(under subclass 454) Device including a stationary conductor of an electrical circuit placed alongside the path of the rolling or tumbling means for transmitting an electrical signal from the control means to the speed or direction-changing means on the rolling or tumbling means, wherein the rolling or tumbling means is in the form of a wheeled conveyance.
SEE OR SEARCH CLASS
104, Railways,
304, for a steerable slot guided vehicle; and subclass 296 for other remotely controlled slot guided vehicles.