GB850283A - Improvements in or relating to electric clocks - Google Patents
Improvements in or relating to electric clocksInfo
- Publication number
- GB850283A GB850283A GB39107/56A GB3910756A GB850283A GB 850283 A GB850283 A GB 850283A GB 39107/56 A GB39107/56 A GB 39107/56A GB 3910756 A GB3910756 A GB 3910756A GB 850283 A GB850283 A GB 850283A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coils
- transistor
- pendulum
- coil
- wound
- 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)
- Near-Field Transmission Systems (AREA)
- Electric Clocks (AREA)
Abstract
850,283. Electric clocks. OBERGFELL, R., and OBERGFELL, H., [trading as KIENIGER & OBERFELL]. Dec. 21, 1956 [Dec. 24, 1955; Aug. 4, 1956; Aug. 27, 1956], No. 39107/56. Class 139 In an electric timepiece the maintaining circuit of the pendulum or balance includes a pick-up coil 2, Fig. 1, a driving coil 3, a transistor 1 and a battery 4. To suppress oscillation of the circuit a resistor 5 is connected across the coil 3 or instead, a capacitor 6 may be connected between the base and the collector of the transistor. The magnet 10, Fig. 2, is carried by a curved member 9 of a stirrup 8 fixed to the pendulum 7. The coils 2, 3, the transistor 1 and the resistor 5 are inserted in suitable holes or recesses in a support 13 which has grooves for the connecting leads. The circuit elements may be held in their recesses by varnish and the support 13 may have an annular casing. The coils may be layer wound or lattice wound and one of the coils or the magnet may be movable to vary the instant of impulse. The coils may be wound one on the other, Fig. 5. If the coils are arranged at opposite sides of the pendulum, Fig. 4, each of the coils may be replaced by the double coil arrangement of Fig. 5 in common or separate transistor circuits.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE850283X | 1955-12-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB850283A true GB850283A (en) | 1960-10-05 |
Family
ID=6776984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB39107/56A Expired GB850283A (en) | 1955-12-24 | 1956-12-21 | Improvements in or relating to electric clocks |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB850283A (en) |
-
1956
- 1956-12-21 GB GB39107/56A patent/GB850283A/en not_active Expired
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