(under subclass 7) Systems in which a current is transmitted to or from the train by one or more continuous contacts with line conductors other than the traction rails, which may or may not be sectionalized.
SEE OR SEARCH THIS CLASS, SUBCLASS:
65, through 68, 73 and 86, all disclosing means for the transmission of signals to moving trains through electrical contacts continuously maintained.
SEE OR SEARCH CLASS
104, Railways,
279+, for removing ice, snow and dirt from continuous and intermittent electric contacts.
191, Electricity: Transmission to Vehicles, for structure of the conductor and collector.