Abstract: A chisel point to shatter compacted soil having a nose that penetrates the soil, a tail that points in an upward direction, a head that extends in a downstream direction from the nose, a body that connects the head to the tail in the downward direction and in the upward direction, and a pair of wings that laterally protrudes from the body in the downstream direction and in a downward direction.

Abstract: A chisel point to shatter compacted soil having a nose that penetrates the soil, a tail that points in an upward direction, a head that extends in a downstream direction from the nose, a body that connects the head to the tail in the downward direction and in the upward direction, and a pair of wings that laterally protrudes from the body in the downstream direction and in a downward direction.

Abstract: A tillage tool includes a relatively narrow shank that slices through the soil while a ripper point at its lower end fractures and lifts the subsoil. Minimum surface disturbance adjacent the opposite sides of the shank is assured through the provision of a pair of independently mounted down-pressure wheels on opposite sides of the shank that engage and apply constant downward pressure against soil tending to erupt at the top surface. Each down pressure wheel is mounted to the shank assembly by its own leaf spring so that the two wheels react to ground changes independently of one another and without adversely affecting each other. A guide plate associated with each leaf spring prevents twisting of the spring as it flexes and provides stops for limiting the opposite extremes of up and down flexing of the spring.

Abstract: A tillage tool includes a relatively narrow shank that slices through the soil while a ripper point at its lower end fractures and lifts the subsoil. Minimum surface disturbance adjacent the opposite sides of the shank is assured through the provision of a pair of independently mounted down-pressure wheels on opposite sides of the shank that engage and apply constant downward pressure against soil tending to erupt at the top surface. Each down pressure wheel is mounted to the shank assembly by its own leaf spring so that the two wheels react to ground changes independently of one another and without adversely affecting each other. A guide plate associated with each leaf spring prevents twisting of the spring as it flexes and provides stops for limiting the opposite extremes of up and down flexing of the spring.

Abstract: A towable, furrow opening assembly has an intermediate opener and delivery tubes for deposit of materials such as seed into the opened furrow, together with a trailing press wheel and an aligned, leading wheel such that furrow depth is controlled by the wheels whose corresponding, articulated frames are looped over the opener. Buckling of the frames at the will of the operator varies the depth of the furrow.

Abstract: In a drill, there is provided the combination of a pair of foldable pivot frames to each of which is attached a wheeled wing frame for up and down swinging movement, together with a tongue assembly for effecting the folding action, as well as a subframe for each wing made up of a T-frame and a hoe frame especially adapted for opening seed-receiving furrows and pressing the soil in each seeded furrow.