[D8818ASV], Letter from Thomas Alva Edison to Crane Iron Co, September 7th, 1888
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Title
[D8818ASV], Letter from Thomas Alva Edison to Crane Iron Co, September 7th, 1888
Editor's Notes
re your letter 3d, the machine we have here will run through ten tons of ore crushed to 20 mesh in one hour and forty minutes. On some Lake Superior ore in which there was no phosphorous crushed to 1/4 inch the machine ran a ton through in four seconds, raising the material from 40% to 64% ore. We have a crusher and Cornish rolls. The system works here just as it will in practice. I guarentee results.
Author
Recipient
Date
1888-09-07
Type
Subject
Folder/Volume ID
D8818-F
Microfilm ID
122:550
Document ID
D8818ASV
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University