Patent Specification: "Crop Processing Machine in a Combine Harvester". a combine harvester (10) comprises the threshing unit (16) arranged to receive and thresh a crop stream. the separating apparatus (24) is located downstream and behind the threshing unit (16) and arranged to receive the threshed culture stream and transport in a rearward direction. the front of a return tray (26) disposed below the separating apparatus (24) overlaps the rear of the stratifying tray (22). The stratifying tray is driven in an oscillating manner to transport a primary grain / shell flow back to a rear edge (22r) from where the primary grain / shell flow falls under gravity in a cleaning unit. return tray (26) is driven in an oscillating manner to carry a forward grain / shell flow forward to a front edge (26f) from which the secondary grain / shell flow falls under gravity to match the grain flow. / primary shell in the stratification tray (22). the cleaning unit comprises a fan 46 for generating a cleaning air stream that is directed through the falling grain / shell flow to encourage lighter material away from the grain. Various fin or tooth shaped crop flow interrupting elements (80) are secured to the underside of the return tray (26) above the stratification tray (22) to stop grain / shell flow and improve stratification. the same.resumo patente de invenção: "aparelho de processamento de cultura em uma ceifeira debulhadora". uma ceifeira debulhadora (10) compreende a unidade de debulhar (16) disposta para receber e debulhar um fluxo de cultura. o aparelho de separação (24) está localizado à jusante e para trás da unidade de debulhar (16) e disposto para receber o fluxo de cultura debulhado e transportar em uma direção traseira. a frente de uma bandeja de retorno (26), disposta abaixo do aparelho de separação (24), sobrepõe à parte traseira da bandeja de estratificação (22). a bandeja de estratificação é acionada em uma maneira oscilante para transportar um fluxo de grão/casca
