[D8846ABB], Letter from Thomas Alva Edison to Richard Nott Dyer, July 20th, 1888
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Title
[D8846ABB], Letter from Thomas Alva Edison to Richard Nott Dyer, July 20th, 1888
Editor's Notes
TAE ALS; selectable---awareness of potential market for concentrated ore] "Please give me the state of my ore milling patents in countries outside of the US. I may want to take some more out. Do I in any US patent mention several partitions to make several grades. [Includes illustration] ### 2 is what I call a Mugwump & it seems to be essential in seperating iron ores as its No 2 that the Telaniferious iron falls which is but slightly magnetic & also where the phosphate of lime & other nonferrous matter falls which has some iron attached. This mugwump stuff can be used for foundry [cast] iron not being free enough of phosphorous sulphur etc for Bessemer [rolled/rails]-If I [unclear] this prepare a patent, also in same patent you might put the following [Includes another illustration and explanation]
Author
Recipient
Date
1888-07-20
Type
Folder/Volume ID
D8846-F
Microfilm ID
124:37
Document ID
D8846ABB
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University