Seed planter depth control

Abstract

A planter to be towed that includes a frame supported, rotatably mounted 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, a seed tube for depositing seed into the furrow, a pair of rotatable gauge wheels having supports that individually and pivotally connect the wheels to the frame with each wheel being located generally adjacent an outer surface of a disk, furrow closing structure mounted rearwardly of the disks and gauge wheels, gauge wheel adjustment structure including a lever pivotally mounted on said frame and having one end adapted to engage and move the wheel supports, a slide for moving the other end of the lever, a plate having a plurality of equally spaced holes, a handle resiliently mounted on the slide and having structure to engage the holes to set and maintain furrow depth and adjustment structure for movably mounting the plate on the frame wherein when the disks and wheels contact a level surface the zero position hole is engaged by the handle structure and the plate fixed to the frame for accurate furrow depth control.