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GB513282A - Improvements in or relating to diaphragms for electro-acoustic devices - Google Patents

Improvements in or relating to diaphragms for electro-acoustic devices

Info

Publication number
GB513282A
GB513282A GB1054038A GB1054038A GB513282A GB 513282 A GB513282 A GB 513282A GB 1054038 A GB1054038 A GB 1054038A GB 1054038 A GB1054038 A GB 1054038A GB 513282 A GB513282 A GB 513282A
Authority
GB
United Kingdom
Prior art keywords
diaphragm
fibrous material
base
diaphragms
forms
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
GB1054038A
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.)
FREDERICK WILLIAM CACKETT
Original Assignee
FREDERICK WILLIAM CACKETT
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 FREDERICK WILLIAM CACKETT filed Critical FREDERICK WILLIAM CACKETT
Priority to GB1054038A priority Critical patent/GB513282A/en
Priority to US248363A priority patent/US2206517A/en
Publication of GB513282A publication Critical patent/GB513282A/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
    • H04R7/12—Non-planar diaphragms or cones

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Abstract

513,282. Diaphragms. CACKETT, F. W. (Siemens & Halske Akt.-Ges). April 6, 1938, No. 10540. [Class 40 (iv)] A diaphragm, particularly for a moving- coil loudspeaker, is formed by applying fibrous material to the whole or to a part of a base of textile fabric which forms part of the diaphragm. As shown in Fig 1, a layer 3 of fibrous material is formed on a base 2 of gauze net having a corrugated peripheral portion 4 to which fibrous material is not applied and which forms a flexible support for the diaphragm. A cylindrical extension 5 of the layer 3 forms a support for the voice-coil. In a modification, Fig 3 (not shown), the base of textile fabric is of annular form and extends solely over the peripheral portion of the diaphragm. The fibrous material may be applied by moulding, casting, spraying or by suction in conjunction with a porous conical former.
GB1054038A 1938-04-06 1938-04-06 Improvements in or relating to diaphragms for electro-acoustic devices Expired GB513282A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1054038A GB513282A (en) 1938-04-06 1938-04-06 Improvements in or relating to diaphragms for electro-acoustic devices
US248363A US2206517A (en) 1938-04-06 1938-12-29 Electroacoustic apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1054038A GB513282A (en) 1938-04-06 1938-04-06 Improvements in or relating to diaphragms for electro-acoustic devices

Publications (1)

Publication Number Publication Date
GB513282A true GB513282A (en) 1939-10-09

Family

ID=9969698

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1054038A Expired GB513282A (en) 1938-04-06 1938-04-06 Improvements in or relating to diaphragms for electro-acoustic devices

Country Status (1)

Country Link
GB (1) GB513282A (en)

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