Apparatus and method for production

Claim 2

FOR PRODUCING POWDERED METALLIC DEVELOPERS FOR ELECTROPHOTOGRAPHY AND METALLIC INKS AND PAINTS, CHARACTERIZED BY THE PRESENCE OF MICRON-SIZED METAL POWDERS, THE METHOD COMPRISING: SUBJECTING A SUBSTANTIALLY SMOOTH PLANAR SURFACE OF A SOLID PLATE OF THE METAL, WHICH IS TO PRODUCE THE POWDER FOR SAID DEVELOPERS, TO THE CUTTING ACTION OF AN ABRASIVE SURFACE RUBBED CONTINUOUSLY THEREAGAINST BENEATH AN INERT LIQUID TO PRODUCE SAID POWDER OF THE DESIRED ULTIMATE MICRON SIZE IN A SINGLE OPERATION, SAID LIQUID CONTAINING A FIXING AGENT FOR ADHERING THE POWDERS TO AN ELECTROPHOTOGRAPHICALLY SENSITIVE SURFACE, SAID FIXING AGENT BEING PRESENT IN SAID LIQUID DURING CUTTING AND BEING SOLUBLE IN SAID LIQUID.

Claim 3

FOR PRODUCING METALLIC DEVELOPERS FOR ELECTROPHOTOGRAPHY AND METALLIC INKS AND PAINTS, APPARATUS COMPRISING A VESSEL TO CONTAIN LIQUID, A FRIST CARRIER DISPOSED IN SAID VESSEL BELOW THE LIQUID LEVEL THEREIN, SAID CARRIER BEING ADAPTED TO SUPPORT A PLATE COMPOSED OF THE METAL FROM WHICH POWDER IS TO BE PRODUCED, A SECOND CARRIER ADJACENT SAID FIRST CARRIER ALSO CARRIED BY SAID VESSEL TO BE DISPOSED BENEATH THE LEVEL OF THE LIQUID THEREIN, AN ABRASIVE MEMBER ON SAID SECOND CARRIER, THE ABRASIVE MEMBER BEING OF SUCH FORM AS TO PRODUCE MICRONSIZED POWDERS WHEN RUBBED AGAINST THE SURFACE OF SAID METAL PLATE, MEANS TO URGE A SURFACE OF SAID PLATE ON TO THE SAID ABRASIVE MEMBER, AND MEANS TO MOVE CONTINUOUSLY AT LEAST ONE SAID CARRIER WHEREBY THE SAID ABRASIVE MEMBER HAS RELATIVE MOTION TO THE SURFACE OF SAID PLATE PRESENTED THERETO TO CUT THE FACE OF TEH METAL BENEATH THE SAID LIQUID.

Claim 4

FOR PRODUCING METALLIC DEVELOPERS FOR ELECTROPHOTOGRAPHY AND METALLIC INKS AND PAINTS, APPARATUS COMPRISING A VESSEL TO CONTAIN LIQUID, A FRIST CARRIER DISPOSED IN SAID VESSEL BELOW THE LIQUID LEVEL THEREIN, SAID CARRIER BEING ADAPTED TO SUPPORT A PLATE COMPOSED OF THE METAL FROM WHICH POWDER IS TO BE PRODUCED, A SECOND CARRIER ADJACENT SAID FIRST CARRIER ALSO CARRIED BY SAID VESSEL TO BE DISPOSED BENEATH THE LEVEL OF THE LIQUID THEREIN, AN ABRASIVE MEMBER ON SAID SECOND CARRIER, THE ABRASIVE MEMBER BEING OF SUCH FORM AS TO PRODUCE MICRONSIZED POWDERS WHEN RUBBED AGAINST THE SURFACE OF SAID METAL PLATE, MEANS TO URGE A SURFACE OF SAID PLATE ON TO THE SAID ABRASIVE MEMBER, AND MEANS TO MOVE CONTINUOUSLY AT LEAST ONE SAID CARRIER WHEREBY THE SAID ABRASIVE MEMBER HAS RELATIVE MOTION TO THE SURFACE OF SAID PLATE PRESENTED THERETO TO CUT THE FACE OF TEH METAL BENEATH THE SAID LIQUID.