Apparatus for grinding a rabbet in an edge of a glass sheet
First Claim
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1. An apparatus for grinding a recess in marginal edge portions of a glass sheet, comprising:
- means for supporting the sheet;
a flat disc;
a circular band of grinding material on a surface of said disc;
shaft means mounting said disc such that the axial center of said shaft means and plane of said disc subtend an oblique angle;
means acting on said shaft means for rotating said disc through a circular oscillatory path to move said band of grinding material toward, through and away from a plane generally parallel to said supporting means; and
means for decreasing the distance between said band of grinding material and said supporting means as said disc is rotated.
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Abstract
A wheel having a plurality of spaced grinding pads is rotated about a vertical axis and displaced toward a glass sheet rotating in a horizontal plane to grind a rabbet in the edge of the glass sheet. The spaced grinding pads reduce frictional heat and provide periodic spacings between the glass sheet and wheel to pass a coolant therebetween to eliminate thermal damage to the glass edge.
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4 Claims
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1. An apparatus for grinding a recess in marginal edge portions of a glass sheet, comprising:
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means for supporting the sheet; a flat disc; a circular band of grinding material on a surface of said disc; shaft means mounting said disc such that the axial center of said shaft means and plane of said disc subtend an oblique angle; means acting on said shaft means for rotating said disc through a circular oscillatory path to move said band of grinding material toward, through and away from a plane generally parallel to said supporting means; and means for decreasing the distance between said band of grinding material and said supporting means as said disc is rotated. - View Dependent Claims (2, 3, 4)
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Specification