US635381A - Rolling-mill. - Google Patents

Description

No. 635,381. Patentd Oct. 24, I899. H. GREY.

ROLLING MILL.

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ROLLING MILL.

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ROLLING MILL.

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M- RNEYIS BY M @JITTO No. 635,38l. Patented Oct. 24, I899. H. GREY.

ROLLING MILL.

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UNITED STATES Prion.

PATENT HENRY GREY, OF DULUTH, MINNESOTA, ASSIGNOR TO THE AMERICAN UNIVERSAL MILL COMPANY, OF NEYV YORK, N. Y.

ROLLING-MILL.

SPEGIFICA TIcN forming part of Letters Patent No. 635,381, dated October 24, 1899. Application filed NovemheiZQ, 1897. Serial No. 660,039- (N0 mOdBIJ To all whom it may concern.-

Be it known that L'HENRY GREY, ofDuluth, in the county of St. Louis and State of Minnesota, have invented certain new and useful Improvementsin Rolling-Mills; andldoherebydeclare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use the same.

My invention relates to improvements in mills or apparatus for rolling metallic beams, girders, columns, &c.

This invention pertains more especially to a mill that comprises, first, two horizontal rolls arranged the one above the other in the same vertical plane and in position to operate upon the blanks web and upon the inner sides of the heads or flanges of the blank and having the upper horizontal roll adjustable vertically; secondly, two vertical rolls arranged at opposite ends, respectively, of the horizontal rolls and in position to operate upon the outer sides of the blanks heads or flanges; thirdly, another system of rolls comprising two horizontal rolls arranged the one above the other and in position to operate upon the edges of the blanks flanges in the passage of the blank to or from the first-mentioned roll system; fourthly, means for overturning the work at one end of the works path; fifthly,side guides arranged between the two roll systems at opposite sides, respectively, of the Works path, and, sixthly, two blank-straightening bars arranged at opposite sides, respectively, of the works path and operated as required to gradually effect the straightening of the blank during the latters reduction.

My present invention relates more particularly, first,to the simple,durable,and inexpensive means employed for actuating the slides that support the upright rolls toward and from each other; secondly, to the peculiar mechanism employed in actuating the aforesaid side guides simultaneously toward and from each other; thirdly, to the means employed in the operation of the aforesaid straightening-bars and involving, broadly, straightening-bars simultaneously actuated toward and from each other and actuated more rapidly in their adj ustment than the aforesaid slides; fourthly, to the peculiar mechanism employed in overturning the work upon a feed-table that is arranged below one end of the works path, and, fifthly, in providing each of the flangeedge-rolling rolls between the flange-edgerolling portions of the rolls with a collar and in having the diameter of the collar of each fiange-edge-rolling roll such that the distance between the periphery of the collar and the periphery of the flange-edge-rolling portions of the roll shall agree with the distance between the edges of the works flanges and the adjacent surfaces of the web of the work, so that it shall be possible with the one set of rolls to make one'size of beam, and as the pieceis overturned anygiven nu mberof times until the edges of the beam have a bearing upon each of the said rolls the beam when completed will of course have a uniform crosssection throughout.

My invention consists also in certain other novel and meritorious features of construction and combinations of parts, hereinafter described and pointed out in the claims.

In the accompanying drawings, Figure I is a top plan of my improved mill 'or apparatus, portions being broken away and in section in this figure to reduce the latters size and to more clearly show the construction. Fig. II is an elevation of the roll system B employed in rolling the sides of the webs and heads or flanges of the work, partly in section on line II II, Fig. I. Fig. III is a top plan of roll system B, portions being broken away and in section in this figure to more clearly show the construction. Fig. IV is a top plan of the apparatus or machinery employed in simultaneously driving all of the horizontal rolls of the mill. Fig. Vis an elevation of the roll system employed inoperating upon the edges of the works heads or flanges and showing also a portion of the machinery instrumental in driving the said rolls. Fig. VI is an elevation showing the Web-reducing rolls in end elevation and the operative connection between the blankstraightening bars and the shaft that is instrumental in the rotation of the screws employed in the adjustment of the top web-reducing roll and showing also the operative connection between the said shaft and the screw employed in the adjustment of an upright flange reducing roll. Portions are broken away in Fig. VI to show a half-box for the top web-reducing roll. Fig. VII is an elevation of roll system A employed in rolling the edges of the heads or flanges of a blank and in straightening, smoothing, or removing scales from the web, partly in section on line VII VII, Fig. I. Fig. VIII is an elevation of roll system A at line VIII VIII, Fig. VII, and shows the Iiangeedge-rolling rolls engaging the flanges and webs of the blank. Fig. IX is an elevation, partly in vertical section, showing in detail the operative connection between an upright side roll D employed in reducing the flange of a blank and the top web-reducing roll. Fig. X is a horizontal section on line X X, Fig. IX. Fig. XI is a side elevation, mostly in vertical sec tion, of the mills feed-table that is provided with work-overturning apparatus. Fig. XII is a transverse vertical section of the said table.

My improved apparatus or mill for rolling columns, beams, or girders comprises two systems of rolls one roll system A for rolling the edges of the heads or flanges of the column, beam, or girder (that is hereinafter termed the blank or the Work or the product) and another roll system B for rolling opposite sides of the flanges or heads and the web of the work. The two roll systems A and B are located in line and preferably in such proximity to each other that the blank or work can be fed from the one system to the other, and the work in feeding it from the one to the other roll system shall be receiy ed by the latter before it has left the former, and the rolling or operating surface of the rolls of both systems of rolls are driven positively and in the direction required to feed in opposite directions alternately, and the work is given as many passes through the mill as are required to complete the rolling or shaping of the work, and the blank or work is of course suitably heated preparatory to its introduction into the said rolling-mill, and the work is fed through the mill with its web arranged horizontally.

The roll system B (see Figs. II and III) comprises a top horizontal roll B, a bottom horizontal roll B and two vertical side rolls D and D, arranged at opposite ends, respectively, of said horizontal rolls, and all of said rolls are positively rotated in the direction required to feed the work, as will hereinafter appear. Roll B'is arranged horizontally and transversely of the works path in position to operate upon the upper side of the web of the work and upon the inner sides of the works flanges or heads above the web. Roll B is arranged below and transversely of the works path in position to operate upon the lower side of the works web and upon the inner sides of the works heads or flanges below the web. The two upright rolls D and D are arranged at opposite sides, respectively, of the works path in position to operate upon the outer side of the adjacent flange or head of the work. The work 0 is shown in position in Fig. II. Rolls B B are of course rotated in opposite directions, respectively.

Roll system A (see Figs. VII and VIII) comprises, preferably, two rolls A and A arranged at the top and bottom, respectively, of the works path, in position to operate upon the edges of the flanges or heads of the work-that is, the top roll A operates upon the upwardly-presented edges, and the bottom roll A operates upon the downwardly-presented edges.

Two feed-tables O and C are arranged at opposite ends, respectively, of the works path through the mill. Feed-table C is located adjacent to roll system B and is provided with any suitable number of suitablydriven feed-rollers C Feed-table C is located adjacent to roll system A and comprises any suitable number of suitably-driven feed-rollers C. The work is fed from one of the feed-tables to the other feed-table and is passed in opposite directions alternately.

Any mechanism or apparatus suitable for positively driving rolls B 3 of roll system B and rolls A and A of roll system A is provided, and in the case illustrated a trunnion A of the lower roll A of roll system A (see Fig. V) is operatively connected, by means of a suitable coupling or connection A, with a suitably-supported horizontallyarranged shaft a, and a trunnion A of the upper roll A is operatively connected, by means of a suitable coupling or connection A with a horizontal shaft a, arranged above and parallel with shaft to. Two spurgcars a a operatively mounted upon shafts a and a, respectively, and having a corresponding number of teeth, mesh with each other, and gear (6 meshes with a drivingpinion a, operatively connected in any approved manner with a suitably-supported and sui tably-actuated driving-shaft a. Hen cc rolls A and A are driven in opposite directions, respectively, as required. Another pinion a" (see Fig. IV) is operatively mounted upon driving-shaft a and meshes withaspurgear a operatively mounted upon ahorizontal shaft a suitably supported at one side of and a suitable distance from shaft a and operatively connected, by means of suitable couplings or connections a", with a spur-gear (4 arranged in line with shaft a and between said shaft (t and the trunnion Z) (see Fig. IV) of the lower roll B of roll system B, and any suitable couplings or connections b establish operative connection between said trunnion b and gear a. A spur-gear a is arranged above and parallel and meshes with spur-gear (0". Gear a is operatively connected, by suitable couplings or connections 11 with one of the trunnions b" of the upper roll B of roll system B. The arrangement and relative size of the gear-wheels employed in establishing operative connection between the engine-shaft and rolls A, A", B, and B are preferably such that the rolling or operating surfaces of said rolls shall be driven at the same speed or nearly so.

The two rolls B B are driven in opposite directions, respectively, as already indicated, and the upper roll B and the lower roll B are driven in the same direction as the upper roll A and lower roll A*, respectively, of roll system A, and hence the work can be fed from rolls A A to rolls B B or vice versa, according as the driving-shaft is actuated in the one direction or the other, and the two systems of rolls are preferably arranged in sufficiently close proximity to each other to enable the one system of rolls, as already indicated, to operate upon the work before the latter has left the other roll system.

The bottom roll B of roll system B is suitably supported from the two housings G G, arranged a suitable distance apart at opposite sides, respectively, of the works path, and suitably tied together and braced apart by rods G It is obvious that for work of the character indicated one or both of the horizontal web-reducing rolls must be adjustable vertically, and the upright side rolls D and D must be adjustable apart, and in the case illustrated the top roll B is adjustable toward and from the bottom roll B and it is also obvious that the said upright rolls D D and the top roll B are preferably adjusted simultaneously relative to the works path, and the said upright side rolls, in adjusting them apart simultaneously with the adjustment of the top roll, must be moved more rapidly than the top roll in order to avoid long crop ends and torn or cracked flange edges on the finished product.

I have found that good results are obtained by moving rolls D and D considerably (and preferably about thirty-three and one-third per cent.) faster than the movement of the top roll B during the adjustment of said rolls. It is obvious that the rolls at the commencement of the operation of the mill are set as required to accommodate the passage between them of the heated blank, and generally in the first pass of the work little more. is accomplished than a straightening of the blank.

I would here remark that if the rolls D D in their movement toward and from each other were traveling at the same rate as the travel of the top roll toward and from the bottom roll all of the said rolls will have traveled the same distance, and if, for instance, the rolls were set, say, for a finished product to have one-half inch thickness of web and a half-inch thickness of flange the top horizontal roll 13 would at the completion of the work be brought within that distance of the bottom horizontal roll and the side rolls D D would be brought within that distance of the ends of the horizontal rolls that form, as already indicated, the inner sides of the flanges or heads and web of the work. Now

if the top roll in its movement toward the bottom roll moves at the same rate that each of the side rolls moves in the latters movements toward each other, and if the top rolls travel during the rolling of the work is two and one-half inches it follows that after the top roll has traveled two and one-half inches all of the rolls B D D will have traveled the same distance and the top roll B will be three inches from the bottom roll l3 and the side rolls D D will be the same distance namely, three inches-from the flange-rollin g surfaces of the horizontal rolls B B Now it is evident that if an even reduction of all parts of the work is to be effected and the travel of the top and side rolls during the adjustment of the said rolls were the same, not only had no allowance been left for overcoming the distortion caused by the shear in cropping or cutting the blank, which is always much greater on the flanges than on the web, but long crop ends will be had on the finished product. This subject of long crop ends will be readily understood upon consideration of the fact that the flange-rolling surfaces of the horizontal rolls B B always rotate more slowly than the peripheral or web-rollingsurfaces of said rolls, because the flange-rolling surfaces of said rolls extend nearer to the axes of the rolls than the latters web-rolling surfaces, and if the side rolls D D are not caused to work more vigorously than the horizontal rolls the finished product will probably be found cracked or torn at the edges of the heads or flanges and agreat deal of material that should be equally or properly distributed between the web and flanges, and thereby increase the length of the perfect. product, will have been robbed by the web-rolling surfaces of the horizontal rolls to form extensive elongations of the web at the ends of the product, which elongations or crop ends have to be cut off a nd are not worth any more than scrap material, and if the edges of the flanges or heads are mutilated the whole product is practically worthless and forms very expensive scrap. Instead, therefore, of desiring only to reduce the flanges at the same rate as the web I have found it invaluable to reduce the flanges considerably faster than the web in order to make up for the much slower rate of delivery at the points of the horizontal rolls from which the edges of the flanges are delivered from the speed of those parts of the horizen tal rolls at which the web is delivered, and when the side rolls D D are adjusted toward each other more rapidly to the extent required than the movement of the top roll B relative to the bottom roll B it will be found that cracking or tearing of the edges of the flanges of the product will always be avoided. Hence by traveling the side rolls about thirtythree and one-third per cent. more rapidly in the setting of the said rolls than the top roll in the aforesaid t'wo-and-one-half-inch travel of the top roll during the red notion of the work there will be room for the admittance of, say,

at least three-eighths of an inch more material into each of the flanges and a further allowance of one-fourth inch to a side to accommodate any distortion of the blank or work, and the latter can be finished without torn or cracked edges and without long crop ends on the finished part. The additional material going into the flanges, it will be observed, is instrumental in adding to the length of the finished product (flanges as well as web) and is not robbed by the web for the objectionable purpose already indicated. Before rcf'erring to the mechanism employed for effecting the adjustment of said adjustable rolls B D D, I would remark that live surfaces should be present to all sides of the work, and consequently all of said rolls and the bottom roll B should be rotated positively and in unison. A suitable operative connection between each of said upright rolls D and D and the adjacent trunnion of the upper horizontal roll l3 comprises, preferably, a horizontal friction-disk (Z, (see Fig. IX,) operatively connected with the respective upright roll in any approved manner and preferably by the formation of interlocking lugs (Z and D (see Figs. IX and X) upon said frictiondisk and the roll, respectively. The upright roll is bored centrally, as at D, and the lugs D are formed upon the upper portion of the surrounding wall of said bore. The frictiondisk is therefore arranged within or extends into the upper portion of the bore through the roll, and the aforesaid interlocking lugs are arranged vertically to accommodate an up-and-down movement or adjustment of the friction-disk for the purpose hereinafter made more apparent. Said friction-disk (Z at its upper end is provided with an external annular friction-surface (Z that is frictionally engaged by a corresponding annular frictioncollar 13, formed upon or operatively connected with the adjacent trunnion of the upper horizontal roll B. By means of the vertical adjustability of disks (Z frictional engagement is maintained between said friction 1n embers and the friction-collars B upon vertically readjusting the upper horizontal roll B. The frictionallyengaging surfaces of members d and B are shown arranged horizontally. The friction-surface of each member 13 is formed upon the periphery of the said member, and the friction-surface of each disk (Z is formed upon the top of the said member (Z. The said arrangement of the frictionally-engaging surfaces of members (Z and B maintains a desirable adequacy in the cont-act between the said friction members during the adjustment of the vertical side rolls toward and from the horizontal rolls and during the adjustment of the top web-reducing roll toward and from the lower web-reducing roll, and the frietion'surface of disk (Z is preferably sufficiently wider than the frictionsurface of members B to maintain the entire width of the friction-surface of members B in contact with disk (Z in the different adjustments of the side rolls.

The means acting to elevate each frictiondisk d and maintain frictional engagement between said friction-disk and the engaging friction-collar 13 comprises, preferably, a piston E, (see Figs. IX and X,) that is secured to the said disk (Z in any approved manner. The piston extends downwardlyinto the chamberf, formed in the vertical cylindrical lug or cylinder F, formed upon the inner end of a horizontally-arranged slide H, and upon said cylinder the upright roll that is operatively connected with the aforesaid friction-disk d is mounted. A port or passage-wayf' for conducting water or fluid under pressure to chamberfis formed in any approved manner within the lower head of said cylinder and communicates with the aforesaid chamber. The fluid under pressure within said chamber acts to force the piston upwardly, and thereby causes the horizontal frictiondisk (Z to be held in frictional contact with the engaging friction-disk B and can, if desired, assist in supportingthe top roll 13. A stuifing-box F is provided around the piston at and supported by the upper end of cylinder F and prevents upward leakage of the fluid under pressure from chamberf. An improvement that constitutes a portion of the novel matter contained in this application consists in positively preventing piston E from rotating with the friction-disks borne by the said pistons, and thereby avoid wear of the packing or stuffing box that encircles the said piston. Each piston E is therefore prevented from turning by a key E, that engages a recess f formed in the upper end of the gland f of the stuffing-box F", formed between the said piston and the embracing cylinder, and the said key extends into a groove 0, formed in and arranged longitudinally of the piston. Member f" is bolted, as at f, or otherwise rigidly secured to the cylinder, and groove 6 is long enough to accommodate the vertical adjustability of the piston, and the frictiondisk that is carried by the said piston is rotatably mounted upon the piston and rests, preferably, upon a series of antifriction-rollers e suitably interposed between the under side of the disk and the upper side of a collar E formed upon the piston.

Each housing G, near its lower end, adjacent to the trunnion of the lower horizontal roll, (see Fig. 111,) is provided with a horizontally-arranged slideway G, engaged by a slide II, that carries one of the side rolls D. Slideways G G are arranged parallel, therefore, with the direction in which the side rolls D and D are adjustable-thatis,twohorizontally-movable slides II H are arranged or extend within the different housings, respectively, and each of the said slides carries a side roll that is supported from the said slide in any approved manner. Both slides H H are adjustable toward and from each other, and the two rolls D D are moved, therefore, toward or from each other. Each slide H is operatively connected at its central portion with a screw H arranged parallel with the slideways for the said slide. The said screw H engages, preferably, a correspondingly-threaded nut I, (see Fig, 1H,) rigidly secured within a recess '11, formed in the outer and central portion of the slide, and the nut-bearing portion of the slide consists of a piece that is suitably connected with, but has an adjustment independently of, the slides portion that carries a side roll, and the said outer slide member carries the thrustbearing for the said side roll, and the said thrust-bearing comprises two large vertical antifrict-ion-rollers J J, arranged a suitable distance apart at the outer side of and engaging the said side roll, and thereby sustaining the said roll againstlateral outward pressure during the rolls operation. The said sustain ing-rollers are supported from the outer slide member in any approved manner. 'Studs or bolts h are screwed into and rigid, therefore, with the inner or roll-bearing slide member and extend freely through the outer or rollerbearing slide member. The space h had between the two slide members accommodates the adjustment of the outer or roller-bearing slide member upon the said bolts or studs toward the inner or roll-bearing slide member. The adjustability of the roller-bearing slide member accommodates the taking up of any wear of the said roll and rollers and the maintenance of the rollers in contact with the roll, and-the roller-bearing slide member is retained in the adjustment required to hold its rollers in contact with the roll by nuts 7L2,

-mounted upon the studs or bolts at the outer end of the said slide member. The slide-operating screw H extends from the connected slide outwardly through a yoke-forming beam or piece G that connects together and is removably secured to the two legs of the housing that supports the said slide. Two collars H H that are fixed or formed upon the screw at opposite sides, respectively, of the said yoke, prevent endwise movement of the screw during the latters rotation. It will be observed by the construction hereinbefore described that the said screw H is not only instrumental in adjusting the connected slide H, and consequently the roll carried by the said slide, relative to the web-reducing rolls, but is also employed in adjusting the outer roller-bearing member of the said slide inwardly toward the inner or roll-bearing member of the slide for the purpose hereinbefore indicated. The means removably securing yoke G to the housing-legs comprises, preferably, studs 9, that extend through the yoke into the said legs, keys g, that extend through or partially through the said legs into or through the studs g, and nuts g mounted upon the studs at the outside of the yoke. The peculiar means hereinbefore described relative to the construction and operation of a slide H and connected parts is exceedingly simple and formsa portion of the novel matter contained'in'this application. It is obvious that each slide 1-1 and the roll supported thereby are adjust-ed toward or from the pair of horizontal rolls B B according as the connected screw is turned in the one direction or the other.

The upright screws L L (see Figs. I, II, and VI) engage correspondingly-threaded holes formed in the tops of housings G G and are arranged to form stops that limit the upward movement or elevation of the upper horizontal roll B. Saddles are interposed between the lower ends of said screws and the trunnions'of said roll, and one of the said-saddles is shown and marked Z in Fig.VI. Each trunnion of the top roll is supported in the same manner, and referring to Fig.VI, that shows one of the trunnions of the said roll, it will be observed that the support for the said roll comprises a half-box Z under each trunnion of the roll and resting upon upright bars 1*, that at their lower ends are supported from the one end of a vertically-tilting weighted lever Z whose weight Z somewhat more than counterbalances the said roll and any load carried by the roll.

My present invention involves, broadly, the particularly-illustrated mechanism employed in attaining the required greater reduction of the space between the side rolls than between the top and bottom rolls during the setting of the said rolls.

The mechanism employed for rotating screws L and H is shown to be as follows: Upon the upper end or portion of each screw L (see Figs. I, II, and VI) is operatively mounted a worm-wheel L, that meshes with a worm M, formed upon a suitably-supported horizontally-arranged shaft M. The upper ends of screws L are in the case illustrated angular in cross-section and extend through corresponding holes in the central portions of the engaging wheels L, so that the said screws are capable of endwise movement independently of the said wheels L without interrupting operative connection between the said wheels and screws. Upon the outer end of each screw H of a slide H (see Figs. I, III, and VI) is operatively mounted a worm-wheel II, that meshes with a worm hiformed uponasuitably-supported upright shaft 7%. Each shaft h is operatively provided at its upper end with a bevelgear it, that meshes with a bevel-gear m operatively mounted upon the shaft M, that is suitably driven in the one or other direction, according as screws L, and consequently the top roll B, are to be elevated or lowered.- By the construction just hereinbefore described it will be observed that all of the said screws L and H are operatively connected with one and the same shaft M and are consequently operated simultaneously. All the gears h andm correspond diametrically, and the screws L and H have the same have a diameter that is about threefourths of the diameter of the worm-wheels L that are instrumental in the operation of screws L. Hence in the case illustrated the more rapid endwise movability of screws 11 is due solely to the difference in diameter between wormwheels L and 11". Of course the members of the mechanism establishing operative connection between the reversible shaft M and screws H and L are preferably so arranged that the siderolls D D and top roll 13 shall be simultaneously shifted inwardly or outwardly, according as the said shaft is rotated in the one or the other direction, and the said rolls are setas required at the com m encement of the operation of the mill upon a predetermined size of blank to form the initial passage-waybetween the said side rolls and between the top and bottom rolls for the said blank, and the said adjustable rolls are adjusted as required to reduce the said space after each subsequent pass of the said blank.

Rolls A and A of roll system A (see Figs. 1, VII, and VIII) are of course arranged in the same vertical plane, and roll A has its trunnions resting in half-boxes A movable up and down-within the two upright housings A, that are arranged at opposite sides, respectively, of the works path. Half-boxes A rest upon and are consequently supported from any suitable numberof upright bars or rods A, (see Figs. V and VII,) operatively connected at their lower ends with vertically-tilting weighted levers Alwhose weights A somewhat more than counterbalance the weight of roll A and act in the direction required to elevate said roll. Saddles or blocks A" rest upon the trunnions of roll A above halfboxes A and suitably-operated screws A engage correspondiugly-threaded holes in the removable tops or caps of the housings and engage the upper surfaces of saddles A and not only limit the upward movement of roll A, but are instrumental in lowering the said roll against the action of weights A Roll A is adjustable vertically, therefore, as required preparatory to operating upon the edges of the heads or flanges of a predetermined piece of work. Screws A when they are rotated or turned are operated uniformly, and the mechanism employed for uniformly operating said screws comprises, preferably, two worm-wheels A A, operatively mounted on the different screws, respectively above the housings, and meshing with beveled Worms A, that are formed upon a horizontally-arranged shaft A, suitably supported above and from the housing-tops, and the arrangement of the said worms relative to the said gears A is such that the screws when the said shaft is rotated are simultaneously turned in the same direction.

A gage for regulating the width of the heads or flanges of the work is provided, and comprises, preferably, tw'o collars z' i, (see Figs. VII and V111,) mounted upon the roll A and roll A respectively, of roll system A at opposite sides, respectively, of the path of and arranged to engage the web of the work between the paths of the works flanges or heads. Each collar 1' is removably and operatively mounted upon the central portion of the respective roll. The collars end portions are diametrically smaller than the collars central portion and form the flange-edge-rolling portions of the roll. The collar is placed upon the roll by sliding it endwise onto the core of the roll, and the operative connection between the core and the collar consists, preferably, of any suitable number of keys Z", engaging opposing grooves 2' '6 formed in the collar and core, respectively. The rolls A and A with their collars it, are adapted for making a particular size or width of flanges, but any other size can be made by removing the said collars and substituting other collars required for the desired particular size. The size of the said collars t' 11 determines, as already indicated, the width or size of the products flanges. The collars assist also in straightening or removing irregularities in and in removing scales from the web of the work and are so shaped that they will engage and assist in finishing the inner sides of the flanges of the work. Two horizontal bars 0 are arranged at opposite sides, respectively, of and parallel with the lower fiange-edge-rolling roll A and below and transversely of the under side of the works path. Each bar 0 bears two rollers c c, supported from the bara suitable distance apart and arranged next below the path of opposite flanges, respectively, of the work. Between each pair of rollers c c is provided a bottom guide 0 arranged to be engaged by and guide the under side of the works web, and the said guide straddles and is removable upwardly from the bar that bears the said rollers. A guide 0 and rollers c c are therefore at each side of roll A*, and the two guides and the two pairs of rollers are instrumental in guiding the work to and from the flangeedge-rolling rolls. The meansremovably securing the housing-caps A to the legs of the housings comprises, preferably, studs A extending through the caps into the housinglegs, keys A extending through or partially through the said legs into or through the studs, and nuts A mounted upon the studs at the upper sides of the caps. By removing the housing-caps the rolls A A and guides o c can be readily removed for repairs and the placing of other collars upon the rolls.

I would have it understood that the details of construction relative to roll system A are desirable and valuable, and the said details to the extent pointed out in the claims form a portion of the novel subject-n1atter of this application. Feed-table 0 comprises any suitable number of feed-rollers C that are driven in any approved manner and as required to feed the work to and from the said roll system A from and to the said table. To remove scales from the work that can be readily removed by a tumbling process, the work when it is upon table 0 is automatically overturn ed any suitable number of times, and this process of tumbling the work is val uable also in assisting in the production of uniform work.

The particular means employed for overturning the work upon table 0 forms a por tion of the subject-matter claimed in this application,and comprises,preferably, (see Figs. XI and XII,) an oscillating shaft C that is suitably supported below and arranged horizontally and longitudinally of the table and is provided at two points "located a suitable distance apart with two arms C 0 extending transversely of the table and arranged to engage the work upon the table from below and throw the work laterally against the inclined uprights or backs G with which the table is provided. Each arm C of shaft G is arranged to operate between two adjacent feed-rollers of the table, so that said rollers shall not interfere with the location and operation of the said arm. Arms C in their normal or inoperative position are below the path of the work that in solid lines, Fig. XII, is shown resting upon the feed-rollers of the table and in dotted lines in same figure is shown thrown laterally against the inclined surfaces of backs G which inclined surfaces extend upwardly and outwardly from their lower extremities. Each arm 0 has its outer portion bent or extending upwardly, so that the said outer portion when the work is thrown against backs C", shall overlap the work and prevent the latter from rebounding back into the same position upon the table, and the inclined surfaces of members C are sufficiently far from a perpendicular that the work when the work-tumbling arms are returned below the table will fall with its opposite side upon the table. The said overturning operation is repeated, if desired, any suitable number of times and is very effectual in shaking scales from the work. The means for oscillating the work-overturning shaft 0 comprises, preferably, (see Fig. XIL) a gear O that is operatively mounted upon the shaft, preferably at some point between the two arms G G and the said gear meshes with a reciprocating rack O that is arranged transversely of the feed-table, between two adjacent feed-rollers of the said table, and attached in any approved manner to the rod 0 of the piston C of a hydraulic engine or motor C. In order to render the action of the extremities of arms 0 easy in overturning the work upon table C each of said arms at its outer end is provided with a wheel or roller C, that engages the work in the overturning operation and prevents the arm from holding onto or detaining the work during the said operation, and in order to render the overturning of the work still more positive and positively insure the overturning of the work during the overturning operation of the arms 0 one or more hydraulic cylinders 0 are provided. In the case illustrated two cylinders O are arranged a suitable distance apart and at right angles to table C at the rear of backs C Each cylinder C is provided internally with a piston O capable of reciprocating endwise of the cylinders chamber and actuated by fluid under pressure admitted to the cylinder in any approved manner, and the said piston has its rod 0 extending forwardly, and the said rod when actuated forwardly engages the lower portion of the work from the rear and participates in the overturning of the work and renders the overturning operation infallible. O designates a forward side guide for the work in the latters passage over table C and is of course arranged along the forward side of the works path. The forward or outer end of each rod or pushing device 0 is provided, preferably, with an upright arm 0 that is pivoted horizontally and transversely at C to the said rod, and at the rear of its axis is provided with a weight or poise C, that acts to retain arm 0 in the latters upright or normal position. The said Weight 0 normally straddles the rod C and engages the upper side of the rod, and the said arm cannot therefore tilt rearwardly beyond its normal position. The arrangement of parts is such that the said arm when in its normal position projects above the table far enough to engage upon being actuated forwardly the lower portion of the work thrown against backs C and participate in overturning the work upon the said table, and the work when overturned tilts the said arm forwardly and downwardly out of the way if the said arm is struck by the overturning work, and hence the said arm is not injured in case it is struck by the overturned work.

Two suitably-formed bottom guides or bearings Q Q (see Figs. I, II, III, and V1) for the work are provided at opposite sides, respectively, of rolls B B of roll system B at the under side of the path of the work. A suitablydriven roller j is arranged horizontally and transversely of the under side of the works path between roll system A and roll system B, and the guide Q is arranged between the said rollerj and roll B and extends into close proximity to the said roll B Guide Q is arranged between roll B and table 0 and extends into close proximity to the said roll. Said guides prevent downward displacement of the work in the latters passage to and from roll system B.

A top guide (not shown) for the work in the passage of the work from the roll system B to the roll system A is preferably provided for the purpose of preventing the work from being thrown upwardly out of its path in said passage; but as the top guide that I prefer to employ in the place indicated involves considerable mechanism and does not form any portion of the subject-matter claimed in this application and would if it were illustrated in this application confuse other combinations of parts hereinafter claimed I have not shown it in this application.

It is obvious that, as already indicated, the top web-reducing roll B and with it the flangereducing rolls D D are set preparatory to the first pass of a heated blank that requires reducing the distance apart required for the first pass, which distance forms the largest work-receiving passage between said rolls during the reducing operation upon the blank, and said passage is rendered smaller preparatory to each successive pass of the work, and the rolls after the work has had its finishing pass are again adjusted to enlarge the workreceiving passage between them as required for another blank.

Two side-guide-forming bars r 1' for the work (see Figs. I, II, III, and VIII) extend from roll system 13 to and beyond roll system A and are arranged at opposite sides, respectively, of the works path. Said guides rr extend into close proximity to the rolls of roll system B and a suitable distance beyond the outer side of roll system A into suitable proximity to table 0*. Guides 0' r are parallel, supported as will hereinafter appear, and adjustable apart simultaneously with the shifting of the rolls D and D toward or from each other and to the same extent,or approximately to the same extent, as the movement of the said rolls D D. Bars or guides T1" are pivoted vertically at or near their inner ends, as at r, to the different housings G G, respectively, at opposite sides, respectively, of the works path at any suitable point between roll systems A and B and preferably near the rolls of roll system B, and the said guides are capable of being swung horizontally 011 their pivotal bearings toward or from each other. Guides 2' 'r at the outer sides of and a suitable distance from rolls A A are operatively connected with each other for the purpose of simultaneously and equally moving the said guides in adjusting the guides apart. A desirable operative connection between the said guides comprises a horizontally arranged shaft 15, that extends transversely of and below the works path through lugs or flanges 0 formed upon and depending from guides r 0'. A right-handed screw if is formed upon the shaft 25 at the outer side of one of the said guides, and a left-handed screw 1- is formed upon the said shaft at the outer side of the other guide. Screws t and t are operatively engaged by two nuts 25 and t, respectively. The said nuts have bearing in and are arranged to slide endwise of lugs A formed upon the housings A and each of the aforesaid guides is operatively connected with one of the aforesaid nuts 7' in any approved manner, and in the case illustrated each of the aforesaid guide-lugs slidably embraces the shaft and engages a recess i formed in the inner end of the connected nut. Shaft 25, at

or near one end, has bearing in a stationary box A and a bevel-gear i is fixed upon the shaft at the outer end of the said box and meshes with a bevel-gear thoperatively mounted upon a shaft i that is arranged horizontally and at right angles to shaft t, that, it will be observed, therefore, is stationary so far as endwise movement is concerned. Shaft i is supported in any approved manner and extends from end to end of the machine. At one end of the machine the said shaft 25 carries the gear 25 and at the other end of the machine operatively bears a bevel-gear t", that meshes with a bevel-gear T", that is fixed upon shaft T, that is arranged horizontally below and extends transversely of the works path at the outer side of and a suitable distance from roll 13*. The aforesaid guides r 0' between roll system A and roll system B are engaged upon their outer sides by extensions or members 1' r of pistons r '2 (see Fig. 1,) arranged and operated as required to assist in supporting or moving the said guides 0'? toward each other simultaneously with the shifting of rolls B D D. Guides 7 7' are set as required for the works initial pass to accommodate the passage of the heated blank between them, and after the first pass the said guides are shifted toward each other preparatory to each pass to reduce the width of the passage-way between them and continue to properly perform their function of guiding and preventing lateral displacement of the work during the operation of the mill upon the work. One member 4' engages and is arranged at the outer side of and at right angles to one of the guides r, and the other member 1' engages and is arranged at the outer side of and at right angles to the other guide 9'. Each piston r is arranged to operate within a stationary horizontally-arranged closed chambered cylinder 9", that at its outer end has its chamberconnected with a pipe 9', employed for supplying water or other fluid under pressure to the piston in said cylinder, and thereby actuate the said piston in the direction required to move the engaging guides r laterally and inwardly. Both pipes r are connected with a main-supply pipe r by a valve-casing r and a valve 1' (see Fig. I) in said valve-casing interrupts and establishes communication between the main pipe 0' and the branch pipes r Valve 7* is operated in any approved manner and is opened to admit pressure or additional pressure to the said cylinders simultaneously or practically simultaneously with the inward shifting of rolls B D D. Fluid can be removed from within cylinders 7* through valved drain-pipes T with which said cylinders are provided. (See Fig. I.)

Two side-guide-formin g and work-straightening bars R R for the work (see Figs. I, II, III, and VI) are provided between table C and roll system B at opposite sides, respectively, of the Works path and extend into close proximity to rolls B B Bars R R are pivoted vertically at or near their inner ends, as at R, to the different housings G G, re-

spectively, at opposite sides, respectively, of the works path at any suitable point between the rolls of roll system B and table 0, and preferably near the rolls of roll system B, and the said bars are capable of being swung horizontally on their pivotal bearings toward or from each other. Bars R R, at the outer sides of and a suitable distance from rolls B B are operatively connected with each other for the purpose of simultaneously andequally moving the said bars in adjusting them apart. A desirable operative connection between the said bars comprises a horizontally-arranged shaft T, that extends transversely of and below the works path through lugs or flanges R formed upon and depending from bars R R. A right-handed screw T is formed upon the shaft T at the outer side of one of the said bars R, and a left-handed screw T is formed upon the said shaft at the outer side of the other bar R. Screws T and T are operative] y engaged by two nuts T and T respectively. The said nuts have bearing in and are arranged to slide endwise of lugs G, formed upon the housings G, and each of the aforesaid bars R is operatively connected with one of the aforesaid nuts in any approved manner, and in the case illustrated each of the aforesaid lugs R slidably embraces the shaft and engages a recess T formed in the inner end of the connected nut. Shaft T, at or near its end that extends adjacent to shaft i has bearing in a stationary box G and the bevelgear T is fixed upon the shaft at the outer end of the said box and meshes with a bevelgear t operatively mounted upon the shaft 25 as already indicated, and the said shaft T is therefore stationary so far as endwise movement is concerned. Shaft T is operatively provided with a worm-wheel T that meshes with a worm T formed upon a diagonally-arranged shaft T that extends into close proximity to shaft M, (see Figs. I, II, and V1,) and is operatively provided with a bevel-gear T that meshes with a bevelgear M operatively mounted upon the saidshaft M.

As already indicated, the side guides r r are adjusted about the same distance apart, preparatory to the initial pass of the work, as the side rolls D D, and the said rolls and guides are shifted inwardly simultaneously and to the same or approximately the same extent preparatory to each succeeding pass of the work during the reduction of the work. The straightening-bars R R are adjusted about the same distance apart as the side rolls and the aforesaid side guides preparatory to the initial pass of the work; but the outer or operating ends of the said bars are caused to approach each other more rapidly than the aforesaid side rolls and the aforesaid side guides during the operation of the machine upon the piece of work, so that the work is gradually straightened or kept perfectly straight during the operation of the machine.

The gradual straightening of the work will be found much more desirable than the straightening of the work by the application of force to effect the said straightening at one stroke. By the construction hereinbefore described it will be observed that the straighteningbars R R are operatively connected with the shaft M through the medium of the shaft T, that is operatively connected with the said bars, and the operative connection between the said shaft T and the aforesaid shaft M and the said guides r r are operatively connected with the said shaft M through the medium of the said shaft T and the operative connection between the said shaft T and the said guides. The bevel-gears of the operative connection between the shafts T and M correspond; but the worm and worm-wheel of the said operative connection have such diametrical dimensions and pitch relative to the diametrical dimensions and pitch of the worms and worm-wheels instrumental in the operation of the screws L that the said shaft T shall (the screws formed thereon being supposed to have the same pitch as the screws instrumental in the adjustment of the top roll B) result in the shifting of the straightening-bars more rapidly than the shifting of the side rolls, and if the side rolls D D are shifted about thirty per cent. more rapidly than the top roll, as desired, then the straightening-bars are shifted more than thirty per cent. more rapidly than the said top roll. In any case it is desired to shift the said bars whenever the side rolls are shifted and in a corresponding direction, so that the said bars whenever the work is passed between the said rolls to and between the said bars act, as required,to maintain the work perfectly straight or to straighten up the work if the latter requires subjection to any straightening operation. The bevel-gear t of the operative connection between the aforesaid shaft T and the side guides r r is sufficiently larger diametrically than the engaging gear T to result or assist in the shifting of the said guides (the pitch of the screws instrumental in the shifting of the said guides corresponding with or being less than the pitch of the screws employed in the operation of the aforesaid straightening-bars) less rapidly than the shifting of the said straightening-bars.

To recapitulate, therefore, the side guides r r are shifted at the same or about the same speed as the side rolls D D during the adj ustment of the adjustable rolls of roll system B, and the side guides are therefore shifted gradually and correspondingly or approximately correspondingly with the shifting of the side rolls, and the said guides and rolls are shifted more rapidly than the top roll B. The straightening of the work is gradual, and the gradual straightening, as already indicated, is easier and more eifectual. The

travel of the side guides is independent of the travel of the side rolls, and it is therefore possible at the beginning of the operation of the machine to have the side guides a sufficient distance apart to permit of an easy entrance of the work.

Vhat I claim is- 1. The combination of two reducing-rolls arranged at an angle to each other; a frictioncollar operatively connected with one of the said rolls; a friction-disk operatively connccted with the other roll and frictionally engaging the aforesaid friction-collar and movable independently and endwise of the said roll; a piston arranged to bear, at one end, against the said friction-disk and retain the latter in operative contact with the frictioncollar; means capable of exerting a continuous pressure upon the other end of the said piston, and means for prevent-ing the rotation of the piston with the connected frictiondisk, substantially as set forth.

2. The combination with two reducing-rolls arranged at an angle to each other; a frictioncollar operatively connected with one of the said rolls; a friction-disk operatively connected with the other roll and frictionally engaging the aforesaid friction-collar and movable independently and endwise of the said roll; a piston arranged to bear, at one end, against the said friction-disk and retain the latter in operative contact with the frictioncollar; a fluid-receiving chamber contiguous to the opposite end of the piston; means for conducting fluid under pressure to the said chamber; a stuffing-box formed about the piston, and means for preventing the rotation of the piston with the connected friction-disk, substantially as and for the purpose set forth.

3. The combination of two reducing-rolls arranged at an angle to each other; a frictioncollar operatively connected with one of the said rolls; a friction-disk operatively connected with the other roll and frictionally engaging the aforesaid friction-collar and adjustable independently and endwise of the roll; a piston grooved externally and longitudinally and arranged to hear, at one end, against the said friction-disk and retain the latter in operative contact with the frictioncollar; a fluid-receiving chamber contiguous to the opposite end of the piston; means for conducting fluid under pressure to the said chamber; a stuffing-box formed about the piston; a member projecting from a rigid member of the said box into the pistongroove, and the said groove being long enough to accommodate an endwise movement of the piston, substantially as and for the purpose set forth.

4. The combination of two reducing-rolls arranged at an angle to each other; a frictioncollar operatively connected with one of the said rolls; a friction-disk operatively connected with the other roll and frictionally engaging the aforesaid friction-collar and adjustable independently and endwise of the roll; a piston arranged to hear, at one end, against the said friction-disk and retain the latter in operative contact with the frictioncollar; means capable of exerting a continuous pressure upon the other end of the said piston; means for preventing the rotation of the piston with the connected friction-disk, and antifriction-rollers interposed between the piston and the said friction-disk, substantially as set forth.

5. The combination of a housing; a slideway formed within the said housing; a slide engaging the said slideway and consisting of two parts; a reducing-roll carried by one of the slides parts; a lateral bearing for the roll carried by the other slides part, and the lastmentioned part being adjustable independently of the roll-bearing part and operatively engaged by means for shifting the slide within the slideway, and means for securing the independently-adjustable part in the desired adjustment relaiive to the roll-bearing part, substantially as set forth.

6. The combination of a housing provided with a slideway; a slide engaging the said slideway and consisting of two parts; a reducing-roll supported from one of the slides parts; rollers sustaining the roll and carried by the slides other part, and the sustainingroller-bearingpartbeing adjustable independently of and toward and from the roll-bearing part; studs or bolts extending easily through the independently-adjustable part and supported from the roll-bearing part, and nuts upon the studs at the outer end of the said adjustable part, substantially as shown, for the purpose specified.

7. In rolling apparatus of the character indicated, the combination of the verticallyshiftable top roll; the bottom roll; the side rolls arranged at opposite ends, respectively, of the top and bottom rolls; means acting to elevate the top roll; screws for lowering the said top roll; stationary members having correspondingly-threaded holes engaged by the said screws; a suitably-driven shaft operatively connected with the said screws; two slides carrying the different side rolls, respectively, and shiftable toward and from each other; nuts fixed to the outer ends of the said slides; screws engaging the said nuts and held stationary so far as endwise movement is concerned; worm-wheels opcratively mounted upon the last-mentioned screws, and upright shafts intergeared with the first-mentioned shaft and provided with worms engaging the said worm-wheels, and the said lastmentioned worms and worm-wheels having such size relative to the size of the first-mew tioned worms and worm-wheels that the aforesaid slide-screws shall be rotated more rapidly than the top roll-shifting screws,substan tially as and for the purpose set forth.

8. In rolling apparatus of the characterindicated, the combination with the two flangeedge-rolling rolls arranged the one above the other; of two bars arranged at opposite sides, respectively, of the lower rollbelow the works path; rollers supported from the said bars and having the arrangement required to be engaged by the flanges of the work when the latter is passed between the rolls, and bottom guides removably supported from the said bars between the rollers upon the bars and arranged to be engaged by the under side of the works web during the works passage between the rolls, substantially as set forth.

9. In a rolling-mill of the character indicated, the combination with a table having at one side a back or backs C of a suitablyactuated device; mechanism or apparatus for overturning or throwing the work, that is upon the said table, laterally against said back or backs, and a suitably-actuated device, or devices, for en gaging the work thrown against said backs and instrumental in effecting the complete overturning of the work, substantially as set fort-h.

10. In a rolling-mill of the character indicated, the combination with the table having a back or backs O at one side of the works path over said table; of a suitably-actuated device, mechanism or apparatus for overturning or throwing the work, that is upon the said table, laterally against the said back or backs, and suitably-actuated rods or devices arranged to push upon the works side thrown against the said back or backs, substantially as and for the purpose set forth.

11. In a rolling-mill of the character indicated, the combination with a table over which the work is passed; of a suitably-actuated device, mechanism or apparatus for engaging the under side of the work that is upon said table and tilting the work laterally and upwardly, and a suitably-actuated device or devices, arranged to push upon the lower portion of the opposite side of the work when the latter is tilted as aforesaid, substantially as and for the purpose set forth.

12. In a rolling-mill of the character indicated, the combination with a table over which the work is passed; of a suitably-actuated device, mechanism or apparatus for engaging the under side of the work that is upon the said table and tilting the work laterally and upwardly, and any suitable number of suitablyactuated rods arranged to push upon the lower portion of the opposite side of the Work when the latter is tilted as aforesaid, and each of the said rods, at its free end, being provided with an upright arm pivoted transversely to the rod, and the said arm being free to tilt forwardly or outwardly and provided with means that acts to retain it in its upright or normal position and forms a stop for limiting the tilting of the arm in the opposite direction, substantially as and for the purpose set forth.

13. In a rolling-mill of the character indicated, the combination of a system of rolls arranged to operate upon the works web and upon the inner and outer sides of the flanges of the work, and another system of rolls arranged to operate upon the edges of the flanges of the work, and located a short distance from the first-mentioned roll system: of two side guides arranged at opposite sides, respectively, of the work, and the said guides being vertically pivoted at one end and extending between the two roll systems at opposite sides, respectively, of the works path; mechanism for simultaneously shifting the said guides upon their axes toward or from each other, and pressure-exerting devices arranged to bear upon the outer sides of the guides at an intermediate point, substantially as set forth.

14. In rolling apparatus of the character indicated, the combination with a verticallyshiftable top web-red ucing roll 13', the bottom web-reducing roll B and the two upright flange-reducing rolls D D arranged at opposite ends, respectively, of the top and bottom rolls; of means for vertically shifting the top roll; means for shifting the side rolls toward and fromeach other simultaneously with and more rapidly than the shifting of the top roll; two laterally-shiftable guides arranged at opposite sides, respectively, of the works path, and independent of the side rolls, and mechanism for shifting the said guides toward or from each other simultaneously, and at the same, or approximately the same, speed as the shift-ing of the aforesaid side rolls, substantially as set forth.

15. In rolling apparatus of the character indicated, the combination with the top web-reducing roll shiftable vertically; the bottom web-reducing roll; two upright flange-reducing rolls, arranged at opposite ends, respectively, of the top and bottom rolls and shiftable toward or from each other; of a suitablydriven shaft; screws instrumental in the shifting of the top roll and operatively connected with the said shaft; screws instrumental in the shifting of the side rolls and operatively connected with the said shaft, and two guides arranged at opposite sides, respectively, of the works path and supported independently of the side-rolls, and mechanism for simultaneously shifting the said guides toward or from each other and operatively connected with the aforesaid shaft, substantially as set forth.

16. In a rolling-mill of the character indicated, the combination of a system of rolls arranged to operate upon the works web and upon the inner and outer sides of the flanges of the work, another system of rolls arranged to operate upon the edges of the flanges of the work and located a short distance from the first-mentioned roll system; two side guides arranged at opposite sides, respectively, of the work at one side of the first-mentioned roll system; two laterally shiftable workstraightening bars arranged at opposite sides, respectively, of the work and at the opposite side of the said last-mentioned roll system, and mechanism for simultaneously actuating the said bars toward or from each other, sub stantially as set forth.

17. In a rolling-mill of the character indi-

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