US1456944A - Method of cooling rails or the like after rolling - Google Patents

Description

MayTZQ; 1923. 1,456, 4" c. STENBOL METHOD OF COOLlNG RA ILS OR THE LIKE AFTER ROLLING Filed Feb 11, 1922 Iva/ ggro Patented May 29, 1923.

More s-rss CARL STENEOL, OF SAULT STE. MARIE, ONTARTO, CANADA, ASSIGNOR TO ALGOMA v STEEL CORPORATION, LIMITED, OF SAULT STE. MARIE, ONTARIQCANADA.

METHOD-OF COOLING. RAILS OR THE LIKE AFTER ROLLING.

Applicatioii filed February 11,1922. Serial No. 535,816;

T all 107mm it may concern:

Be it known that CARL S'rnNBoL, a subject of the King of Great Britaim of the city of Sault Ste. Marie, in the Province of Ontario and Dominion of Canada, has invented certain new and useful Improvements in Methods of Cooling Rails or the like After Rolling,of which the following is a specification.

This invention relates to improvements in,

than results from present processes or modes;

of cooling.

The present process of coolingrails is to lay them horizontally upon a platform composed of spaced stringers, and to allow them to cool by natural radiation of the heat, turning them from time to time to change the points of contact between the rails and the stringers in the platform. This process resultsin crooks and kinks caused by unevennesses in-the platform, differentiation inradiation by contact of parts of the rail with the stringers in the platform amongst other causes.

Instead of laying the rail horizontally upon a platform so constr ucted, I employ a process or mode suspending the rail at one end and permitting it to hang vertically by its own weight. By this means the rail is surrounded at all sides bythe atmosphere permitting of equal radiation of heat from all parts of the surface, and the force of gravity tends to keep the rail straight and prevents the formation of crooks or kinks. Moreover, by means of my process the effect produced by the relatively more rapid cooling of the thinner portions of the rail than the thicker portions thereof can be more accurately and readily calculated and provided against than under present processes. It-will be also seen that the rail cooled by my process and requiring straightening could be straightened by fewer blows, and will be sub j ect to less strain than a rail cooled by present processes.

The deviations from perfect practical straightness of the rail cooled by means of my process, if any, are fewer than results from present processes, and, if any, may be removed by the present well known method of straightening. V 7

, i further advantage of'my process i'sfto have the rail in such position while'cooling that artificial means of'h'eat control such as normalizingor heat treatmentsof any kind" can readily be applied without 1 distorting the rail while in the. act ;.of cooling which not possible under the present methods. a v i f A still further advantage of my, process is to have the rail in such position while cooling that artificial tension, additional to that ref-f sulting from the force of gravity, maybe applied to the rail by suitable apparatus, and thus increase the tendency of the rail to re main straight while cooling. v j

The drawings illustrate suitable apparatus which may be employed for carrying out the process. v

V In the drawings: J j

Figure 1 is an elevation partially diagram matic of the apparatus for carrying'out the invention. 1 v j i Figure2 is a side elevation ofthe same. Figure 3 is a cross sectionalelevationshowinglmeans for applying extra tension to the rai s. A indicates the usual horizontal hot bed onwhich the rail Bis supported; C'indicatesan upending beam ofany usual construction having fingers 'lO which extend beneath the rail and by which the same is I lifted, the rail being suitably retained on the upending beam as by means of a clamp 11' which is secured to the web of the rail and by a set screw 12 the end of the clamp being formed with a cross bar 13 the projecting ends of which engage brackets 14: on theupending beam C. The beam C is designed to be raised by a hoist D and a chain or cable 15 which extends from the hoist over a pulley 16 on the end of the beam C, the lower end of the beam being pivoted to a suitable base 17. The raised position of the upending beam C is indicated in dotted lines in Figure 1 and when raised the beam as a whole is designed to be lifted by a suitable lifting jack E preferably of the hydraulic type which will raise the beam as a whole and permit the eye 18 on the end of the clamp 11 to be engaged by a grapple 19 carried on a suitable clampin device F mounted on an endless carrier This endless carrier at a suitable point may pass through a chamber H in which any desired heat treatment may be given to the rail while cooling and further, if desired, a tension may be given to the rail through suitable means such as a spring 20 connected at one end to a suitable clamp 21 connected to the rail and at the other to a fixed bracket 22.

It may be found desirable to provide for turning of the rail during cooling in order to increase the uniformity of the heat treatment and to thls end I provide a swivel 23 of any suitable type intermediate of the length of the clamp 11 and a suitable swivel 24 may also be included between the spring 20 and the bracket 22. The upending beam C of the hoistl), the jack E, the clamping device F and the swivels 23 and 24 may be of any well known construction and do not form part of the present invention.

While the method has been described especially with regard to cooling of a rolled v rail, it will be obvious that the same Process may be carried out with any similarly shaped article and that the same advantages would result.

As many changes could be made in the above method and many widely different embodiments of my invention within the scope of the claims, constructed without departing from the spirit or scope thereof, it is intended that all matter contained in the accompanying specification and drawings shall be interpreted as illustrative and not in a limiting sense.

\Vhat I claim as my invention is:

1. In the art of cooling rails and the like after rolling, the herein described step which comprises suspending the rail or the like vertically under tension during cooling.

2. The herein described method of treating rolled rails or a like article which comprises first raising the rail to vertical position while hot, then freely suspending and allowing the same to cool in suspended position under conditions permitting equal radiation of heat.

3. The herein described method of treating rolled rails or the like which comprises suspending the rolled rail while hot and pering the article while still hot and permittingit to cool while suspended and under conditions permitting equal radiation of heat from the different p arts of the surface thereof, 'and turning the article during suspension.

6. An apparatus for the purpose specified comprising a hot bed, an upending beam, a clamping device for engaging the rail on the upending beam, and a swivel connection between the clamping device and the rail.

7. An apparatus for the purpose specified comprising a clamping device, a carrier for the same a fixed support a heating chamber, spring tensioni'ng means adapted to extend between the rail on the clamping device and the fixed support.

In witness whereof I have hereunto set my hand in the presence of two witnesses.

CARL STENBOL.

Witnesses MARGU'ERITE IsABnLLE MoRRoW, OLIVE FnANpEs Amus'rnoNG.

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