[N317091], Technical Note, Thomas Alva Edison, April 12th, 1886
https://edisondigital.rutgers.edu/document/N317091
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Title
[N317091], Technical Note, Thomas Alva Edison, April 12th, 1886
Editor's Notes
pp. 90-93 drawings related to grasshopper telegraph; p. 95 I think Goerck should build a cheap gramme which will use the air cooling method of winding like that shewn in head light dynamo (drawing) wound either with field distortion or right angle widning on armature"; p. 97 "New cheap Grammed non spkg dynamo (drawing) 10/1000 sheet iron rings built up with tissue paper The rings are split and can be sprung enough to get coils on" drawing; p. 99 "It is doubtful is splitting the ring to get coils on is as good as a winding machine (drawing) Split bobbin run by belt slowly & fast-- fast to fill it & slow to unwind on Iron core--"; p. 100 "Have I patents split disks all put together at one common opening then after coils put on shift them [permanently?]
Author
Date
1886-04-12
Type
Folder/Volume ID
N317-F
Microfilm ID
43:48
Document ID
N317091
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University