GB368344A - Improvements relating to conical diaphragms for sound reproducing and recording apparatus - Google Patents
Improvements relating to conical diaphragms for sound reproducing and recording apparatusInfo
- Publication number
- GB368344A GB368344A GB3657330A GB3657330A GB368344A GB 368344 A GB368344 A GB 368344A GB 3657330 A GB3657330 A GB 3657330A GB 3657330 A GB3657330 A GB 3657330A GB 368344 A GB368344 A GB 368344A
- Authority
- GB
- United Kingdom
- Prior art keywords
- recording apparatus
- improvements relating
- sound reproducing
- conical diaphragms
- diaphragm
- 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
- H04R7/12—Non-planar diaphragms or cones
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Abstract
368,344. Gramophones &c. MEAD, H. B., 71, Albert Road, Ilford, Essex. Dec. 4, 1930, No. 36573. [Class 40 (ii).] A gramophone or like soundbox 5 has its stylus bar 3, which is connected to the apex of the main diaphragm 1, controlled by a spring 6, whilst the secondary diaphragm 7 is secured at its apex to the back 9 of the soundbox which is formed with a series of apertures 11 registering with a series of apertures 13 in the diaphragm 7.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3657330A GB368344A (en) | 1930-12-04 | 1930-12-04 | Improvements relating to conical diaphragms for sound reproducing and recording apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3657330A GB368344A (en) | 1930-12-04 | 1930-12-04 | Improvements relating to conical diaphragms for sound reproducing and recording apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
GB368344A true GB368344A (en) | 1932-03-04 |
Family
ID=10389359
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3657330A Expired GB368344A (en) | 1930-12-04 | 1930-12-04 | Improvements relating to conical diaphragms for sound reproducing and recording apparatus |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB368344A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2641329A (en) * | 1950-05-29 | 1953-06-09 | Univ Loudspeakers Inc | Loud-speaker diaphragm with transversely arched stiffener means |
US2967914A (en) * | 1955-06-02 | 1961-01-10 | Automatic Elect Lab | Telephone transmitter |
-
1930
- 1930-12-04 GB GB3657330A patent/GB368344A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2641329A (en) * | 1950-05-29 | 1953-06-09 | Univ Loudspeakers Inc | Loud-speaker diaphragm with transversely arched stiffener means |
US2967914A (en) * | 1955-06-02 | 1961-01-10 | Automatic Elect Lab | Telephone transmitter |
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