l 11 SHEETS-SHEET 3.

No. 346,942. PATLNTLD MAR. 12, 1907.

l C.v VON PHILP. MILL POL ROLLING ANNULAR ARTICLES.

APPLICATION FILED MAY 10,1905.

11 SHEETS--SEEET 4.

wwwtoz PATLNTLD MAL. 12, v1907 APPLICATION FILED MAY 10.1905.

11 Simms-SHEET 5.

No. $46,942. PATLNTLL MAR. 12, 1907.

, o. VON PHILP. MILL PoR ROLLING ANNULAB. ARTICLES.

APPLIGATION FILED MAY 10,1905;

1l SHEETS-SHEET 6.

. 3mm/Wto@ Witwe/mee l y v attain/@243s l PATENTED MAR. l2, 1907. C. VON PHILP.

MILLYFOR ROLLING AN-NULAR ARTICLES.

APPLICATION FILED MAY 10,1905.

1 11 SHEETS-SHEET "7.

@ya MWI 110.8463942. N PATLNTED MAR. 12, 1907.

c. VGN PHILP.

MILL POR ROLLING ANNULAR ARTICLES.

APPLIOATION FILED MAY 10,1905.

` l1 SHBETSSBBET S.

e@ F' 2@ (y No; @www PATENTEDMAR. 12, 1907, o. vom PHILP.

MLL PGR ROLLING ANNULAR ARTICLES.

APPLICATION FILED MAY l0, 1905. v

11 SHEETS-SHEET 94 N0.s/1-,942. PATENTED MAR. 12, 1907. C. VON PHILP.

MILL FOR ROLLING ANNULAR ARTLES. APPLICATION FILED MAY 1o, 1905.

1l SHEETS*SHEET 10 PATENTED MAR. 12, 1907.

f C, VON PHILP.

vMILL POR ROLLING ANNULAR ARTICLES,

PIPPLICATION FILED MAY 10.1905.

-ll SHEETS-SHEET 1lA 3o y 2- 8 is'a longitudinal sectional relevar.

tion b WED/Swear CASI-MIR VON-Pinar, F BETHLEHEM, PENNSYLVANIA, Assieaonro BETH- y struction and arrangement yfully'setigfotl,1

tion of a Atire-mill ,i 3 is Kan end e evation.

part-.fof the `apparatus Q more immediately direction ofJ the arrow, Fig.'4.' Fig-.Gis an relevation looking at the opposite endof the hereinafter and illustratedin the accompanyillustrating one Aof t A is a diagrammatic LEHEM STEEL COMPANY, oF soUTH v,BETHI'JEHEM,,PENNSYLVANIA, -A vveoRPoRA'rioivor PENNsYLvANI A MILL. ROLLING NNULFI ARTICLES- i Specification of Letters '2a/tent. .Patented Marchv'12, 1907. Application met May 10,1905; serial No. 259,686. .To [tu zei/1,0m, it 1n 'L'l/ mnuelrlu" j v Beit known that I, CAsIMlR voN'PmLP, a citizen of the United States, residing at Bethlehem, inthe county of orth'ampton ,and State of Pennsylvania, have'invented certain new and useful Improvements in Mills for Rolling Annular Articles, of which the following is a specification'. I I

My invention relates to rolling-mills,fand more especially to that class. of rollingmills adapted to roll annular objects, such' as steel tires; and m invention consists in-thecombination, wit 1 a pair of s ubstantiallyvertical rollsand a pair of horizontal rolls, of. certain. guide-rolls and means for operatin yadi;-

justingsaid rolls, and certaindetai s ofzconrolled, after which the roll is lifted. The ring-.blank is supported' while fthe roll B moves vertically into and out ofv position by roll C is carried gradually toward the roll D as the blank isreduced in width, and both .the rolls C and D are carried away from -the roll B as the blankl expands in diameter. The tire is guided and kept in circularshape by two pailsof guide-rolls 87- S8, which-are :symmetrically disposed'f-fthat is, equally set positively moved apartand 'gradually 1 and which insuretha-'tllile"guide-rolls inft rentv positions s always maintain the cirl e. g, The movements of `parts areeffected through the igurel is a'longitudinal sections. elevafV embodying my, impi'Lve ments.I Fi ..2isaplaninpartsection.-Fig

l shifted` Fig. 4 is a plan of that i 4 p `with .valvedjlevices controlling the' iowo-Itlielmotor luid. The lbearings or boxesgofthe rojllB are carriedI by a carriage connected with thejvertical'rolls. Fi .H5-1s W, sliding vlogltudinallyl upon -the base# an\elevation in part section looking .-m the:

'securev the desiredy presso machine and in part' section. Fig.vv k7 isa'n elevation in part sectlonon the ,line .f7 -'7, Fig,

parts more immediately connected with the. vertical rolls. Fig. 9 is an elevation invv part section looking in t 1e direction ofthe arrow, Fig'. Fi 10 is a sectional viewl e valve devices. Fig. 11' sectional view in eleva tion, `illustrating the relative positions of the main operai-in r parts. Fig. `12 is a.diagramymatic sectiona plan view'of a like character. Relcrrn r first to the main operating parts of the mec ianism and to the diagrammatic views, Figs. 11 and 12, A and B are the rollsl which act u )on the eriphery and l'inner face of the tire-blank, and) C and l) the 'rolls which act upon'the two side faces, the roll A being. supported in a housing 23, Fig. I2, fixed to the base of the machine and constituting part of the fran1e.- The roll B is movable to and from the roll A, being gradually carried t0- ward the'latter inrolling and may be droppedv vertically to vpermit the remo val of a tire and movements of the guide-rolls`87. 88 are controlled .by the change inposition of the sliding' support for therolls C D and its connectionsxoperating through levers and connecting .devices hereinafter set forth.' Rotation rolls` om a main shaft 42,21 gear 4l on ywhich. eiigagesgears 40 and 67 on counter-shafts 39 and 66',-reslpectively, the roll A, bein'gdriven from thes raft 31', receiving motion :from aI shaft V39 and the roll D from the shaft' 66, the

ge ar 67',the rolls B and C turning in frictional vContact with the tire.

the placing in position of a tire-blank to be plungersI connected u 'operate-the part tobe l plateunder the action, of the motors E EQ; andl'sad roll,with its bearings,may be carried The sulppo'rts'rof the rolls to upon the blank. and are elevated by a smaller motor KQ The is iniparted to one of each pair of rolling' a bearinga,supported bythel1ol`1s1ng23.` The .outwardfluringf therrollingvby appliances y eindif- ..5

IOC

latter sliding with the said rol-l Il), andftherefore 'being keyed 4to turn with and slidev` in the It is important to maintain theworking face of the roll A always in the same position, and as the face wearsaway and as the bearings also wear the axis ofthe roll 'A'must be shifted or moved occasionally towardthe roll B while maintained parallel therewith. As the driving-shaft 31 of the' roll A is in stationary bearings, itis .connected with the roll A by exible connections.

Having described the' above vgeneral features, I will now refer'particularly to the details of construction connected with the. main devices; but I wish it to =be understood, however, thatwhiletlfse details 'relate to constructions 'and 'rrangements which have proved eifectiv y may be varied-in different ways' to secure like results. I The base Z of the machine is a suitablelnetallic frame, to which is bolted the housing 23, supporting the bearilms of the roll Aand provided 4with parallel guides 109 for the car- -riage v10S, (see Fig.' 6,) 'the latter having guides 200 for the sliding housing'123`.l The bearings 21. and 22 of the roll. A slide in recesses in the housing 23 and bear against reverse wedges 24 and 25, connected to and ae.

tuated by -a'scr'eW- rod' 28," having reverse threads fitted to thosein thawed es,so that by tumingthe rod thebearingso therollvA' sharon .is not'ehanguivertia11y.;g. ffrhe rau A may be shiftedl gto i maintain` itv .vertical 'by moving the wedgesvycrticallyfin the same dithrough a sleeve 29, sofas to 'tum'freely therein, the said sleeve being externally threaded to fit a yoke 30, secured'to the housing, 'so thatiby turning the said-sleeve both Awedges may simultaneously be raised or lowered. The bearings 212,2 ofthe rollAf are held against the wedges by, the-'actio'r'i-of;4 springs 27, Figs. 1, 2,- and`4, which bear upon shoulders on rods 26l which are secured toand ex' 'yoke 49, throu h which the tension-rods extend. From t .e yoke 49 extends inward the motor E', the said plunger su plunger 51, which its lthe cylinder 52, carried y the frame, said plunger and cylinder constitutin the motor E, and to a smaller bore- 159 of t ).e'eylinder is fitted the plungerofthe' ported by a stationary cross-piece 200 an -receivingra I motor fluid througlh a pipe 221 under-'conlstant pressure. .T

e motor iluidiuifmitted ytire takes place,

' upper end of which is jointed flexiblvina box to the motor E through a suitable supply lpipe and port controlled by a suitable con' trol-valve, as hereinafter set forth.'

rPhe properthi'ckness of the tire iis `determined by the adjustment of `stop devices', 7o

which llmit the movement of the carriage carrying the roll B. be arranged in any suitable way and be of any suitable character; but, as shown, theyconsist of nuts 61, Figs. 2,4, and 5, adjustable upon thejthreaded ends of rods 59, bolted to the frame and extending freely through theyo ke 49. The two nuts may constitute wormwheels whichy engage worms 63 `upon a shaft 64, provided with a hand-wheel. 65, whereby 8o .both nuts may be turned simultaneously, the abutting of the yoke 49 against the nuts determining the extentpf outward movement y of the carriage W and theegrtent to which the roll .B shall approach the roll A. The Acrosspiece 200 is shown as bolted to theends of the -rods 59. ieg.' he motor G, which imparts vertical movement to the r'oll B, Figs. 1v and 9, andfit's.

bearings is carried by the frame. that -sup- "gemK ports-the roll, the said motor consisting of two cylinders 56, Fig. 9, supported bya' .cross-piece 57 ,.'suspended from the yoke l46 i by suspension-rods 5 8, and each cylinder reeelvesa -p1ungerf55, connected at its upper 95 end to the bearing 44. Motor fluid is ad l mitted to the cylinders ofthe' inotor through .su ply-pipesjcontrolled by a suitable valve@ 'y the operations of the motonthe roll B, with its bearings, can be dropped downward out of the sockets in the yokes," 45 46 to permit the lacino`- of a tire-blank in posi-l tion lto be rol ed, aiaterwhich the roll B can be lifted into,place. By allowing'the pressure, to escape from the motor E the'pre'ssure in the smaller motor E', which is constant, Will force inward `the'plunger 51 and the cariage W and movethe roll B away from the roll A.

.As the tire is rolled pressure is admitted to the motor E,and the plunger 51 is forced outward'against the'pre'ssure in the motor E',

carrying the carriage with it and carrying the roll B forcibly towardtle roll A, the pressure continuing as the rollin. operation on the -adualiv reducing the tire until the proper t ickness is reached.

Inasmuch as the roll A is adapted to be. shifted slightly' to and from -the roll B, I

couple itexibly to the drivingmeans. As il' i ga A shown, motion is transmitted from the horizontal shaft 39 through bevel-gears to a vertical shaft 31, resting in a step36`ard pro wided with a box 33, to which. is'jointed exivbly ,the lower end of a coupling-rod 32,4 the 33 at t 1e lower end of the shaftof the r'oll A. l The rolls() D turn in bearings carriedby the housing 23, which slides lto and fromthe `roll B upon a carriage 168,. the latter slidin on the guides 109, Fig. 6, of thc'lbasc", 54,36

.These stop devices may loo IOS

A A/Iovernentisirnparted to the carriage 108 by the motor-1, l! igs. 2 and 12, co11sisti1 g of two cylinders 106 and plungers 1 10 the cylirders beingsequredto brackets l07',exte1;d11;g fr onri the carriage 108, and each-plunger lbeingl securedto bracket 1-11 on tLe stationary bed or base'. l'he admission of motor iluid io the cylinders y106,` regulated` by ,a suitable valve,

carries the said cylinders to the right,11ig`. 2',-

ro together with `the carriage 108, andthere'by moves the rolls C D towaldftlie roll B'. l'he reverse `rnovement'ol the carriage' is secured` bythe motor l,consistingof the plunger-s i5 and plungers 112 in said cylinders,v andv each 1s secured 1.o.a crosspiece 113,.-cornzeetcd by tension-rods 114 to the carriage '108.

n Motor fluid under cons tant pressure is a'dinitted to the cylinders .ofthe niotor l aLd zo tendstoimovetne carriage S ouuvard,ear .ryin-g. tfllerolls C D awayfromthe roll B; l) uring the-iirst part ofthe outward move nient of the carriage. 108 the housing l1.23 is held swf,

tionary by a pressure device 11 oasuiiable' z 5 character, andtherhous'uxg 1s yfor ,carried wi til-the, carriage `108 wlgenfxtllel-beai ii'gs V12 lim! . niovernento'l" tlze'carrlage .10S maybe eil eetcd h ous- L irg l2'3gas above described;

. infthe cylinder 1-25,`so"thatthe housing-123 is held ith projectionsfnear the' 'ends othe' rolls` (l l''inct-mtact u'itli''the ends olfthe' len-V sion-ro 'ls .47. 48er withanyotherlfearingff` 1 points until ltheJrearin'gs 127 of the carriage. l" 108.f11:ake contact;uiththoseupon theliousing, when4v the'll'atterfwill leniovcdagrainst 5o the Aforce of the lpressure device 4.,' 'lhe rolls C l) lthus remain stationary until the ringl in expanding passesiful-ly l-etvveen Ltllein, u nd` l theyere. then carried out 1ard"as Atherlng 'further increases in (linn'zeter. i A

5`5 '1 he' roll l) is driven by the'shaft 66, coupled to the end of the shaft of the roll, as Shown.. f 1 One of therolls C AD'A is'nlovahle. to and 1 from the other', and, as shown, tlieJlnovahle roll is-theupperroll C, the le'arings 68 69 onwhich are vertically adjustalle in the housing 123 under theaction of lhe'motors KKf. To insure `the rarallclisnr ofthe roll C yuth" the roll l) 'underjalladjustrrents; the ljearings 68 (iQ-lare coupled 'temor/'og together vsir multaneously tothe same extent under the action of the motors. As'shovm, two levers 72 73, pivoted to the housin'are 'cupleda't' their inner ends to a-'link .71.- :'l'he lever 72 is coupiedby a link 70 to the bearing 69, 'and'jo' the lever73'is pivoted` atthe end to a slidef" sliding in transverse guides ol1 the connection vbetween the plunger 76 of `thernotorK and- -th`e bearing. ihe hearing 69 is connected by tensionrods S11-Figs; 1 and '6, .with 'a 7: 'cross-he'alSS, supporting the plunger 84, 1 `which-.lits the cylinder 85 ofthe motor K," said cylinder Supported hy the housing-'123, and the motorlluidl is ad'mitted'under con-A stant pressure through apipe74 to "theevl-v 86 'inder 85 and tends. to lift the plunger 84 and -the hearing 69 vand through the connections the l.earing-68,\\ ith the upper roll. j 'During the rolling operation' the upper roll is 4gradually pressed againstj-t'hetire by the .85 admission of motor iluld tothel motor K, dee. pressing the .plunger-7 6 and-through the con? nectionsthe plunger. 85 and carryi g'dovlfnthe hearings 6 8 69 andthe roll C.; Q .07; "l '111e lou erV position .of fthe roll. C is '-lirnitedffg' hy anysuitahle 'adjustable stop device." ';As

A f liib.-7')7tworods 77 connected hearing (n ,f carry a cross-head '7 8' in'1 ay L e tnrnedlay abend-heel 80a -itlrtlletojnofthe cylinder8-li1nits lo ini'yardfnzoveinent of the tearing '68 a11d. ,it 's' "connections: Afhand jam-nut 81 srvesfto secure vthe stop-screw'79 after-ad- 1 justinent."`4 i if; i :360' Wkhen'it is v (lesire'l-torais`e theroll C, prsj 4 'sure isf ello edt.o escapeJ'ro'nr-the cylinder 86,` u hen theA constant pressure in the cylinder 85"' forces up ard the. plunger 84 ith the tearings und thetoproll. l ""1":05 While the guidefrolls 87788, Figs. 211111112, j 'may le carried outward in any suit-able mannel* so to maintainlheni in constant con-' v at the sane gra(luallynereasing distance no from the center of.il\e tire/,l niake. nsefof de# vices' herel 'y these movements are effected by v the gradual outward niovenent of the carriage 108, and lf'u'illfnow descrilrethe aper ried ly a l'earingllQ, sliding'upon azsuitahle guiding-face, and each hearing is connected lly a link 03 with an arm 04 of a vertical rock-vv 06, to which is pivofed a connecting-rod-Q?, extending diagonally and connected to the short. arm of a lever 08, pivoted to the frente ofthe nvachinc' lclow the motor E. The' outer end of suehlever 98 is connected lya 1254 link 99 with a slide 1 00, sliding upon station ary guides 101 and hearingupon a stop-pin` '105, earriedhy.t-l1e,..adjacent cylinder 106,

v'tact u ith the periph-fry of the tireA and vet all pliances employed for this purpose. x 115" Eachof'tlieguide-rolls 88 88, Fig. 4, is car,-

shaft 95, and each of the latter carries an arm ,121' i and the slides v1,00 are maintained in contact v ith-..tl\e endoi vthis stopf-pin (se that the le- "1 35" vers 98 will swing inward as the cylinders 106 j by'links119.- There-is 'a' constant pressure p ends'ot' the arms 118' inwardand to maintain 3.

. 10S will make contact with a cross-head 120 and will then carry thelatter u guide-rolls are shown in their extremeinner 'under constant pressure.

.108 toward thei'le't will permit the ends ofthe trame, and each of these 'ed by a link 115 to the arm l'l'of a vertical 2O t '108, and an arm-'L18 onl each-shaft L17 near rocking ofthe shafts' 117 as remlts in the `out- A ward movement of the guide-rolls 87. This -evenly laced.

tions-that is, by differential levers\oper move toward the lleft with the carriage 108) by means of a suitable centnllye'ltrranged pressure device F, Figs. 1, 4,- and 8. As `shown, this pressure device consists of a cylinder 103, supported on the base, and a pinnger-102, which is connected by links 104 with tnelevers 98, the cylinder 103r'eceivirig'fluid As a result or'. this arrangement, the'movement of the carriage levers 98 to sw'in toward the left carryl t the bearings'tf tage ginds-fous gmdmuy otll ward as the rolling operation increases the diameter of the tire..

he guide-rolls 87, Fig. 2, are carried by bearings 89, whichV slide upon faces of the bearingsi'oonnectshaft 117, turningm bearings of 4the-carnage the lower end'is ."ontrolledv by a suitable cenkelly-arranged pressure device N, Figs. 1, 2 y

and 12, eonsistl'ug of acylinder122, secured to the base, a plungtii"f121,gc g a cross-head 120, connected with the arms l 18 in the' pressure device N tending to carry the the cross-head 120 in contact 'with a lugar bracket 37,' Fig'. 1, on the bed.` As a result of this arrangement on the outward moveme'xxtro. thecarriage 108 the inner ends of the arms 118'are revented 'from movement. by thecrpss-'heag 120 and there is auch a' movement continues until the guide-rolls 87 are at the limit of their outward travel, at whichtime a lug 129, Fi 1, on the carriage lug 130 ontheoutward with the carriage 108, and there xs no lurther outward movement or the guide.- rolls andthe rolled ring canbe removed.

`- In Figs. l and 2 the rolling-tolls and the.

p osition at the beginning of the rolling of the It will be seen that the guide-rolls are symmetricallydisposed-that is, are equally sepunited-which I have found to prevent theA ring or tire from swinging out to 'a greater extent between some of the rolls than between others, which results when the rolls are unl't will further be seen that the gu' e-rolls are shifted by lever eonnee ati'vely connected with some moving part-of l 'the apparatus, es the carriage of the rolls C l D-so that it is possible togo proportion the leverages as to secure the eelsezmovements required of the guide-rolls without the use of cams, the latter being objectionable from their 'excessive wear, causing variations in l the .movements of the guidedolls-whichresult in imperfect-work. By the combina-i tion suon din'errxtial leverslas described the guide-rolls are carried outward in direct proportionto the increase of diameter of the the motor I, Aand the pressure whichis eonstant in the motor l', acting'on 'the 105, the guide-rolls 88 will be carriedoutward, as before described, while the mf'ove"` nient of the vertical shafts 117 with the can' riagelOS, but with the. cross-head 120 112, carries-the carriage 108 toward the lofts: The slides 100 being neld against' the stops tlonary, insures that' the' guide-rolls 87 shally also move outward. The

.tiem of the rolls C. D, when the contacts or housing v123 re-l mains stationary until' the tire'so increases in' 3S diameter that it is well toward the inner perf-,-

bearmgs 127 of the carriage 108, striking the A eanngs' -128 or the housi will ca the" vlatter and thirolls C D-allbgng with tllfcf friage the guide-rolls reach their ex'-' trex'ne' outer position, when the movement of.l the guide-rails will be'stopiped bythe mov ment of a cross-head .120 o the earriagqthei -4 plunger 121 be' r driven inwardagainst force ot the liqlgid in the cylinder 122." -In Fig.' l2 the positions of the guide-rolls-81r 88 i at the beginning of a. rolling' operation-fire,

shown in full lines, and from this position the said rolls diverge while" maintaining their' synnnetrical relation, as before described, un?

til they reach the position shown bydottedf I lines adjacent the numeral 4119. The, 13 then omplete and no further roll' place; but to facilitate its 'removal t erolls 87 are carried back to the position shown in dotted lines adjacent the numeral 121. The

:takes f slides 100, Figs.4 2 and 4, are limited in theiri inward movement bvstriking stops 38 on the v guides [01, which through the intermediate devices then arrest' the further outward' IIO movement oi' the guide-rolls 88. It will be seen that the guiding-faces for the slitin `A bearings of the guide-rolls arev inclined,

this inclinationl is such and the angularityof.

the various levers and links and the positions of the vertical shafts are also such and sov l portoned that the guide-rolls in all of t err b dill'erent positions will always hold the tire L 1n circular form. It4 will alsobe seen .that the workin face of the roll A is maintained ulwa \l-'s in tlie sume position, so as to eileetrl-i` all vcoperate with the guide-rolls in rolling the tire toa true circle.

It will be seen that the levers are so proportioned and connected that the tire 1s' rolled to the proper size by the time the rolls have moved radially to their final position' and that thereafter the rolls -87 may be c arried by the movement of the carriage 108 'Iss th of the' machinel and extendedfmoveinent of the ro1l-operating devices'. It, will be seen' further on reference to F ig. 12 that the rolls 88 move upon lines which are paral-A lel to lines diverging fr om the inner Working.

point or face of the .roll A, and theoperatingevers and parts are so proportionedthatfasy the rolls 8 7 move fromt of the circle which touchesthe bearing-faces of. the rolls 88 87 Will progress'in the. directionfrom the roll A to the roll B in the same vproportion as each roll 8S travels upon its gui( there will be a substantially symmetrica disposition of'the rolls-in' respect to the same .which will prevent; the bending outward or buckling;r o fithe tire inr'ollin'g,` which occurs y when there is a'material differencein the distance between, the adjacent rolls. This is. 'a most important fea-ture of this invention and isted in manyorms of tirefrolling apparatus.

.To alordmeansforthe easy'ch horizontal f rolls, in case'V o eal these rollstliave1-tap to tapered 'soclgets infthe 'rollfshaf secured. therein by crosskeys 224 Vliilefilf ha'vcfshown' tl 1e c`y linde be overcome by the greater'forceofv the 4larger motors, it will be evidentlthatthe cyl.; inders oflthe-dilferent inotorsfrnaybe of theA samesiz'e 'using motorlluids n der diffrent pressures.4 f

For-:controlliner .the flow' l'of th wit t the arrangement shovvnT yprefer a control 4`device su'ch asf' ill`11stra te'd V in Fig, 1G', which is-used for controlling' the movements of the carri-age 10S. In Vthis construction there is a casing 225, having va' r'i' "inlet-port 226, .discharge-ports-227 and v228),"and`a port 229 for. communicating; Wi`th" the fcylinc'ler. There are two Avalve-stems"'131 132. 'with' valves, that on the former controlling#v the flow from the inlet and the :v alve`on the'lat- A ter controlling the -tlowfrom the cylinderport 229 to the discharge r227, 'and rocker# ie r'ollsSS the rCenter e, so that however the tire may eX and' this @t .the f breakage, f;

- away from the rolls 88, thus so separating l different pressures and lenabling the water to the rolls as to permit the removal ofthe tire without the necessity oli-moving all ofthe rollsradially'outward, as 'has hitherto been reuired and which necessitates fan extended W1 be diselmrged from a cylinder under suitable pressure. A y During the rollingr of the tirethe increase A Ain the-diameter of the latter will press the 7 o guide-rolls and cause the carriage 10S `to niove toward'theleft, and by the abovcdescribed valve arrangement it'is possibleto oppose to this tire-pressure any resistance from the full cylinder capacity down to noth- '7'5 ing, as may bedesired. l

Whilel have illustrated the construe-tion as used for producing` a tire of substantially v rectangular cross-section, it is my purpose to:

use the apparatus for rolling other annular78'o objects and of any suitable cross-sectional shape. the rolling-rolls being formed accord# 'in trly, 'and while I have shown my various improved devices as allV combined in a Inillt will be ew'dent that some of themmayvbe 85 em loyed separately in connection fw ith milsot other constructions. "f I do not here claim the 'construction and1 arrangement of devices fr shifting thejbean" t,

stitutethe suhjectLnmtter-of a separate ap l1 'cationfor Letters Patent. j f

. Without limitingr myself totheproise con'- Astriurjtion,and arrangement shown, Iclaim'f- 'i' 'inner roll B, means fortranvineF it gradually f y 4 of'- the' motorsof different diameters tosegureacon? vstant pressure in .thesmallermotors' that canV jmentin Vtheir guides ,niotor'fhnd 'tothe different cylinders-any suitabledevie f 1 orth..

y of rolls (l,

of an outer roll AA in stationary bearings-an' toward the roll A, ,guide-rolls 88 movable in'aA4 n'forking face of the roll A, other guide-rolls f roc for moving the carriage away from the roll-B, and for moving, the rolls S7-outWard, "afn means for impartingr tothe rollsv 8 S"a mo v .proportionalf toffthe change of position of the center of tiret-ire if'. .rolled by the rolls A, B, substantially as' set"- 2. tire-rollirigv rovided with reducl' Y. inv-rolls A, B.,.C, D, an two pairs of guide-` r cr .ro 1s f or'bearing on the lperiphery lvofthe' tire l land "having bearings siding in guides arf .ranged in respect to the redueingfolls' as scribed, the guide of one pair parallel tolin diverg'ing from the worki 0' fac-e of'. nedf .Y the redueing-rolls, an'd acorn inatinoflevers guide roll bearings in proportion 'tot h e increasing!` diameter of the tire to maintain i t-he rolls'at substantially equal distances r'zc apart..

3. ln a tire-mill, the combination of a pair D, for reducing the Width of the tire, a pair of rolls A, B, for reducing its thickness, means for carrying the inner roll. B, toward the outer roll A, a pair ofguiderolls .at eaehside and guides therefor, and means" for shifting the two guide-relient j 'each Side outward as the rolling progresses,`

constrnctdtdpreserve throughont the roll- 135x.

inns ot' therolls Cl), as the same Will'con- 9o;`

L The combination in Aa tirerollingniilho's i S7, 'acarriage supporting the rolls 87, meansand connections arranged to shift all offsaid ingroperatio the substantial s 'metrical position ofthe ide-rolls aboutt e tire.

4. The combination with the vertieal'rolls A, B and horizontalrolls C, D. anda carriage supporting the latternof twopairs ofguide'# rolls, means ,for moving .the'g'uide-'rolls ad';

jacent the vertical rolls A, B' outwardupon stationary bearings, and means for moving theother guide-rolls in bearings upon the carria e, `said 'means proportioned' to maintaint e'rolls"atcincreasm but equal dis# tances-from veach otheras t el rollin operations roceed, for thepurpose set fort 5. he combination with the rolls A, B, o'f

Aa tire-rolling machine, of means for. carrying one of said rolls toward the other under pressure,' two pairs of symmetrically-disposed guide-rolls, anda series of levers-connected and proportioned to hold the same, in contact with the periphery of the tire ate'qual but increasing distances from each other during rolli sbstantiallyasset forth,-

` animatedV wah-the carriage and witte/oie guide-rolls to shift 'thelatterto-an extent'determined bythe movement of the carriage,

6. he combination ini w til-5mm, ,of 'romebearin thereforga earria emovable toend: from lt e rolls'A, "13 andi evers ""'o eratively".

connected with bearings vofl all t ie guide?, rolls and V with said .carriagecto shift fallthe -rolls to anf'extentliproportioned`to theextenty of movementsof the carriage; substa'ntiallyV assetforth; 1 i l. 7. The combinatioirwit and ev rs 5 operatively connecte bearings andwithfsaid -carriage "to" be operated to shift the 'guide-"rolls to -an extent dee" termined byv andproportioned'tothe move ment of the -carr 'iage, substantially as setvv forth.

D for .tile :011s 0.11), and mem-.sammy substantially asset forth,

riage, rock-shafts turning in the carriage and havingr arms connected with thebearings of said rolls S7, a cross-bead and rods connect- "ng it to arms on the .rock-shafts, a pressure ollsA'a'nd, B, the rolls() andDand a'carriagetherefoi-,j two pairsofjgidesrolls, beans therefor l device arranged to hold the cross-head in po ysitiovn during part of the movement of the car- Ariage,V andv means to thereafter carry the cross-.head with the carriageJ` substantially' 7o 11. The combination of the frame, a caras set forth.

riageslidingl thereon, a housing sliding on the carriage and reducing -rollscarried by the housina, guide-rolls 87 and bearingsthcrefor movab e on the frame, a stop on the carriage, roekshafts carried b the carriage and connected With `sai d bearings and having arms, rods connecting said arms and a :cross-head, a hv draulic cylinder and plunger supplied with motor fluid under constant pressurennd arranged tomaintain the cross-head against the stop during the reliminary movement of the carriage, and abearing'on the latter arranged to engag and shift thecross-head 4during the final movement of the carriage, substantially as set forth.

' 12. Themmbmation with the Sliding arare femke mus e, D,v and with the guide 5 f froll`s`87 'and `bearings therefor,- of rock-arms cai'ried;by the carriage and connected with riage afterthe guide-rollshave reached their Iolite? 'theff'giiidroll bearings, a. cross-head con-1 s ".,nected'with lthe rock-shaft, a 'fixed stop, a"

pressure deviced for holding.A the crosshead .t v4 against the stdpfand contact parts arranged j to cause thefbross-head to move with the car- Iaaitions, substantially as setforth.`

c ca-combination of the' frn me, rolls -A,Y Y

'B, carriage sliding onl the frame', housing sliding on the carriage, rolls C, D, carried by said housing, motors for moving thecarriage on thefframe in reverse directions', apressure devicelarranged yto hold the' housing in position in respect to the rolls A, B, during the first partjofthe movement of the carriage away from'said'rolls, and contacts on thc cary riage and housing 4insuring thepfnovelnent of the latter with tho former during-thc final part ofv the movement ofv the carriage, substantiall as setforth. f f

14. T e combination in a tire-mill, of vertical rolls-A, B, and housing therefor, horizontal rolls C and D, and 'a carriage therefor, two

p.air.of guide-rolls and bearings therefor,V le- .l

ver dvices'supported by th'c housings of the ,vertical rolls, and other lever devices supported. bysaid carriage, said devices-independently connectedl with the .guide-roll nea-rings, and nic-ans whereby the lever devices are operated to shift thosnme to an extent proportioned to the position' of the can.

riage, substantially as set forth. c In testimony whercofl have signed my name to this specification in the preser'ice of two subscribing'witnesses. .Y

i Witnesses: i

CHARLES E. FOSTER,

EDWIN S. CLAnKsoN.

izo.

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