Image Number 5 for United States Patent #4635403.
An edge rounding machine for performing edge rounding of an outer edge portion of a machining face of a workpiece such as a floppy disk head, etc., including a cylindrical rotary member having, at its outer periphery, cutting edges, a holder for supporting the workpiece such that the machining face of the workpiece is brought into contact, at the outer edge portion, with a grinding face of the cylindrical rotary member at an angle, a rotary device for rotating the workpiece about its rotary centerline perpendicular to the machining face, a pivotal device for pivoting the workpiece, a support member for retractably guiding the holder along the rotary centerline of the workpiece, and an urging device for urging the workpiece towards the grinding face.
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