[LB014331], Letter from Thomas Alva Edison to Charles Batchelor, October 25th, 1882


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


[LB014331], Letter from Thomas Alva Edison to Charles Batchelor, October 25th, 1882

Editor's Notes

Yours of 9th inst came to hand this a.m.##I can scarcely enlighten you yet as to engines. I have coupled the engines at the Station (Porters) with the Device of which you have heard successfully, and this week I am going to test two Armington & Sims Engines with a load on, & see how they act under the same conditions as Porters Engines. Then I shall be able to cable as to which engine we will use. I certainly do not think it will be the Porter. Immediately I decide I will send you the necessary drawings.##I think the best thing your people can do is to pay Siemens a royalty in Germany. The English Co pay him a royalty of 6% on the selling price but if your people make any such arrangement you must see that it is only for the life of the Armature Patent. Siemens will try to make the license for all his patents but do not allow this or you will have to pay royalty for a considerably longer period than if the license is confined to the Armature patent.##I will have the information you ask for got out & sent you as early as possible {ANNOTE RE: a&s ENGINES WITH LB014375; also on coupling of engines see NP017A1 image 6}





Folder/Volume ID


Microfilm ID


Document ID



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