[N223152], Technical Note, Francis Jehl, July 27th, 1881
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Title
[N223152], Technical Note, Francis Jehl, July 27th, 1881
Editor's Notes
Got a square bar of German Silver made by Bergmann. "I then connected this with the small dynamo machine with 2.6 ohms in circuit and it heated it up to 195 F. I then had the experiment tried as shown in the fig on the next page" Scores of temp measurements at timed intervals. On p. 157, "we put the blas on again and took the temp every 10 seconds." Then p. 160, "I took this bar of German silver and covered it with 8 thicknesses of the parchment paper were are at present experimenting on. In this experiment the blast only struck on one side of the bar."
Author
Mentioned
Date
1881-07-27
Type
Subject
Folder/Volume ID
N223-F
Microfilm ID
41:109
Document ID
N223152
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University