. The Street railway journal . ,756. Controller; Walter J. Warder, Jr., Chicago, \pp. filed May 13, 1907. A form of starting or speed control-ling rheostat for electric motors having a ratchet mechanism bywhich it is impossible to turn on the controller too rapidly. 878,828. Semi-Convertible Car; Edward T. Robinson, , Mo. App. filed July 29, 1907. Relates to the storing ofthe windows in the roof of the car. 878,836. Securing Device for Trolleys; Eberle D. Trickey,Blanchester, Ohio. App. filed April 17, 1907. A pair of spring-impelled arms pivoted to the trolley harp and adapted to
. The Street railway journal . ,756. Controller; Walter J. Warder, Jr., Chicago, \pp. filed May 13, 1907. A form of starting or speed control-ling rheostat for electric motors having a ratchet mechanism bywhich it is impossible to turn on the controller too rapidly. 878,828. Semi-Convertible Car; Edward T. Robinson, , Mo. App. filed July 29, 1907. Relates to the storing ofthe windows in the roof of the car. 878,836. Securing Device for Trolleys; Eberle D. Trickey,Blanchester, Ohio. App. filed April 17, 1907. A pair of spring-impelled arms pivoted to the trolley harp and adapted to closeover the wire. 878,894. Signal System for Electric Railways; Charles , Philadelphia, Pa. App. filed Oct. 19, 1901. Details ofcircuits of a block signal system making use of special equip-ment throughout and having certain functions performed by themovement of the controllers on the cars. 878,899. Convertible Car; Edward T. Robinson, St. Louis,Mo. App. filed April 20, 1906. Relates to the storing of thewindows, PATENT NO. 878,589. 878,927. Switch Operating Mechanism; Aaron B, Allen,Pueblo, Col. App. filed June 21, 1907. A switch-throwing levermounted in a casing in the roadbed and adapted lo be engagedby a lever depending from a moving car. 878,961. Controller for Electric Motors; Pearl N. Jones,Pittsburg, Pa. App. filed Aug. 12, 1907. Combines two ormore controllers with suitable mechanism whereby the control-lers can be simultaneously operated to regulate and reverse thecurrent to the motors. 879,034. Trolley Pole Controller; John J. Coit, Venice, filed Oct. 20, 1906. The trolley harp is pivoted to theupper end of the pole, and a small piston is efTective to keepthe wheel pressed upward against the wire. Additional pneu-matic mechanism operates to retrieve the pole or control it inother ways. PERSONAL MENTION MR. V. L. HAVENS has been appointed chief engineer ofthe Compania Limitada de Tranvias Electricos de Mexico, Cityof Mexico, Mexico, succeeding
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
