. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . for operating thesignal. It is normally closed, but isopened by the selector to set the is the amature, operating through thearmature lever, the slot latch engagingthe signal rod. C is the armaturelever. Its left face is machined andforms a track for the roller on the slotlatch. D is a rubber gasket on the coverof the box to prevent the entrance ofmoisture or dust. E is the armaturelever spring to bring the armaturelever into contact with the magnet. Fis the United States Electric Co
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . for operating thesignal. It is normally closed, but isopened by the selector to set the is the amature, operating through thearmature lever, the slot latch engagingthe signal rod. C is the armaturelever. Its left face is machined andforms a track for the roller on the slotlatch. D is a rubber gasket on the coverof the box to prevent the entrance ofmoisture or dust. E is the armaturelever spring to bring the armaturelever into contact with the magnet. Fis the United States Electric Com-panys answer-back mechanism. Onthe completion of the setting of thesignal this mechanism repeats the sig-nal combination number to the dis-patcher over the telephone wire, assur-ing him that the semaphore is set atdanger. G is the answer-back is operated by a bracket on thesleeve of the signal rod depressing aplunger and operates only when thesignal is set in the danger is the mechanical locking lever,pivoted at the foot and unlocked by astud carried by the descending slot. SEMAPHORE Tj. S. ELFC. CO. latch. I is a locking pin carried by asleeve working on the slotted signalrod. J is the roller traveling on theface of the armature lever and actuat-ing the slot latch. K is the slot latchengaging the signal rod. It cannot beengaged unless the magnet is 6- or 10-volt battery of the closed FIG. circuit type is required with each sig-nal. The signal blade is held in thesafety or clear position by meansof the magnet in the electric slot beingcontinuously energized by the localbattery as is common in railway prac-tice. \\ hen the dispatcher desires tothrow any particular signal tothe stop position, he turnsthe automatic calling key forthat station as is done in atrain dispatching circuit. Whenthe contact of the selectorcloses it completes the circuitof the semaphore relay, whichthen operates the slot, causingthe semaphore to go to thestop posit
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Keywords: ., bookcentury1900, bookdecade1900, bookidrailwaylocom, bookyear1901
