[D8032U], Letter from W H Patton to Thomas Alva Edison, July 27th, 1880
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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
Recipient
Date
1880-07-27
Type
Folder/Volume ID
D8032-F
Microfilm ID
54:405
Document ID
D8032U
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University