1813 J. Watt Let. in S. Smiles (1888) v. 148 I have not heard from you in reply to my letter about the lathe... An alteration for the better is making in the oval chuck.
a1877 E. H. Knight I. 549/1 The elliptic or oval chuck was invented by Abraham Sharp, and consists of three parts, the chuck, the slider, and the eccentric circle.
1912 6 June 539/1 (title) An oval chuck for ornamental work.