GRAIN COMBINE Russian patent published in 2003 - IPC

FIELD: agricultural engineering. SUBSTANCE: grain combine has two threshing units, straw combing unit made in the form of drum and positioned between two threshing units. Drum is provided with combs and separating grid. Beater is positioned downstream of combing unit drum. Grain heap comprising biologically valuable grain is delivered from under first threshing unit and separating grid of straw combing unit by means of main tossing board onto screen used for air fanning cleaning procedure. Upon completion of cleaning procedure, biologically valuable grain is charged by screw and elevator into bin. Grain heap comprising fodder grain is supplied from under second threshing unit by additional tossing board onto chaff filler and directed by means of fan-grinder into pull-type transport cart. EFFECT: increased yield of seed grain threshed by first threshing unit. 3 dwg