Title: Apparatus for edging ophthalmic lenses

Abstract: An apparatus for simultaneously grinding a peripheral shape and edge surface upon a pair of ophthalmic lenses including 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. An electronic 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.

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Inventors: Haddock, Fred (Muskogee, OK, US)

Application Number: 906883
Filing Date: 1978-05-17
Publication_date: 1980-05-20
Assignee: Coburn Optical Industries, Inc. (Muskogee, OK)
Primary Class(es): 451/227 451/5, 451/240, 451/256
Other Classes:
US Patent Ref:

1171027	Feb, 1916	Cossman	51/101.
1502990	Jul, 1924	Kiefer	51/101.
3894361	Jul, 1975	Georgiadis et al.	51/101.
3913274	Oct, 1975	Raiford et al.	51/165.
4005552	Feb, 1977	Hoglund et al.	51/DIG.
4027245	May, 1977	Bourrat et al.	51/165.

Other Refs: 557278

Nov, 1943	GB

Primary Examiner: Whitehead, Harold D.
Assistant Examiner: Adolphson, K. Bradford
Attorney: Byrne; John J., Dyson; Edward E.