[N114133], Technical Note, Francis Robbins Upton, August 30th, 1880
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Title
[N114133], Technical Note, Francis Robbins Upton, August 30th, 1880
Editor's Notes
"Motors" sketches unclear. FR 67 "Estimate of Motors. Mr Edison makes condition that at 1000 r.p.m. the motor shall give 96 volts. Small wrought iron motor gives 65 volts at 1640 revo. 6 times to division." {HUH? Specifing the potential drop a motor will present in a circuit?] fr 69 cost annually of copper (for meters) deposited at rate of 1 ct per day; magnet windings, webers, etc. probably for dynamos.
Author
Date
1880-08-30
Type
Subject
Folder/Volume ID
N114-F
Microfilm ID
37:63
Document ID
N114133
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University