US PATENT SUBCLASS 246 / 11
.~.~.~.~ Multiple contact

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

2 R  DF  TRAIN DISPATCHING {7}
7  DF  .~ Train telegraphy or telephony {3}
9  DF  .~.~ Continuous contacts {2}
10  DF  .~.~.~ Traction rail return {1}
11.~.~.~.~ Multiple contact

DEFINITION

Classification: 246/11

(under subclass 10) Systems in which two or more continuous contacts are used.

(1) Note. See the search note to subclass 10 for continuous-contact systems and also for systems disclosing the return of the current through the traction-rail.

SEE OR SEARCH CLASS

191, Electricity: Transmission to Vehicles, for structure of the conductor and the collector.