GB246588A - Improvements in and relating to gramophones - Google Patents
Improvements in and relating to gramophonesInfo
- Publication number
- GB246588A GB246588A GB2608124A GB2608124A GB246588A GB 246588 A GB246588 A GB 246588A GB 2608124 A GB2608124 A GB 2608124A GB 2608124 A GB2608124 A GB 2608124A GB 246588 A GB246588 A GB 246588A
- Authority
- GB
- United Kingdom
- Prior art keywords
- motor
- switch
- spring
- wound
- open
- 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
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
Landscapes
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
246,588. British Thomson-Houston Co., Ltd., Salisbury, A. G., and Graham, D. H. Nov. 1, 1924. Driving.-Relates to gramophones of the kind in which the spring is wound by an electromotor, and consists in providing a centrifugal switch, adapted to open the motor circuit when the motor has been slowed down to a predetermined speed by the increase in tension of the spring. In the arrangement shown, a series-wound motor 3 winds the driving spring of the gramophone trough worm gearing 4. A press-button switch 7 and ,a centrifugal switch 5 on the motor shaft 6 are included in the circuit, Fig. 2, the two switches being in parallel. The motor is started by closing the switch 7, which may be opened when the centrifugal switch 5 subsequently closes. When the spring is sufficiently wound, the consequent slowing-down of the motor causes the switch 5 to open, and the motor stops.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2608124A GB246588A (en) | 1924-11-01 | 1924-11-01 | Improvements in and relating to gramophones |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2608124A GB246588A (en) | 1924-11-01 | 1924-11-01 | Improvements in and relating to gramophones |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB246588A true GB246588A (en) | 1926-02-01 |
Family
ID=10238044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2608124A Expired GB246588A (en) | 1924-11-01 | 1924-11-01 | Improvements in and relating to gramophones |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB246588A (en) |
-
1924
- 1924-11-01 GB GB2608124A patent/GB246588A/en not_active Expired
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