Method of producing colored china clay images

Claim 1

IN A PROCESS OF PRODUCING COLORED CHINA CLAY IMAGES, THE STEPS OF DEPOSITING ON A SUBSTANTIALLY HORIZONTAL SURFACE OF A CAST CHINA CLAY BODY AN AQUEOUS SUSPENSION OF A WATER-INSOLUBLE METAL COMPOUND NOT ABSORBABLE BY SAID CHINA CLAY BODY AND WHICH ON BURNING FORMS A COLORED COMPOUND WITH CHINA CLAY IN AN AMOUNT SUFFICIENT TO COVER SAID SURFACE OF SAID CAST BODY AND CONTAINING A MAXIMUM OF 6% BY WEIGHT OF SAID METAL COMPOUND AND ALSO CONTAINING SUGAR AS A VISCOSITY INCREASING ADDITIVE, SAID SURFACE HAVING DEPRESSIONS OF VARYING DEPTH; ALLOWING SAID METAL COMPOUND IN THE THUS APPLIED SUSPENSION TO SETTLE IN THE SAID DEPRESSIONS IN SAID SURFACE OF SAID CAST BODY, THEREBY FORMING A COATING OF SAID METAL COMPOUND ON SAID SURFACE THE THICKNESS OF WHICH VARIES IN DIRECT PROPORTION TO THE DEPTH OF SAID DEPRESSIONS; REMOVING THE SUPERNATANT LIQUID FROM SAID SURFACE; AND BURNING SAID CAST CHINA CLAY BODY THEREBY COMBINING SAID METAL COMPOUND WITH THE CHINA CLAY AND FORMING A COLORED CHINA CLAY IMAGE.