. Western electrician . e illustration shows a means for testing larnp biilbs whilein process of exhaustion, leads in circuit with the filaments ofthe lamps, a conductor in proximity to the lamps, and meansfor producing hi;h tension oscillatory or alternating currents,one end of the high tension producer being connecf^d to eitherof the leads and the other to the conductor. S33583- Brush for Dynamo-electric Machines. JosephW. Dickey, New York, N. Y. Application filed De-cember S, 1S94. The claim follows; In a dynamo brush composed of wovenwire cloth or mesh, the combination with main blank, cut
. Western electrician . e illustration shows a means for testing larnp biilbs whilein process of exhaustion, leads in circuit with the filaments ofthe lamps, a conductor in proximity to the lamps, and meansfor producing hi;h tension oscillatory or alternating currents,one end of the high tension producer being connecf^d to eitherof the leads and the other to the conductor. S33583- Brush for Dynamo-electric Machines. JosephW. Dickey, New York, N. Y. Application filed De-cember S, 1S94. The claim follows; In a dynamo brush composed of wovenwire cloth or mesh, the combination with main blank, cut angu-larly to the length of the roll or piece of a second shorter pieceof wire cloth similarly cut and placed over the main blank. Issued Fcbritaiy ^, iSgj. with its angular ends in reverse position to those of the mainblank, and wound up and pressed to form and forming a dynamobrush of suitable shape. 533)59^. Apparatus for Refining Metals by A. House, Bridgeport, Conn. Application filedMay 2, ^o- In an electrolytic apparatus the claim is made for the combi-nation with a rotating cathode, partially immersed in the solu-tion, of a scraper for removing the film of metal from the surfaceof the cathode above the solution as the cathode revolves, andmeans for insulating that part of the cathode with which thescraper engages. 533,598. Running Gear for Electric Cars. Charles , Reading, Mass. Application filed SeptemberI5» 1^93- There is the combination of the axle, bavin j a ring affixedthereto, a wheel having a recess to recive one-halfof said ring,and a ciutch-block having a recess to rcciive the other half ofthe ring and a flange bolted to the wheel. 533,607. Insulated Conductor. Henry G. ONeill, Bos-ton, Mass. Application filed March 22, 1S94. A covering for resistances consisting of two coats, the innercoat being composed of a mixture of silicate of magnesia andsilicate of soda in solution, and the outer coat consisting of amixture o
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