[NM023120], Technical Note, Arthur Edwin Kennelly, May 30th, 1889

Item

Abstract

Carrying Power of Conductors. Results in Table. Following page has a table with same heading that may be from 30 May and is followed by next page with table with same heading from 31 May. Under the table on p. 120 he writes: A test was made of the comparison of two phonograph motor armatures one made up of soft iron plates in the usual way, the other of cast iron entirely. When both armatures in seris with 100 volt cct. And res. The wrought iron ran 100% faster than the other, the machines and governors being disconnected. When machines at work taking chip with battery Current on wrought iron arm: machine 3.5 amp 1.6 volts = 5.6 Watts [Current] [on] cast [iron] [arm:] [machine] 3.8 [a,[] 1.55 [volts] = 8.9 [Watts] There was owing to the shrinkage of the cast iron distinctly more clearance with it than the wrought iron. Probably 50% more, and this it was estimated amply accounted for the deficiency here whown

Date

1889-05-30

Decade

1880-1889

Identifier

NM023120

Folder Set

NM023

Title

[NM023120], Technical Note, Arthur Edwin Kennelly, May 30th, 1889

Microfilm ID

104:376

Publisher

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