US852000A - Furnace-rail. - Google Patents

Description

. PATENTED APR. so, 1907: M. SKLOVSKY.. FURNACE RAIL.

0H FILED PB UNITED STATES PATENT OFFICE...

MAX SKLOVSKY, OF MOLINE, ILLINOIS, ASSIGNOR TO DEERE & COMPANY,

OF MOLINE, ILLINOIS, A CORPORATION OF ILLINOIS.

FURNACE-RAIL.

No. seaooo.

Specification of Letters Patent.

Patented April 30, 1907.

Application filed February 27, 1905. Serial No. 247,589.

To aZZ whont it Duty concern:

Be it known that I, MAX SKLovsKY, a citizen of the United States, residing at Moline, in the county of Rock Island and State of Illinois, have invented certain new and useful Improvements in FurnaceRails; and I do hereby declare the following to be a full, clear, and exact description .of the invention, such as will enable others skilled in the art to which it appertains to make and use the same. I

This invention relates to furnace-rails, used in continuous heating furnaces, in which ingots, blooms, or other blanks are charged at one end of the furnace, and are gradually and usually intermittently urged forward, passing through the furnace, and discharged at the opposite side in a properly heated condition for working. In order to support the material as it passes through the furnace, two or more rails are usually laid upon the floor thereof, or above the bottom of the furnace, extending from end to end of the heating-chamber. The material is placed on these rails and slides upon them during its passage from the cool to the heated state. Prior to my invention, the rails generally used for this work were what are known as piperails, comprising hollow pipes or tubes through which a stream of cold water was continuously passed to prevent the burning up of the rail. These were objectionable and disadvantageous for many reasons. First, it was tedious and expensive, when putting in new rails, to adjust them to their proper places and to make all the waterconnections. Special means were required for holding them in place, thus increasing the expense of installation, besides the cost of the pipe itself. Furthermore, even with the cold water passing continually through the pipes, they would warp more or less and wear out, and when worn through the water would escape into the furnace and make trouble. There was a large amount of labor involved in taking out and replacing the rails, and when in position they were comparatively short-lived, because a slight break or hole in a pipe would necessitate the discarding thereof. The almost constant attention of a steam-fitter was necessary, to keep the pipeconnections in good order, and regulate the 'flow of water so as to prevent the pipes from becoming emptied and getting red hot and thereby exploding when the water was suddenly let into them and turned into steam. Moreover, the use of these pipes caused cold streaks to show in the material at the lines of contact thereof with the rails, where the material could not be heated. A great deal of the heat of the furnace was also carried off by the water, thus reducing the economy of the wo'rk.

\ The main object of my invention is to obviate these troubles and disadvantages, by providin the furnace with simple, economical, practicable and lasting furnace-rails of metal, wherein the bearing surfaces for the material or'the rail proper are effectively protected from warping and deterioration, and which when eventually worn may easily be taken out and replaced by newrails at a comparatively low cost. This is accomplished by means substantially as illustrated in the accompanying drawings, which form a part of this specification.

The invention will be fully described with reference to said drawings and then particularly pointed out and defined in the appended claims.

In said drawings: Figure 1 is an enlarged cross-section of a furnace-rail embodying my invention. Fig. 2 is a perspective view, showing a furnace equipped with the improved rails in place therein.

The letter A denotes a' comparatively large or heavy cast-iron bar, preferably substantially square in cross-section, constituting a bed-member of the furnace-rail, and of length commensurate with that of the heatingchamber, though several sections A may be used laid end to end if desired. The bar is shown with a longitudinal channel B along its under side, and it rests on this channeled side, either flat upon the floor or otherwise suitably supported above the bottom of the v furnace; the weight of the bar serving to keep it in place, though it may be clamped if desired. The bar may be made of various shapes; though the cross-section shown has been found in practice a shape that will give good results. In its top, the bar is formed with a longitudinal groove in which is embedded the rail proper O, the latter being preferably of steel and presenting a surface or bearing to receive the material which is slightly above the top surface of the inclosing castiron jacket or protector. This groove is oon'ipara'tively deep and narrow, and in prantioe is planed out to secure an aeourate lit ol' the rail (1, which is eomparatively high and. narrow, and projects but slightly above the upper surface of the bar to provide the said bearing surface. Thus the east-iron bar A practically constitu es a jacket for the steel rail C, surrounding it upon three sides, and largely protects the latter fron'i warpine and becoming useless. T le rail .l 'orn' s desirable surface on which the material slides easily from one side or eml of the furnaoe to the other.

l Vhile o'lcourse this rail will not last iorever, yet it lasts so long that it is far more economical, enduring and satislaetor than the water-pipe-rail, and is praetially 'lree from warping. 'ilheie is no labor involved in renewing the rails, the old rails have to he simply lifted out and new ones in 1 lane, being there elaniped if desirable. No waterconneetions are neeessary, and no eorrcspon ding labor in making;- tl... se eonneetions, and no expense of eontinual attention from a skilled s team -ili t A vital advantage of this improved. rail is, that when the work is moved along: over it there are no cold St" 's left where the work eon'taets Wlllll t *ate pipes are used, the w z'k do is int neat where it eontaets with the pipes, and eold strezks left upon the stock that is heated. in the present o mstruetion, the rail ssui'nes the same temperature the stook, and hena'e there are no oold streaks lel't on the material. Anothe advantage 's that with the niieial esaooo tl with water-eooled pipe-rails, and ti erel ore "he eeonmny oil the work in pi tree with the present rail is much greater. Again, rail adji stable horizontally and angularly, so as to be adapted. to dill'erent lengths oi" work instantaneously. l l ith the old pipe Jails all the eoniiieetions had to l)( changed. (it course ly free from the danger of explosion. Vullifill. danger was always present in the old pipe rail.

The east-iron bars or lied-rails are 'pi'1-l o1- ably lel t rough with the molding sand on hem in adegree rem hating inllninee of the l lll'llllkfi 'ail no heat oi the furnace is carried oil, as is M (J2 um i eni, and unsproteets i i the def...

teat.

Should ihe CZ'LSt-Il'l'lfll rail break or PltMl I,

tle embedded steel rail would hold thr pails e'll'eetivelv together.

i, elann as my invention, and (liSI'iO lo so on re by iie ters Patent oi the llnn ed Hi Z es:

A. compound furnace-rail comprising a heavy =.ast-iro1'1 bed-momher having a deep longitndinal groove along its upper side and a ei'nnparz lively narrow steel rail liar! ed and en'ihcdded in said groove and having its liearing edge slie y above the surime ol said hed-ineinlie in tvsiiinoi'ijv i /hereof aliix my signature.

of two witnesses.

in presence "ii/Q1 illilitll llii i ll itiiiesses (hiss. ll. lorn, l l). llom.

the present rail is en-

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