CH412070A4 - - Google Patents
Info
- Publication number
- CH412070A4 CH412070A4 CH412070DD CH412070A4 CH 412070 A4 CH412070 A4 CH 412070A4 CH 412070D D CH412070D D CH 412070DD CH 412070 A4 CH412070 A4 CH 412070A4
- 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
- G04C3/107—Controlling frequency or amplitude of the oscillating system
-
- 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
- G04C3/104—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 pawl or the ratched-wheel
- G04C3/105—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 pawl or the ratched-wheel pawl and ratched-wheel being magnetically coupled
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Microwave Tubes (AREA)
- Electromagnets (AREA)
- Electromechanical Clocks (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19691921795 DE1921795A1 (en) | 1969-04-29 | 1969-04-29 | Tuning fork drive for clocks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH412070A4 true CH412070A4 (en) | 1971-03-31 |
Family
ID=5732745
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH412070A CH513444A (en) | 1969-04-29 | 1970-03-18 | Tuning fork drive for clocks |
| CH412070D CH412070A4 (en) | 1969-04-29 | 1970-03-18 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH412070A CH513444A (en) | 1969-04-29 | 1970-03-18 | Tuning fork drive for clocks |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3638416A (en) |
| CH (2) | CH513444A (en) |
| DE (1) | DE1921795A1 (en) |
| FR (1) | FR2040350B1 (en) |
| GB (1) | GB1248179A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5538090B2 (en) * | 2010-06-23 | 2014-07-02 | 株式会社ジャパンディスプレイ | Glass cutter |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA704477A (en) * | 1965-02-23 | Nomura Yasuo | Tuning fork clock | |
| US2743614A (en) * | 1950-07-15 | 1956-05-01 | Clifford Cecil Frank | Mechanical oscillators |
| FR1044830A (en) * | 1950-07-15 | 1953-11-20 | Horstmann Magnetics Ltd | Mechanical oscillator and magnetic escapement mechanism comprising this oscillator |
| CH405171A (en) * | 1962-08-11 | 1965-09-15 | Lavet Marius Jean | Time apparatus and method of manufacturing this apparatus |
| FR1395583A (en) * | 1963-10-17 | 1965-04-16 | Improvements to small magnetoelectric devices regulated by combinations of vibrating organs | |
| US3338047A (en) * | 1965-10-18 | 1967-08-29 | Gen Time Corp | Frequency regulator for tuning fork drive system |
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1969
- 1969-04-29 DE DE19691921795 patent/DE1921795A1/en active Pending
-
1970
- 1970-03-18 CH CH412070A patent/CH513444A/en not_active IP Right Cessation
- 1970-03-18 CH CH412070D patent/CH412070A4/xx unknown
- 1970-03-26 GB GB04737/70A patent/GB1248179A/en not_active Expired
- 1970-04-13 FR FR707013169A patent/FR2040350B1/fr not_active Expired
- 1970-04-13 US US27470A patent/US3638416A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| GB1248179A (en) | 1971-09-29 |
| US3638416A (en) | 1972-02-01 |
| FR2040350B1 (en) | 1974-07-12 |
| FR2040350A1 (en) | 1971-01-22 |
| DE1921795A1 (en) | 1970-12-03 |
| CH513444A (en) | 1971-03-31 |