Edging apparatus for ophthalmic lens

Details Edging apparatus for ophthalmic lens Edging apparatus for ophthalmic lens

1975-07-15

1977-06-07

Smith, Al Lawrence

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

B24B 1300

Patent

active

040274349

ABSTRACT:
A follower travels the inside contour of a rotating eyeglass frame and the movement caused by changing radii is detected by a linear variable differential transformer and converted into electrical signals which actuate an electrically operated valve. The valve, in turn, controls the movement of a hydraulic cylinder which dictates the positioning of a lens blank to be edged relative to the grinding periphery of an abrading wheel taking into account the position of the lens edge on the abrading surface.

REFERENCES:
patent: 2597686 (1952-05-01), Turner et al.
patent: 3015768 (1962-01-01), Hornfeck
patent: 3170374 (1965-02-01), Clar
patent: 3555739 (1971-01-01), Novak
patent: 3771265 (1973-11-01), Bright
patent: 3786600 (1974-01-01), Bloxsom
patent: 3899851 (1975-08-01), Asselin

Affiliated with

Also associated with

Rating

Edging apparatus for ophthalmic lens does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Edging apparatus for ophthalmic lens, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Edging apparatus for ophthalmic lens will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1229571