US107735A - Improvement in kilns - Google Patents

Description

1P.. c. TAYLoR.

` A `Lime Kiln. N"107735 Patented sept'. 27, 1870.

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. chamber from the rock in the other.

PETER o.' TAYLOR, OE sAN ANTONIO, TExAs.

IMPROVEMENT [N KILNS.

Specification forming part of Letters Patent No. 107,735, dated September 27, 1870.

To all 'whom it may concern:

Beit known thatV I, PETER U. TAYLoR,of San Antonio, in the county of Bexar and State of Texas, have invented a new anduseful Improvement in Kilns, and I do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawing, making a part of this specification, in which- Figure 1 is a sectional elevation in the line a: x, Fig. 3. Fig. 2 isa side elevation. Fig. 3 is a horizontal section in the line y y, Fig. 2; and Fig. 4 is a detached plan of the door and cut-off at the bottom of the kiln.

This invention relates especially to limekilns, and has for its object to strengthen the same against the disintegrating eects of the expansion of the masonry, due to the heat evolved from the combustion of fuel in the fire.

chamber, and also to cut a clean section through the lime at the mouth of the discharging-funnel whenever the door of the same is to be closed after having been opened for the discharge oflimc. l

In the drawing, A is the masonry of a kiln. a is the lire-chamber; b, the rock-chamber; c, the discharging-funnel; cl al, Fig. 2, the ashchambers; ce, Fig. 2, the mouths of the firechambeigwhich are supposed to be provided with doors; f, Fig. 3, the vertical pillars within the nre-chamber, and beneath the rock-chamber, whose office is to separate the fuel in one These pillars are arranged in a curved line, and so that the intervals h between the two foremost ones` and the part A of the kiln that stands between the doors of the lire-chamber may face the said doors, so that an instrument thrust through either of the latter may be passed through thc intervals h, and be employed in raking down the burnt rock. Heretofore, the 'pillars f have been placed in a rectangle,

` so that no instrument thrust through the doors of the lire-chamber could pass between the pillars, and holes are, therefore, usually made through the sides of ordinary kilns, through which the pokers may be introduced. But these holes cannot well be made as large as the mouths e of the fire-chamber, so that, by arran ging the pillars fin theposition described,

space is gained for moving the pokers about in, and to see through. As a matter of course, the heat generated Within the fire-chamber eX- pands the adjacent masonry of the kiln,`and tends to cause it to crumble, crack, and," inally, to fall to pieces and become useless. This is, in fact, one of the greatest mischiefs result- -ing from the present system of manufacturing lime. To remedy it I employ stout wooden beamsz' z', which are bound around three sides of thekiln, at the point where the expansion force is greatest, by means of diagonal braces k, passed through the corners of the kiln, and a crossbrace, l, passed through the front part of the kiln just above the irechamber, and con noting their imperfections, and devising means to remedy them, so far as practicable. In nearly all cases I have found them giving out for lack of properbraces. I found this could not result from lack of some form, or sufficient number of braces or tie-rods, since those most completely'furnished in that respect were frequently in the worst condition. I was soon led to the conclusion the difficulty lay in the arrangement of the braces or tie-rods, it being such that they were exposed for nearly their whole length to heat more or less intense. To remedy the difficulty, as also to lessen the original cost of constructing kilns, and, also, of so frequent repair by inserting new tie-rods, and rebuilding the wall, I devised this plan of ar ranging the braces or tie-rods at the corners ofthe kiln. This plan requires scarcely half the aggregate length of rods employed in other kilns, proportionally diminishes their expansion, removes them the farthest possible from the influence of heat in the fire-chamber, and yet applies their straining force to the outer beams 'i at or near their centers, where it is most required.

The discharging-funnel c is provided with a vertioally-swinging door, o, Fi g. 4, at its lower extremity. The door o is opened when lime is t) be discharged. 'lo obviate any ditliculty t`1at might otherwise be experienced in closing the door after a discharge of lime, I provide a serrated head, r, Fig. 4, furnished with a handle, s, pivoted to an ear that projects outward from the lower end of the funnel, and operating in a horizontal slot in the side of the same. Prior to discharging lime, the head i' must, of course, be swung open. Then the door is to be closed again, the head is previously drawn across the mouth of the funnel by means et the handle s, the teeth of the head making a drawing cut, and removing all obstacles to the close of the door.

Having thus described my invention, what I cla-im as new, and desire to secure by Letters Patent, is-

l. Ihe improved arrangement, in a limekiln, ofthe diagonal braces or tie-rods 7.' with they beams f, brace c, and straps 11, as and for the purpose specified.

2. The combination of the serrated head o', levers s, and funnel c, as and for the purpose set forth.

3. The arrangement, in the fire-chambers ay a of the kiln A, the same diverging radially, or nearly so, from opposite sides of the chamber b, and proceeding thence outwardly, in parallcl lines, to the front of the kiln, of the spaces or intervals h and pillars j', all constructed substantially as and for the purpose specified.

To the above specification of my invention I have signed my hand this 2d day of June, A. D. 1870.

P. C. TAYLOP.

Witnesses SoLoN C. KEMOX, (l1-ms. A. PETTIT.

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