Patent ID: 7918715

Claim:
An apparatus for sharpening clockwise rotating standard blades and counter-clockwise rotating standard blades, comprising: an apparatus base; a blade fixture removably attached to said apparatus base in one of a first position when sharpening clockwise rotating standard blades and removably attached in a second position when sharpening counter-clockwise rotating standard blades, wherein said blade fixture comprises: a fixture base plate with removable attachment for securing said blade fixture to said apparatus base in one of said first and said second positions on said apparatus base; a first set of uprights attached to said fixture base plate at a first end of said first uprights; a blade fixture plate attached to said first set of uprights at a second end of said first uprights, said blade fixture plate attached at an angle to said fixture base plate; a plurality of blade stop assemblies slideably attached to said blade fixture plate, said blade stop assemblies comprising a bar, a blade stop pin, a guide pin and a securing mechanism; and a blade clamp for holding a blade within the blade fixture during grinding, the blade clamp having a removable attachment for securing said blade clamp to said blade fixture plate; a pair of second uprights attached to said apparatus base; a slide shaft, said slide shaft extending laterally between said second uprights; a slide bushing rotatably and slideably attached to said slide shaft; a releasable bar clamp attached to said slide bushing; a handle shaft adjustably mounted to said bar clamp, said handle shaft having a first and second end; a handle grip attached to said first end of said handle shaft; and a sharpening mechanism attached to said second end of said handle shaft.