US938197A - Process for rolling metal shapes from old railroad-rails. - Google Patents

Description

OLLING METAL SHAIES FROM 0 PRO0ES$ FOB. BER

APPLIUATION FILED SEPT 10 1903 Patented 0015.26, 1909.

' FIG. I.

FIG. Z,

T U z W IESSESJ UNITED STATES PATENT OFFICE.

JAMES E. YORK, or NEW YORK, N. Y., ASSIGNOR T0 YORK ROLLING rnoonss COMPANY,

- A CORPORATION or NEW YORK.

PROCESS FOR REROLLING METAL SHAPES Specification of Letters Patent.

Application filed September 10, 1903. Serial No.

i a low red citizen of the United States, and a resident perature at WhlCh rails are commonly rolled of the borough of Brooklyn, county of Km wil proceed to describe the invention city and State of New York, have invented more in detail with reference to the accomcertaln new and useful Improvements in panying drawings illustrating embodiments Processes for Rerolling' Metal Sha esfrom of the invention. v Old Railroad-Rails, of which the f llowing Figure 1 is a side elevation of a set ofcrolls 1s a specification. used in making an I-beam. Figs. 2 to 7 in- IS invention provides certain new procelusive are enlarged portions otFig. l illusesses for rerollin old rails into I-beams, heads and chairs of compound rails and various other shapes having one or more twoflanged heads. This rerolling improves the quality of the metal; Furthermore the prod not is valuable b W ly f v cessively in Figs. 2 to on a arger scale showing more clearly the modifications which take place in the contour of the rail.

An important improvement is the grooving of the. top of the rail head so as to spread it into two flanges, which flanges are subsequently'bent and reshaped as may be necessary to obtain the final, product de- The rooving is accomplished in pass N o. 3. ince the two flanges are to be ultimately at ri ht angles to groove which is ormed is wide and shallow. As the base flange of the rail is considerably wider than the fiange'which can be formed no change of any portion of the rail except therefore available pressure in line with the'web, separates the head into two flanges. These flanges may then be bent and reduced if necessary to the desired positions and i ensions to form a Y-sha' ed chair or the I-beam illustrated, or 'any 0t er a e having a two-flan ed head. -P.refst reshaped on throughout their t in the other passes v on its side. The dotted lines indicate clearly further description the shape 'goes into pass No. 3 and the of the rail as 1t changes which occur in thlS ass. Prefere under. faces ably in this case as in Fig. l t of the rail head are reshaped to form I a pressure of the grooving 1n the same direction as will receive the effect of compacting and hing) wearing surface and there y ma 'n it dense, hard and durable. The rerolled shape is given the maximum 1 I from the rail head, I prefer (where the com-- Patented Oct. 2c, 1909.

the web the a sears? taperS' more nearly coinciding with the diactly the same cross-sectional area may be 65 rection of the web so that the flanges R B. to e w h o fl ge heavier n' other, be subsequently formed shallv have a regnl Since this is not a disadvantageousconstruclar sha e of substantially the same thickness 3 and is 9 Course st p n 30 throu out or at least of not less thickness mg he rolllng to bring the larger flange at their inner or lower portions than attheir w to h me 8 M 1 s maller- 7 0 outer ed es. This i o li h d i Pass Also the several steps or subprocess'es are rolls T and U hold the web of the bar and modified within the invention by submitting k I have shown as desirable to secure a final product of peculiar shape or dimensions.

No. 2 1g. 3). Ihe dotted lines show the change of contour and show also the reduction in the thickness of the web and the width of the base flange which is accomplished in this pass.

Fig. 2 illustrates'a step which may be em ployed whereby the flanges R R'are made of the same length. Accordin to Fig. 2 the rail in pass'No. 1 is flattene on-the top so as to be substantially symmetrical with respect to thevertical center line.' By reason of this symmetrical shape it follows that when the rail goes throughpass No. 3 the two fiangesR R are formed of substantially equal lengths.

After the passage through pass No. 3 the subsequent steps are' concerned chiefly in bending and reducing the several parts to the exact shape and dimensions of the final product desired. Fig. 5 illustrates pass No. 4 in which the rail is passed in an upright position between fiat rolls which bend down the flanges R R to a substantially horizontal position from the upwardly inclined posi-' tion indicated in dotted lines. In Fig. 6 the bar is shown laid-on its side in pass No. 5, the principal effect of which is to reduce the width of he baseflange X and the thickness of the web, and also to some extent the thickness of the head flanges R R. In order to obtain the final reduction of the thickness of the flanges R R which is necessary if they are to conform to the base X ofthe finished beam the bar is rolled through ass No. 6 (Fig. 7). Here the horizontal capable of use in many cases independently of the other ste s constituting the complete rocess describe For example in Fig. 8 is indicated a method'of producing an l-beam from the girder rail havin a header peculiar shape with two anges already formed. The conversion of sucha rail into an l-beam, (or into a Y) does not call for the grooving and hanging of the head but so merely for the reshaping and reducing o the flangles R and it already provided. ese flanges are very much wider than the. flanges of the finished product sired width. Therefore though I have described with great particularity of detail embodiments of the invention, yet it is to be 1 understood that the invention is not limited to the s cific structure or processes disto closed. 'arious modifications thereof may be made by those skilled in the art without departure from the invention.

What I claim is:

1. In converting a worn rail into, an I-beam, the process which consists in 'subjecting it to the following ro ling and bending operations, namely: rolling the top of; the rail head flat to make it-substant ally symmetrical with respect to the center line of the web, rolling down the under faces of v the head to form a ta er more nearly. parallel with the web, ro ling down a groove in the top of the head to form two upwardly inclined flanges, the taper 3 being such as to insure that the thickness of said flanges at the points where they meet the web shall be at least as great as their thickness at their outer edges, holding the web'between oppo.- site rolls and supporting the under faces of 11 the head in a direction upwardly inclined from the web and approximately parallel to the upper faces of the flangesbeing formed by said grooving operation, bendin down said flanges to a position subs'tantia y per- 13 pendicular to'the web, and rolling down the rail base to reduce its width'jandthe said flanges to reduce their thicknessnntil the said rail base and the o posits head formed by said flan es are an stantially equalfin 1 width and thickness respectively, and simultaneously rolling down the web to reduce its thickness correspondingly. I

2. in convertlng a rail into an I-beam or the like, the process which consists in re-' i shaping the under faces ofthe head by rolling it down to form a taper S more nearly parallelwith the web, rolling down a groove in reduce the same in thickness, preferably also reducing to some extent and to its final width the base X. The roll W acting with a pressure in line with the web effects a considerable reduction in the thickness of the flanges R R and brings them finally to the desired dimensions. p

The processes described may be considerably the rail to two or more 0 erations to accomlish the changes which have indicated as eing accomplished in a-single pass; or by omitting one'or more of the operations which These are 'matters which are quite within the skill of persons familiar with this art. Also the contours of the rolls or of the passes between the rolls may be modified within certain limits. lhe Lbeams forexample instead of having the flanges reduced to extheir edges may be sheared oil to the de- 85 988,197 8 the teppf the hea d own said flanges to a substantially hori'zon- I clined flanges, the taper S be 1 tal position. insltrethat the thlck ess of the head in a direction ppw JAMES YORK Witnesses:

DOMINGO A. USINA, FRED WHITE- the upper faces of the H 10 by said grooving ,oper

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