Apparatus for edging ophthalmic lenses

Details Apparatus for edging ophthalmic lenses Apparatus for edging ophthalmic lenses

1978-01-24

1979-12-25

Whitehead, Harold D.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

51284E, B24B 914, B24B 100

Patent

active

041798511

ABSTRACT:
An apparatus for simultaneously grinding a peripheral shape and edge surface upon a pair of ophthalmic lenses with a single pattern. The apparatus includes an abrading wheel and first and second floating heads for rotatably supporting a pair of ophthalmic lenses on either side of the abrading wheel. The lenses are biased toward the wheel and are incrementally rotated about mutually parallel axes which lie parallel with a central longitudinal axis of the abrading wheel. A control system is operably connected to each of the lenses and serves to control incremental rotation of each of the lenses as well as lateral engagement of the lenses with the central abrading wheel.

REFERENCES:
patent: 1254253 (1918-01-01), Marchant
patent: 1502990 (1924-07-01), Kiefer
patent: 2209605 (1940-07-01), Maynard
patent: 2963831 (1960-12-01), Voelz
patent: 3158967 (1964-12-01), Reaser
patent: 3461619 (1969-08-01), Hurlbut et al.
patent: 3498005 (1970-03-01), Brandt
patent: 3894361 (1975-07-01), Georgiadis et al.

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