Anodic protection for plating system

Claim 1

IN A CONTINUOUSLY REGENERATED SYSTEM FOR DEPOSITING NICKEL PLATE BY CHEMICAL REDUCTION IN AN AQUEOUS SOLUTION, COMPRISING A METAL PLATING TANK, A COOLER REGENERATOR TANK, A HEAT EXCHANGER, AND METAL PIPES FOR CONVEYING THE SOLUTION FROM THE PLATING TANK TO THE COOLER REGENERATOR TANK, FROM THE COOLER REGENERATOR TANK TO THE HEAT EXCHANGER, AND FROM THE HEAT EXCHANGER TO THE PLATING TANK; THE COMBINATION THEREWITH, OF A METAL SHEET IMMERSED IN THE PLATING TANK, A PLURALITY OF METAL RING INSERTS APPLIED TO THE PIPES SO AS TO BE INSULATED THEREFROM, TWO INSERTS BEING APPLIED ADJACENT TO THE INLET AND OUTLET OF THE PLATING TANK, ANOTHER INSERT BEING APPLIED ADJACENT THE INLET TO THE COOLER REGENERATOR TANK, STILL ANOTHER INSERT BEING APPLIED BETWEEN THE LAST-MENTIONED INSERT AND THE INSERT ADJACENT THE OUTLET OF THE PLATING TANK, TWO INSERTS BEING APPLIED ADJACENT THE INLET AND OUTLET OF THE HEAT EXCHANGER, MEANS FOR CONNECTING THE NEGATIVE SIDE OF A DIRECT-CURRENT SOURCE TO THE METAL SHEET AND TO THE RING INSERTS, AND MEANS FOR CONNECTING THE POSITIVE SIDE OF THE DIRECT-CURRENT SOURCE TO THE PIPES AND THEREBY ALSO TO THE METAL PLATING TANK.