(under the class definition) Subject matter wherein the electrode feeding mechanism positively feeds the electrode during the feeding operation as distinguished from permitting the electrode to fail under the influence of gravity.
(1) Note. This subclass and the indented subclasses constitute the miscellaneous place for mechanisms for feeding the electrode positively where this is claimed. The succeeding subclasses, starting with subclass 82, ordinarily have positive electrode separating means, and gravity electrode feed means, or feed means so broadly claimed as not be limited to positive feed means.
(2) Note. Continue the search in subclasses 21, 22, 51, 52, 58 and 65 and indented subclasses of this class.
(3) Note. This subclass includes feeding mechanisms wherein a spring or weight furnishes the motive power for feeding the electrode, excepting, where the only weight is the weight of the electrode and/or the electrode holder.
SEE OR SEARCH THIS CLASS, SUBCLASS:
37, and 59, for consumable electrode discharge devices 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, the electrode usually being biased by means of a spring or other positively acting means to move the electrode or the obstructing means against a holding stop. 41, for consumable electrode discharge devices having power driven means for both rotating and positively feeding the consumable electrode.
SEE OR SEARCH CLASS
313, Electric Lamp and Discharge Devices,
146, for miscellaneous discharge devices which have a movable electrode and power means for moving the electrode.
