[D8833AAP1], Letter from Francis Robbins Upton to Thomas Alva Edison, February 23rd, 1888

https://edisondigital.rutgers.edu/document/D8833AAP1

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Title

[D8833AAP1], Letter from Francis Robbins Upton to Thomas Alva Edison, February 23rd, 1888

Editor's Notes

"We are desirous to making a small lamp for medical purposes which shall be the best made in the world. ### For this type of lamp we need a very fine fibre. We wish you would send us some fibre that you think is right. We now use a 6 x 6 bamboo, but feel that if we can get a round fibre smaller than this, we can bring up the resistance of the lamp, and make the clamping still easier than now." Yours truly, The Edison Lamp Co. by Francis R. Upton [Marginalia: "Write him that I can give him what is required. ### Tell John Ott that I want to make saphire dies to drawn down to .005 and to see me about it. Show me this letter every day"]

Mentioned

Date

1888-02-23

Decade

1880-1889

Type

Folder/Volume ID

D8833-F

Microfilm ID

123:341

Document ID

D8833AAP1

Publisher

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