Apparatus for mixing materials

Claim 1

APPARATUS FOR PRODUCING A MIXTURE HAVING PREDETERMINED PERCENTAGES OF CERTAIN COMPOUNDS OR ELEMENTS COMPRISING: FIRST MEANS FOR PREPARING AND STORING A RAW MIX APPROXIMATELY THE DESIRED PERCENTAGES OF SAID COMPOUNDS OR ELEMENTS; SECOND MEANS, INCLUDING A PLURALITY OF MATERIALS PREPARING DEVICES, FOR PREPARING AND STORING A CORRESPONDING PLUALITY OF CORRECTION MATERIALS, EACH CORRECTION MATERIAL BEING SELECTED TO PERMIT THE CORRECTION OF A DEFICIENCY OR EXCESS OF A DIFFERENT ONE OF SAID COMPOUNDS OR ELEMENTS; THIRD MEANS OPERABLE TO RECEIVE TESTS SAMPLES AND PROVIDE SIGNALS INDICATING THE PERCENTAGE CONTENTS OF SAID COMPOUNDS OR ELEMENT THEREIN; FOURTH MEANS FOR SELECTIVELY CONVEYING SAID RAW MIX AND EACH OF SAID CORRECTION MATERIALS TO SAID THIRD MEANS; FIFTH MEANS INCLUDING MEANS DEFINING PREDETERMINED SIMULTANEOUS EQUATIONS, RESPONSIVE TO SAID SIGNALS PROVIDED BY SAID THIRD MEANS FOR SOLVING SAID EQUATIONS TO DETERMINE THE PROPER AMOUNTS OF SAID CORRECTION MATERIALS NEEDED FOR MODIFYING SAID RAW MIX TO COMPENSATE FOR ANY COMPOUND OR ELEMENT DEFICIENCY OR EXCESS THEREIN; AND SIXTH MEANS FOR CONVEYING SAID NEEDED CORRECTION MATERIALS TO SAID FIRST MEANS.