Patent ID: 7000510

Claim:
In combination with a clamshell lathe, a device for centering and aligning the clamshell lathe with a workpiece to be machined, said device comprising: a) a body member adapted to be positioned in a pocket formed in a stationary member of a clamshell lathe and at least partially extending outward from an inner diameter of the stationary member; b) a set screw rotatably coupled to the body member and having external threads for cooperating with a threaded bore in the stationary member leading to the pocket whereby rotation of the set screw displaces the body member relative to said pocket; c) an extension plate slidingly coupled to the base portion of the body member, the extension plate having a threaded nut affixed thereto; and d) a rotatable adjustment screw operatively coupled between the body member and the threaded nut for axially translating the body member relative to the extension plate.