DE583770C - Daempfungseinrichtung fuer elektromagnetische Schallaufnahme- oder -wiedergabegeraete - Google Patents
Daempfungseinrichtung fuer elektromagnetische Schallaufnahme- oder -wiedergabegeraeteInfo
- Publication number
- DE583770C DE583770C DE1928583770D DE583770DA DE583770C DE 583770 C DE583770 C DE 583770C DE 1928583770 D DE1928583770 D DE 1928583770D DE 583770D A DE583770D A DE 583770DA DE 583770 C DE583770 C DE 583770C
- Authority
- DE
- Germany
- Prior art keywords
- short
- armature
- sound recording
- damping device
- reproducing devices
- 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
- 238000013016 damping Methods 0.000 title claims description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 239000004020 conductor Substances 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 239000012528 membrane Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
- E21F15/06—Filling-up mechanically
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R11/00—Transducers of moving-armature or moving-core type
-
- 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
- H04R7/14—Non-planar diaphragms or cones corrugated, pleated or ribbed
-
- 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
- H04R7/16—Mounting or tensioning of diaphragms or cones
- H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
- H04R7/20—Securing diaphragm or cone resiliently to support by flexible material, springs, cords, or strands
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Acoustics & Sound (AREA)
- Mining & Mineral Resources (AREA)
- Multimedia (AREA)
- Electromagnetism (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3258127A GB307106A (en) | 1927-12-02 | 1927-12-02 | Improvements relating to electro-magnetic acoustic devices, such as loud-speakers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE583770C true DE583770C (de) | 1933-09-09 |
Family
ID=10340862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE1928583770D Expired DE583770C (de) | 1927-12-02 | 1928-11-30 | Daempfungseinrichtung fuer elektromagnetische Schallaufnahme- oder -wiedergabegeraete |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE356543A (enExample) |
| DE (1) | DE583770C (enExample) |
| FR (1) | FR36327E (enExample) |
| GB (1) | GB307106A (enExample) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113107587B (zh) * | 2021-04-19 | 2022-06-07 | 太原理工大学 | 定向排布煤矸石骨料的煤矿胶结充填装置和充填方法 |
-
1927
- 1927-12-02 GB GB3258127A patent/GB307106A/en not_active Expired
-
1928
- 1928-11-30 DE DE1928583770D patent/DE583770C/de not_active Expired
- 1928-12-01 FR FR36327D patent/FR36327E/fr not_active Expired
- 1928-12-12 BE BE356543D patent/BE356543A/fr unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR36327E (fr) | 1930-05-08 |
| GB307106A (en) | 1929-03-04 |
| BE356543A (enExample) | 1929-01-31 |
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