Abstract: A combination listing and bed shaping apparatus for use with a self-propelled vehicle having a three-point hitch. A tool bar assembly is provided which is secured to the three-point hitch so that tool bar assembly extends in a generally horizontal direction perpendicular to the path of travel of the self-propelled vehicle. Listing apparatus is carried by said tool bar assembly for forming furrows and raised beds. An additional tool bar is secured to the tool bar assembly permitting pivotal movement of said additional tool bar along about an axis parallel to the tool bar assembly. Bed shaping apparatus is carried by additional tool bar. An actuator is connected between the tool bar assembly and the additional tool bar for raising and lowering said additional tool bar with respect to said tool bar means.

Abstract: Automatic steering mechanism for use on apparatus for forming beds of uniform widths and rows of uniform spacing. The apparatus is of a type comprising a self-propelled vehicle having a steering apparatus for steering the vehicle, and a ground engaging implement carried by the vehicle for forming an indentation in the ground. The steering mechanism is comprised of a framework structure adapted to be secured to the front end of the vehicle. A boom structure is provided and is mounted on the framework for pivotal movement about a horizontal axis. An arm is also provided and is pivotally mounted on the outer extremity of the boom structure for rotation about a horizontal axis substantially parallel to the first named horizontal axis. An indentation following device is carried by each end of the arm. The indentation following device is capable of following an indentation in the ground made by the ground engaging implement in a previous pass through the field.