Abrasive tool making process – material – or composition – Impregnating or coating an abrasive tool
Patent
1986-03-10
1988-01-26
Olszewski, Robert P.
Abrasive tool making process, material, or composition
Impregnating or coating an abrasive tool
51105LG, 51284E, 51DIG6, B24D 718
Patent
active
047209429
ABSTRACT:
An apparatus that abrades the edges of contact lenses. The device has a cone-shaped body portion which has an axis of rotation that coincides with the axis of symmetry of a cone. The body portion is fixedly secured to a spindle member that is engaged by a machine and rotated at high speeds. Annular grooves of differing widths and with differing radii of curvature are formed in the body portion; a polishing compound is deposited into the bottom of a groove to be used and a lens edge is introduced into the groove while the spindle and hence the body portion of the device are rotating. The angle of taper of a particular device corresponds to the dioptric power of the lens to be abraded by it. Accordingly, a cone-shaped member intended to abrade the edges of a lens of high dioptric power will have a higher degree of taper than another device intended to abrade the edges of a lens of low dioptric power.
REFERENCES:
patent: Re19799 (1935-12-01), Elliot
patent: 997764 (1911-07-01), Eggers
patent: 2203788 (1940-06-01), Jenks
patent: 2324377 (1943-07-01), Fischer
patent: 3143829 (1964-08-01), Brauchle
patent: 3722143 (1973-03-01), Cottom
patent: 3835590 (1974-09-01), Hoffman
patent: 3882641 (1975-05-01), Montgomery et al.
Olszewski Robert P.
Smith Ronald E.
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