US498642A - Brick-kiln - Google Patents

Description

2 Sheets-Sheet 1.

(No Model.)

BRICK KILN.

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2 sums-sheet R. GARRET.

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BRICK KEN.

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STATES PATENT QFFIGE.

ROBERT GARRET, OF FREEDOM, PENNSYLVANIA.-

BRICK-KILN.

SPECIFICATION forming part of Letters Patent No. 498,642, dated 'May 30, 1893. i

Application filed August 30, 1892-V Serial No. 444,586. (No model) i To a/ZZ whoml t may concern: I

Be it known that I, ROBERT GARRET, residing at Freedom, in the county of Beaver and State of Pennsylvania, have invented certain new and useful Improvements in Brick-Kilns, of which the following is a specication.

My invention relates to brick kilns in which a combined up and down draft isemployed, and it has for its object to provide a `kiln of this character simple in its construction, in which the heat products are thoroughly disseminated among the ware in such manner as to quickly and evenly burn it at all parts of the kiln.

lVith other objects inview, all of which will hereinafter be fully set forth, my in vention consists in the peculiar combination andl novelarrangement of parts, all of which will hereinafter be fully described in the specification andparticularlypointedout in the claims, reference being had to the accompanying drawings, in which- Figure l is la horizontal section of my improved brick kiln on the lines l-l 2-2 3 3 and 4 4 Fig. 2. Fig. 2 is alongitudinal sectionthereof on the line 2 2 Fig. l and Figs. 3 and 4 are detail views hereinafter more particularly referred to.

Referring to the accompanying drawingsl-il indicates the kiln body whichis preferably circular in shape as shown, although in some instances it may be desirable tomake it square or other shape; and-B indicates the ioor, which is practically a solid one it being formed of bricks laid alternately on their flat sides and on edge, with an inch of dirt between themto make the floor air tight.

Beneath the ioor are arranged four independent flue sections C, each of which is formed with a series of bridge walls c, spaced apart,"whereby a series of heat chambers c', are formed to thoroughly spread the heat under the door. Each flue section C is connected with a furnace D, and such sections communicate with a series of short vertical flues E, which open up through the floor B and discharge into the interior of the kiln.

Below the door Iiues C are arranged the main draft ues F which extend under the kiln floor at right angles to each other, and are connected at their outer ends withthe stacks G. These [lues F communicate with the kiln chamber through a series of down draft openings H which extend Afrom such dues up through the kiln floor. Each of the draft lues F is horizontally divided as at F whereby lower damp air chambers ll2 are formed, with which lthe door lines communicate, through the flue sections l. such chamber being formed by setting the bricks alter- .nately endwise and flat with `dirt between them to render the division wall practically By this construction-I am enabled itas it were, in a semi dry state, before the furnaces are started. It will thus be seen that theware at the bottom will thereby retain its original shape, and being in a partially dry state will thereby burn more uniform in a less time and with a much less fuel consumption than in the ordinary way.

The construction so far described, provides for an up draft burn, to combine with it an additional up draft, or a combined up and down draft, I employ the means most clearly shown in Fig. 2 of the drawings, such means consisting of four furnaces J arranged intermediate the furnaces D but at a point above the kiln floor such furnaces discharging into pockets or fire chambers K projected into the interior of the kiln chamber and open at the top as shown. y

With each of the furnaces communicates a iiue or channelway L formed in the side walls of the kiln, (see Figs. 2 and 4) which have dampers Z near their upper ends and which extend down and communicate with door lines, fed from the lower furnaces D. It will be noticed that by closing the dampers in the dues L the fire-from the furnaces J will be discharged into the pockets K, pass over the tops thereof, enter the ware and be drawn down to comminglewith the up draft heat and IOO pass off with it through the down draft flues in the floor, into the stack lines. It' desired the dampers Z may be opened and a part of the heat of the furnaces J will be deliected and carried into the floor fines.

By arranging a number of furnaces .leach with independent lire pockets at its rear end, and a number of door flue sections with an independent furnaceD for each, the re in the several furnaces D and J can be so regulated as the condition ofthe Ware at the different portions of the kiln may Warrant.

The kiln chamber dome is formed with the usual cooling outletsin its top and the stacks with the usual dainpers. v

Y Having thus described my invention, whatI claim, and desire to secure by Letters Patent, ls-

1. A brick kiln having a series of hot air chambers under the floor, and having branch outlets opening into the kiln chamber, stack lilies having branch lues opening through such kiln floor, furnaces discharging into the hot air chambers7 openings in the kiln Wall above the floor, a second set of furnaces dis'- charging into the aforesaid openings in the kiln Wall, and Valved Iiues connecting such openings and the hot air chambers under the kiln floor, all arranged substantially as shown and described, whereby a combined up and down draft is obtained and whereby a p0rtion of the heat products of the upper furnaces can be deflected to discharge into the hot air chambers under the floor to pass out with the up draft, as set forth.

2. In a brick kiln having a down draft, the combination With the stack and the kiln chamber, of stack fines having damp air compartments communicating with kiln chamber and opening into the stack substantially as and for the purpose described.

3. A brick kiln having a non slatted floor section, a series ofindependent hot air chambers under such floor having discharge tlues opening into the kiln chamber, furnaces for each of such hot-air chambers, the stacks, the stack fines having flue sections opening into the kiln chamber, said stack flues each formed with a damp air compartment openinginto the stack and flue ways connecting the hot air chambers with the damp air compartments substantially as and for the purpose described.`

4C. An improved brick kiln having its iioor provided with discharge lines, the stack ues under such door, with which such discharge fines connect, said stack flues having damp air compartments, a series of hot air chambers under the fioor having fines opening up through such tloor, the furnaces D, discharging into' the said hot airchambers, a series ofv pockets K openat their top in the kiln cham-V ber a series of furnaces J discharging into such pockets the Valved flues L connecting the furnaces J'and the hot airchambers and the iiues I connecting such hot air chambers with the damp air compartments in the stack fines all arranged substantially as shown and for the purposes described.

ROBERT GARRET.

Wtnessesa A HENRY HARTZEL, J Essn CUNNINGHAM.

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