GB260946A - Improvements in electromagnetic devices, suitable for use with sound recording and reproducing devices and the like - Google Patents
Improvements in electromagnetic devices, suitable for use with sound recording and reproducing devices and the likeInfo
- Publication number
- GB260946A GB260946A GB1732526A GB1732526A GB260946A GB 260946 A GB260946 A GB 260946A GB 1732526 A GB1732526 A GB 1732526A GB 1732526 A GB1732526 A GB 1732526A GB 260946 A GB260946 A GB 260946A
- Authority
- GB
- United Kingdom
- Prior art keywords
- devices
- sound recording
- electromagnetic
- reproducing
- 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
- 230000004907 flux Effects 0.000 abstract 1
- 229910000889 permalloy Inorganic materials 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
- H04R11/00—Transducers of moving-armature or moving-core type
- H04R11/08—Gramophone pick-ups using a stylus; Recorders using a stylus
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Electromagnetism (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US66624A US1709571A (en) | 1925-11-03 | 1925-11-03 | Electromechanical translating device |
| US111209A US1628666A (en) | 1926-05-24 | 1926-05-24 | Electromagnetic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB260946A true GB260946A (en) | 1927-10-10 |
Family
ID=26746972
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1732526A Expired GB260946A (en) | 1925-11-03 | 1926-07-10 | Improvements in electromagnetic devices, suitable for use with sound recording and reproducing devices and the like |
| GB366227A Expired GB271409A (en) | 1925-11-03 | 1927-02-09 | Improvements in electromagnetic devices, suitable for use in sound recording and reproducing devices and the like |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB366227A Expired GB271409A (en) | 1925-11-03 | 1927-02-09 | Improvements in electromagnetic devices, suitable for use in sound recording and reproducing devices and the like |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE335046A (enrdf_load_stackoverflow) |
| FR (2) | FR620382A (enrdf_load_stackoverflow) |
| GB (2) | GB260946A (enrdf_load_stackoverflow) |
| NL (1) | NL22500C (enrdf_load_stackoverflow) |
-
0
- NL NL22500D patent/NL22500C/xx active
- BE BE335046D patent/BE335046A/xx unknown
-
1926
- 1926-07-02 FR FR620382D patent/FR620382A/fr not_active Expired
- 1926-07-10 GB GB1732526A patent/GB260946A/en not_active Expired
-
1927
- 1927-01-11 FR FR32964D patent/FR32964E/fr not_active Expired
- 1927-02-09 GB GB366227A patent/GB271409A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR620382A (fr) | 1927-04-21 |
| FR32964E (fr) | 1928-06-06 |
| GB271409A (en) | 1927-10-27 |
| NL22500C (enrdf_load_stackoverflow) | |
| BE335046A (enrdf_load_stackoverflow) |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB559047A (en) | Improvements relating to electromagnetic devices and especially to electric telegraph relays | |
| GB260946A (en) | Improvements in electromagnetic devices, suitable for use with sound recording and reproducing devices and the like | |
| GB445935A (en) | An improved sound reproducing device | |
| US2548109A (en) | Biasing system for magnetic recorders | |
| GB341531A (en) | Loud speakers | |
| GB233733A (en) | Improvements in or relating to telephone instruments | |
| GB254403A (en) | Improvements in electromagnetic microphones or the like, adapted to be actuated by agramophone or like record | |
| GB289804A (en) | Improvements in or relating to magnet systems for converting electrical into acoustic oscillations and vice versa | |
| GB306044A (en) | Improvements in and relating to sound reproducing apparatus | |
| GB276708A (en) | Improvements in sound recorders and reproducers | |
| GB335340A (en) | Improvements in and relating to electrical sound reproducing and recording instruments and apparatus | |
| GB273619A (en) | Improvements in sound reproducing machines | |
| GB235920A (en) | Improvements in telephone receivers | |
| GB300837A (en) | Improvements in and connected with sound reproducing instruments | |
| GB278406A (en) | Improvements in or relating to loud-speaking telephonic receivers | |
| GB322275A (en) | Improvements in or relating to sound reproducing devices | |
| GB227560A (en) | Improvements in telephone receivers and the like | |
| GB315109A (en) | Improvements relating to sound reproducing devices, such as loud speakers | |
| GB414967A (en) | Improvements relating to permanent magnets | |
| GB194117A (en) | Improvements in and relating to electromagnets | |
| GB211826A (en) | Improvements in or relating to sound-reproducing devices, applicable also for recording telegraphic signals | |
| GB350748A (en) | Improvements in sound reproducing and recording devices | |
| GB657005A (en) | Improvements in and relating to electrical measuring instruments | |
| GB322813A (en) | Improvements in or relating to electrical pick-ups and like reproducing or recordingdevices | |
| GB368763A (en) | Improvements in or relating to permanent magnets |