[D8503ZAB1], Letter from Henry Smith Craven to Thomas Alva Edison, April 4th, 1885
https://edisondigital.rutgers.edu/document/D8503ZAB1
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Metadata
- Title
- [D8503ZAB1], Letter from Henry Smith Craven to Thomas Alva Edison, April 4th, 1885
- Editor's Notes
- letter about working light by for underground surveys TAE marg is formal reply LB020234: Dear Sir= We manufacture one candle Lamps at our factory & I am at the present moment expmtg to get a suitable battery to be carried on the person-- I intended it for coal miners but it will undoubtedly suit your purpose I expect to have it within a month & will let you know when ready [overstruck line] A plumb line of fine platina wire could be rendered visible if you had a Dynamo or electric Light plant at top of shaft & were run in parallel It takes a great deal of power perhaps by using large cord painted with Luminous paint & putting piece of magnesium wire for instance would give light enough the light would last 1/2 to 1 hour & illuminate dark would shine out plain & distinct
- Author
- Craven, Henry Smith
- Recipient
- Edison, Thomas Alva
- Date
- 1885-04-04
- Type
- Letter
- Subject
- Electric light and power
- Folder ID
- D8503-F
- Microfilm ID
- 77:70
- Document ID
- D8503ZAB1
- Publisher
- Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
- Has Version
- Archive.org Viewer, Microfilm Series Reel 77
- License
- CC0 1.0 Universal