[NB002004], Technical Note, Arthur Coyle Payne, May 12th, 1887
https://edisondigital.rutgers.edu/document/NB002004
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Metadata
- Title
- [NB002004], Technical Note, Arthur Coyle Payne, May 12th, 1887
- Editor's Notes
- Payne No. 2. Took 10 forms each containing 3 reg. 16. C.P. preliminary fibres; placed them in plumbago crucible & filled in with small pieces of tin, so that when tin was melted the molten metal would stand about 2 in. over forms. Forms fixed so they could not float & fibres wre arranged so they could contract in reg. way. Run through final carbonization in Lawson's furnace. After taken from furnace, allowed to coold down to dull red, & just before reaching solidifying point metal poured out. Crucible immediately filled with powdered plumbago to keep out oxygen & also to prevent cooling off so rapidly. Left until thoroughly cooled. Found 7 broken; broke 3 in detaching the small pieces of tin that adhered to carbons, having 20 carbons in good condition. Carbons when put in forms were quite crooked, but during process seem to have gotten straighter. Came out dark & smooth-- not very shiny. The forms were cut out at each end and aboutan inch on each side to allow the metal free access. Delivered 20 carbons to Edison Marked Payne No. 2."
- Author
- Payne, Arthur Coyle
- Mentioned
- Edison, Thomas Alva
- Date
- 1887-05-12
- Type
- Technical Note
- Subject
- Incandescent lamp
- Folder ID
- NB002-F
- Microfilm ID
- 101:542
- Document ID
- NB002004
- Publisher
- Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
- Has Version
- Archive.org Viewer, Microfilm Series Reel 101
- Item sets
- [NB002-F] N-87-05-09 (1887)