Record engraving apparatus

Details Record engraving apparatus Record engraving apparatus

1985-01-11

1986-07-01

Briggs, William R.

Gear cutting, milling, or planing

Planing

With regulation of operation by templet, card, or other...

82 11, 369 84, B23D 502

Patent

active

045977003

ABSTRACT:
A record engraving apparatus having a table with a vacuum source for retaining thereon a master lacquer with portions thereon having pre-recorded disc-shaped record portions. The rotatable table is precisely positionable in all directions of the plane of the table as well as in orthogonal directions, and includes provision for mounting the master lacquer with the center thereof in one of at least two locations depending on the center of the record portions relative to the master lacquer. A vertically adjustable arm is provided with a turret head having thereon a plurality of heated sapphire cutters of different sizes, each of which may be indexed into position. The arm is adjustable in a direction orthogonal to the plane of the table to provide variations in depths of cuts.

REFERENCES:
patent: 1649847 (1927-11-01), Nightinghall
patent: 2595795 (1952-05-01), Kovach
patent: 2940368 (1960-06-01), Walter et al.
patent: 2948783 (1960-08-01), Scully
patent: 3136936 (1964-06-01), Eisengrein
patent: 3186029 (1965-06-01), Joseph
patent: 3420967 (1963-07-01), Goldmark
patent: 3528665 (1974-10-01), Redlich
patent: 3837656 (1974-09-01), Pradervand
patent: 3842194 (1974-10-01), Clemens
patent: 3909517 (1975-09-01), Clemens
patent: 4248438 (1981-02-01), Knothe et al.

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