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GB269804A - Improvements relating to acoustical devices - Google Patents

Improvements relating to acoustical devices

Info

Publication number
GB269804A
GB269804A GB2675526A GB2675526A GB269804A GB 269804 A GB269804 A GB 269804A GB 2675526 A GB2675526 A GB 2675526A GB 2675526 A GB2675526 A GB 2675526A GB 269804 A GB269804 A GB 269804A
Authority
GB
United Kingdom
Prior art keywords
diaphragm
movable element
disc
coil
operating
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
GB2675526A
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Priority to GB2675526A priority Critical patent/GB269804A/en
Publication of GB269804A publication Critical patent/GB269804A/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
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/04—Construction, mounting, or centering of coil
    • H04R9/041—Centering

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

269,804. British Thomson-Houston Co., Ltd., (General Electric Co.). Oct. 23, 1926. Diaphragms; magnetic instruments; loudspeakers.-The movable element 24 of a soundreproducing apparatus or the like is centred by means of a flexible fibre or like disc 30 which prevents transverse movement of the movable element without applying appreciable restoring- force to its ordinary movement. The cone-shaped diaphragm 24 is connected to an operating-coil 29 'in an annular or equivalent air-gap of a magnetic circuit 15, 12, 11, 14 and the fibre disc has slots to enhance its flexibility and is mounted on the central pole piece 15 and is connected peripherally to the diaphragm or operating coil. The larger end of the diaphragm is suspended freely in an opening in a baffle or sounding board 23.
GB2675526A 1926-10-26 1926-10-26 Improvements relating to acoustical devices Expired GB269804A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2675526A GB269804A (en) 1926-10-26 1926-10-26 Improvements relating to acoustical devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2675526A GB269804A (en) 1926-10-26 1926-10-26 Improvements relating to acoustical devices

Publications (1)

Publication Number Publication Date
GB269804A true GB269804A (en) 1927-04-28

Family

ID=10248693

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2675526A Expired GB269804A (en) 1926-10-26 1926-10-26 Improvements relating to acoustical devices

Country Status (1)

Country Link
GB (1) GB269804A (en)

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