This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1898 edition. Excerpt: ...the bottom of Sankey's and Benz' quarries. The brick are made from a 25 foot bed of shale which grades both at the top and bottom into sandstone, which is quarried and used as a building stone. 22. 3f. Lanz & Sans. Office, S. Twenty-ninth and Carson streets; vard, head of S. Thirty-fourth street.--This company ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1898 edition. Excerpt: ...the bottom of Sankey's and Benz' quarries. The brick are made from a 25 foot bed of shale which grades both at the top and bottom into sandstone, which is quarried and used as a building stone. 22. 3f. Lanz & Sans. Office, S. Twenty-ninth and Carson streets; vard, head of S. Thirty-fourth street.--This company manufactures about 20,000 brick per day, 20 per cent, being stock, 20 per cent, dry pressed, and the remainder common red. A few buff building brick have also been made from a bluish clay which occurs at the bottom of the quarry. The bricks are dried by steam and burned in fire updraft kilns, each having a capacity of 275,000, and are fired by natural gas. Although the company's market is almost entirely local, a few brick are shipped to points within ten miles of Pittsburgh via the Pittsburgh, Virginia and Charleston Railroad which passes directly below the works. At the top of the bank from which the shale and clay are obtained, is a ten-foot deposit of good sandstone which is being quarried by the company. Beneath this sandstone are ten feet of sandy clay containing fragments of impure sandstone. This clay grades into a compact, laminated shale thirty feet thick, which has a greenish gray color near the top, but it becomes decidedly blue as the bottom is approached. Under the shale, which forms the present bottom of the quarry, is a blue, calcareous clay which crumbles to small nodules on exposure to the atmosphere. The company has been experimenting with this material and has found that it can be made into very good buff brick. 23. South Sid Brick and Stone Co. Limited. Office and yard, head of S. Thirty-third street.--This company has been engaged in the manufacture of common red and stock brick for seven years. The daily output of...
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