Material cooling apparatus

Claim 1

IN A COOLING DEVICE OF THE CHARACTER DESCRIBED THE COMBINATION OF A ROTATABLE BIN STRUCTURE PROVIDED WITH AN ANNULAR DOWNWARDLY AND OUTWARDLY INCLINED INNER WALL AND AN ANNULAR DOWNWARDLY AND INWARDLY INCLINED OUTER WALL, SAID OUTER WALL BEING OF A SHORTER LENGTH THAN SAID INNER WALL, A SUBSTNATIALLY HORIZONTAL SHELF EXTENDING OUTWARDLY FROM THE BASE OF THE INNER WALL AND BEYOND THE LOWER EXTREMITY OF SAID OUTER WALL, SAID SHELF ALSO BEING OPEN TO THE ATMOSPHERE, MEANS FOR SUPPORTING AND ROTATING SAID BIN STRUCTURE, A HOOD COMPRISED OF INNER AND OUTER SEGMENTS ENCLOSING THE TOP PORTION OF SAID BIN STRUCTURE AND PROVIDED WITH EXHAUST CONDUIT MEANS, MEANS FOR DRAWING COOLING ATMOSPHERE AIR INTO SAID BIN STRUCTURE AND INTO CONTACT WITH THE MATERIAL DISPOSED IN SAID BIN STRUCTURE AND FOR EXHAUSTING SAID AIR THROUGH SAID EXHAUST CONDUIT MEANS, A FIRST SEALING MEANS SEALING THE INNER SEGMENT OF SAID HOOD WITH THE ANNULAR DOWNWARDLY AND OUTWARDLY INCLINED INNER WALL OF THE BIN STRUCTURE, AND ANOTHER SEALING MEANS SEALING THE OUTER SEGMENT OF SAID HOOD WITH SAID ANNULAR DOWNWARDLY AND INWARDLY INCLINED OUTER WALL OF SAID BIN STRUCTURE SO AS TO INSURE THE PASSAGE OF COOLING ATMOSPHERIC AIR INTO AND THROUGH THE BIN STRUCTURE AND THE EXHAUSTING OF SAID AIR THROUGH SAID EXHAUST CONDUIT MEANS.