Automatic edge beveller for removing the sharp peripheral edges

Details Automatic edge beveller for removing the sharp peripheral edges Automatic edge beveller for removing the sharp peripheral edges

1981-01-30

1983-02-15

Whitehead, Harold D.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

B24B 514

Patent

active

043732984

ABSTRACT:
Disclosed is an automatic edge beveller for removing the sharp peripheral edges of ophthalmic lenses. It comprises (a) first apparatus for positioning an ophthalmic lens perpendicular to a first axis which extends through the lens, (b) second apparatus for rotating the lens about the first axis, (c) third apparatus for translating the ophthalmic lens parallel to the first axis, (d) a grinding wheel, and (e) fourth apparatus for rotating the grinding wheel about a second axis which intersects the first axis at an acute angle.

REFERENCES:
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patent: 1713622 (1929-05-01), Rakel
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patent: 3332172 (1967-07-01), Stern
patent: 3353303 (1967-11-01), Stern
patent: 3405482 (1968-10-01), Brandt
patent: 3449866 (1969-06-01), Suddarth
patent: 3520091 (1970-07-01), Raphael
patent: 3886693 (1975-06-01), Tajnafoi et al.

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