GB368344A - Improvements relating to conical diaphragms for sound reproducing and recording apparatus - Google Patents

Improvements relating to conical diaphragms for sound reproducing and recording apparatus

Info

Publication number
GB368344A
GB368344A GB3657330A GB3657330A GB368344A GB 368344 A GB368344 A GB 368344A GB 3657330 A GB3657330 A GB 3657330A GB 3657330 A GB3657330 A GB 3657330A GB 368344 A GB368344 A GB 368344A
Authority
GB
United Kingdom
Prior art keywords
recording apparatus
improvements relating
sound reproducing
conical diaphragms
diaphragm
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
GB3657330A
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 GB3657330A priority Critical patent/GB368344A/en
Publication of GB368344A publication Critical patent/GB368344A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00Diaphragms for electromechanical transducers; Cones
    • H04R7/02Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/12Non-planar diaphragms or cones

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)

Abstract

368,344. Gramophones &c. MEAD, H. B., 71, Albert Road, Ilford, Essex. Dec. 4, 1930, No. 36573. [Class 40 (ii).] A gramophone or like soundbox 5 has its stylus bar 3, which is connected to the apex of the main diaphragm 1, controlled by a spring 6, whilst the secondary diaphragm 7 is secured at its apex to the back 9 of the soundbox which is formed with a series of apertures 11 registering with a series of apertures 13 in the diaphragm 7.
GB3657330A 1930-12-04 1930-12-04 Improvements relating to conical diaphragms for sound reproducing and recording apparatus Expired GB368344A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3657330A GB368344A (en) 1930-12-04 1930-12-04 Improvements relating to conical diaphragms for sound reproducing and recording apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3657330A GB368344A (en) 1930-12-04 1930-12-04 Improvements relating to conical diaphragms for sound reproducing and recording apparatus

Publications (1)

Publication Number Publication Date
GB368344A true GB368344A (en) 1932-03-04

Family

ID=10389359

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3657330A Expired GB368344A (en) 1930-12-04 1930-12-04 Improvements relating to conical diaphragms for sound reproducing and recording apparatus

Country Status (1)

Country Link
GB (1) GB368344A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2641329A (en) * 1950-05-29 1953-06-09 Univ Loudspeakers Inc Loud-speaker diaphragm with transversely arched stiffener means
US2967914A (en) * 1955-06-02 1961-01-10 Automatic Elect Lab Telephone transmitter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2641329A (en) * 1950-05-29 1953-06-09 Univ Loudspeakers Inc Loud-speaker diaphragm with transversely arched stiffener means
US2967914A (en) * 1955-06-02 1961-01-10 Automatic Elect Lab Telephone transmitter

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