. Electric railway gazette . increased or decreased. There areinterlocking devices between the handles wherebyeither is locked when the other is out of said criticalposition. 525,395. S>pteni and Apparatas for Control ofElecirie lUacltines; Elmer A. Sperry, Cleveland,0., Assignor to the Sperry Klectric Railway Companyof Ohio. Filed July 24, 1894. Means are provided forgradually increasing the current in the motor circuitfrom up to some predetermined point, and for then de-creasing the counter electromotive force at constantspeed of ■^uch motor and simultaneously decreasing thecurrent flowin
. Electric railway gazette . increased or decreased. There areinterlocking devices between the handles wherebyeither is locked when the other is out of said criticalposition. 525,395. S>pteni and Apparatas for Control ofElecirie lUacltines; Elmer A. Sperry, Cleveland,0., Assignor to the Sperry Klectric Railway Companyof Ohio. Filed July 24, 1894. Means are provided forgradually increasing the current in the motor circuitfrom up to some predetermined point, and for then de-creasing the counter electromotive force at constantspeed of ■^uch motor and simultaneously decreasing thecurrent flowing in the motor circuit as compared withthat flowing privinus to said change in the counterelectromotive force, and means whereby the current inthe motor circuit may be gradually increased from thispoint. (See illustration.) 525,480. Electric KalUiav System; Francis , Chicago, IH. Filed Oct 22, 1892 A motor trans-former on the car is adapted to be operated by an ex-ternal multiphase supply ci-cuit, one or more direct. No. 525,505. current motors are attached or geared to the vehicleaxle or axles. Devices are provided to make or breakthe circuit to the direct current motor and to regulatethe speed^of the motor, and devices located in the cir-cuit connecting the transformer to the direct currentmotor or ,505. Electroi»a{>rnetfc Car-Brake; RobertT. Mi-rray and Charles M. Allen, San Francisco, Oct. 2i, 1892. The brake consists of verticallymoving brakeshoes adapted to form contact with theline of rails, and an electromagnet which carries thebrakeshoes and moves with them. Independent coilssurround the core of the magnet, said coils being con-nected in series, and with switch plates arranged abouta center. A lever is pivoted at this centfir and is mov-able to make connection between the various pairs ofplates whereby the power of tlie magnet is increased,diminished or destroyed. (Sec illustration.) 525,516. Car Pender; Thomas Ross, Westerly, R.
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