Means for determining carbon content

Claim 1

IN AN APPARATUS FOR DETERMINING THE CARBON CONTENT OF A FINELY DIVIDED SOLID, THE IMPROVED COMBINATION OF A VERTICALLY ELONGATED COMBUSTION ZONE, A VALVE BODY HAVING AXIALLY ALIGNED INLET AND OUTLET CONDUITS AND SAID BODY HAVING A CHANNEL THEREIN, A VALVE BLOCK SLIDEABLY RECEIVED IN SAID CHANNEL AND HAVING AT LEAST ONE SOLID-METERING CAVITY EXTENDING THERETHROUGH, SAID AT LEAST ONE CAVITY BEING REGISTRABLE WITH SAID INLET AND OUTLET CONDUITS, MEANS FOR PASSING TO SAID INLET CONDUIT A STREAM OF CARRIER GAS AT CONSTANT FLOW RATE TO ENTRAIN FINELY DIVIDED SOLIDS IN SAID AT LEAST ONE CAVITY WHEN SAID CAVITY REGISTERS WITH SAID INLET AND OUTLET CONDUITS, A GENERALLY VERTICAL CONDUIT FOR PASSING SAID GAS-ENTRAINED SOLID INTO SAID COMBUSTION ZONE TO EFFECT COMBUSTION OF CARBON TO CARBON DIOXIDE, A CONDUIT FOR WITHDRAWING A GAS STREAM CONTAINING SAID CARBON DIOXIDE FROM THE COMBUSTION ZONE, AND MEANS FOR DETERMINING THE CARBON DIOXIDE CONTENT OF SAID WITHDRAWN GAS STREAM AS A MEASURE OF THE CARBON CONTENT OF SAID FINELY DIVIDED SOLID.