US PATENT SUBCLASS 246 / 32
.~.~.~.~ Current consumption

Current as of: June, 1999
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246 /   HD   RAILWAY SWITCHES AND SIGNALS

20  DF  BLOCK-SIGNAL SYSTEMS {4}
27  DF  .~ Automatic {5}
28 R  DF  .~.~ Electric {18}
31  DF  .~.~.~ Propulsion-current control {1}
32.~.~.~.~ Current consumption

DEFINITION

Classification: 246/32

(under subclass 31) Systems in which the flow of propulsion current to one car or train under conditions of danger controls the flow to other cars or trains.