Patent ID: 7537218

Claim:
A jaw for a chuck of a turning device; the chuck rotating about a centerline; said jaw comprising: a base having left and right sides and including: retaining means for retaining said base to said chuck; radial adjustment means for cooperating with the chuck for adjusting said base radially outwardly from the center line of the chuck; and a radially facing, cam bearing surface; a tooth having left and right sides and including: a face for engaging a workpiece; and a radially facing, cam bearing surface radially spaced from said cam bearing surface of said base; said base and tooth including cooperating attaching means for attaching said tooth to said base such that said face is radially movable relative to said base; and a movable cam including: a radially facing, base bearing surface bearing against said cam bearing surface of said base; and a radially facing, tooth bearing surface facing away from and radially spaced from said base bearing surface and bearing against said cam bearing surface of said tooth; said cam variable in radial thickness between said base bearing surface and said tooth bearing surface by rotational or sliding movement of said cam between said cam bearing surface of said base and said cam bearing surface of said tooth such that rotation or sliding movement of said cam between said cam bearing surface of said base and said cam bearing surface of said tooth changes the radial spacing between said cam bearing surface of said base and said cam bearing surface of said tooth such that said face moves radially relative to said base.