[NB070015], Technical Note, Jonas Walter Aylsworth, Thomas Alva Edison, May 30th, 1889
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Title
[NB070015], Technical Note, Jonas Walter Aylsworth, Thomas Alva Edison, May 30th, 1889
Editor's Notes
First class cylinder-- Not 1/5 scratch of Reg--make splendid musical cyldr-- Very hard. Will probably require Saphire Cutters. Can't be filtered well-- Moulds nicely-- Only keenest edges on Recorder can be used on account hardness-- can track deep-- works well as a thick or thin veneer Low melting point, pours low temperature. The cylinder I tried was filtered-- 500 grammes Purified Cake Beeswax 400 grammes Carnuba 30 ditto dry salt, acetate Alumina Cook well to get of acetic color light brick red-- There is a great lot of precipitated alumina left, & this causes filter to work bad
Date
1889-05-30
Type
Folder/Volume ID
NB070-F
Microfilm ID
103:2
Document ID
NB070015
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University