Add to ORKGPatent for a new and improved self-cleaning plow. This design consists in "[t]he combination of a mold-board having a plane face on the larger portion of its area, a blade having an axle journaled near the center of the said plane, a wheel journaled in the plow, with its rim parallel to and extending below the landside of the plow, a beveled gear-wheel upon the said wheel-axle, and another beveled wheel upon the blade-axle, engaging each other" (lines 79-87)