GB191405038A - Improvements in Acoustic Instruments. - Google Patents
Improvements in Acoustic Instruments.Info
- Publication number
- GB191405038A GB191405038A GB191405038DA GB191405038A GB 191405038 A GB191405038 A GB 191405038A GB 191405038D A GB191405038D A GB 191405038DA GB 191405038 A GB191405038 A GB 191405038A
- Authority
- GB
- United Kingdom
- Prior art keywords
- diaphragms
- acoustic instruments
- hess
- talking
- indentations
- 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
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/04—Plane diaphragms
- H04R7/06—Plane diaphragms comprising a plurality of sections or layers
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Abstract
5038. Hess, H. W. Feb. 26. Diaphragms for talking-machines are formed with a series of rows of indentations 3 which increase in diameter approximately in proportion to the perimeter of the circle upon which they are placed. They are preferably arranged in lines forming intersecting logarithmic spirals as shown. A small area in the centre and a margin for clamping purposes are left plain. Three such diaphragms separated by thin washers may be employed.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB191405038T | 1914-02-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB191405038A true GB191405038A (en) | 1915-02-25 |
Family
ID=32582304
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB191405038D Expired GB191405038A (en) | 1914-02-26 | 1914-02-26 | Improvements in Acoustic Instruments. |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB191405038A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1615466A3 (en) * | 2004-07-07 | 2006-12-27 | Tadashi Nagaoka | Acoustic diaphragm |
US8345916B2 (en) | 2007-05-18 | 2013-01-01 | Sennheiser Electronic Gmbh & Co. Kg | Electroacoustic sound transducer, receiver and microphone |
-
1914
- 1914-02-26 GB GB191405038D patent/GB191405038A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1615466A3 (en) * | 2004-07-07 | 2006-12-27 | Tadashi Nagaoka | Acoustic diaphragm |
US7986805B2 (en) | 2004-07-07 | 2011-07-26 | Tadashi Nagaoka | Acoustic diaphragm |
US8345916B2 (en) | 2007-05-18 | 2013-01-01 | Sennheiser Electronic Gmbh & Co. Kg | Electroacoustic sound transducer, receiver and microphone |
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