GB825856A - Time-piece - Google Patents
Time-pieceInfo
- Publication number
- GB825856A GB825856A GB12632/56A GB1263256A GB825856A GB 825856 A GB825856 A GB 825856A GB 12632/56 A GB12632/56 A GB 12632/56A GB 1263256 A GB1263256 A GB 1263256A GB 825856 A GB825856 A GB 825856A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coil
- transistor
- april
- balance
- circuit
- 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
- G04—HOROLOGY
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
- G04C3/04—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a balance
- G04C3/06—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a balance using electromagnetic coupling between electric power source and balance
- G04C3/065—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a balance using electromagnetic coupling between electric power source and balance the balance controlling gear-train by means of static switches, e.g. transistor circuits
Abstract
825,856. Clocks. BRANDT & FRERE S. A., O. L. April 25, 1956 [April 26, 1955], No 12632/56. Addition to 763,427. Class 139 In an electric timepiece the maintaining circuit of the balance 1, Fig 1, includes an electronic switch e.g. a transistor 12 connected as shown in Fig. 2 to a pick-up coil 14 and an impulsing coil 13 which co-operate with a magnet 9 on the balance 1. The transistor circuit operates as a blocking oscillator. The gear train to the hands may be driven mechanically, by a motor fed with the current pulses in the transistor collector circuit or by a second blocking oscillator. The coils 13, 14 may be replaced by a single dual purpose coil. Specifications 746,465 and 771,229 also are referred to.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH347783T | 1955-04-26 | ||
| CH1889455 | 1955-04-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB825856A true GB825856A (en) | 1959-12-23 |
Family
ID=25737020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB12632/56A Expired GB825856A (en) | 1955-04-26 | 1956-04-25 | Time-piece |
Country Status (2)
| Country | Link |
|---|---|
| CH (1) | CH357027A (en) |
| GB (1) | GB825856A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1229463B (en) * | 1962-04-17 | 1966-11-24 | Kienzle Uhrenfabriken Ges Mit | Electronic clock |
-
1955
- 1955-04-26 CH CH357027D patent/CH357027A/en unknown
-
1956
- 1956-04-25 GB GB12632/56A patent/GB825856A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH357027A (en) | 1961-09-15 |
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