notes on Thames embankment arc light expts from Engineering No. 698 p. 417; engineer testimony before Parliament No. 1221 p. 380 Mr. Samuel Hunter re gas costs; Hopkinson Engineering May 9, 1879 re efficiency of Siemens generator and Upton notes what his results would have been if testing TAE (more efficient), "we should measure % of the energy converted by the Siemens exclusive of the friction"; fr. 270 is TAE draft letter re Hopkinson; fr. 273 Upton's response; followed by Upton notes and calcs on calorimeter tests of efficiency (may be part of his letter)

Upton, Francis Robbins

Engineering

1879-00-00

1870-1879

Technical Note

Engines, boilers, prime movers

Escapement and governor mechanisms

Dynamos and generators

N037009

N037

[N037009] Technical Note, c. 1879

32:253

Thomas Edison National Historical Park

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

January 1, 1879