.~ Movable electrode (e.g., for cleaning, adjustable) {1}
126
.~.~ Automatically moved (e.g., engine vibration)
DEFINITION
Classification: 313/126
(under subclass 125) Subject matter in which the electrode is automatically moved.
(1) Note. The electrode may be moved, for example, by engine vibration or by a thermostat. The motion may be effected so as, for example, to adjust the spacing of the spark gap electrodes or to clean the electrodes.
(2) Note. This subclass also includes spark plugs having means for automatically moving electrodes and means for disabling said first mentioned means so that the electrodes can optionally be held immovable.
(3) Note. This subclass includes spark plugs having both manual and automatic means to move an electrode.
SEE OR SEARCH THIS CLASS, SUBCLASS:
127, for spark plugs having automatically moved cleaners.
143, for spark plugs having automatically moved baffles or gas directing means for the electrode chamber.