US968465A - Art of rolling. - Google Patents

Description

O. M. GREY.

ART 0F ROLLING. Arrmoxox rxnnn .nmz 21, 1909.

Patented Aug. 2s, 1910;'-

[Eudes/M611] Q C.M.GREY.' j g v., l, ARToPRoLLman- .Y

` PPLIUTW FILED JULY 27, 1909.

Patented Aug.'23,1`910.

2 SHEETS-SHEET 2.

woe Hoz Jigs.

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Unirii) n s. rArisy Parser i oFF-ion.

CHARLES' M. GREY, OFEAST ORANGE. NEW JERSEY. ASSIGNORVTO NEW Y() K STEEL BEAM 61: GIR-DER COMPANY, OP NEW YORK. N. A. CORPORATION OP NEW' YORK.

rrr or ROLLING. i

To all whomf'it may concern:

Be it known that I, CHARLES M. GREY, a-

`citizen of the United States, residingv in of which the following is a specification.

This invention is a new and useful rolling i mill, wherein l eiiiplo}'ina in trainsy having f' new method of rolling.

rolls of a novel construction, for the rolling@r of beams, channels rand other llanged sections, and thc invention embodies, also, a

In the rolling mill l i matter of this inventiony I Vutilize the so called universal trains, or stands of rolls, of

thattyie containing horizontal and vertical rolls w ierein the axes of both the horizontal and vertical rolls are in the sumel lane. has heretofore been the practice, in operat' ing mills of this type, to use trains other than those constituting the universal train, frequently `termed sup lemental mills, to operate upon the edge-0 the flanges so as to regulate the width of the flan-ges, but ther present-invention enables siiid-supplemenl mr" mill to be 'dispense with.

he inventionv embtlies vmechanism for rollingl flanged sections' of metal, such as I- beams. Hlieanis, girder orV channel beams, etc., without the necessity of raising or lowering feed tables at each passage o the bar as is the cna; in three-highmills. This is accomplished, moreover, without the use of the so called su plementarv mills which operate only ori t e flange edges of the section being rolled, and require a heavv and costly equipment, which equi ment is notutilized7 however, to material y reduce the area of the'seetion. i i

In universal millssupplied with sup lementary rolls for-working on flange et ges only, the main rolls, ae., those working on both sides of the web' and the inner and outer sides of the flanges-are subject to excessive wear. due to the fact that thev' must stand the abrasion ineiden't to the r notion of area of the bar at each passage through the rolls. In applicants invention this wear .or abrasion; due to the reduction of areal of the bar, is very materially overcome, -since it, is divided u between tivo sets of rolls, andyacconding y, ii! only hiil of whatit is on each mil'm set ofa mill working inloonjun'etion 'supplementary or4 Speccation of `Letters Patent.l

VApplication Sled' July 27` 1959. Serial No. 509.77%

yof the invention. but

forming thev subject;

Patent cil iig. M, 19 l 0.

edge forming rolls.' A mill embodying this invention enablesl two .sets of supplementary irainsto be dispensed with without loss of function. and, moreover, the new mill occupies only onehalf the room and requires otillvv one-halt the roll changing that is iiecessaim inorder to provide against the wear of rolling a given tonnage on'univei'sal mills employing supplementary rolls.

ln the aeconiliiauving .f'lrawings .l have illustrated different practical einlioi'liinents the constructions shown therein are to he ui'itlerstood as illustrative. only, and not as cli-.lining the limits ot the invention. except as thescope of the claims demands.

Figure l is a plan vview of inv improved niill showing. also, a suitable drivingT mechanism therefor; Fig. Z isran end elevation of the trains shown in Fig. l, but. for clearncss. oriiittinrr the backing' rolls for the vertical rolls ot said trains; Fils. l and 4. are diagrammatic views of the horizontal and veriical `rolls of the trains shown in Figs. 1 and 2,and sliowing` the piece in position to he operated upon Figs. aiid are diagrammatic views of the liorizontal'and vertical rolls of the train shown in Figs. l and 2 illustrating :i modification of the arrangement of rolls. shown in Figs. 3 and 1. and which :night he used in practicing the invention. w

Referring particularly to Fig. 1, l have illustrated therein two sets or stands of rolls, .-1 and B. and each stand consists of four working.r rolls, two horizontal and two vertical. all haring their axes in the same plane. The top horizontal roll of one train, saytrain B, has flange edge rolling,r collars, P, see Fig. 4, 'while the horizontal roll cooperating therewith is not provided with such cellars. liithel other train, however, sav train. A. the bottoni horizontal roll has flange edgerolliug collars, P', see Fig. 3, while its cui'iperating horizontal roll is not `provided with such collars.

' The foregoing arrangement of flange edge rolling collars mayv` be varied, as shown in Figs. and 6, wherein thtl flange edge rolling col'ars are diagonallv opposite one ilange edge rolling collar, P2, being formed on one roll, and another flange edge rolling collar, P3. oeing formed at the-.opposite end of the other roll, see Fim 5, or in op .sing

' ons. as shown at z" and' P5, ig. 6.

posi

als

y i ln Fig. 5'. the vertical rolls are lettered', DQ,

` I, on the bottom roll` of train,`A. Each y vertical roll, E, is supported on a saddle, F,

free to slide in blocks. F. which blocks are l supported by the rods, Fattached'to the top chucks. l". As a result, the upper edgesr ofthe vertical rolls, E. are always closely adjacent to the flange edge rollingcollar, l, on the top roll, but. at the sameti ne, are capable of lateral adjustment on'account of being slidably mounted in the blocks, F

y The rolls, l),are held closely adjacent to the flange'edge rolling collar, P', on ther bottom roll by any smtable means which prevents the saddle on which it is mounted from l being displaced vertically.

' The means for mounting and adjusting' the vertical rolls is substantially the same as the means employed 1n universal mills, c-ne example of' which is disclosed in Greys.

las

Patent. No. 943,683, granted Dec. 14, r1909,

but suela means may be deseribedgenerally,

as follows. Y

By reference, to Fig. 1 it willfbe observed that each stand of rolls is provided with a shaft, l, extending across the top of both 'n housings and showing an end broken off adjacent to the pinion housing. Said shaft, in practice, is operated, 2'. e., rotated, by any suitable motor, such as an electric motor. The shaft is provided with worms, m, which imesh with worm wheels, n, which wheels are so mounted on top of screws,x0 Figs. 1 and. 2) as to rotate'sald screws, While at. the same time permitting them to move ver tieally (key or feather). Said screws dlect the vertical adjustment of the horizontal rolls. The shaft, l. is also provided Wit-h bevel gears, P, meshing with gears, R, which latter are mounted upon a shaft. (S) extending downward to a worin, T, which in turn mesh with a worm gear, U. vWorm gear, U,

is mounted upon\the end of a serew,.V, this latter screw effecting the in and out adjustment of the vertical rolls. It will thus be seen that with each adjustment of the horizontal rolls, which takes place before each succeeding reduction of the bar in cross sectional area, as it asses through said horizontal rolls, that tlle vertical rolls are, also,

adjusted inward, through the mechanism described, thereby rcsulting in a proportional 'reductionof the cross sectional area of ,the

flanges cf the harms-rated unen.

' It will be observed that the' vertical rolls are beveled at the ends that. are adjacent to the flange edge rolling collars. This bevel is an important feature of my invention, for

the re.isons,mainly, that when the bar is being reduced in cross sectional area between the horizontal and vertical rolls no reduction in thickness of the flanges is made at the extreme end of the bevel, the latterV being made sufficiently small in diameter to escape all pressure coming from any reasonable reduction in thickness of the flanges at one passage of the bar. and itprovides a i space for any metal that may be displaced or spread by the rolling action of the flange edge rolling collars. This space is of such form as toallow such displaced metal to y assume a triangular shape, which shape fa-v cilitates the rolling or working of it into the body of thetlange upon the vnext passage of the bar through the rolls. 'F or in stance, referring to Figs. 3 and 4, supposing we are Lworking through mill, A., in one A direction, and passing through mill, B, without any reduction; then workinv through B and passing through A without anyreduction in cross section, but. with the rolls of A placed in exactly the same position re1- `atively as they are' in B While rollingyit follows that even if there was a tendency to spread the metal at the ,edges of 'th flanges in B, it would be all straightened out in passing through A although A. would otherwise he idle. lf the vertical rolls were not beveled the` displaced metal would spread out between the flange. edge rolling collar and the end of' the vertical roll adjace t` thereto, forming, a thin and proportionate y the flanges on the 'next passage of the bar.

portance of providing for the ing of such tin as may occur.

Fig. 1 illustrates, also, the pinions or gears for operating the mill, and they are connected to a suitable drive, which, as

proper shapf shown, com rises three gear Wheels, S', S,

S3, mounte on shafts, X', X2, X", respectively. The middle shaft. X3, 1s connected to a suitable motor through the medium of clutch, C. The two outside shafts are ini turn connected to the pinions operating trains, A and B, in such a. manner as to revolve the trains in the same direction.

In operating the mill as shown, one stand of rolls operates on the bar at each passage of the oar through the mill, while the rolls of the other stand are. spaced sutiiciently apart to render them inoperative as regards reduction in area-of the bar. It is to be understood, of course, thatJ the a plicant does not limit himself to the particu ar type of drive illustrated', as any suitable device might be used fonthis purpose.

The vdrawings :forming7 part of this specification contain many atures, old in the art and the operation of which are well known, so I have not deemed it necessary to describe them in detail.

From thev foregoing description of the mill, it is believed its operationV will be readily understood by those skilled in the art, but it maybe described, briefly, as fol lows: 'lhe driving crab or clutch, C, Fig. 1, is driven by any 'suitable' motor or engine which is to bc reversible at will, so that when-the -engine is driven in one direct-ion, say in the line from A to B, only one stand ofrollseithcr A or B will be used to reduce thc cross section of the bar being operated upon; but when this bar, while traveling inthe direction indicated, shall have passed through both the stands of rolls` inNonc of which the cross sectional area isrrgduced, and on thcvother of which no work st done 'at all, the mechanism is reversed, whereunon the bar travels in the opposite direction and kis reduced in cross sectional area in thaty stand of rolls through which it previously passed wit-hout "sing so reduced. Thus the bar is caused t travel alternately in one direction or thj' other and when traveling kin one directionI is reduced in. cross sectional area` in one stand'of rolls and when traveling in the other directionis reduced in area in the other set. For example, as the piece operated upon, o, passes through train, A, both sides of the web, the inner and outer sides of the flanges. and the edges of the bottom flanges will be .rolled or elongated,

while the top edges ofthe flanges will be free -to spread in a vertical direction; now as they piece, being reversed in direction passes through mill, B, both sides of the. web and the inner and outer sides' of llanges and the top edge of flanges will be rolled while the bottom edge will be free to spread as before described.

As the rolling action on half the flangey '5 and ti.

One embodiment of the invention is illustrated in 2, 3, and 4 of the drawings, but an obvious modificationl consists in providing two stands of rolls, of the type described, one horizontal .roll of each stand being fitted with flange edge rolling collars having one end of each of the vertical rolls' closely adjacent thereto. Furthermore, this 968,465 v 5 y 'a [horizontal roll, thus fitted with flange edge rolling collars, would be relatively ived, z. e., would not havetobe adjusted during the process of rollinganal the spaccbetween the two horizontal rolls of each train would be decreased for each successive pass by the vertical adjustment of the horizontal roll not )rovided with .flange edge rolling collars.

'i leans would boprovided, of course, for the Aadjustment of -tle end of the vertical roll toward or away from the axis of the roll f' fitted with flange edge rolling collars and the vertical rolls in all cases would be so ment tor each successive pass. The arran ement ofthe rolls previously described wou d,

naturally, be the )referred form, since considerably fewer a justments of the rolls-are requiredy therein. i The method disclosed in the foregoing description forms a valuable feature of the invention, and claims covering the same are appended hereto.

Having thus fully described the invention, what l claim as new, and desire to secure by Letters Patent is: j 1. In a rolling mill for rolling sections havin of rol s each of which contains vertical and horizontal rolls the axes of all of which rolls are in the same plane, the rolls of one set being provided with working surfaces adapt-v ed to o cratefon the web and on the faces flanges on y, and the' rolls of the other 'set beingfprovided with working surfaces adapta web and four flanges, two stands susv ed to operate on the web and on the faces of f the flanges and onvthe edges of the two other flan es not operated upon by the first set of.rol s, tlie saidfstands being rso posi tioned relative to each other .that both deliver the bar in the same direction at cach rolling operation, and the reduction in cross section will be effected alternately on one stand and then on the other.

2. In a` rolling mill for rolling sections havino' a web and four tl'anges, two stands 'of rolls each of which contains vertical and horizontal rolls the axes of all of which rolls are in the same lane, the rolls of one set being provided with working s nrfaces adaptedV to o erate on the web and on the faces of the anges and on the edges of the two flanges on one side of the web only, and the rolls of the other set being provided with working surfaces adapted to also operate on the web and on the faces of the flanges and on the edges only of the two langes on the opposite side of the web from those operated upon by the Erst set of rolls.

3. In a rolling mill of the character indicated, the combination of vertical and horizontal rolls having their axes in the same plane, one of. the said horizontal rolls heing fitted with flange edge rolling collars,

Q bar, one of said horizontal rollsbeing rowhich the adjustments of the vertical and lo vided with two laxnigl edge rolling collgu's yhorizontal rolls are effected simultaneously.V

closelg7 adjacent to ythe rolling surface o In testimony whereof I have signed my each of which is the'end of one vertical roll, I name tothis specification in the presence of f 5 the said vertical rolls being so mounted as two subscribing witnesses. l to be heldin such osition during the operav CHARLES M. GREY.

tion of rolling uml) being capable of ad'ust.-

Witnesses: 1 f ment horizontally afterl each passage 0g the y JAS. H. GRIFFIN,

bar, and a. single operating mechanism `by H. T. BnRNHAnu v

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