Abstract: A grain delivery conveyor for a grain tank of an agricultural combine includes a first gear box including a first input connectable in rotatably driven relation to a rotatable power source for rotation about a first axis, and a first output rotatable about a second axis angularly related to the first axis by rotation of the first rotatable input; a second gear box including a second rotatable input connected in rotatably driven relation to the first output for rotation about the second axis, and a second output rotatably driveable about a third axis angularly related to the second axis by rotation of the second rotatable input; and an elongate conveyor assembly connected in rotatably driven relation to the second output, the second gear box and the conveyor being jointly pivotable about at least the second axis for varying a position of a free end of the conveyor relative to the grain tank.

Abstract: A grate for an agricultural combine includes curved grate segments, each of which include mounting holes in at least one end segment. To provide a threshing grate, the end segments of the grate segments are offset to provide a “step”, or discontinuity in the radius of the assembled grate, which improves the threshing efficiency of the combine. The step can be provided by offsetting mounting holes between adjacent grate segments, and securing the grates to a frame member.

Abstract: A grate for an agricultural combine includes curved grate segments, each of which include mounting holes in at least one end segment. To provide a threshing grate, the end segments of the grate segments are offset to provide a “step”, or discontinuity in the radius of the assembled grate, which improves the threshing efficiency of the combine. The step can be provided by offsetting mounting holes between adjacent grate segments, and securing the grates to a frame member.

Abstract: The extension has an elongate blade shape and is positionable in radially outwardly extending relation along a leading edge of a rotor inlet flight, the blade having a leading edge located forwardly of the leading edge of the flight so as to rotate in advance thereof. The leading edge preferably has a curved, swept back shape relative to the rotational direction, which gradually increases in slope in the radial outward direction, so as to facilitate smooth acceleration of the crop material in the radial outward direction. The extension has a rearwardly facing blade or crop flow surface oriented at an angle of attack less than the angle of attack of the associated flight, so as to be less blunt and to facilitate smooth crop material flow onto the flight. The extension shape generates a rearwardly directed air flow when rotated.

Abstract: The extension has an elongate blade shape and is positionable in radially outwardly extending relation along a leading edge of a rotor inlet flight, the blade having a leading edge located forwardly of the leading edge of the flight so as to rotate in advance thereof. The leading edge preferably has a curved, swept back shape relative to the rotational direction, which gradually increases in slope in the radial outward direction, so as to facilitate smooth acceleration of the crop material in the radial outward direction. The extension has a rearwardly facing blade or crop flow surface oriented at an angle of attack less than the angle of attack of the associated flight, so as to be less blunt and to facilitate smooth crop material flow onto the flight. The extension shape generates a rearwardly directed air flow when rotated.

Abstract: A grain delivery conveyor for a grain tank of an agricultural combine includes a first gear box including a first input connectable in rotatably driven relation to a rotatable power source for rotation about a first axis, and a first output rotatable about a second axis angularly related to the first axis by rotation of the first rotatable input; a second gear box including a second rotatable input connected in rotatably driven relation to the first output for rotation about the second axis, and a second output rotatably driveable about a third axis angularly related to the second axis by rotation of the second rotatable input; and an elongate conveyor assembly connected in rotatably driven relation to the second output, the second gear box and the conveyor being jointly pivotable about at least the second axis for varying a position of a free end of the conveyor relative to the grain tank.