[LB007399], Letter from Richard Nott Dyer to Thomas Alva Edison, June 3rd, 1882


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[LB007399], Letter from Richard Nott Dyer to Thomas Alva Edison, June 3rd, 1882

Editor's Notes

I have examined Major William's letter of the 1st inst. to major Eaton referring to your arc light [cases]##On one of my first talks with you after your return from Florida, I called your attention to the fact that [cases] 368 and 370 had been rejected upon the ground that they did not [c-- ] operative mechanisms.## You explained to me then that the lighting [magnet] in each case ([10] in [30] and [1--] in 370) while having [--] the same resistance as the [app--] magnet, was intended to have a grater weight of copper in its coils so as to overcome the opposing magnet when the carbon electrodes were touching and establish the normal arc.## This additional explanation which did not appear in the original specifications, made the operation of the lamps clear.## At that time - nearly two months ago - I gave this explanation to Mr Sealy who had the arc light [orders] in hand prepring replies to the [Cabinet] [exhibit] I think he took a note of the point, but whether he did or not he will probably remember the fact that the explanation was given.




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