GB565367A - Improvements in moving coil cone loud-speakers and microphones - Google Patents
Improvements in moving coil cone loud-speakers and microphonesInfo
- Publication number
- GB565367A GB565367A GB599642A GB599642A GB565367A GB 565367 A GB565367 A GB 565367A GB 599642 A GB599642 A GB 599642A GB 599642 A GB599642 A GB 599642A GB 565367 A GB565367 A GB 565367A
- Authority
- GB
- United Kingdom
- Prior art keywords
- microphones
- speakers
- diaphragm
- moving coil
- loud
- 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
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
- H04R9/06—Loudspeakers
-
- 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
- H04R9/025—Magnetic circuit
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
565,367. Loud-speakers and microphones. ALLAN, W. H. May 4, 1943, No. 0996/42. [Class 40 (iv)] An open diaphragm-type moving-coil loudspeaker or microphone comprises a substantially rigid diaphragm 1 mounted centrally by means of a fiexible disc 2 secured to a central support, and carrying at or near the periphery a speech coil 9 operating in the field between annular polepieces. The field may be produced by a permanent magnet 8 or energizing winding 7. The diaphragm may be conical as shown, plane, or exponential, and of circular or non-circular periphery. Specifications 229,759 and 271,604, [both in Class 40 (iv)], are referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB599642A GB565367A (en) | 1943-05-04 | 1943-05-04 | Improvements in moving coil cone loud-speakers and microphones |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB599642A GB565367A (en) | 1943-05-04 | 1943-05-04 | Improvements in moving coil cone loud-speakers and microphones |
Publications (1)
Publication Number | Publication Date |
---|---|
GB565367A true GB565367A (en) | 1944-11-08 |
Family
ID=9806500
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB599642A Expired GB565367A (en) | 1943-05-04 | 1943-05-04 | Improvements in moving coil cone loud-speakers and microphones |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB565367A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2418097A (en) * | 2004-09-09 | 2006-03-15 | Anthony John Andrews | Loudspeaker suspension element extends radially-inward to centre polepiece |
GB2500718A (en) * | 2012-03-30 | 2013-10-02 | Paul Raymond Knight | Edge- or circumferentially driven planar loudspeaker with Neodymium magnet system |
-
1943
- 1943-05-04 GB GB599642A patent/GB565367A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2418097A (en) * | 2004-09-09 | 2006-03-15 | Anthony John Andrews | Loudspeaker suspension element extends radially-inward to centre polepiece |
GB2500718A (en) * | 2012-03-30 | 2013-10-02 | Paul Raymond Knight | Edge- or circumferentially driven planar loudspeaker with Neodymium magnet system |
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