FR1404942A - Electromagnetically controlled device for measuring time - Google Patents

Electromagnetically controlled device for measuring time

Info

Publication number
FR1404942A
FR1404942A FR985353A FR985353A FR1404942A FR 1404942 A FR1404942 A FR 1404942A FR 985353 A FR985353 A FR 985353A FR 985353 A FR985353 A FR 985353A FR 1404942 A FR1404942 A FR 1404942A
Authority
FR
France
Prior art keywords
controlled device
measuring time
electromagnetically controlled
electromagnetically
measuring
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
FR985353A
Other languages
French (fr)
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.)
Fratelli Borletti SpA
Borletti SpA
Original Assignee
Fratelli Borletti SpA
Borletti SpA
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 Fratelli Borletti SpA, Borletti SpA filed Critical Fratelli Borletti SpA
Priority to FR985353A priority Critical patent/FR1404942A/en
Application granted granted Critical
Publication of FR1404942A publication Critical patent/FR1404942A/en
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
    • G04C3/065—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 gear-train by means of static switches, e.g. transistor circuits
    • G04C3/067—Driving circuits with distinct detecting and driving coils

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • General Physics & Mathematics (AREA)
FR985353A 1964-08-17 1964-08-17 Electromagnetically controlled device for measuring time Expired FR1404942A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR985353A FR1404942A (en) 1964-08-17 1964-08-17 Electromagnetically controlled device for measuring time

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR985353A FR1404942A (en) 1964-08-17 1964-08-17 Electromagnetically controlled device for measuring time

Publications (1)

Publication Number Publication Date
FR1404942A true FR1404942A (en) 1965-07-02

Family

ID=8836756

Family Applications (1)

Application Number Title Priority Date Filing Date
FR985353A Expired FR1404942A (en) 1964-08-17 1964-08-17 Electromagnetically controlled device for measuring time

Country Status (1)

Country Link
FR (1) FR1404942A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3452537A (en) * 1966-12-19 1969-07-01 Tokyo Clock Mfg Self-starting and drive means for a timekeeping device
US3452536A (en) * 1967-02-13 1969-07-01 Hugh A Preller Chart drive

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3452537A (en) * 1966-12-19 1969-07-01 Tokyo Clock Mfg Self-starting and drive means for a timekeeping device
US3452536A (en) * 1967-02-13 1969-07-01 Hugh A Preller Chart drive

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