[PT032ABG2], Technical Note, Thomas Alva Edison, September 13th, 1888
https://edisondigital.rutgers.edu/document/PT032ABG2
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Title
[PT032ABG2], Technical Note, Thomas Alva Edison, September 13th, 1888
Editor's Notes
TAE marg: "Hurry this. Want it in patent offs Wednesday SURE [Wed. 9/19] TAE autograph appn: "The object of this invention is to produce Reproducers for phonographs which shall work independently of the irregularity of the recorded surface.###The invention consists of a new & novel moveable fulcrum, which although not a fulcrum in an ordinary mechanical sense is still a fulcrum to the motions produced in leversd etc fom recorded sounds on phonographic material….." Does not use elastic material (as in previous applications) which diminish motion (and sound). "The present invention supplies a reproducer which will reproduce without change of volume or scraping noise, from round cylinders to oval cylinders." Includes 5 figures; references to 6 in text.] "SEELY CLAIM EVERYTHING. THROW YOUR WHOLE INTELLECT ON THIS, IT'S A DAISY." Followed by several pages explaining the drawings further.
Author
Date
1888-09-13
Type
Folder/Volume ID
PT032ABG-F
Microfilm ID
114:493
Document ID
PT032ABG2
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University