(under the class definition) Subject matter provided with one mechanism for moving an electrode in the separating direction and separate means for moving the same electrode in the feeding direction.
(1) Note. This subclass does not include (a) mechanisms which connect the electrode to a source of motive power in one direction of motion of the motive power means for moving the electrode against the force of gravity or against the resistance of a spring or weight and which release the electrode from engagement with the source of motive power in the other direction of motion of the motive power means or when the motive power means is de-energized so that the electrode is free to move under the influence of gravity or the bias of the spring or weight, (b) mechanisms such as reversible motors or reversible transmission means, such as reversible gearing, or (c) other mechanisms which are reversible in their operation and which are used in one direction of their motion for feeding the electrodes, and in the other direction for separating the electrodes. Such mechanisms are excluded even though supplemental means are provided for controlling or aiding the release of the electrode from the motive power means or for controlling the mechanism to reverse the operation. Such mechanisms are in the subclasses below.
SEE OR SEARCH THIS CLASS, SUBCLASS:
51, 52 and 54, for consumable electrode discharge devices wherein one of the electrodes is moved to separate the electrodes from each other, and the other electrode is moved to feed the electrodes together.
