Patent ID: 6645043
Filing Date: 2003-11-11
Classification: B24B

Abstract:
An apparatus for grinding and polishing the face surface of a full-lead crystal workpiece, comprising;a) a housing having an entrance end and an exit end; b) a conveyor running lengthwise downline through said housing from the entrance end to the exit end; c) a calibrator proximate the entrance end of said housing; d) a plurality of grinders located downline of said calibrator, said grinders having an abrasive grinding surface within a range of coarseness; e) a plurality of polishers located downlime of said grinders, said polishers having an abrasive polishing surface; f) control means for raising and lowering said calibrator, grinders and polishers relative to said belt conveyor and the unfinished surface of the workpiece supported thereon; wherein said grinders and polishers are constructed and arranged to automatically process full-lead crystal without visible flaws.