[D8238ZCS], Letter from Francis Jehl to Thomas Alva Edison, September 1st, 1882

https://edisondigital.rutgers.edu/document/D8238ZCS

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Title

[D8238ZCS], Letter from Francis Jehl to Thomas Alva Edison, September 1st, 1882

Editor's Notes

[from Paris] Prevailed on Batch about 1 month ago to buy Deprez galv to replace dynamometers, which require much attention and standardizing, and can't be read in an instant. Describes construction and use of Deprez [drawing enclosed]. Substituted mirror for pointer; testing of inst for suitability for lamp work. One of these will do the work of 3 or 4 dynamometers; would also be useful in central station or anyplace a Thompson galv is used. My position here is like that of inspector gneneral--"pity me." Economy of lamps in Paris greater than 10 per hp. but lifetime is short but expect will increase. Heard Mott & wife were in London, now in Geneva. They [Geneva?] turning out small dynamos daily, & advancing in their socket & lamp fixtures. Have begun to make parts for large machine.

Author

Date

1882-09-01

Decade

1880-1889

Type

Folder/Volume ID

D8238-F

Microfilm ID

62:479

Document ID

D8238ZCS

Publisher

Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
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