[NS87AAF], Technical Note, Thomas Alva Edison, May 16th, 1887


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[NS87AAF], Technical Note, Thomas Alva Edison, May 16th, 1887

Editor's Notes

"John Ott-- Municipal About every lamp in 20 doesn’t arc when the carbon breaks-- in this case the circuit would remain open-- The right our Co to use of the paper cut out is doubtful therefore I want to get a cut out (1000 Volts, with plates one millimeter apart & one square decimetre in area each produces an electrical attraction equal to 5.7 grames weight) 1 decimeter is I think about 125 square inches or plate 11 inches square or 45 milligrammes to square inch-- now if you can put one square insh of surface opposing another of equal area both on delicate springs. The current will cause them to draw together just the same as if you laid 45 milligrammes on one of the plates. I think this is plenty-- I propose to make an inside part thus" [drawings]




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