Method and apparatus for engraving characters

Details Method and apparatus for engraving characters Method and apparatus for engraving characters

1974-12-10

1976-03-30

Meister, J. M.

90 13R, B23C 116

Patent

active

RE0287474

ABSTRACT:
A method and apparatus for engraving characters by the use of numerically controlled machine tools. The characters are engraved by moving a first machine tool about the outline of the desired character. Where the character has inside corners, a second numerically controlled machine tool is moved about the outline at the inside corner at a plurality of depths to reduce the radius of the curvature at the inside corner.

REFERENCES:
patent: 2010905 (1935-08-01), Tretbar, Jr.
patent: 2342129 (1944-02-01), Elbertz
patent: 2710563 (1955-06-01), Messmer
patent: 2812694 (1957-11-01), Reichard et al.
patent: 2953949 (1960-09-01), Witzig et al.
patent: 3117495 (1964-01-01), Zwick
patent: 3290994 (1966-12-01), Garrison et al.

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