. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . cannot lower oneor the other until the train has passedbeyond the signal bridge marked C. Inorder to facilitate rapid train movementthe signals at C are placed about 430feet west of the signal tower, and thewhole block is probably about 4S0feet long. Two trains, one of whichtakes the westbound mainline, andthe other the center track may entereach its own route with perfectsafety at a short time interval if de- INTKRIOli OK INTKlU,OCKING TOWIsK ONPASSAIC IIRIDGR—D., I,. & W. the route over the
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . cannot lower oneor the other until the train has passedbeyond the signal bridge marked C. Inorder to facilitate rapid train movementthe signals at C are placed about 430feet west of the signal tower, and thewhole block is probably about 4S0feet long. Two trains, one of whichtakes the westbound mainline, andthe other the center track may entereach its own route with perfectsafety at a short time interval if de- INTKRIOli OK INTKlU,OCKING TOWIsK ONPASSAIC IIRIDGR—D., I,. & W. the route over the continuous westboundtrack, and dropping the lower arm indi-cates that the diverging route has beenselected. Both these signal arms thoughworked from the tower are yet controlledby a pair of electric slots, on the post. The slot machine is simply an ingen-ious piece of mechanism which while itpermits either signal to be cleared by thesignalman, returns the signal arm to thestop position without his assistance, onthe passing of a train. The electric slotsignal mechanism is used to make a part. SLOT INTERLOCKING SIGNAL AT ENTRANCE OF NEWARK BRIDGE OVER THE PASSAIC ON THE D., I,. & W. M.\RKED D IX Dl.^ of the movement automatic. The signalcan be cleared by hand, but the heavilycounterweigbted signal arm flies back tothe stop position on the release of adetent in the machine, caused by a shortcircuit in the track current. This shortcircuit is brought about by the presenceof a train in the block. The signal man interlocking tower and governed eachby an electric slot machine. These sig-nals stand normally at stop, and oneof them only can be pulled down by thesignal man in the interlocking tower ifa train has passed beyond signal D. The distant at C acting in unisonwith the home at E clear auto-matically as the home at E cleared ifit got the chance, but as it goes to thehorizontal position along with thehome above it, every time, and as italso requires the sign
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Keywords: ., bookcentury1900, bookdecade1900, bookidrailwaylocom, bookyear1901
