GB869254A - Improvements in and relating to gramophone pickups - Google Patents
Improvements in and relating to gramophone pickupsInfo
- Publication number
- GB869254A GB869254A GB3700756A GB3700756A GB869254A GB 869254 A GB869254 A GB 869254A GB 3700756 A GB3700756 A GB 3700756A GB 3700756 A GB3700756 A GB 3700756A GB 869254 A GB869254 A GB 869254A
- Authority
- GB
- United Kingdom
- Prior art keywords
- casing
- sheath
- stylus
- crystal
- styli
- 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
- 239000013078 crystal Substances 0.000 abstract 3
- 241001589086 Bellapiscis medius Species 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000002184 metal 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
- H04R17/00—Piezoelectric transducers; Electrostrictive transducers
- H04R17/02—Microphones
-
- 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)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
869,254. Gramophone pick-ups. COSMOCORD Ltd. Dec. 9, 1957 [Dec. 4, 1956], No. 37007/56. Class 40 (2). A piezo-electric gramophone pick-up carttridge comprises a twister type crystal 10 embedded in a sheath 11 of compliant material enclosed in a casing 12. Projections 11a on the sheath engage the casing and restrain the crystal at one end, while at the opposite end is a cylindrical projection 11b, which engages a corresponding recess in the casing 12 to form a pivot and two opposed projections 11c by which two styli 13 can be mechanically connected to the crystal 10. Each stylus is attached to a resilient metal arm 15, the other end of which fits a slit in a compliant member 16 secured in the casing. The styli are about twice the length of a conventional stylus, each measuring approximately 100 mils in length and the greater part of the shank is embedded in the projection 11c. The compliance of the sheath is sufficient to allow the assembly of arm and stylus to be inserted and removed when desired but prevents accidental detachment. The casing 12 comprises two tray-like parts 12a and 12b joined by an intermediate part 12c which enables the two parts to be folded over to enclose the sheath 11. Specifications 822,642 and 849,626 are referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3700756A GB869254A (en) | 1956-12-04 | 1956-12-04 | Improvements in and relating to gramophone pickups |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3700756A GB869254A (en) | 1956-12-04 | 1956-12-04 | Improvements in and relating to gramophone pickups |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB869254A true GB869254A (en) | 1961-05-31 |
Family
ID=10392958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3700756A Expired GB869254A (en) | 1956-12-04 | 1956-12-04 | Improvements in and relating to gramophone pickups |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB869254A (en) |
-
1956
- 1956-12-04 GB GB3700756A patent/GB869254A/en not_active Expired
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