Simon Fairman
Encyclopedia
Simon Fairman of West Stafford, Connecticut, invented the lathe chuck
Chuck (engineering)
A chuck is a specialized type of clamp used to hold an object, usually an object with radial symmetry, especially a cylindrical object. It is most commonly used to hold a rotating tool or a rotating workpiece...

 in 1830; his son-in-law, Austin F. Cushman
Austin F. Cushman
Austin F. Cushman invented the self-centering Cushman universal chuck in 1862; his uncle, Simon Fairman, had previously invented the lathe chuck.-Biography:...

 invented the self-centering Cushman Universal Chuck.
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