Process of making carbonaceous electrode paste

Claim 1

IN THE PRODUCTION OF ELECTRODE PASTE THE STEPS OF MIXING CARBONACEOUS MATERIAL IN LUMP FORM SELECTED FROM THE GROUP CONSISTING OF ANTHRACITE COAL, PITCH COKE AND PETROLEUM COKE THE MAJOR PART OF WHICH IS RETAINED ON A 100-MESH SCREEN WITH AN ORGANIC FLUID MATERIAL MISCIBLE WITH THE BINDERS USED IN MAKING SUCH ELETRODES SELECTED FROM THE GROUP CONSISTNG OF FLUID PETROLEUM HYDROCARBONS, AND TRICHLORETHLYENE, SUBMITTING SUCH MIXTURE TO A GRINDING OPERATION SO THAT AS THE LUMPS ARE FRACTURED NEWLY EXPOSED SURFACES ARE IMMEDIATELY WETTED WITH SAID FLUID MATERIAL AND ADSORPTION OF AIR AN SUCH FACES IS KEPT TO A MINIMUM, CONTINUING SUCH GRINDING UNTIL A MASS OF FINES IS OBTAINED THAT WILL PASS THROUGH A 100-MESH SCREEN AND 40% OR MORE WILL PASS THTROGH A 200-MESH SCREEN, MIXING SUCH FINES WITH MATERIAL OF THE SAME NATURE THAT PASSES THROUGH A 1/2-INCH MESH SCREEN BUT IS RETAINED ON A 100-MESH SCREEN AND COMBINING WITH SUCH MIXTURE FROM 10% TO 35% OF BINDER SELECTED FROM THE GROUP CONSISTING OF TARS AND PITCHES.