[D8523ZBE], Letter from Edison Electric Illuminating Co (Shamokin), William M Brock to William H Douty, June 20th, 1885


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


[D8523ZBE], Letter from Edison Electric Illuminating Co (Shamokin), William M Brock to William H Douty, June 20th, 1885

Editor's Notes

Writing to lay out views about the practicability of running "our small engine" with the large one with the Dynamos working in multiple. Will probably be called upon to furnish current for 1700 to 2000 lamps this fall, which will require the assistance of the small (8 1/2 X 10) engine. Discusses problems with controlling the regulation of the engine, even with the constant attendance of Mr. Doubleday and "at three different time" an Armington and Sims representative. Believes excessive lamp breakage is due to the engine. Spent two days with Andrews trying to standardize volt meters with small engine, but couldn't. Andrews thinks the engine is worthless. Also discusses other "evils" that could cause trouble viz running dynamos in multiple with heavey load driven by an ungovernable engine (need to be able to produce same electromotor force in each) [letter goes into more detail on each of these problems]. Concludes that even if they get a better engine, also need an ampere meter for each dynamo. "When our mains are reinforced, and our feeders fully equipped with equalizers as suggested in Mr. Andrews' report to the Edison Light co., and our small engine replaced with a heavier one, I am of the opinion that our plant will be in good working order and that we shall see some valuable results." But also need another large engine, two more large dynamos, ampere meters, and a standardizing volt meter.







Folder/Volume ID


Microfilm ID


Document ID



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