[N319015], Technical Note, Thomas Alva Edison, April 8th, 1886
https://edisondigital.rutgers.edu/document/N319015
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Title
[N319015], Technical Note, Thomas Alva Edison, April 8th, 1886
Editor's Notes
p. 15 dynamo drawing "Copy Extra coil fixed on outside of armature & at right angles to coil on armature with main current through it having same ampere spirals as armature"; p. 17 drawing "Copy this Two separate and distinct windings on one armature each with separate commutator 50 volts each-- The Two are connected in series at the brushes so the current of one tends to make a magnetism in armature the opposite of the other"; pp. 19-23 rough sketches; p. 25 dynamo drawings labeled "Copy"; p. 27 drawing "Copy Wind armature thus one turn around then before going to commutator another turn round but at right angles & so on winding in regular way-- Thus 1/2 the wire valueless but helps to concentrate the lines of force for the other so the result is the same as only 1/2 wire is used on loaded armature anyway owing to position of brushes"; pp. 29-33 dynamo sketches
Author
Date
1886-04-08
Type
Folder/Volume ID
N319-F
Microfilm ID
43:177
Document ID
N319015
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University