(under subclass 113) Subject matter provided with means to suppress vibrations of the electromagnet, or its armature, the vibrations being usually due to the use of alternating current for energizing the electromagnet.
SEE OR SEARCH THIS CLASS, SUBCLASS:
82, 99 and 100, for consumable-electrode discharge devices having electromagnetically-operated feed regulating and/or controlling mechanism and an escapement or retarding mechanism for regulating the motion of the feed regulating and/or controlling mechanism.
91, for consumable-electrode discharge devices having electromagnetically-operated feed regulating and/or controlling mechanism and having a resilient member, such as a spring, or a lost motion connection between the electromagnet and the electrode and/or electrode release mechanism to prevent small movements of the electromagnet from being transmitted to the electrode and/or the electrode release mechanism, thereby preventing spurious movements of the electrodes.
SEE OR SEARCH CLASS
335, Electricity: Magnetically Operated Switches, Magnets, and Electromagnets,
243, for alternating current responsive electromagnets with armatures.