. Electric railway gazette . bearings below saidopenings. 524,540. Device tor Operating Street Pall-way SwItclioH ; Carl E. R. Cliristonaen. Brooklyn,N. Y. Filed Nov. 15, 1893, Tho switch is adapted to beniouDtod on the platform of a car and comprises aguide socket, with a laterally flared bore, a stemmounted non-rotativcly in the bore of the guide, ahcud-piece on the upper end of said stem, a wedge ofclamshell form on the lowei end of said stem, anda retracting spring. r 21,541. Pneumatic Controller; Edward H. Dew-son, Jr., Lynn, Assignor to the General ElectricComjiany, Boston, Mass.
. Electric railway gazette . bearings below saidopenings. 524,540. Device tor Operating Street Pall-way SwItclioH ; Carl E. R. Cliristonaen. Brooklyn,N. Y. Filed Nov. 15, 1893, Tho switch is adapted to beniouDtod on the platform of a car and comprises aguide socket, with a laterally flared bore, a stemmounted non-rotativcly in the bore of the guide, ahcud-piece on the upper end of said stem, a wedge ofclamshell form on the lowei end of said stem, anda retracting spring. r 21,541. Pneumatic Controller; Edward H. Dew-son, Jr., Lynn, Assignor to the General ElectricComjiany, Boston, Mass. Filed Sept. II, 1893. Thispatent covers, in a pneumatic device for operatingmotor controllers, a source of suhatantially cooMtuntpresHure. a piston actuated thereby, a valve controllingliltpruHHure medium and determining the directiiHi ofinovomont of the said regulating or step-by-step<levico for limiting and conirolling the movement ofBaid piston, and common means for operating said valveand 8tup-by*atop No. 524,542. ders substantially as described, pistons in said pressurecylinders respectively connected to pistons in saidtransmitting cylinders, non-elastic or incompressiblefluid acting as the transmitting medium between saidtransmitting cylinders, and a cock for controlling thepassage of said fluid from one of said transmittingcylinders to another. (See illustration.) 524,548. Automatic Electric Signaling De-vice ; Edward A. Hei-mann, St. Louis, Mo. FiledApril 1(5, 1894. In a device of the class described thepatent relates to the combination of the signal trolleywire, the conductor wie leading therefrom, the incan-descent lamps in circuit with the conductor wire, thesolenoid in circuit with the conductor wire, the shaftadjacent to said solenoid, the semaphore mounted uponsaid shaft, the drum mounted upon said shaft, the con-nections between the solenoid and drum, the slidesmounted upon the semaphore, and means for operatingthe same in combination with th
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