Pattern cutter
AssigneePPG Industries, Inc.
InventorJames E. Sherby
Life of this patent
Estimating the term…
Abstract
Reverse contour changes, e.g., changes from a convex peripheral portion to concave peripheral portion are scored in a glass sheet by moving the glass sheet along an X-Y axes while pivoting a scoring wheel housing about an axis transverse to the first and second axes so as to positively rotate the housing in response to contour changes. Further, a pattern cutter includes a sheet support which is mounted for movement along X and Y axes and about a pivoting Z axis relative to a stationary scoring wheel so as to positively control the scoring of the glass sheet during changes from convex portions to concave portions.
Claims12
An apparatus for generating a pattern in a work piece, comprising:
- (a) means for supporting said work piece;
- (b) disc marking means for marking said work piece;
- (c) three-dimensional pattern defining means having peripheral edge portions corresponding to the edge configuration of the pattern to be generated in said workpiece;
- (d) means for providing relative movement between said marking means and said supporting means along a first reciprocating path and a second reciprocating path transverse to said first path;
- and
- (e) means responsive to said peripheral edge portions of said pattern defining means and acting on said marking means and said providing relative movement means including means to rotate said marking means about an axis transverse to said first and said second paths and means to move said providing relative movement means along said first and said second paths to generate said pattern in said workpiece to be supported on said supporting means.
Dependencies are inferred from the claim text.