Record engraving apparatus
AssigneeMattel, Inc.
InventorsJohn C. Woolington, James A. Chenoweth
Life of this patent
Estimating the term…
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.
Claims20
In an engraving apparatus for forming grooves of predetermined length and configuration at preselected positions relative to previously recorded record portions of a master record disc or lacquer, the apparatus having a base, a first table secured thereto for movement in a first direction relative to said base, a second table secured to said first table for movement in an orthogonal direction relative to said first table, an angularly positionable third table coupled to said second table for movement therewith, and processor means for precisely positioning the first and second tables relative to the base and for precisely angularly positioning said third table relative to said second table, the improvement comprising:
- arm means coupled to said base;
- cutting means on said arm means in proximate relation to said third table and positionable in a direction generally perpendicular to the plane of said third table;
- means on said third table for enabling retention thereon of a generally disc-shaped master lacquer mean and plural positioning mean for positioning the center of said master lacquer means at one of at least two locations on said third table for enabling positioning of the centers of said record portions in generally proximate relation to said cutting means;
- and
- means responsive to said processor means for enabling angular positioning of said third table and movement of said cutting means in a direction generally perpendicular to the plane of said master lacquer means for enabling engraving of grooves of predetermined depth at preselected locations relative to said prerecorded record portions on said master lacquer means in accordance with the position of said cutting means, the angular position of said third table and in accordance with the positioning of said first and second tables.
In an engraving apparatus for forming groves of predetermined length and configuration at preselected positions relative to previously recorded record portions of a master record disc or lacquer, the apparatus having a base, a first table secured thereto for movement in a first direction relative to said base, a second table secured to said first table for movement in an orthogonal direction relative to said first table, an angularly positionable third table coupled to said second table for movement therewith, and processor means for precisely positioning the first and second tables relative to the base, the improvement comprising:
- arm means coupled to said base, said third table being formed of a first disc-shaped member having channel means formed in the surface thereof, and a second generally identically dimensioned disc-shaped member overlying said first disc-shaped member, said second disc-shaped member having aperture means extending therethrough with said apertures in registration with said channel menas for enabling application of a vacuum through said channel means and said aperture means for retaining master lacquer means on said third table;
- cutting means on said arm means in proximate relation to said third table and positionable in a direction generally perpendicular to the plane of said third table;
- means on said third table for enabling retention thereon of said master lacquer means and plural positioning means for positioning the center of said master lacquer means at one of at least two locations on said third table for enabling positioning of the centers of said record portions in generally proximate relation to said cutting means;
- and
- means responsive to said processor means for enabling angular positioning of said third table and movement of said cutting means in a direction generally perpendicular to the plane of said master lacquer means for enabling engraving of grooves of predetermined depth at preselected locations relative to said prerecorded record portions on said master lacquer means in accordance with the position of said cutting means, the angular position of said third table and in accordance with the positioning of said first and second tables.
Dependencies are inferred from the claim text.