US947164A - Rolling rails. - Google Patents

Description

E. E. SLICK.

ROLLING RAILS. APPLICATION FILED MAY 1a, 1906.

Patented Jan. 18, 1910.

I T E E H S S T E E H S 4 INVENTOR 'E.E .SLICKL ROLLING RAILS. APPLICATION FILED MAY 16, 1906..

947,1 64 Patented Jan. 18, 1910. BEETS-SHEET 2.

INVENTOR WITNESSES WWW [a [la/d E. E. SLICK.'

v ROLLING RAILS. APPLICATION FILED MAY 16, 1908.

4 SHEETS-SHEET 3.

B. E. SLICK.

ROLLING RAILS.

APPLICATION FILED MAY 16,1906.

Patented Jan. 18, 1910.

4 SHEETSSHEBT 4.

To all 'whomit may concern:

Be it known that I, EDWIN E. SLICK, of which therail is rolled and the size of the Pittsburg, Allegheny county, Pennsylvania, finished rail, together with the arrangement have invented a new and useful Improveandlocati on of the stands of rolls comprisment in Rolling Rails, of which the following the mill. In this stand I start preferin? is a full, clear and exact description, ably with a bloom or billet, of substantially re erence being had to the accompanying square cross section, which in passing drawings, forming part of this specification, through the first pass'a is provided with a. in Which-- rudimentary head portion 5 and flange p0r-, 10 Figures 1 and 2 are side elevations of the tions 6 and 7. 1 V roughing stands of rolls, and Figs. 3 and l lg. 2 shows the second three-high stand 4 are Side elevations of the finishing stands of'rolls'8, 9 and 10 having the secondpa 's of rolls having s'uccessive forming passes arband third pass 0 in which passes the head ranged in accordance with my invention; ortlon 5, and flange portions 6 and 7 are 5 .In the methods heretofore used for rolling urther reduced and the web portion 11 mils, it 'hasbeen the practice to roll the i partly developed. It will 'be noted that blanks with the axis of the web of the rail 4 the flange 6 in the first pass a is in the open always parallel or at right angles to the axes llve groove and the flange 7 is in the dead of the rolls and t f r th parativ ly groove, While in the second pass 6 the'iflange 20 thin flan e portions of the rail in the early isin. the dead groove and the fl ng v7 1 stages -0 the rolling operation. The thin t e e' g ve h blank is t n p s ed l flange portions would lose their heat more through the third pass 0 in which the head rapidly and become colder than the larger h fiwige'portions and the Web portion are and thicker head portion of the rail. This ill further reduced, the flange? in this case 25 would cause the density of the rails to vary belng in the dead groove and the flange (S in in the head and flange'portions, owing to the live groove. The metal is then passed ,*their difference in temperature during the I 1t the third Set of rolls shown in Fig; 3. rolling operation. It has also been the. prac- 1111s is also a threehigh stand of rolls 12,13 tioe heretofore to have a slabbing pass or -a11d14, which is provided with the fourth 30 passes, in which the vertical height of the and fifth reducing passes d, e in which the shape being rolled is decreased. To 'ac'comshape isstill further formed, the flange preplish this, it has been necessary to provide 10115157 Hi h 1W6 groove DOW g' 't suitable turning devices'for turning the mae grooveand the one in the dead groove terial being rolled through an arc of denow being in the live groove. The metal is p 35 grees so as to enter the successive passes in th n pas d Into the r h stand of r0115 no suitable manner, which is shown as a two high set of rolls My invention relates to the rolling of rails having the finishing 1 5 f, in Which and similar shapes, and the object of my in- 4 flanges are bent to their final position and vention is to provide means for rolling such the rail is bIOllghlltO its final shape. It Will 40 shapes without turning the blanks and in I e noted in this pass that the axis of the 95' this way avoid the use of edging or slabbing shape is parallel with the axes of the rolls passes and the turning devices usuallyem a t a secondvduplicat P f is 1 0 ployed in such mills. shown. It will also be noted that in all of A further object f my inve tio is to roll the reducing passes a line through the head '45 a shape in such manner'that the temperature and flange portions is at an angle to the axis in the different portions of the shape is kept of the rolls which is other than a right angle. more uniform while the rolling operation is This permits of the metal. being redl C f in being completed and in this way, produce a height and width in one pass, and also avoids rail ofuniform density and of an improved any possibility of buckling, as the sides 0f 7 50 quality. the different portions of the blank are al- In the drawings, Fig. 1 shows a three-high Ways in contact with the faces of the pass at stand of rolls 2, 3 and 4. In this stand of all times. Each of the several sets of rolls rollsare duplicate passes a, aand afian'd is provided with extra passes, the several as shown, there is but one reducing pass a passes in each set being duplicates ofonean- 55 used although this number 'may be varied, other. -The supplementary passes are for the "UNITED STATES PATENT OFFICE.

EDWIN E. SLICK, 0F PITTSBU'RG, PENNSYLVANIA.

ROLLING- RAILS.

Specification of Letters Yatent. Applicationfiled May 16, 1906. SeriaLNo. 317,081.

Patented Jan. 18,1910.

depending on the size of the blank from ing the blank islessened and the output of the mill is increased. The flanges of the rail instead of being reduced to a comparatively thin cross section during the early stages of thereducing'operation are kept shorter and.

thicker until the later reducing operations' In this way the flanges of the rails are finished at a much higher temperature than has heretofore been possible, and the density-of the rail isrendered more uniform, resulting in an improved quality in the finished product. v

Variations may be made in the number of passes employed, and instead of a plurality of stands of rolls with passes in each stand, they may be all arranged in the one set of rolls. The rails may be rolled with the flange portions normal to the web in each of the passes instead ofas shown. The contour of the passes may be varied to suit the size and shape of the rail being rolled; and other changes may be made within the scope of my invention.

I claim 1. The method of rolling T-head rails, consisting in passing a metal blank through a pass and dividing the blank into parts whose areas are substantially proportional to the area of the same parts in the finished rail, simultaneously reducing the parts in successive separate passes,-in which the plane of the web is at an oblique angle to the axes of the rolls, passing the flange portions through alternate open live grooves and dead grooves, bending the flange portions out of their normal position and drawing out the metal to any width to which it will flow in the open live grooves, then passing suchflange por tion through a dead groove and then bending the flanges to their final position; substantiallyas described.

2. The method of rolling'T-head rails consisting in passing a metal blank through a pass and dividing the blank into parts substantially proportional to the same parts in the finished rail, simultaneously reducing the head and flange portions in successive separate passes in which the plane of the web is at an oblique angle to the axes of the rolls, passing the flange portions alternately through an open live groove to bend the flange and draw out the metal to any width to which it will flow and'then passing such flange through a dead groove and finally bendin the flanges to normal position; sub- .stantial y as described.

3. The method of rolling T-head rails consisting in passing a metal blank through a pass and dividing the blank into parts Whose areas are substantially proportional to those of the same parts in the finished rail, simultaneously reducing the parts in suecessive separate passes in which the plane of the web is at an oblique angle to the axes of the rolls, and the flange portions are bent out of their normal position, passing each flange portion alternately through an open live groove in which it is drawn out to any width to which the metal will flow and then through a dead groove, the flange portion in the dead groove in one pass being in the live groove in the next pass; substantially as described.

4. The method of rolling T-head rails consisting in passing a metal blank through a pass and dividing the blank into portions substantially proportional to the same parts in the finished rail, simultaneously reducing the parts in successive separate passes in which the plane of the Web is at an angle to the axes of the rolls, passing the flange portions alternately through an open live groove and drawing out the flanges therein and then through a dead groove, the neutral axes through the head and flange portions being at an angle to the axes of the rolls in each pass which is less than ninety degrees; substantially as described.

5. The method of rolling T-head rails, consisting in passing the metal blank through a pass and dividing the blank into parts whose areas are substantially proportional to the same parts in the finished rail,

simultaneously reducing the parts in succesa pass dividing the blank into parts substantially proportional to those of the same parts in the finished rail, then passing the blank through successive passes in which the web is inclined at alternately opposite angles to I the axes of the rolls and simultaneously reducing thehead and flange portions therein. rolling the flange portions alternately within open live grooves and dead grooves, bending the flange out of its normal position and drawing out the metal in the flange within the open live groove to any width to which the metal will flow and then passing such flange through a dead groove and then bending the flanges tofinal position and finishing the rail; substantially as described.

7. The method of rolling -I' -head rails, consisting in passing a metal blank of substantially rectangular cross-section through a reducing pass and dividing it therein into unequal parts substantially proportional to' the same parts of the finished 'ra'il, then pass ing the blank through successive passes in which its axis extending through the head then passing such flange portion through a dead groove and finally bending the flanges to final position; substantially as described.

8. The method of rolling 'T-head rails, consisting in passing a metal blank oit'substantially rectangular crosz-section through a reducing pass and dividing the blank therein into unequal parts substantially proportional to the same parts in the finished rail, then passing the blank through-sud cessive passes in which its axis extending through the head and web is inclined at alternately opposite oblique angles to the axes of the rolls and simultaneously'reducing the head and flange portions therein, drawing out at least one of the flanges to any width to which the metal flows in the open live groove while bent out of its normal position, then passing such flange portion through a dead groove and then bending the flange to its final position and supporting the web portion of the blank by contact with the rolls in each of the passes; substantially as described. i

9. The method of rolling T-head rails consisting in passing a metal blank through a pass and dividing it into parts whose areas are substantially pro 'iortional to those of the same parts in' the finished rail and simultaneously reducing the area of the head and flange parts in later passeswhile drawing out the flange portions in :open live grooves extending at an oblique angle to the axes of the rolls in the later passes and then passing the blank through a finishing pass and finishing the section; substantially as described.

10. The method of rolling T-head rails, consisting in passing a metal blank through a reducing pass and dividing it into parts whose areas are substantially proportional to those of the same parts in the finished I rail. then passing the blank through laterpasses and snnultmieously reducing the area and width of the headportion and drawing out the flange portions in open live grooves.

forming part of the passes and extending at an oblique angle to the axes of the rolls 1n my hand.

the later passes, then passing the blank through a finishing pass and finishing the section; substantially as described.

is at an oblique angle to the axes of the.

rolls and passing the flange portions through alternate live and dead grooves forming part of said passes, the live groove aortions extending at an oblique. angle to tie axes of the rolls; substantially as described.

, 12. In a method of rolling T-headrails, the steps consisting in rolling the blank in reducing passes having flange portions extending at an oblique angle to the roll axes and thereby decreasing the width of the head and thickness of the flanges While maintaining the flange width of the blank being rolled; substantially as described.

18. In amethod of rolling T-head rails,

the steps consisting in rolling the blank in a series of reducing passes having the web and at least one flange portion extendlng at oblique angles to the roll axes and thereby maintaining the width of the flange while simultaneously decreasing the width of the head and thickness of the flange which ex tends at an oblique angle tothe roll axes of the blank being rolled; substantially as described.

14:. In a method of rolling Thead rails, thesteps consisting in rolling the blank in a series of reducing passes having the Web and at least one flange portion extending at oblique angles to the roll axes and thereby simultaneously decreasing the thickness of the flange which extends at an oblique angle to the roll axes, theweb and the head portion s, While maintaining the width of the flanges of the blank being rolled; substantially as described.

lo ln a method of rolling T-head rails, the steps consisting in rolling the blank in a series of reducing passes having the web and at least one flange portion extending at oblique angles to the roll axes and thereby simultaneously decreasing the thickness of the head, the thickness of the flange extending at an oblique angle to the roll axes and the height of the section, while maintaining the width of the flanges of the blanks being rolled; substantially; as described.

In testimony whereof, I have hereunto set EDWIN SLICK.

Witnesses: i

R. I). LITTLE, H. M. CORWIN.

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