Journal . ic acid, in which it acts as cathode.—A. S. Ahiminium and alloys co7itaining it ; Flux for use in the welding or soldering of . E. Thaulow, Frederiksberg, Denmark. Eng. Pat. 5350,Starch 2, 1914. Under Int. Conv., Dec. 16, 1913. A FLUX for use in welding or soldering aluminiumand its alloys, and having a lower melting pointthan aluminium, is composed of a borate and oneor more bisulphates of alkali metals. An exampleis borax 96 and sodium bisulphate 4 parts.—T. St. Smelting-fumace. T. M. Kekich, Assignor to , Aire Libre, Mexico. Pat. 1,126,028,Jan. 26, 1915. Date of appl
Journal . ic acid, in which it acts as cathode.—A. S. Ahiminium and alloys co7itaining it ; Flux for use in the welding or soldering of . E. Thaulow, Frederiksberg, Denmark. Eng. Pat. 5350,Starch 2, 1914. Under Int. Conv., Dec. 16, 1913. A FLUX for use in welding or soldering aluminiumand its alloys, and having a lower melting pointthan aluminium, is composed of a borate and oneor more bisulphates of alkali metals. An exampleis borax 96 and sodium bisulphate 4 parts.—T. St. Smelting-fumace. T. M. Kekich, Assignor to , Aire Libre, Mexico. Pat. 1,126,028,Jan. 26, 1915. Date of appl., July 3, 1912 ;renewed June 25, a bla-st-furnace of the type wherein the consti-tuents of the charge are arranged in layers, two Vol XXXIV , No. «.] Ci,. X.—METALS ; METALLURGY, INCLUDING ELECTRO-METALLURGY. 287 sets of tnyires i-ontrollod independently arearranged on opposite sides of tlie furnaie and ntdifferent levels.—T. St. liflnv .S. I;Apri on aat. I1 11. ml F. .127,21 IDl-l A. 04,. Smeltitiij [rrlort] Juriuin: V.(urnow. Pittsliiuyli. Kans. I1-Vl). 2. Date of appl., TiiK furnace (see tig.) eouiprises apair of retort-heat incchambers, arrangedback to ba<-k. andcomnmnicating atthe top. Heatinggases from a Uro-boxat the lower part ofthe first (right-hand)chamber traverse thetwo chambers in suc-cession and pass outat the bottom of thes«cond. .\ system ofpipes along the ex-terior of the furnacrdelivers air under thefire-box and to tininner sides and top nlthe second chamber,whii-li is connccteilwith the stack bytwo flues adapted tobe used alternatelv.—W. E. F. P. Carnolile ores; Mithml oj treathiij eomjilcr . C. W. Danforth and \V. T. ilartei-steck. Youngs-town. Ohio, and W. I. Samuels. New Castle,Pa. Pat. Jan. 20, 1915. Date May 1. 19U. TilK finely divided ore is roasted, treated while hotwith a strong solution of sulphuric acid, and themixture filtered ; vanadium and uranium arerecovered from the filtrate and radi
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