Metallurgy. the Art of Extracting Metals From Their Ores
Metallurgy. the Art of Extracting Metals From Their Ores
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In our eReader you can find the full English version of the book. Read Metallurgy. the Art of Extracting Metals From Their Ores Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Metallurgy. the Art of Extracting Metals From Their Ores
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Width of the shaft on a level with the twyers 3 ft. 10 in., and at 8 ft. from the bottom of the hearth 4 ft. ; from this point upwards it gradually contracts to 3 ft, 6 in. at the top. Width from back to front 2 ft. 8 in. at the tymp-iron, above which it continues the same to the height of 5 ft. 6 in., whence it gradually contracts until it is only 1 ft.
10 in. at the mouth. There are three twyers, which are nearly hori- zontal, or at most, only slightly inclined downwards and inwards. They are... 4 ft. above the hearth bottom ; 1 ft. 6 in. above the lower edge of the Hosted by Google 398 COPPER-SMELTING IN SWEDEN.
tymp-iron ; and 1 ft. 9 in. above the top of the fore-hearth. Measured from the centre of the nozzles they are 1 2 in. apart. The opening of the nozzles rather exceeds If in. in diameter, and that of the blast-pipes is If in. There are three ore-furnaces of the kind described above by Ahrend, and four on Bredberg's plan, except that they are furnished with a partition wall in the shaft from the back to the front.
What to read after Metallurgy. the Art of Extracting Metals From Their Ores?
You can find similar books in the "Read Also" column, or choose other free books by Percy, John. [from Old Catalog] to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Width of the shaft on a level with the twyers 3 ft. 10 in., and at 8 ft. from the bottom of the hearth 4 ft. ; from this point upwards it gradually contracts to 3 ft, 6 in. at the top. Width from back to front 2 ft. 8 in. at the tymp-iron, above which it continues the same to the height of 5 ft. 6 in., whence it gradually contracts until it is only 1 ft.
10 in. at the mouth. There are three twyers, which are nearly hori- zontal, or at most, only slightly inclined downwards and inwards. They are... 4 ft. above the hearth bottom ; 1 ft. 6 in. above the lower edge of the Hosted by Google 398 COPPER-SMELTING IN SWEDEN.
tymp-iron ; and 1 ft. 9 in. above the top of the fore-hearth. Measured from the centre of the nozzles they are 1 2 in. apart. The opening of the nozzles rather exceeds If in. in diameter, and that of the blast-pipes is If in. There are three ore-furnaces of the kind described above by Ahrend, and four on Bredberg's plan, except that they are furnished with a partition wall in the shaft from the back to the front.
What to read after Metallurgy. the Art of Extracting Metals From Their Ores?
You can find similar books in the "Read Also" column, or choose other free books by Percy, John. [from Old Catalog] to read onlineMoreLess
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