(under subclass 62) Systems in which the current is conducted from the track through the cab or car by means of intermittent contacts, periodically established, with contact-plates, ramp-rails, or similar devices other than traction-rails.
SEE OR SEARCH THIS CLASS, SUBCLASS:
56, 69, 70, 71, 85, 92, 195, 229, 233, 234, and 235, for systems with intermittent contacts from which cab signal and train-control features are absent.
167+, and all subclasses mentioned in the search notes appended thereto, for cab and control features.
SEE OR SEARCH CLASS
104, Railways,
279+, for devices for cleaning ice, snow and dirt from continuous and intermittent electrical contacts.
