GB664823A - Improvements in electro-acoustic transducers - Google Patents
Improvements in electro-acoustic transducersInfo
- Publication number
- GB664823A GB664823A GB10403/48A GB1040348A GB664823A GB 664823 A GB664823 A GB 664823A GB 10403/48 A GB10403/48 A GB 10403/48A GB 1040348 A GB1040348 A GB 1040348A GB 664823 A GB664823 A GB 664823A
- Authority
- GB
- United Kingdom
- Prior art keywords
- strings
- gong
- damper
- april
- electronic musical
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Abstract
664,823. Electronic musical instruments. MARTENOT, M. April 14, 1948. [April 15, 1947] No. 10403/48. Class 88 (ii). [Also in Group XXXIX] A loudspeaker for use with electronic musical instruments comprises a diaphragm and a number of strings adapted to vibrate simultaneously at different frequencies. In Fig. 2, a number of strings 12 arranged on each side of a flat diaphragm are actuated at their point of coincidence B, the strings being varied in tension, weight or length according to the desired frequencies. A damper 24 for each set of strings may be operated by the musician. The Specification, as open to inspection under Sect. 91, also contained the following subject matter. A motive unit 5, Fig. 2 (Cancelled), through an adjustable connector 6, actuates a freely mounted gong 1 eccentrically. A damper 9 can be applied mechanically to the gong. This subject-matter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR276191X | 1947-04-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB664823A true GB664823A (en) | 1952-01-16 |
Family
ID=8886366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB10403/48A Expired GB664823A (en) | 1947-04-15 | 1948-04-14 | Improvements in electro-acoustic transducers |
Country Status (2)
| Country | Link |
|---|---|
| CH (1) | CH276191A (en) |
| GB (1) | GB664823A (en) |
-
1948
- 1948-04-14 CH CH276191D patent/CH276191A/en unknown
- 1948-04-14 GB GB10403/48A patent/GB664823A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH276191A (en) | 1951-06-30 |
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