The apparatus includes a grain column through which grain may flow, wherein said grain column includes a lower discharge surface and an upper discharge surface, said grain column further has a discharge opening having a substantially uniform width {HEAD ~ W} which is defined by said lower discharge surface and said {TAIL ~ upper discharge surface}, said width W≧5.0 inches 
is defined by
The apparatus includes a grain column through which grain may flow , wherein said grain column includes a lower discharge surface and an upper discharge surface , said grain column further has a discharge opening having a substantially uniform width { HEAD ~ W } which is defined by said lower discharge surface and said { TAIL ~ upper discharge surface } , said width W≧5.0 inches
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