GB1128050A - Improvements in electrical circuitry for timekeeping instruments - Google Patents

Improvements in electrical circuitry for timekeeping instruments

Info

Publication number
GB1128050A
GB1128050A GB5546265A GB5546265A GB1128050A GB 1128050 A GB1128050 A GB 1128050A GB 5546265 A GB5546265 A GB 5546265A 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
Application number
GB5546265A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
United States Time Corp
Original Assignee
United States Time Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to DE1965U0011336 priority Critical patent/DE1244069B/en
Application filed by United States Time Corp filed Critical United States Time Corp
Publication of GB1128050A publication Critical patent/GB1128050A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H03BASIC ELECTRONIC CIRCUITRY
    • H03KPULSE TECHNIQUE
    • H03K17/00Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/28Modifications for introducing a time delay before switching
    • GPHYSICS
    • G04HOROLOGY
    • G04CELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C3/00Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
    • G04C3/02Electromechanical 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
    • G04C3/027Electromechanical 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
    • G04C3/0278Electromechanical 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
    • GPHYSICS
    • G04HOROLOGY
    • G04CELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C3/00Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
    • G04C3/04Electromechanical 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
    • G04C3/06Electromechanical 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
    • G04C3/065Electromechanical 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
    • G04C3/069Driving circuits using a single coil for detection and driving purposes
    • GPHYSICS
    • G04HOROLOGY
    • G04CELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C3/00Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
    • G04C3/08Electromechanical 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
    • G04C3/10Electromechanical 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
    • G04C3/108Driving circuits

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.
GB5546265A 1965-01-02 1965-12-31 Improvements in electrical circuitry for timekeeping instruments Expired GB1128050A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1965U0011336 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
GB5546265A 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)

* Cited by examiner, † Cited by third party
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
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
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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
US3403312A (en) 1968-09-24
JPS4811918B1 (en) 1973-04-17
CH1724165A4 (en) 1968-04-11
CH539875A (en) 1973-09-14
DE1244069B (en) 1967-07-06
FR1461286A (en) 1966-12-10

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