FR1218410A - Perfectionnements aux montres ou horloges - Google Patents

Perfectionnements aux montres ou horloges

Info

Publication number
FR1218410A
FR1218410A FR731735A FR731735A FR1218410A FR 1218410 A FR1218410 A FR 1218410A FR 731735 A FR731735 A FR 731735A FR 731735 A FR731735 A FR 731735A FR 1218410 A FR1218410 A FR 1218410A
Authority
FR
France
Prior art keywords
watches
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
FR731735A
Other languages
English (en)
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.)
Bulova Watch Co Inc
Original Assignee
Bulova Watch Co Inc
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 Bulova Watch Co Inc filed Critical Bulova Watch Co Inc
Application granted granted Critical
Publication of FR1218410A publication Critical patent/FR1218410A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
    • H03H9/24—Constructional features of resonators of material which is not piezoelectric, electrostrictive, or magnetostrictive
    • 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)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
FR731735A 1956-10-11 1957-02-14 Perfectionnements aux montres ou horloges Expired FR1218410A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US615329A US3070951A (en) 1956-10-11 1956-10-11 Frequency-adjustable tuning fork type vibrator for an electrically energized timepiece

Publications (1)

Publication Number Publication Date
FR1218410A true FR1218410A (fr) 1960-05-10

Family

ID=24464902

Family Applications (1)

Application Number Title Priority Date Filing Date
FR731735A Expired FR1218410A (fr) 1956-10-11 1957-02-14 Perfectionnements aux montres ou horloges

Country Status (6)

Country Link
US (1) US3070951A (enrdf_load_stackoverflow)
CA (1) CA577140A (enrdf_load_stackoverflow)
DE (1) DE1049314B (enrdf_load_stackoverflow)
FR (1) FR1218410A (enrdf_load_stackoverflow)
GB (1) GB828357A (enrdf_load_stackoverflow)
IT (1) IT567576A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1254089B (de) * 1962-10-31 1967-11-09 United States Time Corp Antriebsanordnung zum Antreiben eines Zahnrades eines zeithaltenden Geraetes

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3202848A (en) * 1961-01-19 1965-08-24 Bulova Watch Co Inc Tuning fork frequency adjuster
US3322016A (en) * 1963-06-24 1967-05-30 Jeco Kk Added mass type circular tuning fork
US6617576B1 (en) 2001-03-02 2003-09-09 Monitor Instruments Company, Llc Cycloidal mass spectrometer with time of flight characteristics and associated method
US6624410B1 (en) 2002-02-25 2003-09-23 Monitor Instruments Company, Llc Cycloidal mass spectrometer
US6815674B1 (en) 2003-06-03 2004-11-09 Monitor Instruments Company, Llc Mass spectrometer and related ionizer and methods
CN115838112B (zh) * 2023-02-21 2023-05-02 中铁建工集团第二建设有限公司 一种建筑吊装装置及其使用方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1560056A (en) * 1923-05-01 1925-11-03 Western Electric Co Source of waves of constant frequency
FR767359A (fr) * 1933-04-10 1934-07-17 Appareil horaire synchrone
US2015410A (en) * 1934-02-05 1935-09-24 Continental Oil Co Vibrating system
US2036917A (en) * 1934-03-06 1936-04-07 Favre-Bulle Maurice Philippe Electric timepiece
US2411444A (en) * 1942-07-13 1946-11-19 Maistre Marcel Balance wheel
US2433160A (en) * 1945-09-06 1947-12-23 Honeywell Regulator Co Tuning fork construction

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1254089B (de) * 1962-10-31 1967-11-09 United States Time Corp Antriebsanordnung zum Antreiben eines Zahnrades eines zeithaltenden Geraetes

Also Published As

Publication number Publication date
DE1049314B (enrdf_load_stackoverflow)
GB828357A (en) 1960-02-17
CA577140A (en) 1959-06-02
IT567576A (enrdf_load_stackoverflow)
US3070951A (en) 1963-01-01

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