US66464A - Improved beige-kiln - Google Patents

Description

COREY & TURNER.

Brick Kiln. No. 66,464 Patented July 9, 1867.-

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CHARLES B. COREY AND CHARLES M. TURNER, OF CLEVELAND, OHIO. Letters Patent Nb. 66,464, dated July 9, 1867.

IMPROVED BRIGK-KILN.

TO ALL WHOM IT MAY CONCERN:

Be it known that we, CHARLES B.',COREY and CHARLES M. TURNER, of Cleveland, in the county of Cuyahoga, and State of Ohio, have invented certain new and useful improvements in Brick-Kilns; and we do hereby declare that the following is a full and complete description of the same, reference being bad to the accompany ing drawings, making a. part of this specification, in which- Figure l is a front view of the kiln.

Figure 2 is a side view. 4

Figure 3 is a vertical section.

Figures 4 and 5 are transverse sections.

Figures 6 and 7 detached views, which will be referred to.

Like letters of reference refer to like parts in the several views.

This kiln is constructed in two sections A B, fig. 1, of which A is the receiving room or draw-pit, and B the kiln in which the bricks are placed for burning, both of which are constructed of brick and of a sine according to the required capacity of the kiln. This draw-pit is immediately below the kiln, and communicates with the same by-rneans of acupola-shaft, C, figs. 3 and 5, which is the stack or chimney of the furnace, and through it the bricks are introduced into the kiln, as will hereafter be shown. On each side of the chamber is arranged a shaft, D, fig. 2, supported by and journalled in the stays E. On the rear ends of these shafts are keyed cogwheels, F, fig. 3, which are conjointly operated by a perpetual screw, G, constructed on a. shaft, H, crossing the rear side of the pit, and which is journalled in and supported by the standards I.' Attached to and wound around the shafts D are chains J which reach upward and over rollers The upper ends of these chains are connected to a bar, L, the ends of which as the bar moves upward and downward slide against the inner sides of'the ways M, and by which it is steadied and guided in its vertical movements. The upper part of the kiln B consists of a section of the shaft or cupola C, the length of which being the same as the height of the kiln, and is of the same size transversely as the pit below and the section 0 of the shaft or chimney above. The walls 1? of the shaft are straight from the ground or floor of the pit to the top, the height of which being more or less, as circumstances may demand. Around the central section or kiln just referred to are arranged the furnace or fire-places Q, one on each side near the corner, and penetrating inward to the further side of the shaft, and thus completing the kiln','as shown in fig. 4, in which figure Q are the grates, and R, fig. 5, the arches or top. These fire-places open directly into the kiln through the side fines R, penetrating the walls 1?, and into which the bricks are lowered'iu the following manner: The green bricks are laid up in open cubical piles or masses'of a size that will permit of their being introduced into' the shaft C. A pile thus laid up is shown in fig. 7. When thus laid up it is protected from falling down while-being removed to be placed in the kiln by enclosing it in the case S, fig. 6, the outside of which corresponds to the outside of the shaft, and the inside to the inside of the same. The pile on being removed to the top of the shaft or chimney is lowered into the same until it reaches the kiln, and is therein supported by the bars T, fig. 3, projected through the walls of the shaft through the vertical openings U, which openings reach from the bottom of the kiln to the floor of the pit immediately below. The ends of the bars just referred to rest upon the bars L attached to the chains J, and are thereby supported. Upon this first introduced pile is lowered another and another until the sectionof the shaft above the kiln is filled, which will be in number as the height of the shaft, and which, when full, fire is built in the furnaces surroundingthe first-introduced lot of brick whichis soon burned as the fire enters directly from the furnace through the side fines into the pile, being laid up in such a way as to leave lines or passages into which the heat ascends upward and through the superimposed piles of brick above. The first or lower pile, or rather thepile in the kiln, on being'suificiently burned, is then removed by lowering it down by means of the chain-shaft, &c., operated by the crank H, above described, into the draw-pit or chamber A into a car or truck V, figs. 1 and 2, which is run into the room on a tram-way, W. .The .pile when thus upon the truck is shown in fig. 3. It will be obvious that as the first pile is being lowered to the truck that the upper piles will descend at the same time, and thus when the first is on thetruck ready to be drawn out through the doors N, the next pile above will have descended into the kiln, and; the last in the number of piles, or the one nearest the top, will have descended, leaving a space which is immediately filled by the introduction of another pile of bricks, and so on, as the first pile is drawn from the pit below another is added above, and thus the stack or shaft is kept full. In order to prevent the piles of brick above the one lowered into the truck from descending when the loaded truck is drawn out, the bars T, referred to, are withdrawn and shoved through the stack between the top of the pile on the truck and the bottom of the pile in the kiln,'grooves a being formed in the bottom of each pile for that purpose. The chains are then wound up, and the bars L raised so as to secure the ends of the supporting .bars T; then on slightly lifting the piles abovereleases the pile on the truck from the weight of those above, which can then be drawn out and another run in'for the reception of the next pile that may be lowered down, and so on, as the lower pile is removed, another is placed in the stack above as before remarked. I

It will be evident that by this arrangement a large saving is made in the consumption of fuel-over the old way, as the fire is more immediately around the pile of brick and intcrfused through them, and as it'ascends upward to the top of the shaft or stack heating the-upper piles, and thus fitting them for the more direct action of the fire when in turn they are lowered into the kiln in order to complete the burning. In this manner of burning there is no waste of bricks in consequence of their being too remote from the fire to be burned, as is common in the old process, as in that all the outside bricks are either not burned at all, or but slightly so, and hence are of no value. So also all the bricks immediately around the fire are so much warped and cracked by too excessive heat as to render them worthless, and are therefore thrown away; but in this manner of burning them all this waste is avoided, as the heat is equally diffused throughout the whole pile and therefore are uniformly burned, and to any degree of hardness required; By thus applying the fire moreimmediately and generally to the kiln, the time required to accomplish the process of burning is very much lessened; hence alarger number of bricks can be burned in a given time than in any ordinary kiln.

What we claim as our improvement, and desire to secure by Letters Patent, is'

1. The arrangement of the furnaces Q with sidefiues R, in combination withthe kiln B, for the purpose and in the manner substantially as described, when placed over the suspended charges as they are successively lowered and removed from the kiln.

2. The shaft D, roller K, chains J, and bar L when operated coujointly by the screws G, in combination with the bars F, for the purpose and in the manner as set forth. I

8. We claim supporting the charges or piles of brick in the kiln by the employment of cross-bars T passed under said piles, and for lowering them down on to the truck V, and supporting the superimposed piles while the'lon'er pile is being drawn from the pit, substantially as described. v

4. We claim holding or supporting superimposed piles or charges of bricks in the kiln while being burned, and then discharging the same from said kiln by one continuous automatic operation.

' CHARLES E. COREY,

CHAS. M. TURNER.

Witnesses:

W. H. Bunnrnou, J. HOLMES.

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