[N009048] Technical Note, December 1878
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Title
[N009048] Technical Note, December 1878
Editor's Notes
Upton notes, calcs, drawings re "If a battery works against a Gramme Question "Gramme machine mnoves about the same How much power hand break" [is this among questions given Upton when he first comes to work--see that notebook]; later "Tried magnet tried commutators Six lamps all red heat from the [?] Six lamps 1/4 in 1/2 HP 3000[degree sign] F" and more calcs may be from Dec or early Jan; Jan 14 drawings by Batch follow Upton material frame 998
Supplied year and month
Author
Date
1878-12-00
Type
Subject
Folder/Volume ID
N009-F
Microfilm ID
29:966
Document ID
N009048
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University