DE257169C - - Google Patents
Info
- Publication number
- DE257169C DE257169C DENDAT257169D DE257169DA DE257169C DE 257169 C DE257169 C DE 257169C DE NDAT257169 D DENDAT257169 D DE NDAT257169D DE 257169D A DE257169D A DE 257169DA DE 257169 C DE257169 C DE 257169C
- Authority
- DE
- Germany
- Prior art keywords
- disc
- membrane
- pin
- gear
- attached
- 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.)
- Active
Links
- 239000012528 membrane Substances 0.000 claims description 15
- 239000002184 metal Substances 0.000 claims description 3
- 230000010355 oscillation Effects 0.000 description 3
- 241000189705 Dunedin group Species 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
- G10K9/10—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers driven by mechanical means only
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Transmission Devices (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE257169C true DE257169C (cs) |
Family
ID=515113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT257169D Active DE257169C (cs) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE257169C (cs) |
-
0
- DE DENDAT257169D patent/DE257169C/de active Active
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