US398840A - Hot-blast stove - Google Patents

Description

(No Model.)

E. MASSICKS 8v W. GROOKE.

HOT BLAST STOVB.

No. 398,840. Patented Mer. 5, 1889.

Inventors. 7i/04m MMM Wz @am @Qa/@MM W A el.

Winesea.

UNITED STATES PATENT OEErcE.

HOPAUE MASSICKS AND YALTER CROOKE, OF THE PARISH OF MILLOM, COUNTY OF OUMBERLAND, ENGLAND, ASSIGNORS TO GEORGE YV. MCCLRE AND LOUISA SCHULER, EXECTRIX, BOTH OF PITTSBRG,

PENNSYLVANIA.

HOT=BLAST STGVE.

SPECIFCATION forming part of Letters 'Patent No. 398,840, dated March 5, 1889.

Application filed October 2Q, 1886. Serial No. 217,538. No modeli) Patented in England March 24.-, 1881, No. 1,312.

To all 'whom 'it may conca/'12,.-

Be it known that we, HORACE MASSICKS and VALTER CROOKE, both of the parish of Milis a valve cmitrolling the line 71, by operation lom, in the county of Cumberland, England, y

have invent-ed a new and useful Improvement in Hot-Blast Stoves, (patented to us in Engi land on March 24,188LNO. 1,3125) and we do l hereby declare the following to be a full, clear,

and exact description thereof, reference bei ing had to the accompanying drawings, formg ing a part of this speciication, in whichthe iiues c through horizontal arched uesm.

Figure l is a vertical section of a hot-blast t stove constructed according to the principles of our invention. Fig. 2 is a horizontal crosssection on the line c a: of Fig. l.

Like symbols of reference indicate likeparts in each,

n is the usual hot-air valve, A is the gasvalve, and p is a iue through which air is admitted to support combustion in the iiue E.

The operation is as follows: To heat the lines of the stove, the valve D of the cold-air pipe i and the valve/n of the.l10tblast pipe B are closed and the gas-valve A and the valve h of the dischargeiiue 71l are opened. The

gas will then enter the iue E and ignite, and

In the drawings, a represents the hollow c vlindrical shell of a hot-blast stove it is divided by vertical concentric walls or divisions d a2 a3, which are preferably divided segmentally by vertical radial walls or .y divisions B, extending' from the middle of the 3 the center ot' the stove, but the radial walls B divide it into segments for the greater part of its length. B v means of these walls the stove is divided into three sets ot' vertical lines-thc Iiues l) l1', which are practically one liuc, the tlue c, and the V(lues d dwhich together form one 'lue and unite at their bases, opening into the vertical liuc E', which, through an arched horizontal branch, E, leads to the liotdilast main l and to the gas-main A. At 'the top olf the di vision-wall a3 the flues d, d', and, c open into a common dome or chamber, e, which conncctsthcm. The fines h h are connected at the top of the stove by a horizontal arched ,tlue,f, and from this tine branch flucs g lead to the discharge or stack flue 71 which is at the top of the stove.

i is the cold-blast supply-pipe, which enters the fines g at the base of the stack-line 7L.

D is a valve controlling the pipo 1', and 7i thence will traverse the uptake lines d d', chamber e, [lues c, tlues m, and thence up through lines b b and iiues g to the dischargestack 7i. lVhen the walls have been heated sulicientlv, the valves h and A are closed and the valves D and n opened. The cold blast will then pass downward from pipe i 'through tlues g and b b', thence up through the flucs c into chamber e, and downward through iiues d d into iiue E, and thence through the hot-blast main B to the furnace.

The principal feature of our invention as thus described is the location ol the dischargeiue 72 and the cold-blast inlct at the top of the stove, in -onnection with the first or main comImstion-llncs located at the center or midi die portion ol the st ove, and thc use of. an odd number ol' sots of Ilucs or passes, b b', c, and d d, whcrcb)- we are enabled to have this arrangement. 'lhe advantage of this position of the tine lz and (lues (l f/v' is that it. avoids the nect-lssit;Y l'or thcuse of large independent stack; and at the same time the main and lirst heat is comnninicated to the middle portion ot the stove, wherebyloss of heat by radiation is avoided, and also greater facilities are of tered in cleaning the stove from foreign deposits. n

lv reason olf its little cost, our improved stove is of great advantage for use with small furnaces and as an auxiliary stove for large furnaces, whereit is not desirable to construct a large stack and Where the stacks already in use have not sufcient capacity to accommodate an additional stove.

We do not limit ourselves to the precise arrangement of the fines which We have shown and described; nor do We desire to claim, broadly, what is known as a three-Way hoff blast stove, as the same is shown and described in certain .foreign Letters Patent granted for inventions made by Camille Leveque, among which are British Letters Patent No. 3,376, dated October 18, 1873;,but

What We claim as our invention is- 1. A vertical hot-blast stove constructed 'with a gas-inlet leading to an uptake Hue or fines arranged centrally of the stove, a suitable number of downtake flues outside of the central ue, and a final uptake flue 0r lues outside of the downtake fines, a chimney-flue leading therefrom at the top of the stove, and valves at the gas-inlet and at the chimney adapted to control the flow of Iair and gas to and from the stove, substantially HORACE MASSIOKS. WALTER OROOKE.

Witnesses:

G. A. COWARD, JOHN GRAHAM,

Both, of ll/[llom, Cumberland.

Images