US PATENT SUBCLASS 246 / 270 R
VEHICLE-ENERGY ACTUATION

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

270 RVEHICLE-ENERGY ACTUATION {11}
271  DF  .~> Fluid transmission {1}
273  DF  .~> Continuous-rail crossings
274  DF  .~> Switch-connected frogs
275  DF  .~> Continuous-rail frogs {1}
277  DF  .~> Automatic turnouts
*  DD  .~> Switch stands, automatic {3}
292  DF  .~> Signals and gates, automatic {2}
314  DF  .~> Switches, automatic {6}
358  DF  .~> Switch locks, automatic
359  DF  .~> Train trips {8}
270 A  DF  .~> Automatic switch actuation from or by vehicle

Unofficial Alpha Subclasses: R A

DEFINITION

Classification: 246/270

(under the class definition) Subject matter in this subclass by which signals, switches, gates, and other movable elements of this class are actuated by the energy of the moving vehicle; either by direct mechanical connection with the train- actuated track-trip or indirectly by means of power stored up in springs, counterweights, and trains of clockwork by the moving vehicle through the medium of track-trips.

SEE OR SEARCH THIS CLASS, SUBCLASS:

245, for car-actuated generators of electricity.

246, for car-actuated circuit-closers.

252, for trolley or plow actuated circuit-closers, these devices not being included in this subclass.