Method and apparatus for making a pattern for a lens opening in an eyeglass frame
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United States of America Patent
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-
Dec 8, 1987
Grant Date -
N/A
app pub date -
Dec 8, 1987
filing date -
Aug 4, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method and apparatus for making a pattern from a blank in accordance with a set of coordinates defining a plurality of data points and collectively characterizing the size and shape of a lens opening in an eyeglass frame is presented. A controller includes an instruction set to control the operation of a router coupled to a carraige arranged for rectilinear movement toward and away from a work station and relative to the rotation of a blank fixtured at the work station whereby a pattern is cut with the desired size and shape. The apparatus further includes a sensor and light source in the feeding and staging area of the apparatus to advance a blank to a fixturing spindle located at the work station and to determine the nasal side orientation of the blank at the work station.
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