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FR523399A - Improvement in electro-magnetic clocks - Google Patents

Improvement in electro-magnetic clocks

Info

Publication number
FR523399A
FR523399A FR523399A FR523399DA FR523399A FR 523399 A FR523399 A FR 523399A FR 523399 A FR523399 A FR 523399A FR 523399D A FR523399D A FR 523399DA FR 523399 A FR523399 A FR 523399A
Authority
FR
France
Prior art keywords
electro
improvement
clocks
magnetic
magnetic 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
FR523399A
Other languages
French (fr)
Inventor
Charles-Jean-Victor Fery
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.)
CHARLES-JEAN-VICTOR FERY
Original Assignee
CHARLES-JEAN-VICTOR FERY
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 CHARLES-JEAN-VICTOR FERY filed Critical CHARLES-JEAN-VICTOR FERY
Application granted granted Critical
Publication of FR523399A publication Critical patent/FR523399A/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)
FR523399A 1920-01-08 1920-01-08 Improvement in electro-magnetic clocks Expired FR523399A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR523399T 1920-01-08

Publications (1)

Publication Number Publication Date
FR523399A true FR523399A (en) 1921-08-17

Family

ID=8918574

Family Applications (1)

Application Number Title Priority Date Filing Date
FR523399A Expired FR523399A (en) 1920-01-08 1920-01-08 Improvement in electro-magnetic clocks

Country Status (1)

Country Link
FR (1) FR523399A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2810083A (en) * 1953-08-31 1957-10-15 Haft And Sons Inc Electromagnetic oscillating motors

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2810083A (en) * 1953-08-31 1957-10-15 Haft And Sons Inc Electromagnetic oscillating motors

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