Education and demonstration – Audio recording and visual means – Visual information in book form
Patent
1982-08-13
1984-01-10
Grieb, William H.
Education and demonstration
Audio recording and visual means
Visual information in book form
281 38, 369273, G09B 506, B42D 100, G11B 2344, G11B 2504
Patent
active
044250983
ABSTRACT:
A sound-illustrated, bound book includes sound record areas in the form of a spiral sound groove each associated with individual pages. Adjustment perforations or embossments or engravements and switch-on safety elements, if provided, for a sound reproducing apparatus attachable in aligned position, are associated with each sound groove. It is suggested to provide the sound grooves with the adjustment perforations and the switch-on safety elements on separate double pages of plastic material, at best being semi-rigid, and bound in the book, inserted into the quaternia thereof, in order to permit more favorable production of the individual book pages and of the sound groove carriers and to prevent any obstruction when the book is read with a sound reproducing apparatus having a revolving pickup placed on the sound groove and to avoid too much bulging of the book, especially toward one side. The sound grooves may be provided at the front and back sides of the sound record pages so as to be disposed directly opposite each other. The adjustment perforations or engravements and embossments as well as the switch-on safety elements may be arranged symmetrically with respect to two orthogonal central axes of the sound grooves such that they will be in common for the oppositely disposed sound grooves. The switch-on safety elements are embodied by an upwardly protruding embossment and a downwardly protruding engravement located close to the embossment.
REFERENCES:
patent: 916036 (1909-03-01), Scholes
patent: 1502312 (1924-07-01), Mayhew
patent: 2309244 (1943-01-01), Fey
patent: 3193295 (1965-07-01), Isemura
patent: 3321208 (1967-05-01), Nicholson
patent: 3702032 (1972-11-01), Doring
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