Control means for a lens-edge grinding machine

Details Control means for a lens-edge grinding machine Control means for a lens-edge grinding machine

1975-12-19

1979-06-12

Godici, Nicholas P.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

B24B 914

Patent

active

041576365

ABSTRACT:
Control means for a lens edge grinding machine having its rotatable lens carrier in an assembly rockable about an axis to impart contour to a lens and axially movable along such axis to cater for curvature of the lens being ground, which control means comprises a surface angularly adjustable between a minimum for a flat front faced lens to a maximum for a curved front lens of the power of some eight to ten diopters and linearly adjustable for size and/or thickness of the lens such that an element, movable with the rockable lens carrier assembly biased by a force tending to axially displace the same, bears on such surface to control axial displacement during grinding a lens rotated in the grinding machine as a function of the rocking of said assembly.

REFERENCES:
patent: 1619358 (1927-03-01), Maynard
patent: 1651532 (1927-12-01), Maynard
patent: 2584483 (1952-02-01), McDonald
patent: 2617236 (1952-11-01), Allen
patent: 3332172 (1967-07-01), Stern
patent: 3513598 (1970-05-01), Asselin

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