7 GRAIN AND SEED TREATING MACHINERY, COMPRISING GRAIN CLEANERS, SEPARATORS, AND DRIERS; GRAIN GANDLING EQUIPMENT-NAMELY, AUTOMATIC FEEDERS, DOCKAGE TESTERS, GRAIN SCALPERS AND ASPIRATORS; MATERIAL SAMPLERS, ROTORY FEEDER AND DISCHARGE VALVES, MOTOR DRIVEN BLOWERS, AND CONTINUOUS FLOW DRIERS FOR GRANULAR MATERIALS