[D8032U], Letter from W H Patton to Thomas Alva Edison, July 27th, 1880
https://edisondigital.rutgers.edu/document/D8032U
PDF: Archive.org
CSV: Metadata
Metadata
- Title
- [D8032U], Letter from W H Patton to Thomas Alva Edison, July 27th, 1880
- Editor's Notes
- Yours of 21 rcd re: applying elec power in shafts below 3000 ft. Would be in following conditions: 1) 100-130 degF, moist air--affect insulation? Marg: "no we should take precautions;" 2)pumps only 6-12 strokes per min; how reduce from engine's 600rpm? 3) divide current between pumping stations 2000' apart?; 4) variable loads; 5) underground engines sometimes submerged.
- Author
- Patton, W H
- Recipient
- Edison, Thomas Alva
- Date
- 1880-07-27
- Type
- Letter
- Folder ID
- D8032-F
- Microfilm ID
- 54:405
- Document ID
- D8032U
- Publisher
- Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
- Has Version
- Archive.org Viewer, Microfilm Series Reel 54
- License
- CC0 1.0 Universal
- Item sets
- [D8032-F] (D-80-32) Mining -- General