[D8333A], Letter from Thomas Alva Edison to Francis Robbins Upton, January 5th, 1883

https://edisondigital.rutgers.edu/document/D8333A

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Title

[D8333A], Letter from Thomas Alva Edison to Francis Robbins Upton, January 5th, 1883

Editor's Notes

"Please hae Lawson put 1/2 doz Carbon forms with Bamboo in ready for Carbonization in dish & cover with Boiled Linseed Oil & then heat oil very gradually up to say 500 deg fahr--when most of the carbonization will take place; then you can either wash the forms in turpentine after taking out of dish & then put in regular run & Run up to high heat as regular or you can wash with turpentine & take out loop & put in new forms -- The theory is that the heat is applied perfectly even & thus you prevent internal stress, & also prevent oxidation at the point where the carbon is the most sensitive Let me know how you come out with it" recommend select dh 20dec02

Mentioned

Date

1883-01-05

Type

Folder/Volume ID

D8333-F

Microfilm ID

67:300

Document ID

D8333A

Publisher

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