[D8518K], Letter from Boulton Carbon Co to Thomas Alva Edison, June 18th, 1885

Item

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Abstract

[Letterhead of The Boulton Carbon Co.] We made carbons as you suggested by the use of licorice as a binder with powdered petroleum coke. We had trouble getting the mixture to adhere after being put under a pressure of 350 tons. After carbonizing, we found that the carbons made with this combination burned in the lamps poorly, "blazing, sputtering and giving off sparks to an unusual extent." Do you have any further suggestions? TAE Marg: "You have evidently not operated with it in the proper manner, as one of my assistants made carbons in a hand press, which burned against a regular carbon of equal size lasted 1/3 longer--you should experiment more."

Date

1885-06-18

Decade

1880-1889

Type

Identifier

D8518K

Folder Set

D8518

Title

[D8518K], Letter from Boulton Carbon Co to Thomas Alva Edison, June 18th, 1885

Microfilm ID

77:504

Publisher

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