GB322622A - Improvements in and relating to loud speakers - Google Patents

Improvements in and relating to loud speakers

Info

Publication number
GB322622A
GB322622A GB3321528A GB3321528A GB322622A GB 322622 A GB322622 A GB 322622A GB 3321528 A GB3321528 A GB 3321528A GB 3321528 A GB3321528 A GB 3321528A GB 322622 A GB322622 A GB 322622A
Authority
GB
United Kingdom
Prior art keywords
relating
loud speakers
moving coil
loud
rothermel
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
GB3321528A
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 GB3321528A priority Critical patent/GB322622A/en
Publication of GB322622A publication Critical patent/GB322622A/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)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)

Abstract

322,622. Rothermel, R. A. Nov. 13, 1928. Magnetic instruments.-In a moving coil loud-speaker, the vibratory system is provided with a centring arrangement comprising two supports c, d one on each side of the moving coil b. The inner support d comprises a concentric ring fixed at its outer rim to the casing of the instrument.
GB3321528A 1928-11-13 1928-11-13 Improvements in and relating to loud speakers Expired GB322622A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3321528A GB322622A (en) 1928-11-13 1928-11-13 Improvements in and relating to loud speakers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3321528A GB322622A (en) 1928-11-13 1928-11-13 Improvements in and relating to loud speakers

Publications (1)

Publication Number Publication Date
GB322622A true GB322622A (en) 1929-12-12

Family

ID=10350043

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3321528A Expired GB322622A (en) 1928-11-13 1928-11-13 Improvements in and relating to loud speakers

Country Status (1)

Country Link
GB (1) GB322622A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2609463A (en) * 1948-10-26 1952-09-02 Fauthal A Hassan Electric actuating device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2609463A (en) * 1948-10-26 1952-09-02 Fauthal A Hassan Electric actuating device

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