| 主权项 |
1. Apparatus for supporting a work-piece within a hollow spindle of a turning machine comprising: a first and second disc-assembly each with a central aperture of substantially the same size, defined by central aperture walls, configured to accept a work-piece; said first and second disc-assembly being held in adjacent configuration such that said central apertures generally align with each other; and at least one spring/resilient-member housed between adjacent first and second disc-assemblies; within a channel formed by at least a pair of grooves, one within each disc-assembly, and located adjacent at least part of said aperture walls of each disc; such that part of the spring/resilient member protrudes inwardly beyond said walls, so that in use part of said at least one spring/resilient member abuts against said work-piece and thereby directly supports said work-piece during rotation about the axis of said hollow spindle. |
