GB1128050A - Improvements in electrical circuitry for timekeeping instruments - Google Patents
Improvements in electrical circuitry for timekeeping instrumentsInfo
- Publication number
- GB1128050A GB1128050A GB55462/65A GB5546265A GB1128050A GB 1128050 A GB1128050 A GB 1128050A GB 55462/65 A GB55462/65 A GB 55462/65A GB 5546265 A GB5546265 A GB 5546265A GB 1128050 A GB1128050 A GB 1128050A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coil
- condenser
- transistor
- transistors
- mechanical oscillation
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/28—Modifications for introducing a time delay before switching
-
- 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
- G04C3/02—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 pendulum
- G04C3/027—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 pendulum using electromagnetic coupling between electric power source and pendulum
- G04C3/0278—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 pendulum using electromagnetic coupling between electric power source and pendulum the pendulum controlling the gear-train by means of static switches, e.g. transistor circuits
-
- 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
-
- 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
- G04C3/108—Driving circuits
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Electric Clocks (AREA)
Abstract
1,128,050. Clocks and watches. UNITED STATES TIME CORP. Dec.31, 1965 [Jan.2, 1965], No.55462/65. Heading G3T. [Also in Division H3] An electronic timepiece comprises a permanent magnet 10 and a coil 14 mounted for relative mechanical oscillation, the coil 14 acting both as a pick-up coil and as a drive coil for maintaining the relative mechanical oscillation, a source 16 of direct current, an RC network, e.g. a condenser 26 and resistor 24, and an astable multi-vibrator including complementary transistors 18, 20 the emitters of which are connected together, and wherein the collector of the transistor 18 is connected to the current source 16, and the collector of the transistor 20 is connected to one end of the coil 14. In the illustrated embodiment the magnet 10 oscillates relatively to a fixed coil 14, the mechanical oscillation being started by the closing of a switch (not shown) whereby the condenser 26 charges through the resistor 24 to apply a negative voltage to the base of the transistor 18 so that current flows through the transistors 18, 20 in series to produce a current pulse in the coil 14. At the same time the condenser 26 discharges through the transistors 18, 20 which then become non-conducting to be rendered conducting again by each voltage pulse generated in the coil 14 by the relative movement of the coil and magnet.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEU11336A DE1244069B (en) | 1965-01-02 | 1965-01-02 | Drive circuit for time-keeping devices |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1128050A true GB1128050A (en) | 1968-09-25 |
Family
ID=7567597
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB55462/65A Expired GB1128050A (en) | 1965-01-02 | 1965-12-31 | Improvements in electrical circuitry for timekeeping instruments |
Country Status (6)
Country | Link |
---|---|
US (1) | US3403312A (en) |
JP (1) | JPS4811918B1 (en) |
CH (1) | CH539875A (en) |
DE (1) | DE1244069B (en) |
FR (1) | FR1461286A (en) |
GB (1) | GB1128050A (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3496391A (en) * | 1967-12-07 | 1970-02-17 | Clarence Hunter Mcshan | Resonant device |
US3539888A (en) * | 1968-07-24 | 1970-11-10 | Aeroprojects Inc | Automatic frequency control circuit for use with ultrasonic systems |
GB1274126A (en) * | 1969-03-28 | 1972-05-10 | Hattori Tokeiten Kk | Driving circuits for driving moveable elements particularly for motors or timepieces |
DE1963259C3 (en) * | 1969-12-17 | 1978-04-27 | Franz Hermle & Sohn, Uhrenfabrik, 7209 Gosheim | Permanent magnet dynamically driven movement for electronically controlled pendulum clocks |
US3762155A (en) * | 1971-12-23 | 1973-10-02 | Gen Electric | Simulated pendulum clock |
US3762154A (en) * | 1971-12-23 | 1973-10-02 | Gen Electric | Simulate pendulum clock |
JPS5922177U (en) * | 1982-07-30 | 1984-02-10 | 株式会社タカラ | pop-up 3D game board |
US4728871A (en) * | 1985-11-01 | 1988-03-01 | Andrews Roger W | Novelty electric motor |
US7315786B2 (en) * | 1998-10-16 | 2008-01-01 | Xencor | Protein design automation for protein libraries |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3124731A (en) * | 1964-03-10 | Electronic time pieces | ||
US2909732A (en) * | 1954-11-06 | 1959-10-20 | Philips Corp | Device for maintaining mechanical oscillations |
US3100278A (en) * | 1958-01-10 | 1963-08-06 | Reich Robert Walter | Electromagnetic pendulum drive |
ES249816A1 (en) * | 1958-06-14 | 1960-07-16 | Durowe A G | IMPROVEMENTS MADE IN THE TIMING MECHANICAL OSCILLATING ORGANS |
DE1166705B (en) * | 1958-09-03 | 1964-03-26 | Durowe Deutsche Uhren Rohwerke | Contactless mechanical oscillator controlled by electronic means as a gear folder of a time-keeping electrical device |
US3061796A (en) * | 1958-09-03 | 1962-10-30 | Durowe A G | Electric drive device for driving a mechanical oscillatory system |
CH481860A4 (en) * | 1960-04-28 | 1964-06-15 | ||
US3131362A (en) * | 1960-05-31 | 1964-04-28 | Ibm | Balanced transistor multivibrator |
US3238431A (en) * | 1965-01-25 | 1966-03-01 | Omega Brandt & Freres Sa Louis | Oscillating resonator for a timepiece with synchronized driving oscillator |
-
1965
- 1965-01-02 DE DEU11336A patent/DE1244069B/en active Pending
- 1965-12-14 CH CH1724165A patent/CH539875A/en unknown
- 1965-12-20 US US514971A patent/US3403312A/en not_active Expired - Lifetime
- 1965-12-24 FR FR43633A patent/FR1461286A/en not_active Expired
- 1965-12-31 JP JP41000095A patent/JPS4811918B1/ja active Pending
- 1965-12-31 GB GB55462/65A patent/GB1128050A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR1461286A (en) | 1966-12-10 |
DE1244069B (en) | 1967-07-06 |
CH539875A (en) | 1973-09-14 |
US3403312A (en) | 1968-09-24 |
JPS4811918B1 (en) | 1973-04-17 |
CH1724165A4 (en) | 1968-04-11 |
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