GB579524A - Improvements relating to electrical devices employing piezo-electric crystals - Google Patents
Improvements relating to electrical devices employing piezo-electric crystalsInfo
- Publication number
- GB579524A GB579524A GB9356/44A GB935644A GB579524A GB 579524 A GB579524 A GB 579524A GB 9356/44 A GB9356/44 A GB 9356/44A GB 935644 A GB935644 A GB 935644A GB 579524 A GB579524 A GB 579524A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrical devices
- crystal
- improvements relating
- devices employing
- electric crystals
- 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 title abstract 4
- 210000000078 claw Anatomy 0.000 abstract 2
- 230000008878 coupling Effects 0.000 abstract 2
- 238000010168 coupling process Methods 0.000 abstract 2
- 238000005859 coupling reaction Methods 0.000 abstract 2
- 241001422033 Thestylus Species 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 abstract 1
- LJCNRYVRMXRIQR-OLXYHTOASA-L potassium sodium L-tartrate Chemical compound [Na+].[K+].[O-]C(=O)[C@H](O)[C@@H](O)C([O-])=O LJCNRYVRMXRIQR-OLXYHTOASA-L 0.000 abstract 1
- 235000011006 sodium potassium tartrate Nutrition 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
- H04R17/04—Gramophone pick-ups using a stylus; Recorders using a stylus
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Manipulator (AREA)
Abstract
579,524. Gramophone pick - ups. COSMOCORD, Ltd., and SCHIDHANN, A. May 16, 1944, No. 9356. [Class 40 (iv)] [Also in Group XL] In a gramophone pick-up or the like, stress is applied to the crystal through a torsionally actuated flexible coupling. The stylus 1 is mounted in a transmission member 2 carried in bearings 3 and coupled through a member 8 to a claw 6 gripping a plate 5 of Rochelle Salt or like piezo-electric crystal held between blocks 9. The coupling member 8 is in the form of a rubber tube embracing cylindrical projections 4, 7 on member 2 and claw 6. The member 8 may be a rod engaging sockets on the parts 2, 6 or may be a flat plate or a flattish tube (Figs. 2-5, not shown). The fixed end of the crystal may be similarly connected to its support.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB254573X | 1944-05-16 | ||
| GB110645X | 1945-06-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB579524A true GB579524A (en) | 1946-08-07 |
Family
ID=26248006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9356/44A Expired GB579524A (en) | 1944-05-16 | 1944-05-16 | Improvements relating to electrical devices employing piezo-electric crystals |
Country Status (2)
| Country | Link |
|---|---|
| CH (1) | CH254573A (en) |
| GB (1) | GB579524A (en) |
-
1944
- 1944-05-16 GB GB9356/44A patent/GB579524A/en not_active Expired
-
1946
- 1946-06-05 CH CH254573D patent/CH254573A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH254573A (en) | 1948-05-15 |
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