[D8142ZAG], Memorandum, Thomas Alva Edison, April 19th, 1881
https://edisondigital.rutgers.edu/document/D8142ZAG
PDF: Archive.org
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Metadata
- Title
- [D8142ZAG], Memorandum, Thomas Alva Edison, April 19th, 1881
- Editor's Notes
- TAE autograph memorandum for patent: "Draw up patent on sheets of plumbago, graphitoidal silicon, boron & Zirconium moulded by pressure preferrable in a hydraulic press.......Then placing a great number of these sheets in a closed flask and brought up to incandescenc in furnace & then the vapor of a hydrocarbon passed over the sheets so as to deposit carbon upon them. Afterwards the sheets are placed under a punch & on a die......" Can do it without depositing carbon but "I prefer to deposit because there is less breakage in punching and placing in the lamp. R increased by charcoal. Can use any kind of carbon but more difficult than graphitoidal carbon."
- Author
- Edison, Thomas Alva
- Date
- 1881-04-19
- Type
- Memorandum
- Folder ID
- D8142-F
- Microfilm ID
- 59:313
- Document ID
- D8142ZAG
- Publisher
- Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
- Has Version
- Archive.org Viewer, Microfilm Series Reel 59
- Item sets
- [D8142-F] (D-81-42) Patents