Process for applying protective metallic coatings

Claim 1

THE PROCESS FOR APPLYING A PROTECTIVE AND AN ADHERENT COAT TO THE SURFACE OF A BASE METAL; WHICH COMPRISES PROVIDING A MIXTURE OF THE POWDERED METALS; CHROMIUM, BORON, AND NICKEL IN SUBSTANTIALLY EUTECTIC PROPORTIONS, POWDERED GLASS FRIT OF QUARTZ, FELDSPAR, BORAX AND NICKEL OXIDE, AND CLAY; ADDING WATER TO THE MIXTURE ABOUT TO A SLIP COMPOSITION; GRINDING THE MIXTURE TO A PARTICLE FINENESS CAPABLE OF PASSING A SCREEN OF 100 MESH TO THE INCH IN A SUBSTANTIALLY UNIFORM DISTRIBUTION IN A SLIP: APPLYING THE SLIP IN SUBSTANTIALLY UNIFORM DEPTH UPON THE SURFACE OF THE BASE METAL; DRYINUG THE SLIP ON THE BASE METAL; AND FIRING THE DRIED SLIP ON THE BASE METAL WITHIN OR NEAR A TEMPERATURE RANGE OF FROM 1850 TO 2100*F. TO THE FUSION OF THE DRIED SLIP AND ITS EVEN DISTRIBUTION ON THE BASE METAL AS A PROTECTIVE COAT OF SUBSTANTIALLY UNIFORM DEPTH STRONGLY AND PERMANETLY ADHERENT TO THE SURFACE OF THE BASE METAL.