. The Street railway journal . FIG. OF OPERATING BOARD the switchpoint, which closes a shunted circuit passing throughone coil of an electric lock, placed behind the hand lever. Thiscoil shoots a bolt over the back end of the lever and locksthe lever in position until it is unlocked by the car passinganother contact maker on the trolley wire. This sends a December 22, 1906.] STREET RAILWAY JOURNAL. current through a second coil and withdraws the bolt. Thelocks can be plainly seen in Figs. 2 and 4, and the method oftapping the trolley wire for the shunt circuit in Fig. 6. The may be seen
. The Street railway journal . FIG. OF OPERATING BOARD the switchpoint, which closes a shunted circuit passing throughone coil of an electric lock, placed behind the hand lever. Thiscoil shoots a bolt over the back end of the lever and locksthe lever in position until it is unlocked by the car passinganother contact maker on the trolley wire. This sends a December 22, 1906.] STREET RAILWAY JOURNAL. current through a second coil and withdraws the bolt. Thelocks can be plainly seen in Figs. 2 and 4, and the method oftapping the trolley wire for the shunt circuit in Fig. 6. The may be seen on the top of the operating board in Fig. this board is a complete diagram of the yard. Eachtrack is represented by a strip of metal, and a miniature. F CONNECTIONS
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
