IT981520B - Dispositivo per il mantenimento delle oscillazioni del bilancere in un orologio - Google Patents
Dispositivo per il mantenimento delle oscillazioni del bilancere in un orologioInfo
- Publication number
- IT981520B IT981520B IT21923/73A IT2192373A IT981520B IT 981520 B IT981520 B IT 981520B IT 21923/73 A IT21923/73 A IT 21923/73A IT 2192373 A IT2192373 A IT 2192373A IT 981520 B IT981520 B IT 981520B
- Authority
- IT
- Italy
- Prior art keywords
- balancer
- swings
- clock
- maintenance
- balancer swings
- Prior art date
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
- G04C3/069—Driving circuits using a single coil for detection and driving purposes
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- General Physics & Mathematics (AREA)
- Electromechanical Clocks (AREA)
- Electronic Switches (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH456972A CH574637B5 (da) | 1972-03-28 | 1972-03-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
IT981520B true IT981520B (it) | 1974-10-10 |
Family
ID=4278532
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT21923/73A IT981520B (it) | 1972-03-28 | 1973-03-21 | Dispositivo per il mantenimento delle oscillazioni del bilancere in un orologio |
Country Status (7)
Country | Link |
---|---|
US (1) | US3844106A (da) |
JP (1) | JPS5319220B2 (da) |
CH (2) | CH574637B5 (da) |
DE (1) | DE2312140A1 (da) |
FR (1) | FR2177813B1 (da) |
GB (1) | GB1418749A (da) |
IT (1) | IT981520B (da) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1056166A (en) * | 1975-03-27 | 1979-06-12 | Jauch, Heinz | Method and aparatus for synchronising a mechanical oscillating system to the accuracy of a quartz standard |
JPS57188172U (da) * | 1981-05-25 | 1982-11-29 | ||
JPS63217288A (ja) * | 1987-03-06 | 1988-09-09 | Seikosha Co Ltd | 電磁駆動回路 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1673776A1 (de) * | 1967-04-19 | 1971-02-25 | Siemens Ag | Schaltungsanordnung zur kontaktlosen Steuerung eines mechanischen Schwingers |
DE2036330C3 (de) * | 1970-07-22 | 1974-05-02 | Deutsche Itt Industries Gmbh, 7800 Freiburg | Verfahren und Schaltungsanordnung zur automatischen Amplitudenregelung von elektromechanischen Schwingern |
DE2102025B1 (de) * | 1971-01-16 | 1972-07-13 | Deutsche Itt Industries Gmbh | Astabiler Miltivibrator mit zwei zueinander komplementären Transistoren |
-
1972
- 1972-03-28 CH CH456972A patent/CH574637B5/xx not_active IP Right Cessation
- 1972-03-28 CH CH456972D patent/CH456972A4/xx not_active IP Right Cessation
-
1973
- 1973-03-12 DE DE2312140A patent/DE2312140A1/de active Pending
- 1973-03-13 GB GB1205873A patent/GB1418749A/en not_active Expired
- 1973-03-13 FR FR7309279A patent/FR2177813B1/fr not_active Expired
- 1973-03-21 IT IT21923/73A patent/IT981520B/it active
- 1973-03-27 JP JP3496873A patent/JPS5319220B2/ja not_active Expired
- 1973-03-28 US US00345687A patent/US3844106A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CH456972A4 (da) | 1975-11-14 |
DE2312140A1 (de) | 1973-10-11 |
GB1418749A (en) | 1975-12-24 |
FR2177813A1 (da) | 1973-11-09 |
FR2177813B1 (da) | 1975-10-31 |
US3844106A (en) | 1974-10-29 |
JPS499278A (da) | 1974-01-26 |
JPS5319220B2 (da) | 1978-06-20 |
CH574637B5 (da) | 1976-04-15 |
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