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
Application number
Inventor
George Clement Downing
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of GB190708840A publication Critical patent/GB190708840A/en
Expired legal-status Critical Current

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  • 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.]
GB190708840D 1907-04-16 1907-04-16 Improvement in Graphophone Mandrels and the Records or Phonograms used upon same. Expired GB190708840A (en)

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)

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