[D8930AAS], Letter from Samuel Insull to Thomas Alva Edison, March 18th, 1889

https://edisondigital.rutgers.edu/document/D8930AAS

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Title

[D8930AAS], Letter from Samuel Insull to Thomas Alva Edison, March 18th, 1889

Editor's Notes

We are in receipt of your of your esteemed favor of the 13th. Inst., and have tried the experiment as instructed with one of the compounds sent us, but find it does not give any satisfaction whatsoever, inasmuch as it will attack the thread, or other insulating material when exposed to a moderate amount of heat, such as wires would be subjected to when used for general housework, as on ceiling, etc. We would suggest that you keep this wire at a temperature of about 150 Fahr. for about twenty-four hours, when we think you will find that the cotton is entirely destroyed. ### I wished the experiment tried only as a method of applying the insulating compound. Is the method of squirting compound our wire and then rewinding and soaking in melted compounded a practible our it was not expected formally proved to be destructive of the cottem would cease to [xxxx?] because it was applied in a dfferent manner. I suggest the method only is a way of applying a compound that cannot be made suffientiently fluid for any other method of application.

Date

1889-03-18

Type

Folder/Volume ID

D8930-F

Microfilm ID

125:1009

Document ID

D8930AAS

Publisher

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