Furnace repair gun

Claim 1

IN COMBINATION, A MATERIAL TANK ADAPTED TO CONTAIN FINELY DIVIDED MATERIAL AND HAVING A SEMI-CYLINDRICAL BOTTOM, A VALVE CHEST LOCATED BENEATH SAID TANK AND HAVING A CYLINDRICAL BORE WITH DIAMETRICALLY OPPOSITE INTERSECTING INLET AND OUTLET OPENINGS AT RIGHT ANGLES THERETO, A ROTARY CYLINDRICAL VALVE MOUNTED IN SAID CHEST AND HAVING A THROUGH TRANSVERSE OPENING ADAPTED TO BE BROUGHT INTO REGISTRY WITH SAID INLET AND OUTLET OPENINGS IN THE VALVE CHEST FOR FEEDING THE FINELY DIVIDED MATERIAL FROM THE TANK, MEANS FOR TURNING THE ROTARY VALVE TO OPEN OR CLOSED POSITION AS DESIRED, AND A ROTARY STIRRING DEVICE CONTAINED IN THE TANK AND ARRANGED WITH ITS AXIS OF ROTATION PARALLEL TO THE AXIS OF ROTATION OF THE ROTARY VALVE, SAID ROTARY STIRRING DEVICE BEING ADAPTED TO MOVE IN CLOSE RELATION TO AND DIRECTLY AHEAD AND OVER THE INLET OPENING OF SAID VALVE CHEST, SAID INLET OPENING BEING OFFSET FROM A VERTO AND DIRECTLY AHEAD AND OVER THE INLET OPENING OF SAID RING DEVICE IN THE DIRECTION OF ITS ROTATION, AND MEANS FOR APPLYING AIR PRESSURE TO THE TOP OF SAID FINELY DIVIDED MATERIAL, WHERBY THE COMBINED ACTION OF THE STIRRING DEVICE AND AIR PRESSURE ON THE FINELY DIVIDED MATERIAL ASSURES A CONSTANT FEEDING OF THE FINELY DIVIDED MATERIAL FROM THE TANK.