. The Street railway journal . PATENT NO. 661,516 661,572. Air Brake Mechanism for Cars; D. Beemer, Detroit,Mich. App. filed Feb. 25, 1898. The air pump is geared in -aspecial manner to the car axle. 661,600. Trolley Wheel; T. I. Duffy and C. S. McMahan,Chicago, 111. App. filed July 16, 1900. Contact springs betweenthe ha rp and the wheel are inserted in a special manner. 661,714. Telephone Circuit; I. H. Farnham and G. W. Davis,Wellsley, Mass. App. filed May 11, 1900. Circuits and apparatusfor telephoning between cars and central station. The circuit ex-tends along the road, and is provided w
. The Street railway journal . PATENT NO. 661,516 661,572. Air Brake Mechanism for Cars; D. Beemer, Detroit,Mich. App. filed Feb. 25, 1898. The air pump is geared in -aspecial manner to the car axle. 661,600. Trolley Wheel; T. I. Duffy and C. S. McMahan,Chicago, 111. App. filed July 16, 1900. Contact springs betweenthe ha rp and the wheel are inserted in a special manner. 661,714. Telephone Circuit; I. H. Farnham and G. W. Davis,Wellsley, Mass. App. filed May 11, 1900. Circuits and apparatusfor telephoning between cars and central station. The circuit ex-tends along the road, and is provided with plugging in pointswhere the apparatus on the car can be PATENT NO. 661,921 661,841. Switch Controlling Device for Surface Cars; C. GBauer, New Rochelle, N. Y. App. filed March 26, 1900. Themotorman is enabled to force a hook down into a slot in the road-bed for engagement with switch-throwing mechanism locatedtherein. 661,880. Electric Brake Controller; J. C. Lincoln, Cleveland,Ohio. App. filed Oct. 2, 1899. The trolley current is used toexcite the fields of the motors when the brake is first applied, andsuch currents are allowed to flow through the fields after themotors have ceased rotating. This brings the braking force intoaction at once, and holds the car on a grade after the brakingforce afforded by the generating motors ceases. 661,921. Convertible Car; J. OLeary, Cohoes, N. Y. Aug. 22, 1899. The sash and panels can be moved up into achamber under the roof of the car. PERSONAL MENTION MR. J. B. FISHBURN has just been elected president of theRoanoke Street Railway Company, of Roanoke, Va., to succeedH. S. Trout, resigned. M
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