(under subclass 147) Systems in which the discharge device is provided with a discharge controlling means.
(1) Note. Systems under subclass 147 in which the discharge device is provided with an auxiliary discharge electrode are classified in this subclass. The auxiliary electrode may be supplied with alternating current which is out of phase with
the current supplied to the principal electrode, or the principal electrodes may be connected to a polyphase system and the auxiliary electrode may be supplied with current of any character.
SEE OR SEARCH THIS CLASS, SUBCLASS:
146, for polyphase systems which include two or more discharge device loads, having a discharge controlling means.
261, and indented subclasses, subclass 267, and subclass 268 and indented subclasses, for nonpolyphase alternating current systems having a discharge device load with a discharge controlling means; subclass 261 and indented subclasses, for plural cathode and/or anode type with an auxiliary starting electrode, subclass 267, for those with an electromagnet control means, and subclass 268 and indented subclasses for those with miscellaneous control means.
335, and indented subclass, subclass 339, subclass 341 and indented subclasses, subclass 344 and indented subclasses, and subclass 349 and indented subclasses, for nonalternating current systems having a discharge device load with a discharge controlling means; and subclass 335 and indented subclass, and subclass 339, for plural cathode and/or anode type, subclass 335, with an auxiliary starting electrode and subclass 339 with miscellaneous discharge controlling means; subclass 341 and indented subclasses, for devices having plural discharge control means; subclass 349 and indented subclasses, for devices having miscellaneous discharge control means.
