GB213058A - Improvements in and relating to sound boxes of sound recording or sound reproducing instruments - Google Patents

Improvements in and relating to sound boxes of sound recording or sound reproducing instruments

Info

Publication number
GB213058A
GB213058A GB301123A GB301123A GB213058A GB 213058 A GB213058 A GB 213058A GB 301123 A GB301123 A GB 301123A GB 301123 A GB301123 A GB 301123A GB 213058 A GB213058 A GB 213058A
Authority
GB
United Kingdom
Prior art keywords
sound
relating
box
boxes
recording
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
GB301123A
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
Priority to GB301123A priority Critical patent/GB213058A/en
Publication of GB213058A publication Critical patent/GB213058A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Casings For Electric Apparatus (AREA)

Abstract

213,058. Renison, M. A. Feb. 1, 1923. Sound-box cases. - The diaphragm of a sound-box for gramophones, telephones, &c. is made of compressed casein. The back wall b of the sound'-box may also be made of the same substance. In the gramophone sound-box shown, a tube g for connection to the tone-arm is screwed to the wall b, the tube having a flange which is fixed between rubber &c. washers j. The annular part a of the casing is of metal.
GB301123A 1923-02-01 1923-02-01 Improvements in and relating to sound boxes of sound recording or sound reproducing instruments Expired GB213058A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB301123A GB213058A (en) 1923-02-01 1923-02-01 Improvements in and relating to sound boxes of sound recording or sound reproducing instruments

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB301123A GB213058A (en) 1923-02-01 1923-02-01 Improvements in and relating to sound boxes of sound recording or sound reproducing instruments

Publications (1)

Publication Number Publication Date
GB213058A true GB213058A (en) 1924-03-27

Family

ID=9750259

Family Applications (1)

Application Number Title Priority Date Filing Date
GB301123A Expired GB213058A (en) 1923-02-01 1923-02-01 Improvements in and relating to sound boxes of sound recording or sound reproducing instruments

Country Status (1)

Country Link
GB (1) GB213058A (en)

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