Process of plating bright silver alloy

Claim 1

A METHOD OF ELECTRODEPOSITING A BRIGHT SILVER-ANTIMONY PLATE UPON A METAL ARTICLE, WHICH COMPRISES IMMERSING THE ARTICLE TO BE PLATED IN AN AQUEOUS ELECTROLYTE CONSISTING ESSENTIALLY OF FROM 20 TO 150 GRAMS PER LITER OF SILVER CYANIDE, FROM 20 TO 100 GRAMS PER LITER OF SILVER CYANIDE, SELECTED FROM THE GROUP CONSISTING OF POTASSIUM, SODIUM, AND AMMONIUM CYANIDES, FROM 10 TO 300 GRAMS PER LITER OF A TARTRATE SELECTED FROM THE GROUP CONSISTING OF POTASSIUM, SODIUM, AND AMMONIUM TARTRATES, FROM 2 TO 8 GRAMS PER LITER OF A HYDROXIDE SELECTED FROM THE GROUP CONSISTING OF POTASSIUM, SODIUM, AND AMMONIUM HYDROXIDES, FROM 5 TO 40 GRAMS PER LITER OF A CARBONATE SELECTED FOR THE GROUP CONSISTING OF POTASSIUM, SODIUM, AND AMMONIUM CARBONATES, AND FROM 3 TO 100 GRAMS PER LITER OF AN ANTIMONYL TARTRATE SELECTED FROM THE GROUP CONSISTING OF POTASSIUM, SODIUM, AND AMMONIUM ANTIMONYL TARTRATES, PASSING AN ELECTRIC CURRENT THROUGH THE ELECTROLYTE IN SUCH A MANNER THAT THE ARTICLE BECOMES A CATHODE, REGULATING THE ELECTRIC CURRENT TO PROVIDE A CURRENT DENSITY OF FROM 5 TO 90 AMPERES PER SQUARE FOOT, MAINTAINING THE PH IN THE ELECTROLYTE OF 11.0 TO 13.5 BY PROPER ADJUSTMENT OF SAID INGREDIENTS ADDED TO THE BATH, AND HEATING THE ELECTROLYTE TO A TEMPERATURE BETWEEN 70* F. AND 140* F.

Claim 2

A METHOD OF ELECTRODEPOSITING A BRIGHT SILVER-ANTIMONY PLATE UPON A METAL ARTICLE, WHICH COMPRISES IMMERSING THE ARTICLE TO BE PLATED IN AN AQUEOUS ELECTROLYTE CONSISTING ESSENTIALLY OF FROM 20 TO 150 GRAMS PER LITER OF SILVER CYANIDE, FROM 20 TO 100 GRAMS PER LITER OF SILVER CYANIDE, SELECTED FROM THE GROUP CONSISTING OF POTASSIUM, SODIUM, AND AMMONIUM CYANIDES, FROM 10 TO 300 GRAMS PER LITER OF A TARTRATE SELECTED FROM THE GROUP CONSISTING OF POTASSIUM, SODIUM, AND AMMONIUM TARTRATES, FROM 2 TO 8 GRAMS PER LITER OF A HYDROXIDE SELECTED FROM THE GROUP CONSISTING OF POTASSIUM, SODIUM, AND AMMONIUM HYDROXIDES, FROM 5 TO 40 GRAMS PER LITER OF A CARBONATE SELECTED FOR THE GROUP CONSISTING OF POTASSIUM, SODIUM, AND AMMONIUM CARBONATES, AND FROM 3 TO 100 GRAMS PER LITER OF AN ANTIMONYL TARTRATE SELECTED FROM THE GROUP CONSISTING OF POTASSIUM, SODIUM, AND AMMONIUM ANTIMONYL TARTRATES, PASSING AN ELECTRIC CURRENT THROUGH THE ELECTROLYTE IN SUCH A MANNER THAT THE ARTICLE BECOMES A CATHODE, REGULATING THE ELECTRIC CURRENT TO PROVIDE A CURRENT DENSITY OF FROM 5 TO 90 AMPERES PER SQUARE FOOT, MAINTAINING THE PH IN THE ELECTROLYTE OF 11.0 TO 13.5 BY PROPER ADJUSTMENT OF SAID INGREDIENTS ADDED TO THE BATH, AND HEATING THE ELECTROLYTE TO A TEMPERATURE BETWEEN 70* F. AND 140* F.