GB510297A - Improvements in or relating to gramophone pick-ups and like devices - Google Patents
Improvements in or relating to gramophone pick-ups and like devicesInfo
- Publication number
- GB510297A GB510297A GB22052/38A GB2205238A GB510297A GB 510297 A GB510297 A GB 510297A GB 22052/38 A GB22052/38 A GB 22052/38A GB 2205238 A GB2205238 A GB 2205238A GB 510297 A GB510297 A GB 510297A
- Authority
- GB
- United Kingdom
- Prior art keywords
- conductor
- bearing points
- point
- insulating
- bearing
- 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
- 239000004020 conductor Substances 0.000 abstract 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 239000010949 copper Substances 0.000 abstract 1
- 230000010355 oscillation Effects 0.000 abstract 1
- 229910052594 sapphire Inorganic materials 0.000 abstract 1
- 239000010980 sapphire Substances 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
- 230000001131 transforming effect Effects 0.000 abstract 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 abstract 1
- 229910052721 tungsten Inorganic materials 0.000 abstract 1
- 239000010937 tungsten 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
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/12—Gramophone pick-ups using a stylus; Recorders using a stylus
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Telephone Set Structure (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE207878X | 1937-07-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB510297A true GB510297A (en) | 1939-07-31 |
Family
ID=5793934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB22052/38A Expired GB510297A (en) | 1937-07-28 | 1938-07-25 | Improvements in or relating to gramophone pick-ups and like devices |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2240918A (enrdf_load_stackoverflow) |
| BE (1) | BE429396A (enrdf_load_stackoverflow) |
| CH (1) | CH207878A (enrdf_load_stackoverflow) |
| FR (1) | FR841322A (enrdf_load_stackoverflow) |
| GB (1) | GB510297A (enrdf_load_stackoverflow) |
| NL (1) | NL54031C (enrdf_load_stackoverflow) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2473650A (en) * | 1943-06-10 | 1949-06-21 | Zenith Radio Corp | Phonograph pickup with mechanical filter |
| US2547361A (en) * | 1947-05-19 | 1951-04-03 | Donald J Baker | Pickup head using torsional mount for armatures |
| US2622156A (en) * | 1949-01-27 | 1952-12-16 | Donald J Baker | Pickup head with removable armature and stylus assembly |
| US2637920A (en) * | 1949-04-28 | 1953-05-12 | Richard H Hallsted | Barrier for motor vehicle parking systems |
| NL251609A (enrdf_load_stackoverflow) * | 1959-05-21 |
-
0
- NL NL54031D patent/NL54031C/xx active
- BE BE429396D patent/BE429396A/xx unknown
-
1938
- 1938-06-18 US US214608A patent/US2240918A/en not_active Expired - Lifetime
- 1938-07-25 GB GB22052/38A patent/GB510297A/en not_active Expired
- 1938-07-26 CH CH207878D patent/CH207878A/de unknown
- 1938-07-28 FR FR841322D patent/FR841322A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL54031C (enrdf_load_stackoverflow) | |
| BE429396A (enrdf_load_stackoverflow) | |
| US2240918A (en) | 1941-05-06 |
| FR841322A (fr) | 1939-05-17 |
| CH207878A (de) | 1939-12-15 |
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