[D8835AFA], Letter from Samuel Insull to Thomas Alva Edison, December 19th, 1888
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Title
[D8835AFA], Letter from Samuel Insull to Thomas Alva Edison, December 19th, 1888
Editor's Notes
[insulated wire market] "I enclose you herewith a sample of material, which we have received from the Laboratory. When the material came from the Laboratory they informed us that the machine had broken down and they could not therefore masticate it properly. I enclose you a sample of what they sent us, this sample having passed through our Squirter for the purpose of mastication after we received it from the Laboratory. This sample you will find contains a great deal of rubber, which as you know cannot be mixed mechanically with any other substance. Now if we can get what you stated there was no trouble to provide us with when Mr. Kruesi and myself saw you at the Laboratory, we can put a fire-proof and water-proof wire on the market immediately. I refer to the semi-fluid compound, which upon heating will become sufficiently fluid to penetrate the cotton. Or, if this is not practicable, if you can name a solvent that will liquefy the compound sufficiently to penetrate the cotton, we can go ahead and use the 'coke-like' substance that we have received from you recently. Mr. Kruesi has tried the solvent Di-sulphate of Carbon, and it worked admirably. Is there any objection to our using this as a solvent right along? If so we can take the wire, put a thin coating of rubber on it, then cotton cover it, then pass it through the liquid compound, and if we require white wire, braid it with glazed cotton, or if fancy colors are desirable we can cover it with the same class of cotton as we are using on flexible cord."
Author
Recipient
Mentioned
Date
1888-12-19
Type
Subject
Folder/Volume ID
D8835-F
Microfilm ID
123:595
Document ID
D8835AFA
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University