[LB009069], Letter from Thomas Alva Edison to Hinds Ketcham & Co, March 16th, 1881
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Title
[LB009069], Letter from Thomas Alva Edison to Hinds Ketcham & Co, March 16th, 1881
Editor's Notes
"Please give me the size of the cylinder on your little engine. My impression is that the engine was sold as a ten horse power with seventy five pounds boiler pressure and if so of course it would not be more than a six horse power with forty pounds of boiler pressure. All that is required to keep the lamps exactly what you want them to do is to run the dynamo machine 1400 revolutions at your boiler pressure at seventy five or eighty pounds while using the lights. Or(?) put the [----] sized belt on the main shaft and run it from your regulated engine or [--] get a new small engine."
Author
Recipient
Date
1881-03-16
Type
Folder/Volume ID
LB009-F
Microfilm ID
81:34
Document ID
LB009069
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University