Process of providing an electrolytic deposit on a face of a workpiece

Claim 1

A PROCESS FOR PRODUCING AN ELECTROLYTIC DEPOSIT ON ONLY ONE FACE OF TWO SUBSTANTIALLY PARALLEL FACES OF A WORKPIECE WHILE AVOIDING FORMATION OF SAID DEPOSIT ON SAID SECOND FACE OF SAID WORKPIECE COMPRISING DISPOSING SAID WORKPIECE AS A CATHODE IN AN ELECTROLYTE OF AN ELECTROLYTIC CELL BETWEEN THE ANODE OF SAID CELL AND A SECONDARY CATHODE WITH SAID ONE FACE OF SAID WORKPIECE ON WHICH THE DEPOSIT IS TO BE EFFECTED DIRECTED TOWARED SAID ANODE, SAID SECONDARY CATHODE BEING THE CONTAINER OF SAID CELL, SUBSTANTIALLY SHIELDING SAID SECONDARY CATHODE FROM DIRECT FLOW OF CURRENT FROM SAID ANODE, PROVIDING ONE OF A SHUNT WHICH INCLUDES A RESISTANCE BETWEEN SAID WORKPIECE AND SAID SECONDARY CATHODE AND OF A RESISTANCE IN SERIES WITH SAID WORKPIECE AND SAID SECONDARY CATHODE SUCH THAT THE ELECTRICAL POTENTIAL BETWEEN SAID WORKPIECE AND SAID SECONDARY CATHODE HAS A VALUE BETWEEN ZERO AND THE TENSION OF DISSOLVING OF SAID WORKPIECE IN THE ELECTOLYTE EMPLOYED AND SUCH THAT THE CURRENT BETWEEN SAID WORKPIECE AND SAID SECONDARY CATHODE IS SUFFICIENT TO TRAP WANDERING IONS ON SAID SECONDARY CATHODE.