Process of casting metal on glass fiber mat

Claim 1

THE PROCESS OF CASTING A MOLTEN METAL IN AN INGOT MOLD TO FORM AN INGOT FREE FROM SURFACE IMPERFECTIONS WHICH IMPAIR THE WORKING OF THE INGOT INTO STRIP,COMPRISING IN COMBINATION, THE STEPS OF, DEPOSITING A MASS OF RELATIVELY LOOSELY COMPACTED FIBER GLASS HAVING A VISCOSITY OF NOT LESS THAN 100 POISES AT 2275* F. AND A DENSITY OF BETWEEN 2 1/2 TO POUNDS PER CUBIC FOOT OVER THE BOTTOM OF THE MOLD IN AN AMOUNT RANGING FROM 2 TO 7 POUNDS PER TON OF METAL TO BE POURED TO FORM A SUBSTANTIAL LAYER THEREIN, THE FIBERS OF THE FIBER GLASS HAVING A DIAMETER NOT GREATER THAN 0.005 INCH, AND POURING THE MOLTEN METAL INTO THE MASS OF FIBER GLASS TO FILL THE MOLD AND FLOAT THE FIBER GLASS ON THE SURFACE OF THE POURED METAL, THE FIBER GLASS ABSORBING THE SPLASHING AND SPATTERIN OF THE MOLTEN METAL AS THE METAL IS POURED THERETHROUGH TO PREVENT SCABBING OF THE WALLS OF THE MOLD, THE MOLTEN METAL RENDERING THE FIBER GLASS FLUID ADJACENT THE SURFACE OF THE METAL AS THE MOLD IS FILLED WHEREBY THE FLUID GLASS WETS THE WALLS OF THE MOLD AS THE METAL AND FLOATING FIBER GLASS RISE THEREIN TO FORM A THIN LAYER OF GLASS ON THE SURFACE OF THE MOLD AND PROVIDE A GOOD SURFACE ON THE INGOT AS THE METAL SOLIDIFIES IN THE MOLD.