Vapor generator

Claim 1

A STEAM GENERATOR COMPRISING A HOUSING DEFINING A VAPORIZING CHAMBER HAVING A DRAIN PORT AT THE BOTTOM AND AN OPEN MOUTH AT THE TOP, A COVER MEMBER FORMED OF AN ELECTRICAL INSULATING MATERIAL, SAID COVER MEMBER BEING SEALED TO SAID HOUSING OVER SAID MOUTH, SAID COVER HAVING A CENTRALLY DISPOSED STEAM OUTLET PASSAGEWAY CONNECTED BETWEEN SAID CHAMBER AND THE OUTSIDE OF SAID COVER, A PLURALITY OF RIGID TERMINAL MEMBERS SECURED TO SAID COVER AND EXTENDING THERETHROUGH INTO SAID CHAMBER, AN INSULATING PLATE MOUNTED IN SAID CHAMBER ON SAID TERMINAL MEMBERS, SAID PLATE HAVING A DEPENDING ANNULAR FLANGE ABOUT THE PERIPHERY THEREOF, A PLURALITY OF CARBON ELECTRODES, EACH HAVING AN ARCUATE GROOVE AT THE TOP THEREOF FOR RECEPTION OF A PORTION OF SAID DEPENDING FLANGE, MEANS FOR TIGHTLY SECURING SAID ELECTRODES TO SAID PLATE WITH SAID FLANGE RECEIVED IN SAID GROOVES, AND MEANS FOR ELECTRICALLY CONNECTING EACH OF SAID ELECTRODES TO A RESPECTIVE ONE OF SAID TERMINALS.