Classifications

• • 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
  • G04B17/02—Oscillators acting by gravity, e.g. pendulum swinging in a plane
  • G04B17/025—Composite and multiple pendulums; Synchronisation of mechanical pendulums, e.g. electrical synchronisation G04C3/025; pendulum systems G04C13/028
• • G—PHYSICS
  • G04—HOROLOGY
  • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
  • G04C11/00—Synchronisation of independently-driven clocks
  • G04C11/08—Synchronisation of independently-driven clocks using an electro-magnet or-motor for oscillation correction
  • G04C11/081—Synchronisation of independently-driven clocks using an electro-magnet or-motor for oscillation correction using an electro-magnet
  • G04C11/084—Synchronisation of independently-driven clocks using an electro-magnet or-motor for oscillation correction using an electro-magnet acting on the balance
• • 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
  • G04C3/107—Controlling frequency or amplitude of the oscillating system

Landscapes

• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Electromagnetism (AREA)
• Apparatuses For Generation Of Mechanical Vibrations (AREA)
• Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
• Electromechanical Clocks (AREA)
• Electric Clocks (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=4430463

Family Applications (2)

Family Applications After (1)

Country Status (5)

Cited By (1)

Families Citing this family (14)

Family Cites Families (3)

• 1972
  • 1972-12-13 CH CH1810272D patent/CH1810272A4/xx unknown
  • 1972-12-13 CH CH1810272A patent/CH594201B5/xx not_active IP Right Cessation
• 1973
  • 1973-12-07 GB GB5680173A patent/GB1442414A/en not_active Expired
  • 1973-12-10 FR FR7345876A patent/FR2210787B1/fr not_active Expired
  • 1973-12-10 US US423131A patent/US3877215A/en not_active Expired - Lifetime
  • 1973-12-13 JP JP48139518A patent/JPS4998280A/ja active Pending

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