METHOD AND APPARATUS FOR RE-CONDITIONING COMPACT DISCS

摘要

An apparatus and method are provided herein for resurfacing digital- information- bearing discs. The apparatus is one for resurfacing such discs which are of the type having a central opening and having a protective surface on one side overlyi ng an annular information layer extending part way from the edge of the disc toward the central opening. The apparatus includes a cabinet having side walls and defining a lower compartment and an upper processing compartment. First and second motors are located in the lower compartment. The first motor has a generally-vertically-extendi ng first shaft, and the second motor has a generally-vertically-extending second shaft, the first and second shaft being disposed in parallel, spaced-apart relationship and being rotatable in opposite directions at approximately the same rotational speed. The first shaft has mounting means thereon for mounting a disc in a generally-horizontal positio n with the protective surface to be re-surfaced disposed downwardly and with the opposi te surface disposed upwardly. An arbour is provided on the second shaft which supports a resilient pad in overlapping relationship with the protective surface of the disc. The resilient pad has a surface which removable-receives an abrasive material, the arbour and abrasive material being selected to extend in overlapping relationship only across th e annular information layer. The mounting means are axially-adjustable to maintain substantially- planar contact between the disc and the abrasive material.