Patent ID: 6786806
Filing Date: 2004-09-07
Classification: B24B,Y10S,Y10T

Abstract:
A reciprocating rotary mower blade sharpener holder apparatus comprising:a housing frame having an extended front side and a rear side, a top side, a bottom side, and partially open opposite sides for holding a rotary mower blade; said housing frame having a first securing clamp positioned vertically from the topside thereof, and projecting into the housing frame for horizontally holding the rotary mower blade on a V-shaped cradle of a second securing clamp projecting into the housing frame from below the housing frame to maintain the blade position conducive to sharpening of a vertical blade edge; two horizontal cylindrical rails aligned vertically; said housing frame mounted on a bracket calibrated to reciprocate in a repeating cycle and slidable on said two horizontal cylindrical rails aligned vertically; and said bracket attached to an expansion segment of a pneumatic cylinder mounted horizontally, and aligned below and to a side of said rails; whereby the secured rotary mower blade is sharpened automatically in a reciprocating movement by a stationary rotary grinder wheel with flat sharpening sides.