Roll for plating tanks

Claim 1

IN A COMBINATION COMPRISING ELECTROLYTIC MEANS FOR PLATING STEEL STRIP, MEANS FOR CONVEYING SAID STRIP TO SAID PLATING MEANS, SAID CONVEYING MEANS INCLUDING A CONDUCTOR ROLL ADAPTED TO BE IN CONTACT WITH SAID STRIP, AN ELECTRICAL CIRCUIT, THE IMPROVEMENT WHICH COMPRISES SAID CONDUCTORS ROLL HAVING A GENERALLY CYLINDRICAL ROL BODY HAVING THE SURFACE THEREOF COMPOSED OF A REGULAR PATTERN MADE UP OF RAISED PORTIONS SEPARATED BY CONTINUOUS INTERCONNECTED GROOVES, THE SURFACE OF SAID RAISED PORTIONS BEING SMOOTH AND HAVING SUBSTANTIALLY THE SAME RADIUS OF CURVATURE THROUGHOUT, SAID GROOVES HAVING A DEPTH SUCH AS TO GIVE THE SURFACE AN OVERALL ROUGHNESS OF MORE THAN ONE HUNDRED MICRO-INCHES AD DETERMINED BY A PROFILOMETER, THE MATERIAL OF SAID SURFACE BEING TAKEN FROM THE GROUP CONSISTING OF COPPER, NICKEL, MONEL, CHROMIUM, AND STEEL SAID ELECTRICAL CIRCUIT BEING CONNECTED TO SAID CONDUCTOR ROLL AND HAVING MEANS ADAPTED TO CONNECT IT TO SAID STRIP WHEREBY A CURRENT MAY FLOW THROUGH SAID ROLL AND SAID STRIP.