OCR Text |
Show kilns for burning vitrified bricks, which arc yielding very promising results. The light clays are very hard and substantial, sub-stantial, and well-suited to all sorts of build-ng build-ng purposes. ' The company was organized eighteen months ago aud has a paid-iu capital of $50,. 000. It has been practically experimenting up to last May, when business operations were commenced, and it is now permanently located, the sales being quite encouraging aud as large as could bo expected. The capacity ca-pacity of their yard is 1)0,000 brick a day, which average in price about $25 a thousand, thous-and, while that imported from the cast sells at $05 and f 75 per thousand, making the article ar-ticle preferable, both on account of the reasonable rea-sonable price and for the reason it has been pronounced by Salt Lake architects as good as any that has ever been shipped to the city. Most of the company's product has been sold to parties in Utah, for it has not been found expedient to export extensively on account of a discrimination in freight rates, but orders have beeu received from Montana and Nevada which will shortly necessitate ne-cessitate export shipments. '' There is a company, which has recently been formed, known as the L'tah Pressed Brick and Tile Co., whose clay deposits are situated in Foppertou place on the northeast north-east bench. Samples from these beds show the clay to be of good quality. The company com-pany has not commenced operations. Besides Be-sides these, there are other clay deposits from which common bricks are made. Messrs. Tnddcnham A: Brains own a brick yard in the 21st Ward, the capacity of which is 40,000 brick a day. W. S. Simpkins, the oldest brickmakcr in the territory, also owns a yard at Bountiful, with a capacity of (50,000 brick a day. At Cottonwood Cahoon fc Kaynes own a brickyard of 40,000 capacity. Daniel Frey's brickyard, south of Bountiful, has a capacity of 20,000 brick a day, which is wire cut. In Bountiful Viglini fc Cor-Ias Cor-Ias own a brickyard of 4 0,000 daily capacity, ca-pacity, and west of the city, across the Jordan, Jor-dan, is the brickyard of Smith & Reybold, of 20,000 capacity. All of the bricks made from this clay are suitable for structural purposes iu backing up the compressed brick. These yards in operatiou produce about 75 per cent of their respective capacities, capac-ities, selling their product principally to parties in Salt Lake City. The-other brickyards principally employ hand work, and their capacities are not very extensive. Fire clay lias been known to exist in the territory for the past twenty-two years, though the native product which was not used up to about two years ago, was not considered strictly tirst-class. and before that time it was necessary to import either Eaglish or Colorado tire brick for metallurgical purposes, for the local article so far produced was unlit for rever-butory rever-butory arches and lacking in cohesive quality for the linings of blast furnaces for lead smelting. A quantity was then discovered dis-covered about twenty-five miles south of Salt Lake City near the line of the Union Pacific railroad. It bears the highest physical physi-cal tests, and contains no soluble matter. The natural clay contains 12.8 v.ater. Calcined, Cal-cined, it has 05.40 silica, 24.00 alumina, 5.36 lime, 4.32 magnesia. It is very refractory, notwithstanding the high percentages of alkaline earths in this clay, the smallest knife-edge pieces resisting fusion in the highest heat of a crucible assay furnace. The mode of occurrences of lime in clays, and the treatment of the raw materials in the process of manufacture, have much to do wilh the behavior of the brick produced. When lime is uniformly distributed, it becomes be-comes the base of an infusible 6ilicate. Some of the best fire clays of France approximate ap-proximate very closely to the above in composition. com-position. A clay from Rush valley has excited some interest on account of its graphitic appearance, appear-ance, but low physical tests condemned it for metallurgical uses, a mass of it fusing to complete distortion. The soapstone roof of a Chalk creek coal mine was analized, such roofs being rare in Utah, for most of our coal lies between sandstone strata. It was found to contain a high percentage of silica. The clay that has beeu used most extensively exten-sively iu Utah, is the well-known article from Bingham. The deposit is owned by Elias Morris, aud used for the manufacture of tire bricks. He has been manufacturing them since 1870, and uses from 400 to 500 tons of clay a year. It meets with every requirement re-quirement of the architect, ancl is well suited for furnaces and boilers. It composition compo-sition is as follows: 02.00 silica, 22.00 alumina, alumi-na, G. 10 protoxide of iron, 2.22 carbonate of lime, 05.00 carbonate of magnesia, 6.20 combined com-bined water. Mr. Morris has improved the quality of his fire brick by the use of more silica, which practically lowers the percentage of irou oxide in his mixtures. He has tried clays from different localities, but few yield such satisfactory results as that from Bingham, Bing-ham, and those which are very good are not deposited in sufficient quantities to justify manufacture, nor are they convenient to the markets, on account of the lack of railroad facilities. All over the country where clays from the Wales coal region have been used, this clay is becoming popular and is iu demand. It is equal in quality to any clay used, and can be placed on the markets at prices as low if not lower than those of any other clay product. It will thus be seen that our native clay products are -very desirable,- and can successfully suc-cessfully compete with those of any clay, producing locality now known. (J. L. Browne. . , UTAH CLAYS. The clay deposits' of Utah are distributed at intervals throughout the territory, and yield vast supplies of different varieties, suitable for all the different purposes for which clay is used. A great deal is of fine quality, being hard, durable and neat in appearance, ap-pearance, while there is any quantity of that which is used for making common bricks suitable for many purposes of construction. con-struction. There is a very tine deposit of black clay, overlaying a strata of white cube clay, at JIarrisville, Weber county, four and a half Juiies north of Ogden, on the Utah Northern railroad. It extends over fifty acres, and is two hundred feet in thickness. This clay has not yet been analyzed, but has been found very lirm and durable, and stands testing better than any other in the territory. From the black clay red briek is made, which Is especially suitable for foundation work, and from the white, cream, buff and pink, bricks are made which are particularly adapted for the construction of the fronts and walls of buildings. These light bricks are considered by many the best of their kind in the territory. This deposit is owned by the Anderson Pressed Brick company, which has beeu in existence for three years aud is now carrying carry-ing on a very prosperous business, their product amounting to about 0,000,000 bricks a year. The company sends supplies to all the principal cities in Montana, Idaho and Utah. It has sold this year over 3,000,000 bricks to parties in Salt Lake City, and its sales promise to greatly exceed those of any previous year. It has also made large export sales, besides which it has several contracts for the erection of buildings here, amonir which are three school houses, the Aucrbach block aud the Richards block. There are seventy-five men almost constantly con-stantly employed in the brickyard. The briek Sell at from SS.50 to $25.00 per thousand, according ac-cording to their quality. The Salt Lake Pressed Brick Co. owns rlay deposits live miles south of Mill creek. They consist of five varieties, two of shale and three of clay. The shale is composed of soft stone, carrying a large percentage of Iron. It Is entirely free from lime or alkali. al-kali. Following is its analysis: Silica, 40.41; alumina, 33.20; iron, 9.33; magnesia, 1.10. The clays are of the white, pink and buff Varieties. Experiments arc being made in vitrifying the shale bricks, for paving purposes, pur-poses, in California, where there are large |