CH470017A - Electric clock with a tuning fork-like mechanical oscillator - Google Patents

Electric clock with a tuning fork-like mechanical oscillator

Info

Publication number
CH470017A
CH470017A CH748764A CH748764A CH470017A CH 470017 A CH470017 A CH 470017A CH 748764 A CH748764 A CH 748764A CH 748764 A CH748764 A CH 748764A CH 470017 A CH470017 A CH 470017A
Authority
CH
Switzerland
Prior art keywords
tuning fork
mechanical oscillator
electric clock
clock
electric
Prior art date
Application number
CH748764A
Other languages
German (de)
Other versions
CH748764A4 (en
Inventor
Ishikawa Kazuo
Iwaki Koichi
Hirose Masakazu
Fujita Haruhiro
Original Assignee
Jeco Kk
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
Application filed by Jeco Kk filed Critical Jeco Kk
Publication of CH748764A4 publication Critical patent/CH748764A4/xx
Publication of CH470017A publication Critical patent/CH470017A/en

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
    • 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
    • G04C3/102—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 mechanical oscillator or of the coil
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Measuring Volume Flow (AREA)
CH748764A 1963-06-24 1964-06-09 Electric clock with a tuning fork-like mechanical oscillator CH470017A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP3331063 1963-06-24
JP5933163 1963-08-10

Publications (2)

Publication Number Publication Date
CH748764A4 CH748764A4 (en) 1968-11-29
CH470017A true CH470017A (en) 1969-04-30

Family

ID=26371988

Family Applications (1)

Application Number Title Priority Date Filing Date
CH748764A CH470017A (en) 1963-06-24 1964-06-09 Electric clock with a tuning fork-like mechanical oscillator

Country Status (3)

Country Link
CH (1) CH470017A (en)
DE (1) DE1523928B2 (en)
GB (1) GB1049638A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3649858A (en) * 1969-02-19 1972-03-14 Omega Brandt & Freres Sa Louis Transmission, particularly for use in a timepiece, for converting the oscillating movement of a tuning fork into a rotating movement

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2629168C1 (en) * 2013-12-23 2017-08-24 Эта Са Мануфактюр Орложэр Сюис Clock synchronization mechanism
EP2889701B1 (en) * 2013-12-23 2017-07-19 ETA SA Manufacture Horlogère Suisse Clock synchronisation mechanism

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3649858A (en) * 1969-02-19 1972-03-14 Omega Brandt & Freres Sa Louis Transmission, particularly for use in a timepiece, for converting the oscillating movement of a tuning fork into a rotating movement

Also Published As

Publication number Publication date
DE1523928B2 (en) 1970-06-11
CH748764A4 (en) 1968-11-29
DE1523928A1 (en) 1969-12-04
GB1049638A (en) 1966-11-30

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