GB305614A - Improvements in and relating to sound reproducing apparatus - Google Patents

Improvements in and relating to sound reproducing apparatus

Info

Publication number
GB305614A
GB305614A GB2994027A GB2994027A GB305614A GB 305614 A GB305614 A GB 305614A GB 2994027 A GB2994027 A GB 2994027A GB 2994027 A GB2994027 A GB 2994027A GB 305614 A GB305614 A GB 305614A
Authority
GB
United Kingdom
Prior art keywords
armature
sound reproducing
high control
locating strip
relating
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
GB2994027A
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.)
CHARLES MAHE DE CHENAL de la BOURDONNAIS PRINCE DE MAHE
Original Assignee
CHARLES MAHE DE CHENAL de la BOURDONNAIS PRINCE DE MAHE
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 CHARLES MAHE DE CHENAL de la BOURDONNAIS PRINCE DE MAHE filed Critical CHARLES MAHE DE CHENAL de la BOURDONNAIS PRINCE DE MAHE
Priority to GB2994027A priority Critical patent/GB305614A/en
Publication of GB305614A publication Critical patent/GB305614A/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
    • H04R11/00—Transducers of moving-armature or moving-core type

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Reciprocating Pumps (AREA)

Abstract

305,614. La Bourdonnais, (Prince de MahÚ), C. M. de C. de. Nov. S. 1927. Magnetic instruments.-In an electromagnetic mechanism for actuating a sound reproducing diaphragm of the type embodying a balanced armature mounted upon a central support about which it oscillates resilient means, yielding a high control force, is provided at a point external to the region embraced by the magnet poles. The Figure shows an armature a mounted upon a lateral locating strip b of very thin manganese between pole-pieces cd. The diaphragm driving rad g is attached to a reed h which, exerting a high control, permits the mass of the armature to be increased without adverse effect. The locating strip h is preferably notched at the centre to further reduce eddy currents.
GB2994027A 1927-11-08 1927-11-08 Improvements in and relating to sound reproducing apparatus Expired GB305614A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2994027A GB305614A (en) 1927-11-08 1927-11-08 Improvements in and relating to sound reproducing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2994027A GB305614A (en) 1927-11-08 1927-11-08 Improvements in and relating to sound reproducing apparatus

Publications (1)

Publication Number Publication Date
GB305614A true GB305614A (en) 1929-02-08

Family

ID=10299678

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2994027A Expired GB305614A (en) 1927-11-08 1927-11-08 Improvements in and relating to sound reproducing apparatus

Country Status (1)

Country Link
GB (1) GB305614A (en)

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