Part Of: Notebook Series -- Notebooks by Edison

[NA237-F] N-13-08-05 (1913)

This notebook was used by Edison during the period August-October 1913. The entries pertain to the transfer and molding processes involved in disc record manufacture. At the beginning of the book are notes on experiments with varnishes and other resinous compounds for coating record blanks and receiving impressions. The middle of the book contains notes on experiments involving the preparation, molding, and composition of record blanks. The last half of the book contains a summary of "Results of many Expts last week" involving experimental transfers made with various record blanks. Notes on these experiments are continued in N-13-10-31. Edison's notes indicate that employees Peter C. Christensen, Charles Dally, Archie D. Hoffman, and Frederick P. Ott assisted him in some instances. Inserted into the book are two loose items, including a memorandum from Ludwig (Louis) Ott to Edison regarding a supply of a phosphorous compound. The front cover is labeled "Disc Records 1913." The pages are unnumbered. Approximately 110 pages have been used.

Courtesy of Thomas Edison National Historical Park.

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