Pottery Kilns

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1. The Revelation Kilns For Pottery



These kilns embrace entirely new features, both in construction and method of firing. They are built throughout of the finest grade of fire-brick, which has been shrunk by the highest heat possible. This fire-brick is backed by a heavy wall of asbestos, reducing external radiation to a minimum. A tubular lining, through which the flames pass, gives two-thirds more interior radiating surface than a flat wall. No saggers are needed, as the flames do not come in contact with the ware.

Kerosene oil, which is obtainable in all parts of the world, is used as a fuel, and by our method, produces a greater, quicker and purer combustion than any other fuel, no coal to be shoveled and no ashes to be removed. No blast is required. Connection with a natural draught, in a strongly built chimney is all that is necessary for perfect operation. The same kiln may be used either for Biscuit or Glaze, and the ware, as well as test cones, may be watched continually through peep holes, or tests may be withdrawn.

There are sufficient burners to make the fire come up as quickly as desirable, and the heat is under perfect control at all times, in all parts of the kiln. Each burner has a separate combustion chamber so that each one works independently of the others.

There are fire-brick dampers or cut-offs, by which the heat may be held back, and as much or as little air may be admitted below, as one chooses. A heavy door on a Crane Hinge does away with the bricking up each time.

The more modern method, adopted by up-to-date potters, points toward the use of smaller furnaces, and quicker firings, doing away with or supplementing the large kilns, which take so long to place, to fire, and to cool. Small kilns will both fire and cool more quickly, often with greater advantage in results. At the same time, they may be so operated as to fire or to hold a "soaking heat' as long as any particular body may demand. The chances for possible loss, which comes at times, in firing large quantities, are greatly decreased. By our method, we are able to attain far higher heats than are necessary for any ceramic production.

These kilns opened a field for investigation, which had been closed for the lack of a portable high heat kiln. For the first time in the annals of ceramic industry the development of pottery and porcelain was made possible to amateurs and private workers.

No high heat equipment has ever been devised, which would create alternately reducing and oxidizing temperatures so quickly and so accurately. Up to this time, the character of superheated atmosphere has been almost entirely a matter of conjecture, and largely disappointing guess work. But, with our device, this important feature is absolutely under control at all times. If desired, the operator can produce or clear away reducing conditions almost instantaneously. On the other hand, a pure unchanging oxidizing heat may be maintained throughout, as there is always an opportunity to admit the maximum amount of air into both combustion chamber and oven proper. With kerosene oil there is no possibility of discoloration, from gases or sulphur, the latter of which is always a constant bugbear and menace to all potters.

Aside from the cuts shown in the catalogue, we construct to order kilns and furnaces of all sizes, and for all high heat purposes. When we know the requirements, we are pleased to furnish estimate of cost for any special kiln.