US PATENT SUBCLASS 246 / 59
.~.~.~.~ Cab signal or train control

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}
58  DF  .~.~.~ Direct-current, normally open, track circuit {2}
59.~.~.~.~ Cab signal or train control

DEFINITION

Classification: 246/59

(under subclass 58) Means are provided for actuating audible or visual signals upon the cab or train or for stopping it or controlling its speed.

SEE OR SEARCH THIS CLASS, SUBCLASS:

7+, for the transmission of teles:graphic and telephonic communications to and from moving cars.

26, 34+, 41+, 58+, 95, 98, 128+, and 130, for track-circuit systems.

167+, and all subclasses mentioned in the search notes appended thereto, for cab and control features.