FR2212578A1 - - Google Patents

Info

Publication number
FR2212578A1
FR2212578A1 FR7347222A FR7347222A FR2212578A1 FR 2212578 A1 FR2212578 A1 FR 2212578A1 FR 7347222 A FR7347222 A FR 7347222A FR 7347222 A FR7347222 A FR 7347222A FR 2212578 A1 FR2212578 A1 FR 2212578A1
Authority
FR
France
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.)
Granted
Application number
FR7347222A
Other languages
French (fr)
Other versions
FR2212578B1 (cs
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.)
Ebauches SA
Original Assignee
Ebauches SA
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 Ebauches SA filed Critical Ebauches SA
Publication of FR2212578A1 publication Critical patent/FR2212578A1/fr
Application granted granted Critical
Publication of FR2212578B1 publication Critical patent/FR2212578B1/fr
Expired legal-status Critical Current

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
    • G04C3/04—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
    • G04C3/061—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 contacts and mechanically driving the gear-train
    • 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
    • G04B17/04—Oscillators acting by spring tension
    • G04B17/06—Oscillators with hairsprings, e.g. balance
    • G04B17/063—Balance construction

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Electromechanical Clocks (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Measurement Of Unknown Time Intervals (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
FR7347222A 1972-12-28 1973-12-27 Expired FR2212578B1 (cs)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1898672A CH577211B5 (cs) 1972-12-28 1972-12-28

Publications (2)

Publication Number Publication Date
FR2212578A1 true FR2212578A1 (cs) 1974-07-26
FR2212578B1 FR2212578B1 (cs) 1977-09-09

Family

ID=4436577

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7347222A Expired FR2212578B1 (cs) 1972-12-28 1973-12-27

Country Status (6)

Country Link
US (1) US3859784A (cs)
JP (1) JPS4998673A (cs)
CH (2) CH577211B5 (cs)
DE (1) DE2363946B2 (cs)
FR (1) FR2212578B1 (cs)
GB (1) GB1427048A (cs)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2847818A (en) * 1952-02-20 1958-08-19 Junghans Helmut Electromagnetically operated clocks
US3002335A (en) * 1958-09-08 1961-10-03 Marvin I Glass Toy clock
US3059413A (en) * 1959-01-02 1962-10-23 Hamilton Watch Co Pallet fork contacting and indexing means for electric watch
JPS5025188Y1 (cs) * 1970-12-28 1975-07-29

Also Published As

Publication number Publication date
DE2363946A1 (de) 1974-07-18
FR2212578B1 (cs) 1977-09-09
GB1427048A (en) 1976-03-03
JPS4998673A (cs) 1974-09-18
CH577211B5 (cs) 1976-06-30
CH1898672A4 (cs) 1976-01-30
DE2363946B2 (de) 1975-08-21
US3859784A (en) 1975-01-14

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Legal Events

Date Code Title Description
ST Notification of lapse