[N317013], Technical Note, Thomas Alva Edison, April 5th, 1886
https://edisondigital.rutgers.edu/document/N317013
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Title
[N317013], Technical Note, Thomas Alva Edison, April 5th, 1886
Editor's Notes
[paired entry; see N315021] "Carbonize less dense material such as paper, wood (pine willows etc) Licorice mixed with MgO by auto preliminary to get high resistance then if it stands well compound the surface by MgO-- I think with perfect Carbzn the lighter materials will answer fully as well as bamboo & be exceedingly high resistance Try parchmentized paper-- White Holly Lampblack & Licorice & MgO-- Lampblack Tar & MgO-- Licorice & MgO punch out of rolled sheets ot this material Municipal 32s will answer"; p. 15 Mixtures for filiments which are soft can probably be rolled down between tin foil several layers of material & foil one over the other & rolled together thus obtained even Several might be stamped out simultaneously bent in loop shape & Carbzd together The foil melting or could be eat out by acid making it easier to make fine filiments"; p. 17 With Auto Preliminary Soak original filiments with Licorice; prelim & Carbz reg-- Then soak Licorice & prelim & resoak 2 or 3 times, then Carbz regular This has never been fairly tried
Author
Date
1886-04-05
Type
Subject
Folder/Volume ID
N317-F
Microfilm ID
43:9
Document ID
N317013
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University