FR704970A - Contact device for pendulum maintenance electric clocks - Google Patents

Contact device for pendulum maintenance electric clocks

Info

Publication number
FR704970A
FR704970A FR704970DA FR704970A FR 704970 A FR704970 A FR 704970A FR 704970D A FR704970D A FR 704970DA FR 704970 A FR704970 A FR 704970A
Authority
FR
France
Prior art keywords
pendulum
contact device
maintenance electric
electric clocks
clocks
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
Other languages
French (fr)
Inventor
Vve Lambert
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
Application granted granted Critical
Publication of FR704970A publication Critical patent/FR704970A/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
    • G04C3/02—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 pendulum
    • G04C3/027—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 pendulum using electromagnetic coupling between electric power source and pendulum

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • General Physics & Mathematics (AREA)
FR704970D 1930-01-25 1930-01-25 Contact device for pendulum maintenance electric clocks Expired FR704970A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR704970T 1930-01-25

Publications (1)

Publication Number Publication Date
FR704970A true FR704970A (en) 1931-05-29

Family

ID=9066928

Family Applications (1)

Application Number Title Priority Date Filing Date
FR704970D Expired FR704970A (en) 1930-01-25 1930-01-25 Contact device for pendulum maintenance electric clocks

Country Status (1)

Country Link
FR (1) FR704970A (en)

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