[D8320ZAI], Letter from James Swinburne to Thomas Alva Edison, August 21st, 1883
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Title
[D8320ZAI], Letter from James Swinburne to Thomas Alva Edison, August 21st, 1883
Editor's Notes
"some eighteen months ago I invented the system of double winding of dynamos, which gives uniform EMF with varying resistance. I thought it was not patentable" but Compton and Menges have taken them out , "I beg you will make make an offer for the assingment of my patent to you" # asks if TAE needs his expertise in lamp manufacture on a temporary basis "a short time will most likely be suitable, as you may not care to let me into secrets of your own manufacture" could make carbon from thread "which w'd be much more easily dealt with than bamboo slips", and could be used in England; he is no longer bound to American Swan Co, now combined with TAE # TAE marg: "we have made thread lamps but prefer bamboo. The double wound dynamo was used by me 2 1/2 years ago my patent is about year old now. We don’t use it as it is bad when speeds are irregular and owing to low internal resistance in ----- the drop of EMF is not great"
Author
Recipient
Date
1883-08-21
Type
Folder/Volume ID
D8320-F
Microfilm ID
66:93
Document ID
D8320ZAI
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University