GB562803A - Improvements in electrical gramophone pick-ups - Google Patents
Improvements in electrical gramophone pick-upsInfo
- Publication number
- GB562803A GB562803A GB154243A GB154243A GB562803A GB 562803 A GB562803 A GB 562803A GB 154243 A GB154243 A GB 154243A GB 154243 A GB154243 A GB 154243A GB 562803 A GB562803 A GB 562803A
- Authority
- GB
- United Kingdom
- Prior art keywords
- crystal element
- stylus
- spindle
- gramophone pick
- unit
- 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
Landscapes
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
562,803. Magnetic and piezo-electric gramophone pick-up. SCHUMANN, A. Jan. 29, 1943, No. 1542. [Class 40 (ii)] [Also in Groups XXXIX and XL] The oscillations of the stylus 2 of a gramophone pick-up are transmitted to an electromagnetic or a piezo-electric unit by a hollow spindle 1 filled with oil or other damping medium 4. The stylus has a sapphire point 3 and is screwed into the end of the hollow spindle 1. This spindle is mounted within resilient linings 7a in internal collars 7 in a housing 6. The end of the spindle remote from the stylus may be connected to one end of a Rochelle crystal element A, Fig. 1, by means of a claw 5 with a rubber packing 8, the other end of the crystal element being anchored in a block 9. Or the spindle is rigidly attached to one end of the crystal element, and the other end of the crystal element is free, the housing of the crystal element being then filled with oil or grease. Alternatively, the end of the hollow spindle remote from the stylus may be attached to an armature 17, Fig. 2, with a pivot 16 in a sleeve 18 inside the bobbin 14 of an electromagnetic unit, the end of the armature oscillating between the polepieces of the unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB154243A GB562803A (en) | 1943-01-29 | 1943-01-29 | Improvements in electrical gramophone pick-ups |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB154243A GB562803A (en) | 1943-01-29 | 1943-01-29 | Improvements in electrical gramophone pick-ups |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB562803A true GB562803A (en) | 1944-07-17 |
Family
ID=9723783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB154243A Expired GB562803A (en) | 1943-01-29 | 1943-01-29 | Improvements in electrical gramophone pick-ups |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB562803A (en) |
-
1943
- 1943-01-29 GB GB154243A patent/GB562803A/en not_active Expired
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