Bulletin; Technical Series Volume 4, No. 3

Bulletin; Technical Series Volume 4, No. 3

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1918 edition. Excerpt: ...1089 922,906. Revolving furnace for volatizing ores.--Harry H. Hughes, Springfield, Mo. Filed April 5, 1909. Issued May 25, 1909. 1090 927,857. Process of reducing zinc ores.--Antoine H. Imbert, Grand-Montrouge, France, assignor to Imbert Process Company, New York, N. Y. Filed Sept. 8, 1908. Issued July 13, 1909. The process of reducing sulphide ores consisting in melting a mixture of the ore and peroxide of iron and treating the molten mixture with a reactive metal. 9 claims. 1091 932,279. Furnace for volatile metals.--Woldemar Hommel, London, England, assignor to Metals Extraction Corporation. Filed Nov. 30, 1908. Issued Aug. 24, 1909. 1092 936,245. Apparatus for filling zinc-retorts with granular material.--John D. James, Pulaski, Va. Fined Nov. 12, 1906. Issued Oct. 5, 1909. 6 claims. 1093 947,831. Manufacture of zinc.--Oscar Loiseau, Sclaign eaux, Belgium. Filed June 17, 1908. Issued February 1, 1910. A mixture of oxidized ore and carbon is subjected to the direct reducing action of carbon monoxide in a practically pure state, not mixed with nitrogen, at the temperature required for the reduction of the zinc. 1094 948,740. Process for obtaining zinc from zinciferous ma terials.--Herman Pape, Hamburg-Billwarder, Germany. Filed Sept. 30, 1909. Issued Feb. 8, 1910. Consists in feeding into a smelting furnace a charge of small fuel, briquets composed of pulverized zinciferous materials and a reducing agent, and finally lumps of zinciferous material, followed at predetermined intervals by a series of such charges superposed one on top of another. 1095 953,405. Smelting furnace.--Charles A. Wettengel, Caney, Kans., assignor to American Zinc, Lead and Smelting Company, Boston, Mass. Filed July 22, 1909. Issued March 29, 1910. 7 claims. 1096...show more

Product details

  • Paperback | 142 pages
  • 189 x 246 x 8mm | 268g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236897854
  • 9781236897855