[D8137ZAC], Letter from Thomas Logan to Thomas Alva Edison, May 9th, 1881
https://edisondigital.rutgers.edu/document/D8137ZAC
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Title
[D8137ZAC], Letter from Thomas Logan to Thomas Alva Edison, May 9th, 1881
Editor's Notes
Record of laboratory work: disc armature, copper meter cells, regulator lamps. Sent pattern of small dynamo 10 fine wire brushes & 2 brush holders to TAE in NYC today. For factory: socket machines, small testing machine, nickle moulds, armatures. Porter engine run all day very high speed (c. 600 rpm) bearing about the same very hot.
Author
Recipient
Date
1881-05-09
Type
Folder/Volume ID
D8137-F
Microfilm ID
59:79
Document ID
D8137ZAC
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University