BE742637A - - Google Patents
Info
- Publication number
- BE742637A BE742637A BE742637DA BE742637A BE 742637 A BE742637 A BE 742637A BE 742637D A BE742637D A BE 742637DA BE 742637 A BE742637 A BE 742637A
- Authority
- BE
- Belgium
Links
Classifications
-
- 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
- G04B17/04—Oscillators acting by spring tension
- G04B17/10—Oscillators with torsion strips or springs acting in the same manner as torsion strips, e.g. weight oscillating in a horizontal plane
-
- 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
-
- 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)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1889668A CH508913A (fr) | 1967-03-13 | 1968-12-19 | Résonateur mécanique pour appareil de mesure du temps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE742637A true BE742637A (en:Method) | 1970-05-14 |
Family
ID=4435982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE742637D BE742637A (en:Method) | 1968-12-19 | 1969-12-04 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3631276A (en:Method) |
| BE (1) | BE742637A (en:Method) |
| CH (1) | CH1889668A4 (en:Method) |
| DE (1) | DE1963084B2 (en:Method) |
| FR (1) | FR2026522B2 (en:Method) |
| GB (1) | GB1266736A (en:Method) |
| NL (1) | NL6918535A (en:Method) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH533867A (de) * | 1971-04-27 | 1972-08-31 | Omega Brandt & Freres Sa Louis | Schwingungsmotor für Zeitmessgerät |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1235579A (en) * | 1914-09-02 | 1917-08-07 | Paul M Lincoln | Timing device. |
| US1728135A (en) * | 1925-07-17 | 1929-09-10 | Pillion Nicolas Louis | Electromagnetic stepping mechanism |
| US2424724A (en) * | 1945-07-27 | 1947-07-29 | Olive S Petty | Position dampened seismometer |
| US2849562A (en) * | 1953-08-06 | 1958-08-26 | Peter V N Heller | Acceleration responsive switch |
| FR1129105A (fr) * | 1955-06-30 | 1957-01-16 | Acec | Perfectionnements aux appareils enregistreurs et reproducteurs de sons |
| US2886720A (en) * | 1956-01-12 | 1959-05-12 | Gen Motors Corp | Coordinator for windshield washer and wipers |
| CH479103A (fr) * | 1967-03-13 | 1969-11-14 | Centre Electron Horloger | Résonateur mécanique pour appareil de mesure du temps |
-
1968
- 1968-12-19 CH CH1889668D patent/CH1889668A4/xx unknown
-
1969
- 1969-12-04 BE BE742637D patent/BE742637A/xx unknown
- 1969-12-08 US US882818A patent/US3631276A/en not_active Expired - Lifetime
- 1969-12-09 FR FR696942582A patent/FR2026522B2/fr not_active Expired
- 1969-12-10 NL NL6918535A patent/NL6918535A/xx unknown
- 1969-12-16 DE DE19691963084 patent/DE1963084B2/de active Granted
- 1969-12-17 GB GB1266736D patent/GB1266736A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL6918535A (en:Method) | 1970-06-23 |
| DE1963084A1 (de) | 1970-12-17 |
| FR2026522B2 (en:Method) | 1974-03-01 |
| GB1266736A (en:Method) | 1972-03-15 |
| CH1889668A4 (en:Method) | 1971-02-26 |
| US3631276A (en) | 1971-12-28 |
| DE1963084B2 (de) | 1972-07-13 |
| FR2026522A2 (en:Method) | 1970-09-18 |