[N009048] Technical Note, December 1878

Item

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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

Date

1878-12-00

Decade

1870-1879

Identifier

N009048

Folder Set

N009-F

Microfilm ID

29:966

Publisher

Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University