GB190708840A - Improvement in Graphophone Mandrels and the Records or Phonograms used upon same. - Google Patents
Improvement in Graphophone Mandrels and the Records or Phonograms used upon same.Info
- Publication number
- GB190708840A GB190708840A GB190708840DA GB190708840A GB 190708840 A GB190708840 A GB 190708840A GB 190708840D A GB190708840D A GB 190708840DA GB 190708840 A GB190708840 A GB 190708840A
- Authority
- GB
- United Kingdom
- Prior art keywords
- graphophone
- phonograms
- mandrels
- records
- improvement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Investigating Or Analysing Biological Materials (AREA)
- Materials For Photolithography (AREA)
Abstract
8840. Downing, G. C., [Perkins, F. J.]. April 16. Phonographs.-A record cylinder 1 which is made of celluloid and may be folded as in Fig. 6, for sending through the post, is mounted upon an expanding sleeve adapted to be secured upon the conical mandrel 3 of the phonograph. The sleeve consists of longitudinal segments with ribs 4 and bearing end flanges 5, secured together by dowel pins 9, or by elastic bands, rings, or springs 16 resting in grooves in either the ends or the upper portions of the segments. An end ridge may be provided on the sleeve to prevent the celluloid film from slipping off. [Reference has been directed under Section 7 of Patents &c. Act, 1907, to Specifications Nos. 11,908, 24,382, and 24,382A, A.D. 1903.]
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB190708840T | 1907-04-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB190708840A true GB190708840A (en) | 1908-03-26 |
Family
ID=32633210
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB190708840D Expired GB190708840A (en) | 1907-04-16 | 1907-04-16 | Improvement in Graphophone Mandrels and the Records or Phonograms used upon same. |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB190708840A (en) |
-
1907
- 1907-04-16 GB GB190708840D patent/GB190708840A/en not_active Expired
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