N-14-04-30 (1914)

Item

Title

N-14-04-30 (1914)

Description

This notebook was used by Edison during the period April-July 1914. It is the first of a four-book series continued by N-14-08-07. The entries pertain primarily to the transfer process involved in disc record manufacture and to the production of record blanks. The first part of the book contains notes on the problem of wrinkles on transfer plates and possible solutions to this problem. The entries describe experimental transfers made according to different production schedules, with various varnish compounds, or with differently prepared transfer plates. Several notes indicate that many test results were invalidated because a mute was mistakenly left in the phonograph used to test records for quiet surfaces. One entry toward the beginning of the book relates to the solution used in the electroplating processes involved in disc record manufacture. Entries in the middle and end of the book describe the production of experimental blanks and transfers and experiments to improve the varnish. The last entry establishes a new \"standard varnish.\"" Employees Jonas Walter Aylsworth, Charles Dally, William Walter Dinwiddie, Archie D. Hoffman, Charles W. Luhr, and Sherwood T. (Sam) Moore assisted Edison with this work. The front cover is labeled \""No 1 Disc.\"" The pages are unnumbered. Approximately 135 pages have been used."

Identifier

NA248-N

Has Format

https://iiif.archive.org/iiif/taepnotebook-NA248/manifest.json

Is Part Of

Notebook Series -- Notebooks by Edison

Has Version

Item Set NA248-F

Type

Notebook

Rights

Courtesy of Thomas Edison National Historical Park.

License

CC0 1.0 Universal