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

Item

Abstract

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

Decade

1880-1889

Identifier

N120256

Folder Set

N120

Title

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

Microfilm ID

37:638

Publisher

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