GB1293313A - A timebase mechanical vibrator - Google Patents
A timebase mechanical vibratorInfo
- Publication number
- GB1293313A GB1293313A GB25662/71A GB2566271A GB1293313A GB 1293313 A GB1293313 A GB 1293313A GB 25662/71 A GB25662/71 A GB 25662/71A GB 2566271 A GB2566271 A GB 2566271A GB 1293313 A GB1293313 A GB 1293313A
- Authority
- GB
- United Kingdom
- Prior art keywords
- timebase
- magnet
- mechanical vibrator
- march
- central arm
- 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
-
- 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
- G04B17/045—Oscillators acting by spring tension with oscillating blade springs
-
- 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)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
- Electromechanical Clocks (AREA)
Abstract
1293313 Clocks and watches CITIZEN WATCH Co Ltd 19 April 1971 [28 March 1970 31 March 1970 25 Dec 1970] 25662/71 Heading G3T A timebase mechanical vibrator has three parallel oscillatory arms 10b, 10b<SP>1</SP> and 10c, the ratio of the width of each of the outer arms to that of the central arm being n:2 where n is a positive integer larger than unity. The outer arms respectively carry the sensing magnet 17 and the drive magnet 18, associated with the coils 20,21 connected in the transistor circuit 23. The central arm 10c carries at its free end an indexing magnet 19 which co-operates with a magnetic wheel 22 having teeth 22a and apertures 22b, the wheel being the drive for the conventional time-piece gear train.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2984670U JPS499096Y1 (en) | 1970-03-28 | 1970-03-28 | |
JP3079570U JPS499097Y1 (en) | 1970-03-31 | 1970-03-31 | |
JP12531570 | 1970-12-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1293313A true GB1293313A (en) | 1972-10-18 |
Family
ID=27286736
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB25662/71A Expired GB1293313A (en) | 1970-03-28 | 1971-04-19 | A timebase mechanical vibrator |
Country Status (3)
Country | Link |
---|---|
US (1) | US3699412A (en) |
DE (1) | DE2115885B2 (en) |
GB (1) | GB1293313A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3787178A1 (en) * | 2019-08-30 | 2021-03-03 | Miniswys Sa | Piezoelectric drive unit |
EP3812842B1 (en) * | 2019-10-24 | 2023-11-29 | The Swatch Group Research and Development Ltd | Device for guiding the pivoting of a pivoting mass and timepiece resonator mechanism |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2690646A (en) * | 1948-06-10 | 1954-10-05 | Clifford Cecil Frank | Escapement mechanism |
US3462939A (en) * | 1965-02-12 | 1969-08-26 | Tokei Kk | Mechanical vibrator for timepiece |
-
1971
- 1971-03-26 US US128298A patent/US3699412A/en not_active Expired - Lifetime
- 1971-03-29 DE DE19712115885 patent/DE2115885B2/en active Granted
- 1971-04-19 GB GB25662/71A patent/GB1293313A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2115885A1 (en) | 1971-10-14 |
US3699412A (en) | 1972-10-17 |
DE2115885B2 (en) | 1976-11-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |