CH549829A - - Google Patents
Info
- Publication number
- CH549829A CH549829A CH1170070A CH1170070A CH549829A CH 549829 A CH549829 A CH 549829A CH 1170070 A CH1170070 A CH 1170070A CH 1170070 A CH1170070 A CH 1170070A CH 549829 A CH549829 A CH 549829A
- Authority
- CH
- Switzerland
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
- G04C3/08—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 mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically
- G04C3/10—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 mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically driven by electromagnetic means
- G04C3/101—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 mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically driven by electromagnetic means constructional details
- G04C3/102—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 mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically driven by electromagnetic means constructional details of the mechanical oscillator or of the coil
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- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B17/00—Mechanisms for stabilising frequency
- G04B17/20—Compensation of mechanisms for stabilising frequency
- G04B17/22—Compensation of mechanisms for stabilising frequency for the effect of variations of temperature
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- 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
- G04C3/08—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 mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically
- G04C3/10—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 mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically driven by electromagnetic means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Metallurgy (AREA)
- Electric Clocks (AREA)
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1170070A CH549829A (en:Method) | 1970-08-04 | 1970-08-04 | |
| DE19712137087 DE2137087B2 (de) | 1970-08-04 | 1971-07-24 | Vorrichtung zur kompensation der thermischen frequenzganges eines mechanischen oszillators fuer zeitmessung |
| US00166060A US3797224A (en) | 1970-08-04 | 1971-07-26 | Compensation of the thermal frequency drift of a mechanical oscillator for timekeeping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1170070A CH549829A (en:Method) | 1970-08-04 | 1970-08-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CH1170070A4 CH1170070A4 (en:Method) | 1973-12-28 |
| CH549829A true CH549829A (en:Method) | 1974-05-31 |
Family
ID=4376023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH1170070A CH549829A (en:Method) | 1970-08-04 | 1970-08-04 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3797224A (en:Method) |
| CH (1) | CH549829A (en:Method) |
| DE (1) | DE2137087B2 (en:Method) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4193008A (en) * | 1977-04-18 | 1980-03-11 | Murata Manufacturing Co., Ltd. | Tuning fork formed of rolled invariable elasticity material |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3207900A (en) * | 1961-11-29 | 1965-09-21 | Fitzgerald John Vincent | Radiation responsive dynamic mechanical system |
| CH196664A4 (en:Method) * | 1964-02-18 | 1965-11-30 | ||
| US3310757A (en) * | 1966-09-15 | 1967-03-21 | Bulova Watch Co Inc | Decoupling mounting plates for tuning fork oscillators |
| US3496391A (en) * | 1967-12-07 | 1970-02-17 | Clarence Hunter Mcshan | Resonant device |
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1970
- 1970-08-04 CH CH1170070A patent/CH549829A/xx unknown
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1971
- 1971-07-24 DE DE19712137087 patent/DE2137087B2/de active Granted
- 1971-07-26 US US00166060A patent/US3797224A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE2137087A1 (de) | 1972-02-10 |
| CH1170070A4 (en:Method) | 1973-12-28 |
| US3797224A (en) | 1974-03-19 |
| DE2137087B2 (de) | 1972-06-22 |