Abstract: A grain drill has the planter disc pivot arms pivoted to a bracket. The bracket pivots are above or below a slotted bar whereby the planter discs may be adjusted longitudinally of the frame. The pivot arms may be raised or lowered by reversing the brackets.The seeder housings are clamped along a longitudinal slot in the bottom of the seed box so the housing may be adjusted to the position of the planter disc. The seeder discs are clamped to a square shaft so they can be adjusted to the position of the housing.

Abstract: A rotary harrow has soil-working members that are protected and, to some extent, supported from the ground by an elongated transverse beam that is pivoted to the front of the frame. The beam is spring biased to an operative location adjacent the soil-working member connections and vertically adjustable with respect to those members. The beam is rounded off at its lower surfaces to level the ground and ride along the ground. If debris becomes lodged between the beam and soil-working members, the beam can pivot forwardly against spring opposition to release the debris. The pivot axis for the beam is substantially directly above the beam itself.