Abrasive tool making process – material – or composition – Impregnating or coating an abrasive tool
Patent
1983-12-05
1984-09-04
Whitehead, Harold D.
Abrasive tool making process, material, or composition
Impregnating or coating an abrasive tool
51277, 51284R, B24B 4106
Patent
active
044688962
ABSTRACT:
A chucking method and apparatus for processing a lens blank in a manner requiring only a single mounting of the blank to an associated lens block. The lens block is mounted to the convex lens blank surface by a hot melt type of adhesive so as to extend outwardly thereof substantially coaxial with the lens blank frame center axis. The lens blank and lens block are releasably mounted in a chuck assembly associated with lens surface generating apparatus such that a desired optical center axis in the lens blank and the tailstock of the generating apparatus are coaxial. The chuck includes means for selectively rotating and/or canting the lens blank relative to the tailstock to accommodate desired axis and prism settings as prescribed for the finished lens. Following generation of the desired optical characteristics in the lens blank, additional operations are performed thereon for producing a finished optical lens while the lens block remains affixed thereto. After these additional operations are completed, the lens block is removed from mounted association with the finished optical lens.
REFERENCES:
patent: 1436626 (1922-11-01), Spaander
patent: 2286319 (1942-06-01), Sunskes
patent: 2573668 (1951-10-01), Long
patent: 2721429 (1955-10-01), Barr
patent: 2879632 (1959-03-01), Allen
patent: 3289355 (1966-12-01), Coburn
patent: 4077722 (1978-03-01), Bicskei
patent: 4277916 (1981-07-01), Buhler
Cole National Corporation
Whitehead Harold D.
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