Abstract: A rasp bar assembly is disclosed that includes a rasp bar having a plurality of rotation stops that contact the rasp bar mount. The plurality of rotation stops stabilize the rasp bar upon the rasp bar mount and prevent the rasp bar from rotating from its assembled position.

Abstract: An accelerator roll assembly for combines wherein one of the accelerator rolls comprises a conveyor roller having a conveyor belt extending therearound. The improved accelerator roll assembly is particularly adapted for use in a combine including a threshing assembly, straw walkers and a cleaning section and which further includes a belt type conveyor for conveying threshed material falling through the straw walkers to an opening to the cleaning section. An accelerator roll is mounted in front of and in closely spaced relation to a drive roller for the conveyor such that the accelerator roll and the conveyor belt passing around the conveyor drive roller cooperate to accelerate, in a downward direction, threshed material passing therebetween. The threshed material is directed through a rearwardly directed stream of air of sufficient velocity to entrain and carry rearward the lighter chaff and stalk particles while the heavier kernels of grain pass downward through the stream of air to the grain pan.

Abstract: The threshed material passing through the foraminous cage and concave of the processor section of the combine falls by gravity to a distribution auger in a trough at the bottom of the processor housing. The threshed material passes through a slot in the trough to a pair of accelerator rolls which throw the threshed material downwardly to the cleaning section of the combine. In order to help the distribution auger to distribute the threshed material to the slot whereby the threshed material is spread along the trough and discharges at a relatively even flow rate along the length of the slot, one or two movable trough extensions are added to reduce the width of the slot along a portion of its length.