[D8123ZDO], Letter from Francis Robbins Upton to Thomas Alva Edison, August 20th, 1881

https://edisondigital.rutgers.edu/document/D8123ZDO

View document with UniversalViewer   → View document on Archive.org  → Re-use this digital object via a IIIF manifest

Title

[D8123ZDO], Letter from Francis Robbins Upton to Thomas Alva Edison, August 20th, 1881

Editor's Notes

Tried the japanned clamps yesterday; but blue took a long time and in one case broke the carbon. Drying by sulfuric acid doesn't show any advantages so far. Can't turn out 1000 lamps on 200 pumps in one run of 11-12 hours. Regarding reducing expenses: can turn out lamps faster than demand for them so recommends reducing staff and bringing down production to 600 lamps a day. This will raise cost of individual lamps but will reduce operating overhead.

Date

1881-08-20

Type

Folder/Volume ID

D8123-F

Microfilm ID

57:949

Document ID

D8123ZDO

Publisher

Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
Download CSV | JSON