[D8430F1], Test Report, John F Ott, Edison Lamp Co, January 18th, 1884
https://edisondigital.rutgers.edu/document/D8430F1
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- Title
- [D8430F1], Test Report, John F Ott, Edison Lamp Co, January 18th, 1884
- Editor's Notes
- Exhausted 6 lamps with zinc on cent pole and found it would not cary until we obatined quite a good vacuum, then the carrying went on quite fast, so much so that I had to brake the current and seal off in order to get a test. This must droped[?] the vacuum somewhat, but we burnt them at about 6 or 8 candle power. We connected them up after the following manner [drawing follows] This lamp was very slightly coated with zinc it gave the following deflection [results follow] This lamp became quite thickly coated [more results] This lamp was very thickly coated when started and after burning 3 hours it began to peal off in line with carbon [results] cut out all the resistance and the candle power went up to about 80 and it lasted 20 minutes then arced [more results then more discussion of experiment with lamp] Connected a lamp with aluminum in center. This I could not melt on pump and showed no blue after the air was all worked out [results follow] Connected 3 lamp with iron in center [results of each lamp follow]
- Date
- 1884-01-18
- Type
- Test Report
- Folder ID
- D8430-F
- Microfilm ID
- 73:504
- Document ID
- D8430F1
- Publisher
- Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
- License
- CC0 1.0 Universal
- Has Version
- Archive.org Viewer, Microfilm Series Reel 73