US510819A - Downdraft brick-kiln - Google Patents

Description

(No Model.)

- 2 Sheets-Sheet 1. L. H. REPPELL.

DOWNDRAFT BRICK KILN. No. 510,819. Patented Dec. 12, 1893.

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L. H. REPPELL.

' DOWNDRAFT BRICK KILN. No. 510,813. Patented Die. 12, 1893.

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LOUIS I-I. REPPELL, OF KANSASOITY, ASSIGNOR TO WILLIAM R. REPPELL, OF ST. LOUIS, MISSOURI.

VDOWNDRAFT BRICK-VKILN.

SPECIFICATION forming part of Letters Patent No. 510,819, dated December 12, 1893.

Application filed January 18. 1893. Serial No. 458,825. (No model.)-

To all whom it may concern.-

Be it known that I, LoUIs I-I.REPPELL, of Kansas City, in the county of Jackson and State of Missouri, have invented certain new andusefulImprovements in Downdraft Brick- Kilns, of which the following is a full, clear,

and exact description, reference being had to my improved kiln. Fig. II, represents a horizontal section of the same.

Referring to the drawings: 1, represents the Walls of the kill, and 2, the roof, which is arched. I

3, represents the braces commonly used in the construction of brick kilns, and 4, represents tie rods extending across the top of the kiln, by which said braces are connected.

5, represents the furnaces, of which there is a series, on each side of the kiln proper.

6, represents the interior of the kiln, in which the bricks, 7, are placed, preparatory to being burned, the body of the brick being laid in the usual form, with spaces intervening so that the heat may readily pass between the same.

8, represents the middle or central vertical wall or division formed of the same material or of the same kind of brick which it is desired to burn, the brick in said wall being laid close to each other without any intervening space, in order to prevent the heat current from passing between the same or crossing the pile of brick from one side to the other side of the kiln.

9, represents supporting bricks built up with green brick, on which a portionof-the brick to be burned rests. 7

10, represents intervening spaces between the brick, 9, thus forming lateral fines or channels for-conducting the heat to the fines running lengthwise of the kiln. The green brick are laid upon the brick, 9, openly, so as to admit the passage of the heat down into the fines, 10; the brick, 9, forming the fines being set on edge upon the fixed hearth, 11, which extends the length of the kiln,at either side of the tines running lengthwise of the ered on top by means of perforated tile, 19, laid upon the cross tiles, 18, thus permitting the discharge of a certain amount of heat atoms directly into the main flnes,'the greater portion of the heat atoms, however, being drawn down vertically through the brick into the fines, 10, passing through the tile, 17, into the auxiliary fines, 14, 15, and thenceontJ through the apertures, 16, into the main fines, 12, 13, said main fines connecting with the smoke stack. (Not shown.)

By constructing my kiln with the solid hearth, 11, and forming the lateral fine walls, 9, of green brick, which are removed each time the kiln is cleaned out or emptied, the walls of the fines and the covering being burned into merchantable brick, the same as the balance of the brick within the kiln, I am enabled to readily clean out my kiln, removingsand from the same, which is used in sanding the brick inside the kiln, without having to remove any false bottom, to be replaced with considerable labor and expense, entirely dispensing with a false bottom, except over the tines running lengthwise of the kiln, the fines running lengthwise being easily cleaned when necessary by removing the perforated tile located over the same; or otherwise.

20, represents the bags or flash walls located to The rear of the furnaces, 5, against which the flame and heat deflect, the heat passing up through the chamber, 21, between the flash walls and the walls of the kiln. The flash walls are preferably made in arch shape, having the ends of the arches secured by being let into the kiln, as shown at 22. Said flash walls extend up in the body of the kiln for some distance to prevent the outer rows of brick from being burned too much, and deflectingthe flame-and heat to the top of the kiln from whence it passes down ward through the body of the brick, as shown by arrows. Situated to the rear of the flash wall, 20, is a perforated partition, 23, the flash wall, 20,extending slightly above the partition, 23. (See Fig. I.)

24, represents a tile having its lower end resting on the body of the brick to be burned, as shown at 25, and its upper end resting against the partition, 23, as shown at 26, said tiling being inclined outwardly and upwardly from its support on the brick. The purpose of said inclined tile is to prevent the cur rent of heat from passing directly down alongside of the perforated partition, 23, and burning the same to too high a degree. By resting the lower end of the inclined tile, 24, on the top of the brick, said tile will descend as the brick are burned, and consequently shrunk, the outer end of said tile following down the perforated wall, 23, thus always remaining in proper position to perform its functions, no matter what amount of shrinkage there may be in the process of burning the brick. It will be readily understood that the tile, 24, which has been spoken of singly, is composed of a series of tiles extending the full length of the kiln.

27, represents peep holes located at the end of the kiln, through which the operator may look into the chamber, 21, and judge of the amount of heat passing through the same. The central close wall, 8, may be constructed of the same material as the balance of the brick, and can be taken out with each kiln of brick, and a new one built with fresh material, as the kiln is filled, said wall thus not being in the way in emptying the kiln, and also not making any lost space in the body of the kiln.

I claim as my invention- 1. In a brick kiln, the combination of cen tral flues extending the full length of the kiln; auxiliary adjoining parallel flues also extending the full length of the kiln, and having connection with the main fines; and lateral flues connecting with said auxiliary fines; substantially as described.

2. In a brick kiln, the combination of a central flue; auxiliary adjoining parallel flues connecting therewith; and lateral flues connecting with the auxiliary flues, the bottom of said lateral flues being on a level with the top of the auxiliary flues; substantially as and for the purpose set forth.

3. In a brick kiln, the combination of a central flue running lengthwise of the kiln; auxiliary flues runninglength wise of the kiln, and connected with the central flue; a permanent hearth constructed on a level with the top of said auxiliary dues; and lateral flues connected with said auxiliary fines, and having their sides and top constructed in sections and formed of the same material that is placed within the kiln to be burned so that as each kiln is emptied said lateral flues may be removed; substantially as and for the purpose set forth.

4:. In a brick kiln the combination of the furnace walls forming the flues for the furnace, the bricks set in the kiln adjacent to the walls, and deflector tilesresting on the bricks and leaning against the walls, substantially as described.

5. The within-described process of building the bricks within the kiln, to be burned, consisting of laying a portion of the bricks in close relation to form a dividing wall, laying the balance of the bricks openly, and finally laying a series of tiles on the bricks and leaning against the walls, substantially as described.

LOUIS H. REPPELL.

Vitnesses:

J AS. E. KNIGHT, F. E. MULLETT.

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