(under the class definition) Subject matter wherein the feed of the electrode is accomplished by the consumption of the electrode material or by the destruction by the heat of the discharge of obstructions to the motion of the electrode.
(1) Note. Where the electrode is connected to a source of power, as a mechanical or electrical motor, which transmits motion to the electrode to cause it to feed, the patent is not classified in this subclass although the loss in weight of the electrode due to the consumption of the electrode may effect the feed or control the operation of the source of power.
(2) Note. Continue the search in subclass 37 of this class.
SEE OR SEARCH CLASS
313, Electric Lamp and Discharge Devices,
235, for discharge devices which have two electrodes which are maintained in imperfect electrical contact so that the passage of electric current from one electrode to the other will produce light or cause the electrode to be heated. In some of these devices, the electrodes are consumed and are fed together in a manner analogous to the discharge devices of this subclass (59) of Class 314.