[PT031AAQ], Patent Caveat, Thomas Alva Edison, September 9th, 1888
https://edisondigital.rutgers.edu/document/PT031AAQ
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Metadata
- Title
- [PT031AAQ], Patent Caveat, Thomas Alva Edison, September 9th, 1888
- Editor's Notes
- DRAFT CAVEAT (12 pgs; multiple subjects): phonograph (cutting cylinder grooves); string telephone; putting sound recordings on a thread(?); disk phono (auto regulating for surface velocity) [ie radial velocity]; various recording or reproducing points/diaphragms; governor; phono motor regulation; water motor & governor; glycerine dashpots?; "false shell for big cylinder"; other forms of cylinder "shells"; "wire wound oxidized iron wire armature pressed [illeg] like by hydraulic pressure, ditto short pieces of wire with Sol Ammoniac sol ditto iron turnings, then shellaced or japanned to stop furthuer oxidation; Diaphragms [p. 10] "Mica, Stell, phos benzo, Laminated steel phos bron, brass, glass, celluloid, also hard rubber, shellaced cloth, asphalted cloth, cork,"
- Author
- Edison, Thomas Alva
- Date
- 1888-09-09
- Type
- Patent Caveat
- Subject
- Cylinder recording & reproducing apparatus
- Cylinder record and duplicating technology
- Disc phonograph
- Folder ID
- PT031AAQ-F
- Microfilm ID
- 113:874
- Document ID
- PT031AAQ
- Publisher
- Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
- License
- CC0 1.0 Universal
- Has Version
- Archive.org Viewer, Microfilm Series Reel 113