Abstract: An apparatus for grinding and polishing without visible flaws a variety of different size and shape full-lead crystal workpieces. A conveyor supports the workpieces and runs through the apparatus housing. A workpiece calibrator is located proximate the entrance end of the housing. A plurality of grinders having an abrasive grinding surface within a range of coarseness are located downline of the calibrator. A plurality of polishers are located downline of the grinders. Control means raises and lowers the calibrator, grinders and polishers relative to the belt conveyor and the unfinished surface of the workpiece supported thereon. A method of automatically making a finished full-lead crystal ornament using an automated machine having a housing, conveyor, a plurality of motor-driven grinding heads, and a plurality of motor-driven polishing heads.

Abstract: An apparatus for grinding and polishing without visible flaws a variety of different size and shape full-lead crystal workpieces. A conveyor supports the workpieces and runs through the apparatus housing. A workpiece calibrator is located proximate the entrance end of the housing. A plurality of grinders having an abrasive grinding surface within a range of coarseness are located downline of the calibrator. A plurality of polishers are located downline of the grinders. Control means raises and lowers the calibrator, grinders and polishers relative to the belt conveyor and the unfinished surface of the workpiece supported thereon.A method of automatically making a finished full-lead crystal ornament using an automated machine having a housing, conveyor, a plurality of motor-driven grinding heads, and a plurality of motor-driven polishing heads.