CA578729A - Electric timepiece - Google Patents
Electric timepieceInfo
- Publication number
- CA578729A CA578729A CA578729A CA578729DA CA578729A CA 578729 A CA578729 A CA 578729A CA 578729 A CA578729 A CA 578729A CA 578729D A CA578729D A CA 578729DA CA 578729 A CA578729 A CA 578729A
- Authority
- CA
- Canada
- Prior art keywords
- electric timepiece
- timepiece
- electric
- 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
- G04C3/08—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
-
- 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
-
- 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
-
- 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
- G04C3/107—Controlling frequency or amplitude of the oscillating system
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Electromechanical Clocks (AREA)
- Oscillators With Electromechanical Resonators (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH830518X | 1955-03-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA578729A true CA578729A (en) | 1959-06-30 |
Family
ID=4540267
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA578729A Expired CA578729A (en) | 1955-03-11 | Electric timepiece |
Country Status (6)
Country | Link |
---|---|
CA (1) | CA578729A (en) |
CH (1) | CH336025A (en) |
DE (1) | DE1038487B (en) |
FR (1) | FR1172522A (en) |
GB (1) | GB830518A (en) |
IT (1) | IT550130A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH447956A (en) * | 1965-11-30 | 1967-05-31 | Centre Electron Horloger | Impact protection device of a mechanical resonator for an electro-mechanical timepiece |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1911062A (en) * | 1927-03-17 | 1933-05-23 | Conrad Frank | Electric clock |
DE696032C (en) * | 1931-11-21 | 1940-09-09 | Georg Heinrich Schieferstein | |
US2260847A (en) * | 1938-05-27 | 1941-10-28 | Warren Telechron Co | Vibratory frequency standard |
CH213932A (en) * | 1939-09-18 | 1941-03-31 | Russenberger Max | Mechanical vibrator with control device for limiting a parameter of the vibration. |
FR972360A (en) * | 1941-02-14 | 1951-01-29 | Hatot Leon Ets | Advanced electromagnetic clocks |
FR1090564A (en) * | 1953-09-17 | 1955-03-31 | Hatot Leon Ets | Improvements to time mechanisms and similar devices |
-
0
- CA CA578729A patent/CA578729A/en not_active Expired
- IT IT550130D patent/IT550130A/it unknown
-
1955
- 1955-03-11 CH CH336025D patent/CH336025A/en unknown
-
1956
- 1956-03-08 DE DEB39444A patent/DE1038487B/en active Pending
- 1956-03-12 FR FR1172522D patent/FR1172522A/en not_active Expired
- 1956-03-12 GB GB7601/56A patent/GB830518A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR1172522A (en) | 1959-02-11 |
CH336025A (en) | 1959-01-31 |
DE1038487B (en) | 1958-09-04 |
IT550130A (en) | |
GB830518A (en) | 1960-03-16 |
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