GB1186065A - Electromagnetically Actuated Mechanical Oscillators particularly for use in Electronic Timepieces - Google Patents
Electromagnetically Actuated Mechanical Oscillators particularly for use in Electronic TimepiecesInfo
- Publication number
- GB1186065A GB1186065A GB25682/67A GB2568267A GB1186065A GB 1186065 A GB1186065 A GB 1186065A GB 25682/67 A GB25682/67 A GB 25682/67A GB 2568267 A GB2568267 A GB 2568267A GB 1186065 A GB1186065 A GB 1186065A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coil
- pair
- magnetic element
- oscillating
- tuning fork
- 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
- 244000089486 Phragmites australis subsp australis Species 0.000 abstract 1
- 235000014676 Phragmites communis Nutrition 0.000 abstract 1
- 238000010276 construction Methods 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
- H03B5/30—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator
- H03B5/32—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator
- H03B5/36—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator active element in amplifier being semiconductor device
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Electric Clocks (AREA)
- Electromechanical Clocks (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
1,186,065. Dynamo-electric machines. BULOVA WATCH CO. Inc. 2 June, 1967 [13 June, 1966], No. 25682/67. Heading H2A. [Also in Division G3] An electromagnetically actuated mechanical oscillating system e.g. a tuning fork oscillator for actuating an electronic timepiece, comprises a mechanical oscillator, e.g. a tuning fork having a pair of oscillating members 10, 11, and an electronic circuit assembly 17 including a drive coil 23 and a sensing coil 24 carried by an oscillating member 11 and extending into or disposed in an air gap in a magnetic element 16 carried by the other oscillating member 10, the electronic circuit being caused -to generate current pulses in the drive coil each creating a magnetic force imparting a momentum to the magnetic element 16 and on opposite momentum to the assembly 17. In the operation of the tuning fork oscillator illustrated control pulses generated in the sensing coil 24 render a transistor 25 conductive to provide the current pulses in the drive coil 24. A battery 29 is connected to the coil 23 via a slender U-shaped metal spring 32. A pawl 13 on the tine 10 actuates a ratchet wheel 14 to a drive timepiece in known manner. Other embodiments are described in which the magnetic element is 'of horseshoe shape or is of multiple construction to provide two air gaps. The mechanical oscillating system may alternatively comprise a torsional fork, a pair of torsional pendulums, or a pair of vibrating reeds.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US55718066A | 1966-06-13 | 1966-06-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1186065A true GB1186065A (en) | 1970-04-02 |
Family
ID=24224343
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB25682/67A Expired GB1186065A (en) | 1966-06-13 | 1967-06-02 | Electromagnetically Actuated Mechanical Oscillators particularly for use in Electronic Timepieces |
Country Status (4)
Country | Link |
---|---|
US (1) | US3421309A (en) |
CH (1) | CH551653A (en) |
DE (1) | DE1673722C3 (en) |
GB (1) | GB1186065A (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH510902A (en) * | 1967-06-27 | 1971-01-29 | Movado Montres | Mechanical rotation resonator for time measuring device |
US3541778A (en) * | 1968-04-05 | 1970-11-24 | Gen Time Corp | Battery-powered clock |
US3789681A (en) * | 1971-04-06 | 1974-02-05 | Suwa Seikosha Kk | Apparatus for transforming reciprocating motion into unidirectional rotation |
CH540510A (en) * | 1971-05-05 | 1973-04-30 | Omega Brandt & Freres Sa Louis | Vibration motor for timing device |
US3727151A (en) * | 1972-04-17 | 1973-04-10 | Bulova Watch Co Inc | Integrated circuit for electronic timepieces |
US4610546A (en) * | 1984-12-31 | 1986-09-09 | Technicon Instruments Corporation | Apparatus and method for self-resonant vibrational mixing |
US8030807B2 (en) * | 2005-12-09 | 2011-10-04 | Chubb International Holdings Limited | Electromechanical energy harvesting system |
KR100825478B1 (en) * | 2007-10-31 | 2008-04-25 | (주)엔텍 | Sound vibrator of tuning fork type |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3162006A (en) * | 1961-01-19 | 1964-12-22 | Bulova Watch Co Inc | Tuning fork for electronic timepiece |
-
1966
- 1966-06-13 US US557180A patent/US3421309A/en not_active Expired - Lifetime
-
1967
- 1967-06-02 GB GB25682/67A patent/GB1186065A/en not_active Expired
- 1967-06-07 CH CH808167A patent/CH551653A/de unknown
- 1967-06-07 DE DE1673722A patent/DE1673722C3/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
CH551653A (en) | 1974-07-15 |
DE1673722A1 (en) | 1971-03-18 |
US3421309A (en) | 1969-01-14 |
DE1673722B2 (en) | 1973-07-05 |
DE1673722C3 (en) | 1974-01-31 |
CH808167A4 (en) | 1969-04-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PLNP | Patent lapsed through nonpayment of renewal fees |