An electrode apparatus for an electric arc vapor deposition machine has an electrode body with a coaxially aligned stud threaded into its rear surface and projecting substantially perpendicularly thereto. The distal end of the stud is threaded for rapid detachable fastening to an electrode support means...http://www.google.es/patents/US4622452?utm_source=gb-gplus-sharePatente US4622452 - Electric arc vapor deposition electrode apparatus
