Discharging device for a bunker

Claim 1

IN COMBINATION WITH A DISCHARGING DEVICE FOR A BUNKER OR THE LIKE HAVING A BOTTOM DISCHARGE OUTLET, A DISCHARGE PLATE MOUNTED BELOW SAID DISCHARGE OUTLET AND OPERATIVE TO SUPPORT THE MATERIAL IN SAID BUNKER WITH ITS NATURAL SLOPE, SAID DISCHARGE PLATE HAVING A CYLINDRICAL PORTION WITH ITS CONVEX SURFACE FACING SAID OUTLET, AND AN EXTENSION MEANS EXTENDING FROM AT LEAST ONE END OF SAID CYLINDRICAL PORTION IN COINCIDENT RELATION THERETO, SAID EXTENSION MEANS BEING OF A GREATER RADIUS THAN THE RADIUS OF SAID CONVEX SURFACE; SHAFT MEANS OPERATIVELY JOINED TO SAID PLATE AND POSITIONED SUBSTANTIALLY COINCIDENT WITH THE AXIS OF THE CYLINDRICAL ARC THEREOF; AND MEANS OPERATIVELY CONNECTED TO SAID SHAFT MEANS FOR OSCILLATING SAID DISCHARGE PLATE ABOUT THE AXIS THEREOF TO DISCHARGE MATERIAL FROM THE BUNKER, THE LENGTH OF SAID DISCHARGE PLATE EXTENDING BEYOND THE BOTTOM OF THE NATURAL SLOPE LINE OF MATERIAL BEING DISCHARGED FROM THE BUNKER WHEN THE CENTRAL PORTION OF SAID DISCHARGE PLATE IS IN A NEUTRAL POSITION RELATIVE TO THE DISCHARGE OUTLET, AND DURING OSCILLATION, SAID PLATE IS OPERATIVE FOR MOVEMENT BETWEEN OPPOSITE VERTICAL PLANES THROUGH THE LOWER DISCHARGE OUTLET OF SAID DISCHARGING DEVICE, SAID PLANES BEING POSITIONED ON OPPOSITE SIDES OF A PLANE OF SYMMETRY THROUGH SAID SHAFT MEANS.