Abstract: An apparatus to be towed that includes a frame supported, rotatably mounted, pair of furrow forming disks that are arranged to substantially contact each other at the approximate point of entry into the soil and diverge apart rearwardly and upwardly, and a frame supported, rotatable gauge wheel located adjacent each disk, with each wheel having a radially inwardly located recessed lip immediately adjacent the disk to trap soil removed from the furrow to form a mound of moist and substantially uncompacted soil along the edge of the furrow.

Abstract: A general purpose rasp bar carrying rotor construction for an axial flow-type harvester combine embodying a vaned impeller and a series of bars which cooperate with elements within the surrounding rotor casing for crop threshing and grain separation purposes in a novel and efficient manner. The rotor proper is generally of imperforate tubular cylindrical construction so that the crop material in its entirety is confined to the annulus which exists between the rotor and its casing. The threshing portion of the rotor having both helical and longitudinal extending rasp bars.