GB884734A - Improvements in or relating to clocks and watches - Google Patents
Improvements in or relating to clocks and watchesInfo
- Publication number
- GB884734A GB884734A GB11309/58A GB1130958A GB884734A GB 884734 A GB884734 A GB 884734A GB 11309/58 A GB11309/58 A GB 11309/58A GB 1130958 A GB1130958 A GB 1130958A GB 884734 A GB884734 A GB 884734A
- Authority
- GB
- United Kingdom
- Prior art keywords
- transistor
- base
- watches
- clocks
- pendulum
- 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
- G04C3/02—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 pendulum
- G04C3/027—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 pendulum using electromagnetic coupling between electric power source and pendulum
- G04C3/0278—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 pendulum using electromagnetic coupling between electric power source and pendulum the pendulum controlling the gear-train by means of static switches, e.g. transistor circuits
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- General Physics & Mathematics (AREA)
- Electromechanical Clocks (AREA)
Abstract
884,734. Clocks and watches. JAHRESUHREN-FABRIK G.m.b.H. April 9, 1958 [April 10, 1957], No. 11309/58. Class 139. In a timepiece the pendulum 1, 2, Fig. 1, carries at least two permanent magnets 3, 3<SP>1</SP> and the maintaining circuit includes a transistor 5, two exciter-driving coil combinations 4, 4<SP>1</SP>, a rectifier 6 in each of the leads from an exciter coil to the base of the transistor and a variable resistor 7 between the collector and the base of the transistor. The rectifiers prevent positive pulses derived from the movement of the magnets 3, 31 into and out of the coils 4, 4<SP>1</SP> from reaching the base of the transistor. In another embodiment the pendulum is replaced by a balance carrying four permanent magnets and the maintaining circuit is as before.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE884734X | 1957-04-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB884734A true GB884734A (en) | 1961-12-13 |
Family
ID=6832562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB11309/58A Expired GB884734A (en) | 1957-04-10 | 1958-04-09 | Improvements in or relating to clocks and watches |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB884734A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3218181A1 (en) * | 1982-05-14 | 1983-11-17 | Kuno Moser GmbH, Fabrik für Feinmechanik und Elektrotechnik, 7731 Unterkirnach | Oscillating armature drive and a method for operating an oscillating armature drive |
-
1958
- 1958-04-09 GB GB11309/58A patent/GB884734A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3218181A1 (en) * | 1982-05-14 | 1983-11-17 | Kuno Moser GmbH, Fabrik für Feinmechanik und Elektrotechnik, 7731 Unterkirnach | Oscillating armature drive and a method for operating an oscillating armature drive |
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