. Electrical world. lins, ByerSTille, filed Feb. 2, 1901. At the crossing the trolley wire is raised to anelevation where it will not interfere with crossing traffic and to enablecars to connect with the elevated portion at the crossing, an extension trolleyis suspended therefrom and engages with the car trolley while the car movesover the crossing. ,903. SYSTEM FOR THE OPERATION OF ELECTRIC MOTORS;Arthur C. Eastwood, Cleveland, O. App. filed Sept. 25, 1903. Relates tothe construction of the controller for operating the reverse switches andclosing the circuit through certain solenoids t
. Electrical world. lins, ByerSTille, filed Feb. 2, 1901. At the crossing the trolley wire is raised to anelevation where it will not interfere with crossing traffic and to enablecars to connect with the elevated portion at the crossing, an extension trolleyis suspended therefrom and engages with the car trolley while the car movesover the crossing. ,903. SYSTEM FOR THE OPERATION OF ELECTRIC MOTORS;Arthur C. Eastwood, Cleveland, O. App. filed Sept. 25, 1903. Relates tothe construction of the controller for operating the reverse switches andclosing the circuit through certain solenoids to cut out the sectional re-sistance. ,949. ROAD CROSSING DEVICE; Frank L. Sessions, Columbus, 0. Aug. 8, 1902. A modification of 751,900. .974- RAIL CONTACT SHOE AND SUPPORT THEREFOR; GeorgeW. Brady and Lawrence R. Jones. Wheaton, 111. App. filed April 13, lips of a straddling shoe which bear against the opposite sides of athird-rail and are hinged and spring-supported, to yield on passing 900.—Trolley Road Crossing. .9SJ. SOUND MAGNIFIER FOR RELAYS; Matt A. Hacker, Irvine. Ky App. filed April 2S, 1902. The stroke of the armature is delivered to £ diaphragm located at the small end of a megaphone.,985. UNDERGROUND CONDUIT INSULATION; John M. Humiston Berwin, 111. App. filed April 27, 1903. To diminish electrolysis, sections of non-conducting tubing are inserted at intervals in the metallic tubing.,986. APPAR.\TUS FOR PURIFYING LIQUIDS; Otto Kartzmark Brooklyn, N. Y. App. filed Dec. 26, 1900. (See page 361.),991- CURRENT DIRECTOR; James F. McEIroy, Albany, N. Y. App filed Jan. 28, 1901. A switch having contact fingers in two sets, one used for making and breaking circuit while the other is used for distributing current in two or more ,oo5. ELECTRIC ARC LAMP; Frederick Sindingchristensen, Brooklyn N. Y. App. filed Aug. 29, 1902. Details of the feed INDUCTION COIL; Charles F. SpHtdorf, New York. N. Y. App. filed July IS. 19
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectelectri, bookyear1883
