. Electric railway journal . ResistanceRl to R5 = OhmsR2 to R5= to R5 = to R5= .5 Keversc Cylinder • i ,Portable 1 1 Mounts! on board ] f ilotor on Truck Armature^1 Ground on Motor-jFrame DIAGRAM OF PORTABLE CONTROL SET CONNECTIONS the trolley wire which passes over each of the tracks inboth the motor and truck repair buildings. When thepower is turned on to move the trucks, a cable connec-. DETAILS OF CONSTRUCTION OF CONTROLLER OF PORTABLE CONTROL SET 686 ELECTRIC RAILWAY JOURNAL [Vol. XLVIII, No. 14 tion between the controller and the truck is permittedto unwind from a drum a
. Electric railway journal . ResistanceRl to R5 = OhmsR2 to R5= to R5 = to R5= .5 Keversc Cylinder • i ,Portable 1 1 Mounts! on board ] f ilotor on Truck Armature^1 Ground on Motor-jFrame DIAGRAM OF PORTABLE CONTROL SET CONNECTIONS the trolley wire which passes over each of the tracks inboth the motor and truck repair buildings. When thepower is turned on to move the trucks, a cable connec-. DETAILS OF CONSTRUCTION OF CONTROLLER OF PORTABLE CONTROL SET 686 ELECTRIC RAILWAY JOURNAL [Vol. XLVIII, No. 14 tion between the controller and the truck is permittedto unwind from a drum as the truck moves along thetrack. A small reverse cylinder is also provided for usein case the motor connections are made improperly. Acontact finger and ring on the drum supply a continuouspath for the current from the trolley to the cable as itunwinds from the drum. The other features of thisequipment are shown in the diagram on the precedingpage. A New Contactor Signal UsingStandard High-Speed Aspects Recently Developed Signal Designed to Comply withTests Recommended by the Block SignalCommittee of the Association The campaign for safety first which has beencarried on for the past few years has had greatinfluence on every branch of the railway industry, andto a marked degree on the signaling art, which is oneof the pioneers in this movement. One of the mostimportant developments of the past seven
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