Abstract: An earth-working implement and a method utilizing such an implement for preparing soil for planting seeds and concurrently planting the seeds wherein a plate-like plow stock penetrates the soil to a substantial depth below ground level, and the soil is concurrently leveled and smoothed inwardly behind the plow stock by concave and forwardly diverging cutting discs straddling the forward path of the plow stock and whose lower extremities are spaced a substantial distance above that of the plow stock for forming a substantially smooth linear area of loose soil. A furrow opener, behind the plow stock, forms a planting furrow in the soil along the linear area, while seeds are being deposited in the furrow and soil is pressed to cover the thus planted seeds. An improved mounting post arrangement is provided for supporting each of the diverging discs in predetermined angular relationship.

Abstract: A tongue for connecting a pull type implement to a towing vehicle is provided with a front end portion adapted to be detachably connected to the rear portion of a towing vehicle and a rear portion adapted to be pivotally connected to a lower front portion of the implement for movement about a substantially horizontal lateral axis, with an abutment fixedly supported by the frame and being positioned above the rear end portion of the frame, the abutment being adapted to abuttingly engage a corresponding upper front portion of the implement for limiting pivotal upward movement of the tongue relative to the implement and for permitting the abutment to swing forwardly away from the upper front portion of the implement to accommodate pivotal movement of the tongue relative to the implement incidental to downward movement of the towing vehicle relative to the implement and to unhitching of the implement.

Abstract: In apparatus for mounting agricultural implements to be propelled over the ground by a tractor or the like, a laterally extending tool bar arrangement is provided in which a tool bar mounting at least one implement is supported to extend substantially horizontally and to be movable to and from a lowered laterally extended position and a raised laterally retracted position while the tool bar is maintained substantially horizontal.