US347283A - Rolls for rolling girder-rails - Google Patents

Description

(No Model.) 3 Sheets-Sheet 1.4

T. L. BEAMAN.

ROLLS FOR ROLLING GIRDER RAILS.

No. 347,283. Patented Aug. 10, 1886.

INVENTOR ATTORNEY (N0 M0de I.) 3 Sheets-Sheet 2.. T'. L. BEAMAN.

RoLLs FOR ROLLING GIRDER RAILS.

No. 347,283. Patented Aug. 10, 1886.

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WITNESSES:

ATTORNEY INVENTOR 3 Sheefs-Sheet 3.

T. L. BEAMAN.

ROLLS FOR ROLLING GIRDER RAILS.

(No Model.)

INVENTOR M t L,

WITNESSES: w; I M74, v g

ATTORNEY PATENT OFFICE.

' .QT-IMQTHY 'L. BEANTAN, OF KnoXvILLE, TENNESSEE.

ao LLs FOR ROLLING GlRD-ER-RAILS.

SPECIPJiQATION forming part of Letters Patent No.'347.283, dated August 10,1886.

Application filed November 20,1885. Serial Nail-53,398. (N'o model To alll whom itinay'conoern:

Be it known that I, TIMOTHY L. BEAMAN, of Knoxville, in the county of Knox and State of Tennessee, have invented certain new and useful Improvements in Rolls for Rolling Girder-Rails, which invention is fully set forth and illustrated in the following specification and accompanying drawings.

This invention has for its object the rolling of girder-rails; and it consists in a novel construction of the rolls and their passes, or certain of them, whereby the flanges of the rail on opposite sides of its web may be hollowed, substantially as hereinafter described.

The invention also consists in a special configuration of a primary roughing-pass, whereby a less number of subsequent roughing-passes to prepare the bloom or ingot for the finishing rolls will sufilce.

The invention is applicable to girder-rails made of either steel or iron, and it is not restricted to any particular form of foot or to a rail provided with a foot.

A conspicuous feature of the invention is that in the finishing pass or passes [it provides for the web of the rail passing at an oblique angle between the rolls relatively to the axes of the rolls and the flanged head or portion of the rail oblique to a plane intersecting the axesof the rolls at right angles.

In the accompanying drawings, Figures 1, 2. 3, and 4. represent side views of different portions or sections of a set of roughing-rolls, showing a series of consecutive passes for breaking down the bloom or ingotinto a shape ready for the finishing-rolls. are side views of different forms or modifications of the passes in the finishing-rolls, and Fig. 7 a .fnrther modification of the same. Fig. 8 is a side view, upon a larger scale, of a portion of the finishing-rolls, showing the final pass and shape of a flanged girder-rail capable'of being produced by it.

In said figures the respective dicated by letters as follows:

A B indicate a portion of a pair of rough ing-rolls, showing fou r diflerent PHSSGSfBS seen in Figs. 1, 2, 3, and 4; but the invention is not restricted to any number of passes, either in said roughing or subsequent finishing rolls,

parts are inand,so far as the roughing-rolls are concerned,

the main or only novelty consists in the shape Figs. 5 and 6' of the primary pass (shown injFig. 1) to break Fig. 1; but no claim is made to the diagonalintroduction of the bloom irrespective of the shape of the primary pass, which is here represented as having a contour formed by a straight line, a, parallel with the axes of the rolls, the opposite reverse-sloping side portions, 1) 1), straight portions-c c, transverse to the axes of the rolls, concave portions d d, and wedge-shaped portions ee. This configuration of the primary roughing-pass shapes the diagonally-introduced square ingot C, Fig. 1. into a bloom, O, of the shape shown in said figure, corresponding to the shape of the primary pass. Thisshape advances the condition of the bloom or ingot to an extent that it would take several passes to do in the roughing-rolls heretofore used, and by means of this primary pass the number of subsequent roughing-passes may be greatly reduced. Thus the rolled bloom C, as it emerges from the pass shown in Fig. 1, is inserted in the second pass. Fig.2, and rolled into the form as indicated for it by C". It is then inserted in the third pass, Fig. 3, and its shape made to assume the form shown by C, after which it is entered in the fourth pass, Fig. 4, and its shape further changed, as mark ed 0. In each of these figures the parts shown by full lines in cross-section show the product as it emerges from the several passes, respectively, consecutively, and the dotted lines the product in the shapes the same is introduced to the passes. The part1 y-iormed rail is then transferred'to the finishing-rolls D E, to form the finished girder-rail R, (shown in Fig. 8,) which conforms to the shape of the final pass S'iu Figs. 5, 6, and S, and also under a reversed position in Fig. 7, and in which the web f of the rail has side flanges, g 9', Fig. 8, the one g of which is made to present a hollow, h, on its upper side, and the other flange a corresponding hollowspace, h, on its under side, regardless of the shape of the foot iof the rail, which foot might either be of oval or other shape, or be altogether dispensed with by extending the web downward. To make the flange or flanges of the rail thus hollow, instead of presenting straight lines, as shown by dotted lines w w in Fig. 8, whereby 2 arms:

, ing said rolls with passes, and in particular with a final pass, as S, more or less varied to shape the rail to the form of its flanged head,

as may be desired, but so turned in saidrolls.

The portion of the final pass which receives the web f of the rail shall beat an angle of twenty-five degrees.(more or'less) to the axes of the rolls, of which 7c indicates the partingline, and so that the portion of the pass which receives the flanged portions 9 g of the head of the rail shall be at .acorresponding angle,or thereabout, to a plane intersecting the axes of the rolls at right angles. This oblique construction of. the final pass will cause much more than onehalf-say twothirds-of the rail to lie in the one roll, instead of being equally divided between the two 'rolls, as in the ordinary construction of rolls for making girder-rails, in which the web portion of the passis horizontal or parallel with the axes of the rolls, and the portion which receives the flanged head in a plane at right angles to the axes of the rolls. This oblique construction of the final .pass, and consequent unequal distribution of metal in the two rolls,

facilitates the drawing out of the foot and head flanges of the rail, and by the inclination thus given to the rail a perfectly adequate clearance is secured for the upper side I of the flange g, and the under side of the flange made to present hollows or recesses h h, as shown, instead of being filled in, as indicated by the lines 10 10, Fig. S,which straight surfaces,in rolls of the ordinary construction, said flanges could only be given. The hollow shown at h in the flange 9 may sometimes be dispensed with to advantage, as custom in many cases prescribes a flat or straight flange for this portion of the rail.

Three different modifications of the finishing-rolls I) E are shown in Figs. 5, 6, and 7, and these may either be used separately or collectively; but the final pass S in each is the several preparatory or reducing passes S,

from left to right, are all arranged to successively act upon the roughed-out bloom or partly-formed rail on the horizontal-that is,

. with the web of the rail parallel with the is different. As the rail emerges from the last of these horizontal passes, it is 'nearly of the shape shown in Fig. 8, but with the flanges gg filled in, .as indicated by the lines w 10. Upon turning the rail, however, once more half around and passing it through the oblique pass S it assumes the finished construction shown for it by full and cross lines in Fig. 8.

In Fig. 6 the finishing-rolls D E are only shown with one horizontal or first preparatory pass S. to the left, and the other passes S intervening between it and the final pass S,

made gradually and successively inclining to prepare the rail for the final pass S, of maximuinobliquity. In these rolls the respective positions of the rail are not changed in the passes-that is, the rail is not reversed.

In Fig. 7 the finishing-rolls D E have their several preparatory or reducing passes S all set at the same inclination as the final pass S, and the rail is reversed for each succeediubefore observed, the'foot portion may be.

changed or dispensed with. I

Having thus fully described my said improvements, as of my invention I claim- 1. A set of finishingrolls for rolling girderrails, provided with a final pass constructed to receive the web of the rail obliquely to the axes 0t therolls, and the flanged head of I the rail obliquely to a plane intersecting the axes of the rolls at right angles, while subjecting the whole surface of the rail to draft or elongation, substantially as and for the purposes set forth..

2. A set of roughing-rolls, as A B, provided with a primary pass substantially of the conformation shown in Fig. 1, substantially as and for the purposes set forth.

3. A set of rolls for rolling girder-rails, provided with one or more passes constructed to form opposite-stepped flange-head portions ma, and a web portion, u, in oblique relation to theaxes of the rolls and to planes intersecting the said axes, while subjecting the whole contour of the rail to the draft of the polls, substantially as and for the-purposes set orth.

TIMOTHY L. BEAMAN.

\Vitnesses:

" J. Y. JOHNSTON,

D. E. LOWRY.

It is hereby certified that Letters Patent No. 347,283, granted August 10, 1886, upon the application of Timothy L. Beaman, of Knoxville, Tennessee, was erroneousiy issued to said Beaman; that said Letters Patent should have beenissued to the Johnson Steel Street RailO'ompany, of Louisville, Kentucky, as assignee; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Office. v

Signed, countersigned, and sealed this 31st day of August, A. D. 1886'.

[SEAL] H. L. MULDROW,

Acting Secretary of the Interior. Oouritersigned R. B. VANoE,

Acting Commissioner of Patents.

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