US632181A - Apparatus for rolling beams, girders, &c. - Google Patents

Description

No. 632,!8I. Patented Aug. 29, 1899.

H. GREY.

APPARATUS FOR ROLLING BEAMS, GIRDEBS, 8w.

(Applicafion filed July 22, 1897.) (No Model.)

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No. .632,l8l. Patented Aug. 29, I899.

H. GREY. APPARATUS FOR ROLLING BEAMS, GIRDERS, 8w.

(Application filed July 22, 1897.) (No Model.) 9 SheetsSheet 2.

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N0. 632,18l. Patented Aug;29;,. |899.

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H.. GREY. APPARATUS FOR ROLLING BEAMS, GIRDERS, 81.0.

(Application m'ed July 22, 1897.)

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WITNESSES m: npnms PETER: OO..'PNOYO-LITHO.. wnsmuu'mm m a No. 632,!8l. Patented Aug. 29, 1899.

H. GREY.

APPARATUS FOR ROLLING BEAMS, GIRDERS, &c.

(Application filed July 22, 1897.) (No Model.) 9 Sheets-Sheet 5,

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Patented Aug. 29; "1899.

No. 632,l8l.

H. GREY APPARATUS FOR ROLLING BEAMS, GIRDERS, 8w.

(Application filed July 22, 1897.)

9 Sheets-Sheet 6,

(No Model.)

IIJMIWII 1 IN'VENTO I I l mfi WITNESSES T i A ATTORNEYS,

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v a Ju /Adrift W H. GREY. APPARATUS FOR ROLLING BEAMS, G IRDEBS, 81.0.

(Application filed July 22, 1897.) No Model.)

Patented Aug. 29, 1899.

No. 632.,l8l.

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APPARATUS FOR ROLLING BEAMS,'GIRDERS, 8w.

(Application filed July 22, 1897.) {No Model.) 9-SheetsSheet 8,

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' Patented Aug. 29, I899; H. GREY; v APPARATUS FOR ROLLING BEAMS, GIRDERS, &,c. w

(Application filed July 22, 1897.) (No Model.)

' 9 Shee ts -Sheet 9.

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UNITED STATES v PATENT I FFICE.

HENRY GREY, OF DULUTH, MINNESOTA, ASSIGNOR TO THE AMERICA UNIVERSAL MILL COMPANY, OF NEW YORK, N. Y.

APPARATUS FOR ROLLINGBEAMS, GIRDERS', &.c..

SPECIFICATION forming part of Letters Patent No. 632,181, dated August 29, 1899.

Application filed July 22, 1897. Serial No- 645 563. (N model.)

To all whom/it may concern:

Be it known that I, HENRY GREY, 'of-Duluth, St. Louis county, Minnesota, have invented certain new and useful Improvements in Mills or Apparatus for Rolling Metallic Beams, Girders, Columns, dac. and I.do hereby declare 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, 850.

One object of my present invention is to prevent the formation of crop ends or pro jecting elongations of the web upon the finished product in rolling work of the character indicated.

A further object is to prevent cracking or tearing of the flanges or heads of the'work or other mutilation of the work during the rolling operation.

Another object is to more satisfactorily and effectually guide the Work and prevent displacement of the work during the passage of the latter through the mill and to obtain a perfectly straight product.

A further object is to reduce the cost of a product of the character indicated and to successfully and accurately roll large and heavy blanks that cannot be successfully rolled by any mill or process heretofore devised.

With these objects in view and to the end of realizing other advantages hereinafter appearing, and particularly tothe end in View of rolling large and heavy Work accurately and economically, my invention consists in certain 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, and portions are broken away in this figure to reduce the latters size and to more clearly show the construction. Fig. II is a side elevation of the same, largely in central vertical section. Fig. IIIis a top plan of roll system 13, (employed in rolling the sides of the webs and heads or flanges of the work,) largely in horizontal section. Fig. IV is an elevation, partly broken away and in section, showing,

among other things, the operative connection between the top horizontal web-reducing roll and the vertical rolls employed to operate upon the outer sides of the flanges or heads of the work. Fig. V is a top plan of the apparatus or machinery employed in simultaneously driving all of the horizontal rolls of the mill. Fig. VI is an elevation of the roll system employed in operating upon the edges of the works heads'or flanges and showing also a portion of the machinery instrumental in driving the said rolls. Fig. VII is a view showing, detached, one of the screws employed in the adjustment of the top web-reducing roll, one of the screws employed in the adjustment of the upright flange-reducing rolls, and the screw employed in the adjustment of the device employed in gaging or controlling the width of the works flanges.

Fig. VIII is a side elevation, mostly in vertical section, of the mills feed-table, that is provided with Work-overturning apparatus. Fig. IX is a'transverse vertical sectionof the said table. Fig. X is a largely diagrammatic view showing the operative connection between the solenoid and a certain valve V, employed in my improved mill, and illustrating alsotheconnection in series of the said solenoid and the electric motor employed in the mills operation. Fig. XIis aside elevation, largely in vertical section, of cylinders and pistons employed in connection with a top guide for the work. Fig. XII is a vertical section of the casing containing the aforesaid valve V. Fig. XIII is an elevation of two side guides arranged at opposite sides, respectively, of the works path and engaged upon their outer side by silnultaneously-operated pressure-exerting devices shown in the said figure.

My improved apparatus or mill for rolling columns, beams, or girders comprises two systems of rollsone 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 anotherroll 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 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 received by the latter before it had left the former, and the rolling or operating surfaces 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 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 innersides of the works heads or flanges below the web. The two upright rolls D and D are arranged at opposite ends, 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 Figs. IV and IX. Rolls B B are of course rotated in opposite directions, respectively, and rolls D D also rotate in opposite directions,respectively.

Roll system A comprises two rolls Aand A arranged at the top and bottom, respectively, of the works path, in position to oper ate 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. I

Two feed-tables C and O 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 suitably-driven feedrollers 0 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 B 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. V1) is operatively connected, by means of a suitable coupling or connection A, with a suitably-supported horizontally-arranged shaft a, and a trunnion A of the upper roll A is operatively connected, by means of suitable coupling or connection A with a horizontal shaft a, arranged above and parallel with shaft a. Two spur-gears a a operatively mounted upon shafts a and a, respectively, and having a corresponding number of teeth, mesh with each other, and gear a meshes with a driving-pinion a operatively connected in any approved manner with a suitably-supported and suitably actuated driving-shaft a Hence rolls A and A are driven in opposite directions, respectively, as required. Another pinion a (see Fig. V) is operatively mounted upon driving-shaft a and meshes with a spur-gear a operatively mounted upon a horizontal 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 a arranged in line with shaft a and between said shaft a and the trunnion I) (see Fig. V) of the lower roll B of roll system B, and anysuitable couplings orconnections b establish operative con-. nection between said trunnion b and gear a A spur-gear a is arranged above and parallel and meshes withspur-gear a Gear a is operatively connected by suitable couplings or connections b 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 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 arranged in su fficiently 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. i

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 the top roll B must be adjustable vertically toward and from the bottom roll 15*, and the upright side rolls D and D must be adjustable apart, and it is also obvious that the said upright rolls D D and the top roll B must be adjusted simultaneously relative to the'works path, and I have discovered that 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.

It is well known by those skilled in the art that the extensions of the web in the finished product beyond the ends of that portion of the product that is practically perfect and callec crop ends in the trade are cut off and worth no more than scrap material, and

it will therefore be observed that any device or means instrumental in reducing the length of the crop ends from several feet to a few inches is of no inconsiderable importance. Crop ends should be avoided, if possible, and this is practically accomplished in the mill that forms the subject-matter of this application, as will hereinafter more fully appear.

I have found that the best results are obtained by moving rolls D and D about one and one-fourth times as fast as 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 the 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 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 B 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. Nowif the top roll in its movement toward the bottom roll moves at the same rate that each of the side rolls move 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 B and the siderolls D D will be the same distancenamely, three inches-from the flange-rolling 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 adjustments of the said rolls is thesame, not only has 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 revolve more slowly than the peripheral or web-rolling surfaces 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 rollsDDare 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 a great deal of material that should be equally 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 and 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 reducethe 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 horizontal 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 twenty-five per cent. more rapidly in the setting of the said rolls than the top roll in the aforesaid two-and-one-half-inch travel of the top roll during the reduction 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 webfor the objectionable purpose already indicated. Before referring to the mechanism employed for effecting the adjustment of said adjustable rolls B, D, and D, I would remark that live surfaces should be presented to all sides of the work, and consequently all of said rolls vand the bottom rollB should be rotated posi tively 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 B comprises, preferably, a horizontal friction-disk d, (see Figs.

III and IV,) operatively connected with the respective upright roll in any approved manner and preferably by the formation of interlocking lugs 61 and D upon said friction-disk and the roll, respectively. The upright roll is bored centrally, as at D (see Fig. IV,) and the lugs D are formed upon the upper portion of the surrounding wall of said bore. The friction-disk 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 beveled or conical friction-surface (1 that is frictionally engaged by a corresponding annular beveled or conical friction-disk B formed upon or operatively connected with the adjacent trunnion of the upper horizontal roll B.

The two friction-disks B are reversely arranged and engage the inner or oppositelylocated extremities, respectively,- of the different friction-disks d cl, respectively, so that the two upright side rolls D D shall be driven in opposite directions and in the direction necessary to render said upright rolls instrumental, as required, in feeding the work between them and between the horizontal rolls. By means of the vertical adjustability of disks d frictional engagement is maintained between said friction members and the friction-disks B upon vertically readjusting the upper horizontal roll B, that, it will be observed, is supported from the said disks. The means acting to elevate each friction-disk d and maintain frictional engagement between said friction-disk and the engaging frictiondisk B comprises, preferably, a piston E, (see Fig. IV,) that is secured to the said disk din any approved manner. The piston extends downwardly into the chamber f, formed in the vertical cylindrical lug or cylinder F, formed upon the inner end of a horizontallyarranged slide H, and upon said cylinder the upright roll that is operatively connected with the aforesaid friction-disk dis mounted. A port or passage-wayf for conducting water or fluid under pressure to chamber fis 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 friction-disk d to be held in frictioual contact with the engaging friction-disk provided with suitably-constructed slideways G designed for slides H and arranged parallel, therefore, with the direction in which the side rolls D and D are adjustable-that is, two horizontally-movable slides 1-1 H are arranged at the outer sides of the diflerent housings, respectively. One of said slides carries roll D, and the other slide carries roll D. 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 according as slides H H are actuated toward or from each other. Each slide H is provided, preferably, with two screws H arranged parallel with the slideways for said slide and a suitable distanceapart and operatively connected with the slide in any approved manner. Screws I-I engage, preferably, correspondinglythreaded nuts I, confined or held stationary within recesses 9, formed in the outer sides of the aforesaid slideway-forming housing-brackets, and by this construction it is obvious that each slide II and theroll supported thereby are adjusted toward or from the pair of horizontal rolls B, B according as the engaging-screws are turned in the one direction or the other. Each slide II is provided, also, with a thrust-bearing J for the upright roll, which bearing is constructed in any approved manner.

The upright screws L L-(see Figs. I, II, and IV) 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 Z are shown interposed between the lower ends of said screws and the trunnions of said roll. By this construction it is obvious that upon turning screws L in the direction required to elevate them the upper roll B will be elevated by the action of the fluid under adequate pressure upon pistons E, and upon turning the said screws in the opposite direction the said roll will be lowered against the said pressure.

My present invention involves not only the travel of the side rolls D D more rapidly than the movement of the top roll B in the simultaneous adjustment of said rolls, but embraces, also, any device, mechanism, or apparatus whereby the screws L, instrumental in adjusting the top roll vertically, and the screws H3, employed in adjusting apart the side rolls, are operatively connected together in such a manner that they are shifted endwise simultaneously, and at the same time the side-roll-adj ustin g screws are shifted more rapidly, so that rolls D D shall be moved more rapidly than roll B in setting said rolls, and to this end in the case illustrated the threads of screws H have twenty-five per cent. more pitch than the threads of the screws L, as

ed 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 withoutinterrupting operative connection between the said wheels and screws. Upon the outer end of each screw H of a slide 11 (see Figs. I, III, and IV) is operatively mounted a bevel-gear 7L2, that meshes with a bevel-gear 7L operatively mounted upon a suitably-supported horizontally-arranged shaft h. The connection between gears k and screws H is such also that the screws can shift endwise independently of the engaging gears without interrupting operative connection between the screws and gears. Shaft M is intergeared, as at m, (see Fig. 1,) with the reversibly rotatable shaft m of an electric motor m Each shaft h is operatively provided, also, with a worm-wheel it, that meshes with a worm h,

formed upon a suitably-supported upright.

shaft if, that is intergeared at its upper end, as at lbs, with the shaft M. By the construction just described it will be observed that all of the said screws L and H are operatively connected with one and the same motor-shaft m and are consequently movable in unison. All the gears and worm-wheels of the mechanism that establishes operative connection between shaft M and the said screws correspond diametrically, and the worms of the said mechanism correspond in diameter, so that all of the screws are rotated at the same speed when they operate. Hence in the case illustrated the more rapid endwise movability of screws H is due solely to the greater pitch of the threads of the said screws. Of course the members of the mechanism establishing operative-connection between the reversible shaft m and screws H and L are so arranged that the side rolls D D and top roll B shall be simultaneously shifted inwardly or outwardly, according as the said shaft is rotated in the one or the other direc-' tion, and the said rolls are set, as required at the commencement 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. I and 11) 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 number of upright bars or rods A, operatively connected at their lower ends with vertically-tilting weighted levers A whoseweights A some= what 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 tops 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 beveled gears A A, operatively mounted on the different screws, respectively, above the housings and meshingwith beveled gears A", that are operatively mounted upon a horizontally-arranged shaft A, suitably supported above the housings, and the arrangementof said lastmentioned gears relative to 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, a collar 2', (see Figs. I and 11,) mounted upon the bottom roll A of roll system A at the under side of the path of and arranged to afford bearing for the web of the work between the paths of the works flanges or heads. The central portion of roll A is provided, preferably, with an annular groove or recess A", and collar 2' is mounted upon roll A within the said recess. Said collar, therefore, affords bearing, as alreadyindicated, for the work during the operation of rolls A and A The side walls of recess'A prevent endwise displacement of the collar upon the roll A and the portions of the roll A at opposite sides, respectively, of said recess are instrumental in operating upon the edges of the heads or flanges of the work. One of the rolling portions of roll A is keyed, as at A (see Fig. 11,) or otherwise removably secured to the remaining portion of the roll to accommodate the mounting of collar i upon the central reduced portion of .the roll, and of course said keyed part of the roll is not applied until after the collar has been placed in position. Collar 1) is adjustable vertically, as required, to enableit to be lifted or elevated a suitable distance after each pass of the work, and thereby render roll A capable of operating, as required, upon the upwardly-presented edges of the works flanges or heads. The vertical ad justability of collar 1' is obtained, preferably, by having the collars hole i, through which the central portion of roll A extends, elongated vertically, as shown in Fig. 11. Roll A is supported from housings IIO A in any approved manner, and collar 2' is supported,preferably,bya saddle i arranged below the collar and having its upwardlyfacing surface arranged circumferentially of and concentrically with the collar, and antifriction-rollers 11 are interposed between said surfaces of the saddle and the lower external surface of the collar that turns upon said rollers during the operation of the mill. Saddle i has two sides 13 01 arranged at opposite ends, respectively, of the collar, and the antifriction-rollers t extend between and are supported from said sides. The means employed for adjusting or moving collar 2' vertically comprises, preferably, an upright screw 7;, that extends through and engages a correspondingly-threaded nut i that is located a suitable distance below saddle 2' and rendered stationary in any-approved manner. A suitably-supported worm-wheel t is operatively connected in such a manner-for instance, by feather and groove i -with screw that the latter can move endwise independently of the said wheel 2' withoutinterrupting perative connection between said wheel 1' and said screw '6 Torm-wheelt' meshes with a worm i, that is formed upon a suitably-supported horizontally-arranged shaft 6 (see Figs. I and IL) and shaft i is intergeared, as at i with a suitably-supported shaft 2' that extends diagonally to shaft M and is intergeared, as at t, with the said shaft M. It will be observed, therefore, that screw i is operatively connected with the motor-shaft m, so that the setting or adjusting of collar 1' preparatory to each pass of the work for the purpose, as' already indicated, of gaging or controlling the width of the works flanges is effected simultaneously with the adjustment of the adjustable rolls of roll system 13. Worm-wheel 2' worm i and gears i 1' correspond diametrically with the worm-wheels, worms, and gears that officiate in establishing operative connection between shaft M and screws L H so that screw i is rotated at the same speed as screws II and L. Therefore if collar 1 is to be shifted about one-half as far as the top roll B of roll system B, as desired, it follows that the threads of screw 1' (see Fig. VII) have fifty percent. less pitch than the threads of the screws L employed in adjusting the said roll. The said collar or cylinder 1' will therefore in shifting rolls B and D D rise one-half as much as the said roll B lowers, and this is desired inasmuch as the position of the said member 1 determines the width of the works flanges. As the rolls B B dig into the web of the blank or work the distance between the upper side of the works web and upper roll A is increased in proportion, and this being the case, although there is no collar or cylinder '5 on said roll A, still as the work that is being operated upon can be turned at will, as will hereinafter more fully appear, it follows that the distance between member iand roll A for the initial pass of the work is determined by the position of the roll Arelative to the position of the said member t', and this distance is increased or decreased for the works initial pass by raising or lowering the said roll A, according as wider or narrower flanges or heads upon the finished product are desired. The lowering of the top roll B of roll system B will result in raising member'ione-half of the distance traveled by the said roll B, and member 7 will consequently gage or control the width of the works flanges or heads after the mill has commenced to operate. The function performed by membert' is therefore primarily the gaging of the width of the ,works heads or flanges, and as the work is turned over at suitable intervals, as will presently appear, it follows that the edges of the flanges of the finished product will be even. Two rollers j and j, (see Fig. 11,) arranged transversely of the lower side of the works path at opposite sides, respectively, of roll A are instrumental in guiding the work to and from said roll system A, and the roll j, that is located between the said roll system A and table C is a feed-roller that is suitably driven in the direction required to feed the work to and from the said roll system from and to the said table. The said table comprises any suitable number of feed-rollers 0 as already indicated, and the feed-roller at the inner end of the table is operatively connected by means of sprocket-wheels and chain C with feedroller j. Operative connection between the feed-rollers of the table is established, preferably, by shafting and gears C, suitably driven to feed the work in the direction required. (See Fig. I.) 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 overturned any suitable number of times, and this process of tumbling the work is valuable also, as already indicated, to insure adequate operation on all of the edges of the works flanges in roll system A. i

The means employed for O"Gll3l11llll1g' the work upon table 0 comprises, preferably, (see Figs. VIII and IX,) an oscillating shaft 0 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 (J 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 O, with which the table is provided. Each arm 0 of shaft 0 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 said arm. Arms 0 in their normal or inoperative position are below the path of the work that in solid lines, Fig. IX, 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 C whichinclined surfaces extend upwardly and outwardly from their lower extremities. Each arm C has its outer portion bent or extending upwardly, so that 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 O 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. IX,) a mutilated gear or toothed sector 0 that is operatively mounted upon the shaft, preferably at some point between the two arms 0 C and said sector meshes with a reciprocating rack O, that is arranged transversely of the feed-table'between two adjacent feed-rollers of said table and attached in any approved manner to the rod C of the piston C of a hydraulic engine or motor 0 Two suitably-formed bottom guides or bearings Q Q (see FigsLI and II) 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. Guide Q is arranged between roller j 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 down ward displacement of the work in the latters passage to and from roll system B. A top guide T for the work in the passage of the work from the roll system B to the roll system A is provided (see Figs. I and II) for the purpose of preventing the work from being thrown upwardly out of its path in said passage. Said guide consists, preferably, of an approxi matelyhorizontally-arranged heavy plate suspended over and in close proximity to the path of the upper side of the works web and between the paths of the works flanges. Guide T is located between the two roll systems and in close proximity to roll B of roll system B. Guide T is movable vertically to accommodate its adjustment correspondin gly and simultaneously with the vertical adjustment of the top web-reducing roll B. To effect the movement of guide T simultaneously with and in the same direction as the vertical movement of roll B and to prevent any injury to any parts by any upward blow received by said guide from the work in the passage of the work below the guide, the following construction is provided: The guide at or near its central portion is suspended by means of a rod or bar T, that depends from one end of a vertically-tilting weighted lever T and is attached at its lower end to the guide in any approved manner. Lever T is supported from a vertically-movable slide T that extends between and engages vertical slideways (not shown) formed upon housings G G. The said lever is f ulcrumed, therefore, i

to any suitable member that is rigid with or supported from the said slide, that near each end is suspended fronra piston T arranged to operate within and endwise of an upright stationary cylinder T having closed ends. Two upright cylinders T T are provided, therefore, over opposite ends, respectively, of slide T and the latter is suitably attached to the piston-rods T depending from the pistons within said cylinders. Each cylinder T (see Fig. XI) is provided with two lateral ports T and T at the upper end and the lower end, respectively, of the cylinder. The lower port T connects the lower extremity of the cylinders chamber with a pipe or pressure line T employed in supplying water or other fluid under adequate pressure into said chamber below the piston in said chamber. The fluid-pressure upon pistons T from below acts to lift guide T, and I would here remark that the poise T with which lever T is preferably provided, connterbalances,preferably, the aggregate weight of the guide T and the connection between the lever and the said guide. Adjacent to each cylinder T is provided another stationary upright cylinder T that is preferably integral with the said cylinder T and is closed at its lower end and open at its upper end. A piston T is arranged to operate within and endwise of each cylinder T and the latter at its lower end is provided with a lateral port T that is required in the establishment of open relation between the lower extremity of the chamber of the said cylinder and the port T of the adjacent cylinder T The cylinders T above the pistons therein, the cylinders T below the pistons therein, and the connections between ports T and T are supplied with water or other suitable fluid from any suitable number of supply-pipes T Each piston T has its rod T extending downwardly below the cylinder and operativelyconnected with an arm Z, projecting laterally from and rigid with the saddle Z upon the adjacent trunnion of the top web-reducing roll B. The said piston T IIO and consequently the guide T, will therefore move downwardly correspondingly with any downward travel of the top web-reducing roll B. It is obvious that, as already indicated, the top Web-reducing roll B and with it the flange-reducing 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 thelargest work-receivin g 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. It follows, therefore,that the works top guide T must be correspondingly set preparatory to every pass of the work. The operative connection of pistons T with the saddles Z on the top roll B lowers the said pistons T as already indicated, upon lowering the said roll B, and water is thereby displaced from below said pistons in cylinders T into the upper ends of cylinders T through the connections between said cylinders, and the water forced into said cylinders D depresses the pistons T .top roll B during said resetting of the rolls by the pressure upon them by the horizontal friction-disks d as soonas the screws L are backed up lifts pistons T ,permits the displacement of water from the upper ends of cylinders T into cylinders T and accommodates the elevation of pistons T by the power from the pressure-line, and thereby results in the corresponding elevation of the works top guide '1. It will therefore be observed that said guide is adjusted simultaneously and uniformly with the adjustment of the top roll 13. Itis desirable to lock the said roll and the said guide in the desired adjustment, so that they cannot be displaced vertically during the pass of the work, and I interpose, therefore, a valve V (see Figs. Iand XII) in the line of the pipe connection between cylinders T and T which valve controls continuity in the passage-way between each cylinder T and the adjacent cylinder T. when therefore said valve is closed, water cannot pass between the said cylinders, and the said top roll and the said guide are locked against vertical displacement, and when the said valve is open water can pass between the said cylinders and accommodate the vertical adjustment of the said guide and roll. It is obvious therefore that valve V should be open simultaneously or practically simultaneously with the commencement ofthe endwise shifting of screws L and should be closed simultaneously or practically simultaneously with the cessation of the endwise movement of the said screws. Before proceeding to describe the mechanism preferably employed for operating valve V, I would remark that said valve is arranged, preferably,in a valve-casing V, having a port V connected by means of a T V with the two pipes V V. One of said pipes V connects with the port T of one of cylinders T and the other pipe V is connected with the port T of the other cylinder T. The seat V for the valve is formed at the inner end of said port V and the latter at its inner end connects with a passage-way V, extending through the valve-casing and having its 0pposite ends connected with different pipes V V respectively. One of pipes V connects and the other pipe V connects with the port T of the other cylinder T By this construction it is obvious that when the valve is shifted off its seat open relation is established between cylinders '1 and T and said communication is interrupted when the valve is seated.

The valve V for establishing and interrupting communication between the chambers of adjacent cylinders T and T has a stem V extending outside of the valve-casing and operatively connected at its outer end (see also Fig. X) with a tilting lever V at any'suitable point between the opposite ends of the lever, that is fulcru med at one end, as at V to any suitable support and at its opposite end is operatively connected by means of a rod or suitable connection V with the endwisc-movable core or cores of a solenoid V A suitably-applied spring V acts to retain the core or cores of the solenoid in their outer or normal position and also acts to retain the valve V in its closed position, wherein the chambers of adjacent cylinders T and T are not in open relation with each other and water cannot flow between said chambers, as already indicated. However, when an electric current traverses the solenoid the core or cores of the solenoid are moved against the action of the said spring and move lever V in vated or lowered. An electric current is,

caused to traverse the solenoid therefore in any approved manner simultaneously or practically simultaneously with the commencement of the operation of screws L L, so that the said cylinders shall be placed in open relation with each other simultaneously or practically simultaneously with the commencement of the operation of said screws, and the said solenoid'is rendered inactive in any approved manner simultaneously or practically simultaneously with the cessation of the operation of screws L L, so that communication between the said cylinders shall be interrupted simultaneously or practically simultaneously with the cessation of said screws operation. A desirable manner of simultaneously or practically simultaneously effecting operation of the solenoid and electric motor, and thereby move valve V simultaneously with the commencement of the said screws operation, involves the arrangement of the solenoid and motor in series in one and the same electric circuit, as shown in Fig. X, and the electric current is controlled and reversed at pleasure by' any approved controller havin g a currentreverser incorporated therein. Devices for controlling an electric current and reversing the latters direction and the placing of electroreceptive devices in series are so well understood by those skilled in the art that the largely diagrammatic illustration in Fig.

X will be readily understood, and further description or illustration thereof in this application is considered unnecessary. The con nection of the electric motor and solenoid in series is important therefore, because a disabling of either one of said electroreceptive devices would at once interrupt the flow of electric current and simultaneously or practicallysimultaneou'slyinterrupt the operation of the other electroreceptive device, and consequently there is no liability of the operation of the screws when valve V is closed, nor is there any liability of the closing of the valve while the screws are operating.

Two side guides a" 'r for the work (see Figs. I, II, and III) extend from roll system B to and beyond roll system A and are arranged at opposite sides, respectively, of the work. Said guides r r extend into close proximity to the rolls of roll system B and are cut away at the top, below roll A, as at r, to accommodate the location and operation of the said roll A. Guides 4" r extend a suitable distance beyond the outer side of roll system A into suitable proximity to table 0*. Guides r 0' are parallel, supported in any approved manner, adjustable or movable laterally, and operatively connected by suitably-applied bars, rods, or devices r at points'between roll system B and roll system A with slides H and II, respectively, and hence said guides are moved apart or toward each other according as rolls D and D are shifted toward or from each other and simultaneously with and to the same extent as the movement of the said rolls D D. The said guides r r between roll system A and table 0 are engaged upon their outer sides by extensions or members r r of pistons r 0", (see Fig. 1,) arranged and operated as required to move the said ends of guides r 4 toward each other simultaneously with the shifting of rolls B D D and guide T. Guides 0" r are set as required for the works initial pass to accommodate the passage of the heated blank be-,

tween them, and after the first pass the said guides are shifted toward eachother preparatory to each pass to reduce the width of the passage-way between them and continue to properly perform their functions of guiding and preventing-lateral displacement of the work during the operation of the mill upon the work. One member r engages and is arranged at the outer side of and at right angles to one of the guides r, and the other member r engages and is arranged at the outer side of and at right angles to the other guide r. Each piston r is arranged to operate within a stationary horizontally-arranged closed chambered cylinder rithat at its outer end has its chamber connected with a pipe '2', employed for supplying water or other fluid under pressure to the piston in said cylinder, and thereby actuate the said pistonin the direction required to move the engaging guide 1' laterally and inwardly. Both pipes r are connected with a main supply-pipe r by a valve-casing r and a valve 4" (see Fig. I) in said valve-casing interrupts and establishes communication between the main pipe 0 and the branch pipes r. The construction of said valve and valve-casing is substantially the same as the construction of valve V and valve-casing V, and the stem r of valve 1" is operatively connected with a vertically-tilting lever r ,that is fulcrumed at one end, as as r to anyv suitable support and has its opposite end connected with the core or cores of a solenoid 7', that is electrically energized in any approved manner and may be connected in series with the solenoid V and the motor m Valve 0" may, however, be operated in a different manner, if desired, and suffice it to state, therefore, that any suitably-operated valve for controlling the supply of pressure to cylinders r is employed and is open-ed to admit pressure or additional pressure to the said cylinders simultaneously or practically simultaneously with the inward shifting of rolls B D D and guide T. The arrangement of parts is such that when an electric current traverses solenoid r valve 1' is opened against the action of means, such, for instance, as a spring 4", acting in the direction required to retain the valve seated. Flu-id can be removed from within cylinders 1" through valved drainpipes 0, with which said cylinders are provided. (See Fig. I.)

Two side guid es RRfor the work (see Figs. I, II, III, and XIII) are provided between table 0 and roll system B at opposite sides, respectively, of the works path and extend into close proximity to rolls B B Each guide R is supported from the adjacent slide H in any approved manner, and said guides are therefore moved toward or from each other according as the side rolls D and D of roll system B are shifted toward or from each other. In the case illustrated each guide R is supported at or near its inner end at R (see Fig. III) in any approved manner from the supporting-slide H, but at its outer end is supported from the slide through the instru mentality of an endwise-movable bar or .rod R (see Figs. III and XIIL) that is supported from and is movable with as well as independently of the slide. Said bar extends through a suitably-constructed stationary chambered cylinder R that is closed at its ends and rigid with a lug G formed upon the adjacent housing G. The said bar extends easily through said lug and loosely through a lug H formed upon the slide. The outer end of the bar is round and screwthreaded, and two nuts R R are mounted upon the bar at opposite sides, respectively, of the said lug H and farther apart than the opposite ends of the saidlug. The bar within cylinder R is provided with a piston R arranged to move endwise of the cylinders chamber and actuated inwardly, as required to press the attached guide R laterally and inwardly by water or fluid under pressure constructed three-way valve R conducted into the outer end of the cylinder by a pipe R that communicates with the outer end of the cylinders chamber. Nut R constitutes a stop that limits the outward movement of the bar independently of the slide, and consequentlythe bar in its normal position has the said nut R engaging the lug H of the slide and is shifted inwardly with the slide in moving the side-rolls toward each other. The space between lug I1 and the outer nut R of the bar is the distance that the bar can move independently of the slide, and hence the bar when under endwise pressure by the fluid introduced into cylinder R will press the attached guide laterally and inwardly, and the two guides R R are pressed inwardly or toward each other during the last pass of the work to restrict the passage-way between the said guides at bars R R to approximately the width of the finished prod-- uct, (measuring widthwise of the web,) so as to insure that the finished product will practically be perfectly straight. It follows, therefore, that bars R R are located at the mills end at which the finished product is delivered, and the finishing pass is preferably from roll system A to roll system'B, as in the case illustrated.

The two pipes R leading to the two cylinders R are connected with a main supplypipe R that is provided with any suitablycapable of establishing and interrupting communication between cylinders R and pressure-line R and capable also of draining the said cylinders. The construction of valves of the character indicated is so well known that detailed description or illustration thereof is not considered necessary in this application.

What I claim is 1. In rolling apparatus of the character indicated, the combination of the positively-rotated top and bottom rolls, and one of the said rolls being shiftable toward and from the other roll; the. two positively-rotated upright side rolls arranged at opposite ends, respectively, of the top and bottom rolls and shiftable toward and from each other, and means whereby the said adjustable rolls are shiftable simultaneouslyand whereby the space betweenthe side rolls is decreased or increased more rapidly than the space between the top and bottom rolls, substantially as and for the purpose set forth.

2. In rolling apparatus of the character indicated, the combination with the positivelyrotated top and bottom web-reducing rolls; the positively-rotated flange-reducing side rolls; mechanism for shifting oneof the webreducing rolls toward the other web-reducing roll; other mechanism for shifting the side rolls toward the web-red u cin g rolls,and means whereby the last-mentioned shiftin g mechanism is caused to shift more rapidly than the first-mentioned shifting mechanism, substantially as and for the purpose set forth.

3. In rolling apparatus of the character indicated, the combination of the positively-rotated top and bottom rolls B B, the two positively-rotated vertical or upright side rolls arranged at opposite ends, respectively, of the top and bottom rolls, means for vertically shifting the top roll, and means for more rapidly shifting the side rolls toward orfrom each other according as the top roll is lowered or elevated, substantially as and for the purpose set forth.

4. In rolling apparatus of the character i11- dicated,t-h.e combination of positively-rotated top and bottom rolls, the positively-rotated side rolls, mechanism for shifting the top roll toward the bottom roll, other mechanism for shifting the side rolls toward the top and bottom rolls, and means whereby the last-mentioned shifting mechanism is caused to shift more rapidly than the first-mentioned shifting mechanism, substantially as and for the purpose set forth.

5. In rolling apparatus of the character indicated, the combination of the positively-rotated vertically-shiftable top roll B; the positively-rotated bottom roll B the two positively-rotated vertical or upright side rolls arranged at opposite ends, respectively, of the top and bottom rolls and shiftable toward and from each other, and mechanism or apparatus whereby all of the said shit table rolls can be moved inwardly or outwardlysimultaneously and whereby the side rolls, when the said adjustable rolls are shifted, are caused to travel about twenty-five percent. more rapidly than the top roll, substantially as and for the purpose set forth.

6. In rolling apparatus of the character indicated, the combination of the positively-rotated vertically-shiftable roll 13; the positively-rotated bottom roll B the positivelyrotated side rolls arranged at opposite ends, respectively, of the top and bottom rolls and shiftable toward and from each other; means actingto elevate the top roll; screws forlowering said top roll; stationary members having correspondingly-threaded holes engaged by said screws; slides carrying the side rolls; screws connected with and arranged to shift said slides and having threads that have a greater pitch than the threads of the top-rolladjusting screws; stationary nuts'or members having correspondingly-threaded holes engaged by said slide-shifting screws,and mechanism for rotating all of the said screws at the same speed, or approximately so, and in the direction required to simultaneously move the said adjustable rolls inwardly or outwardly, substantially as and for the purpose set forth.

7. In rolling apparatus of the character indicated, the combination of a positively-rotated and vertically-shiftable horizontal top roll; a positively-rotated horizontal bottom roll; the two positively-rotated upright side rolls arranged at opposite ends, respectively, of the top and bottom rolls and shiftable toward and from each other; screws instrumental in shifting the top roll; screws instrumental in shifting the side rolls and having threads that have considerably more pitch than the threads of the top-roll-adjusting screws, and mechanism for simultaneously rotating all of the said screws at the same speed or approximately so, substantially as and for the purpose set forth.

8. In rolling apparatus of the character indicated, the combination with a roll A arranged to operate upon the upwardly-presented edges of the heads or flanges of the work; of an adjustable member arranged to afford bearing for the works web as the work passes below the said roll and mechanism for elevating the said member, substantially as and for the purpose set forth.

9. In rolling apparatus of the character indicated, the combination with the upper and lower rolls arranged to operate upon the edges of the heads or flanges of the work, of a Vertically-adjustable member arranged to afford bearing for the works web between the said rolls, and mechanism for vertically shifting said member, substantially as and for the purpose set forth.

10. In rolling apparatus of the character indicated, the combination with the two rolls arranged one above the other and arranged furthermore to operate upon the works heads or flanges, of a vertically-shiftable collar or cylinder upon one of said rolls between the rolling portions of the said roll, and mechanism for shifting the said cylinder or collar vertically, substantially as and for the purpose set forth.

11. In rolling apparatus of the character indicated, the combination with the verticallyadjustable and positively-rotated upper horizontal roll A, and the positively -rotated lower horizontal roll A of a vertically-shiftable freely-turning collar mounted upon the central portion of the lower roll, and mechanism for shifting said collar, substantially as and for the purpose set forth.

12. In apparatus of the character-indicated,

the combination with the upper and lower rolls arranged to operate upon the edges of the heads or flanges of the work; of .a verticallyadjustable rotatable collar mounted upon the central portion of the lower roll, a saddle below the collar, antifriction-rollers interposed between the saddle and collar, a screw supporting the saddle, a stationary nut engaging the screw, and mechanism for turning the screw, substantially as and for the purpose set forth.

13. In rolling apparatus of the character indicated, the combination of a positively-rotated vertically-shiftable horizontal roll arranged to operate upon the web and flanges inner sides, horizontal rolls arranged to operate upon the edges of the flanges and a vertically-adjustable member arranged to be engaged by the under side of the web in the passage of the work between the last-mentioned rolls; of mechanisn or apparatus whereby the said last-mentioned adjustable member and the said adjustable roll can be moved simultaneously and in opposite directions, respectively, substantially as and for the purpose set forth.

14. In rolling apparatus of the character indicated, the combination of the two web-reducing rolls arranged one above the other in position to operate upon opposite sides, respec tively, of the web and upon the inner sides of the flanges, and one of said rolls being adjustable toward and from the companion roll, two positively-rotated upright side rolls arranged at opposite ends, respectively, of the firstmentioned rolls and shiftable toward and from each other; two other rolls arranged one above the other in position to operate upon the edges of the works flanges; a vertically-ad j ustable freely-turning collar or cylinder upon one of the flange-edge-rolling rolls between the rolling portions of the said roll, and means or mechanism whereby all of the said adjustable members are simultaneously shiftable in the direction and to the extent required, substantially as set forth.

15. In rolling apparatus of the character indicated, the combination with a roll system B having positively-rotated horizontal rolls B B arranged one above the other in position to operate upon opposite sides, respectively, of the web and upon the inner sides of the flanges and having the top roll adjustable vertically, two positively-rotatedvertical or upright side rolls arranged at opposite ends, respectively, of the first-mentioned rolls and adjustable toward and from each other, another roll A arranged to operate upon the upwardly-presented edges of the work, and a vertically-adjustable freely-turning collar or cylinder arranged to afford bearing for the works web below the last-mentioned roll; of mechanism for shifting the top web-reducing roll toward the bottom web-reducing roll, mechanism for shifting the side rolls toward each other simultaneously with and more rapidly than the lowering of the adjustable webreducing roll, and mechanism for elevating the aforesaid bearing-forming collar or cylinder simultaneously with and slower than the lowering of the adjustable web-reducing roll, substantially as and for the purpose set forth.

16. In rolling apparatus of the character indicated, the combination with a roll system B having two positively-rotated horizontal rolls B B arranged one above the other in position to operate upon opposite sides, respectively, of the web and upon the inner sides of the flanges, and having the top roll adjustable vertically, and two positively-rotated vertical or upright side rolls arranged at opposite ends, respectively, of the first-mentioned rolls and adjustable toward and from each other; of another rollsystem A having two'suitably-driven horizontal rolls A and A arranged one above the other in position to operate upon the edges of the flanges, and a vertically-adjlist-able collar mounted upon

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