Apparatus for embossing information on a disc

Details Apparatus for embossing information on a disc Apparatus for embossing information on a disc

1974-10-24

1976-03-23

Konick, Bernard

Telegraphy

Systems

Simplex-reversing periodic

17910041P, 310 82, 310 83, H04R 1706, H01L 2314

Patent

active

039461491

ABSTRACT:
An apparatus for receiving electronic signals and embossing modulated grooves on a carrier medium as a function of the received signals, includes a support for supporting an embossing assembly and a carrier medium in spaced relationship therewith, as well as apparatus for causing relative motion between the carrier medium and the embossing assembly. In accordance with the invention there is provided a wafer of piezoelectric material affixed to the mount, the wafer having electrodes for application of the electronic signals. Further provided is a horn-shaped stylus member having a relatively blunt end affixed to one side of the wafer and tapering to a relatively pointy stylus end, the stylus end being positionable in contact with the medium. The horn-shaped member serves to match the mechanical impedence as between the wafer and the carrier. A dummy horn on the other side of the wafer adds a vibration reducing load to the structure.

REFERENCES:
patent: 3824352 (1974-07-01), Adler et al.
patent: 3829605 (1974-08-01), Dickopp
patent: 3865997 (1975-02-01), Halter

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