Precision blocking of lens blank

Details Precision blocking of lens blank Precision blocking of lens blank

1978-10-31

1980-10-14

Smith, Gary L.

Abrasive tool making process, material, or composition

Impregnating or coating an abrasive tool

51277, 33174A, B24B 100

Patent

active

042273498

ABSTRACT:
Method and apparatus for the precision blocking of lens blanks by the adjustment of each such blank until it occupies a prescribed position where an alloy hub or "block" is removably affixed to the blank so that it can be properly gripped for finishing.

REFERENCES:
patent: 2712180 (1955-07-01), Lueck
patent: 3049766 (1962-08-01), Buckminster
patent: 3368285 (1968-02-01), Buckminster
patent: 3451177 (1969-06-01), Buckminster
patent: 3507076 (1970-04-01), Rudd
patent: 3861089 (1975-01-01), England
patent: 4077722 (1978-03-01), Bicskie
patent: 4138085 (1979-02-01), Bicskie

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