US PATENT SUBCLASS 246 / 62
.~.~.~ 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}
62.~.~.~ Cab signal or train control {7}
63 R  DF  .~.~.~.~> Inductive {2}
64  DF  .~.~.~.~> Train-carried current supply {3}
72  DF  .~.~.~.~> Propulsion-current signaling
73  DF  .~.~.~.~> Continuous contact
74  DF  .~.~.~.~> Intermittent contact
75  DF  .~.~.~.~> Bridged insulated rail joint
76  DF  .~.~.~.~> Track trip

DEFINITION

Classification: 246/62

(under subclass 28) Systems in which means are provided for actuating traffic-control devices upon the cab or train.

(1) Note. The use of fluid-pressure means upon the cab or train for operating or controlling brake and throttle valves or electrical controllers or for operating brakes and audible or visual signals is not considered as combined fluid-pressure and electric in the sense of subclass 93, and therefore systems using such means have been herein included.

SEE OR SEARCH THIS CLASS, SUBCLASS:

7+, for systems which disclose or claim means for the teles:graphic or telephonic transmission of written matter or

speech.

31, for automatic-stop systems in which electrical propulsion-current is cut out from trolly-wire or third-rail sections.

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