Journal . con product andmethod of continuously producing the alloys of definite coynpositions. H. , Lockport, , Assignor to ElectroMetallurgical Co. Pats. (A) 1,134,127,(B) 1,134,128, and (c) 1,134,129, Apr. 6, of appl., July 30, Dec. 1, and Dec. 15,1909. Renewed (A) and (B) Sept. 1. and (c)Sept. 17, 1914. (A) A PRODUCT consisting of, or containing,bright, hard, brittle, plate-like crystals corres-ponding to the formula FcaSij, is prepared bymaintaioing at or above a predeterminedcritical temperature a charge calculated toproduce ferrosilicon co
Journal . con product andmethod of continuously producing the alloys of definite coynpositions. H. , Lockport, , Assignor to ElectroMetallurgical Co. Pats. (A) 1,134,127,(B) 1,134,128, and (c) 1,134,129, Apr. 6, of appl., July 30, Dec. 1, and Dec. 15,1909. Renewed (A) and (B) Sept. 1. and (c)Sept. 17, 1914. (A) A PRODUCT consisting of, or containing,bright, hard, brittle, plate-like crystals corres-ponding to the formula FcaSij, is prepared bymaintaioing at or above a predeterminedcritical temperature a charge calculated toproduce ferrosilicon containing 53—54-5% Si. (B) FeiTOsUicon of any definite composition isproduced continuously as described imder (a),the critical temperature increasing with thesilicon content desired. (c) Ferrosilicon ofdefinite composition and constitution, composed of solid mixtures of definite compounds con-taining iron and silicon is claimed.—W. E. F. P. Furnaces; Gas-fired- Metal-heating Pats. (A) 7238,. I. Hall. Birmingham. starch 23, 1914, and (B) 3036 of 1915, date of appl., March 23, 1914. (A) In a furnace heated by low-pressure gas,an end view of which is shown in the figure, gas is supplied tothe bm-ners througha pipe, 7, from theoutlet, 13, of a regu-lator, 11, actuatedby a thermostat, 10,in the heatingchamber, 1, or in aseparate chamber ad-jacent to it. Severalheating chambers,one above the other,and each provided\\ith a temperature-indicating device,may be used. Ashield, 14, preventsthe flame from im-pinging on thecharge, (b) The gasburners, 6, are attach-ed to bosses arrang-ed along the top ofa relatively largecylindrical chamber,5. (See also 21,072 of 1912;26,583 and 28,346 of 1913 ; 5198, 5888, and6016ofl914 ; this J., 1915,16,34, 234.)— Furnace for the cupellation or refining of silver, glass bending, enamelling, etc. ; Gas-fired . L. F. Tooth, London. Eng. Pat. 7633, March 26,1914. Gas burners, mclined upwards, are arranged inopenings at one
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectchemist, bookyear1882
