[N301209], Technical Note, Francis Robbins Upton, February 9th, 1880

Item

Abstract

test of split rings with air spaces and cups placed on the outside to force air in, conclude n.g. and discusses problems in arrangement; armature made of iron plates .037 inch thick bolted together with brass rods insualted from the ends

Date

1880-02-09

Decade

1880-1889

Identifier

N301209

Folder Set

N301

Title

[N301209], Technical Note, Francis Robbins Upton, February 9th, 1880

Microfilm ID

32:887

Publisher

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

Timestamp

February 9, 1880