. The Street railway journal . ento the wheel pieces and the very effective manner in which the endpieces are secured to them. These cars are arranged for double trolley poles and are pro-vided with powerful motors, as they are intended to operate on afast schedule. incandescent lamps being used, which are so arranged that the sun-light will not strike them and confuse the motorman. All wiringis done with No. 12 B. & S. gage insulated iron wire or cable,as desired. No trolley wire is cut or separate section required, andthere is no trigger or any obstruction for the trolley wheel or poleto str
. The Street railway journal . ento the wheel pieces and the very effective manner in which the endpieces are secured to them. These cars are arranged for double trolley poles and are pro-vided with powerful motors, as they are intended to operate on afast schedule. incandescent lamps being used, which are so arranged that the sun-light will not strike them and confuse the motorman. All wiringis done with No. 12 B. & S. gage insulated iron wire or cable,as desired. No trolley wire is cut or separate section required, andthere is no trigger or any obstruction for the trolley wheel or poleto strike against required to operate the signal, the current beingtaken directly through trolley wheel so that the device will operatewhether the motorman uses his power or not. The signal isoperated by the trolley wheel making contact between the trolleywire and an independent circuit, and the car crew have nothing todo with setting them. For a single track road with turnouts, diagrammatically shown No. 1 Turnout No. 2 Turnout. Street Iiy. Journal FIG. I.—SINGLE TRACK INSTALLATION in Fig. i, the device works as follows: When a car crew desiring toleave the turnout runs out on the line, a white light signal being set,the trolley wheel passing over a certain point makes contact with anindependent circuit operating the signal, setting a red light on thefar turnout No. 2, and a green light on the near turnout No. the motorman, seeing a green light, knows that the signal isset at danger at the No. 2 turnout, causing any car proceeding in theopposite direction at No. 2 turnout to come to a dead stop. Thecar passing through the block and reaching No. 2 turnout thetrolley wheel makes contact between the trolley wire and an inde-pendent circuit, throws out the red light at No. 2 turnout, and thegreen light at No. 1 turnout, lighting up a white light at No. 2turnout and a white light at No. 1 turnout. Thus a white light isset at each end of the block, and a car can now enter from ei
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
