GB290558A - - Google Patents
Info
- Publication number
- GB290558A GB290558A GB316/28A GB31628A GB290558A GB 290558 A GB290558 A GB 290558A GB 316/28 A GB316/28 A GB 316/28A GB 31628 A GB31628 A GB 31628A GB 290558 A GB290558 A GB 290558A
- Authority
- GB
- United Kingdom
- Prior art keywords
- changes
- armature
- post
- chamber
- 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
- 239000007788 liquid Substances 0.000 abstract 3
- 239000000463 material Substances 0.000 abstract 3
- 238000013016 damping Methods 0.000 abstract 2
- 241001422033 Thestylus Species 0.000 abstract 1
- 239000004359 castor oil Substances 0.000 abstract 1
- 229960001777 castor oil Drugs 0.000 abstract 1
- 235000019438 castor oil Nutrition 0.000 abstract 1
- 238000010276 construction Methods 0.000 abstract 1
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- LQNUZADURLCDLV-UHFFFAOYSA-N nitrobenzene Chemical compound [O-][N+](=O)C1=CC=CC=C1 LQNUZADURLCDLV-UHFFFAOYSA-N 0.000 abstract 1
- 239000011345 viscous material Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/16—Mounting or connecting stylus to transducer with or without damping means
-
- 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
- H04R11/08—Gramophone pick-ups using a stylus; Recorders using a stylus
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Electromagnetism (AREA)
- Combined Devices Of Dampers And Springs (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US191527A US1792497A (en) | 1927-05-14 | 1927-05-14 | Vibration-damping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB290558A true GB290558A (enrdf_load_stackoverflow) | 1929-04-05 |
Family
ID=22705849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB316/28A Expired GB290558A (enrdf_load_stackoverflow) | 1927-05-14 | 1928-01-05 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US1792497A (enrdf_load_stackoverflow) |
| DE (1) | DE559010C (enrdf_load_stackoverflow) |
| FR (1) | FR651221A (enrdf_load_stackoverflow) |
| GB (1) | GB290558A (enrdf_load_stackoverflow) |
| NL (1) | NL30962C (enrdf_load_stackoverflow) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2676806A (en) * | 1948-05-29 | 1954-04-27 | Columbia Broadcasting Syst Inc | Phonograph reproducer arm assembly |
-
0
- NL NL30962D patent/NL30962C/xx active
-
1927
- 1927-05-14 US US191527A patent/US1792497A/en not_active Expired - Lifetime
- 1927-12-31 DE DEE36715D patent/DE559010C/de not_active Expired
-
1928
- 1928-01-05 GB GB316/28A patent/GB290558A/en not_active Expired
- 1928-01-06 FR FR651221D patent/FR651221A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE559010C (de) | 1932-09-15 |
| FR651221A (fr) | 1929-02-19 |
| US1792497A (en) | 1931-02-17 |
| NL30962C (enrdf_load_stackoverflow) |
Similar Documents
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| GB290558A (enrdf_load_stackoverflow) | ||
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