CH549829A - - Google Patents

Info

Publication number
CH549829A
CH549829A CH1170070A CH1170070A CH549829A CH 549829 A CH549829 A CH 549829A CH 1170070 A CH1170070 A CH 1170070A CH 1170070 A CH1170070 A CH 1170070A CH 549829 A CH549829 A CH 549829A
Authority
CH
Switzerland
Application number
CH1170070A
Other versions
CH1170070A4 (en
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 filed Critical
Priority to CH1170070A priority Critical patent/CH549829A/xx
Priority to DE19712137087 priority patent/DE2137087B2/en
Priority to US00166060A priority patent/US3797224A/en
Publication of CH1170070A4 publication Critical patent/CH1170070A4/xx
Publication of CH549829A publication Critical patent/CH549829A/xx

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
    • 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
    • G04B17/20—Compensation of mechanisms for stabilising frequency
    • G04B17/22—Compensation of mechanisms for stabilising frequency for the effect of variations of temperature
    • 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)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Electric Clocks (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
CH1170070A 1970-08-04 1970-08-04 CH549829A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CH1170070A CH549829A (en) 1970-08-04 1970-08-04
DE19712137087 DE2137087B2 (en) 1970-08-04 1971-07-24 DEVICE FOR COMPENSATION OF THE THERMAL FREQUENCY RANGE OF A MECHANICAL OSCILLATOR FOR TIME MEASUREMENT
US00166060A US3797224A (en) 1970-08-04 1971-07-26 Compensation of the thermal frequency drift of a mechanical oscillator for timekeeping

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1170070A CH549829A (en) 1970-08-04 1970-08-04

Publications (2)

Publication Number Publication Date
CH1170070A4 CH1170070A4 (en) 1973-12-28
CH549829A true CH549829A (en) 1974-05-31

Family

ID=4376023

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1170070A CH549829A (en) 1970-08-04 1970-08-04

Country Status (3)

Country Link
US (1) US3797224A (en)
CH (1) CH549829A (en)
DE (1) DE2137087B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4193008A (en) * 1977-04-18 1980-03-11 Murata Manufacturing Co., Ltd. Tuning fork formed of rolled invariable elasticity material

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3207900A (en) * 1961-11-29 1965-09-21 Fitzgerald John Vincent Radiation responsive dynamic mechanical system
CH409791A (en) * 1964-02-18 1965-11-30 Centre Electron Horloger Electronic watch
US3310757A (en) * 1966-09-15 1967-03-21 Bulova Watch Co Inc Decoupling mounting plates for tuning fork oscillators
US3496391A (en) * 1967-12-07 1970-02-17 Clarence Hunter Mcshan Resonant device

Also Published As

Publication number Publication date
US3797224A (en) 1974-03-19
CH1170070A4 (en) 1973-12-28
DE2137087B2 (en) 1972-06-22
DE2137087A1 (en) 1972-02-10

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