US448333A - gamble - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1.

J. E. GAMBLE.

BRICK KILN. No. 448,333. Patented Mar. 17, 189-1.

(No Model.) 2 Sheets-Sheet 2. J. E. GAMBLE.

BRICK KILN.

No. 448,333. Patented Mar. 17 1891.

. UNITED STATES Parent rrrcn.

JOHN E. GAMBLE, OF EAST LIVERPOOL, OHIO, ASSIGNOR OF ONE-HALF TO XVILLIAM BRUNT, OF SAME PLACE.

BRICK-KILN.

SPECIFICATION forming part of Letters Patent No. 448,333, dated March 17, 1891..

Application filed January 81,1890. Serial No. 338,716! (No model.)

To (ZZZ whom it may concern.-

Be it known that I, JOHN E. GAMBLE, a citizen of East Liverpool, in the county of O- lumbiana and State of Ohio, have invented certain new and useful Improvements in Pottery-Kilns and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to to make and use the same.

My invention relates to an improvement in pottery-kilns, and has for its object to so construct the kiln that heat will be made to circulate throughout the entire kiln in such a is manner as to heat the same uniformly in all parts of its interior.

A further object is to produce a potterykiln so constructed and arranged that theinterior thereof will be heated uniformly with a comparatively small amount of fuel.

A further object is to provide a potterykiln having a dome or cone and so constructed that heat may be uniformly distributed throughout the interior of the kiln proper be- 2 5 fore entering the dome or cone, and providing means in such dome or cone for regulating the draft through thekiln.

W'ith these objects in view my invention consists in certain novel features of con- 0 struction and combinations and arrangements of parts, as hereinafter set forth, and pointed out in the claim.

In the accompanying drawings, Figure l is an elevation of my improved kiln, partly in section. Fig. 2 is a view on the line at m of Fig. 1. Fig. 3 is an enlarged view illustrating a portion of the system of pipes or flues located in the base of the kiln.

A represents the kiln, over the crown U of 40 which a cone or dome E is located and left open at its apex. Located at the base and extending around the circumference of the kiln is a series of furnaces A, each furnace comprising a pit a, a grate b, and an opening for a door 0. Communicating with each furnace A is a line B, which fines extend upwardly within the kiln in close proximity to the wall of the kiln and preferably to points about midway between the top and bottom thereof, openings g being made in the Wall of the kiln just over the furnace-doors c for the admission of air into the lines B, and other small air-holes g may be made in the wall of the kiln above the fines B. The bottomF of the kiln will preferably be located a short dis- 5 5 tance from the ground and may be made of brick or other suitable material, and located a short distance above the bottom F is a floor F thus producing a space Fdbetween the bottom F and the floor F. In the space F a series of pipes Gis inserted, and consists of pipes h, pipes 71., communicating at one end with the pipes 71, and short pipes 7L2, which connect the pipes h hat points between their ends. The pipes 71, with which the remaining pipes of the system communicate, as above explained,are closed at theirouter ends, and at their inner ends communicate with a central or main stack M, which, starting from the bottom F, extends centrally through the kiln and through an opening in the crown C. This stack may be made of a series of sectionssecured together by tongues and grooves. The floor F is provided with a series of perforations (Z, which communicate with the pipes G. A rod or bar c is secured in the dome or cone Eand adapted to extend across the center of the same, being provided at a point immediately over the stack M with a bracket 6, which latter in turn supports a pulley 6 A cord or rope is passed over the pulley c and has secured to one end a cap or damper D, the other extremity of the rope being carried out an opening or window '5 in the dome, by which means the damper D 8 5 is suspended over the outlet of the stack M, and may be readily operated from outside the kiln to regulate the draft of air through the same. Fires being built in the mouths or furnaces A, heat will ascend through the 0 ilues B to the crown of the kiln, and then, being deflected by the concave interior surface of the crown, will descend to the floor F and pass through the perforations (Z into the series of pipes G, from whence the heated 9 5 air passes into the stack hi, through which it passes into the dome or cone E, and finally through the open upper end of the cone into the open air. An opening or doorway II is provided, through which persons may enter to fill the kiln with pottery to be burned. An opening may, if desired, be made in the crown 0, through which the hot air may escape when it is desired to permit the kiln to cool off, the opening being normally closed by means of a plug b.

5 Having fully described myinvention, What I claim as new, and desire to secure by Letters Patent, is-

The combination, in a kiln, of the outer 'wall terminating at the top in a dome, furro naces arranged around the base of the wall, internal flues leading from the furnaces and terminating at suitable distance above the furnaces, base-Hues constructed to receive the heated air, and central stack having openings at the bottom communicating with the base- 15 fines, said stack terminating in the dome of the kiln at its upper end, substantially as set forth.

In testimony whereof I have signed this specification in the presence of two subscrib- 2o ing witnesses.

JOHN E. GAMBLE.

\Vitnesses:

J. H. BRooKEs, JOHN .T. PURINTON.

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