| 摘要 |
A segmented adjustable top jaw (25) capable of being mounted upon a chuck has a slot (100) partially extending the length of the jaw (25) and defining a body inner portion (105), a body outer portion (110) with a gripping surface (30), and a hinge (115) therebetween. Upon mounting the body inner portion (105) to the lathe, concentricity among cooperating top jaws (25) may be provided by deflecting the body outer portion (110) toward or away from the body inner portion (105) about the hinge (115), thereby causing the gripping surface (30) of the jaw (25) to rotate about the hinge (115) resulting in an upward or downward movement of the gripping surface (30). |
