[N120256], Technical Note, William Joseph Hammer, December 7th, 1880

https://edisondigital.rutgers.edu/document/N120256

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Title

[N120256], Technical Note, William Joseph Hammer, December 7th, 1880

Editor's Notes

notes on globe lined inside & coated outside with Pt foil; "Globe lined inside & coated outside with platinum foil The inside part having pitch ball coated with platina on one wire which made contact with inside coating the other wire to be connectec with outside coating." other globes with Pt foil reflectors. Fr 639 "Condenser of tinfoil & mica several [???] 3 to 7 layers foil, fastened with shellac & gum {???] which volitilized & deposited on carbon changing resistance greatly"; globe with revolving magnet outside. Descriptions, but no explanations.

Date

1880-12-07

Folder/Volume ID

N120-F

Microfilm ID

37:638

Document ID

N120256

Publisher

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