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GB830518A - Electric time piece - Google Patents

Electric time piece

Info

Publication number
GB830518A
GB830518A GB7601/56A GB760156A GB830518A GB 830518 A GB830518 A GB 830518A GB 7601/56 A GB7601/56 A GB 7601/56A GB 760156 A GB760156 A GB 760156A GB 830518 A GB830518 A GB 830518A
Authority
GB
United Kingdom
Prior art keywords
tine
tines
abutment
carried
impulsing means
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
GB7601/56A
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
Publication of GB830518A publication Critical patent/GB830518A/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
    • G04C3/08—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
    • 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
    • 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
    • G04C3/102—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 of the mechanical oscillator or of the coil
    • 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)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Oscillators With Electromechanical Resonators (AREA)

Abstract

830,518. Tuning forks. BULOVA WATCH CO. Inc. March 12, 1956 [March 11, 1955], No. 7601/56. Class 88 (2). [Also in Group XVIII] In an electric timepiece having a tuning fork vibrator one or both tines of the fork has an abutment which limits the amplitude of oscillation of the tines. In the first example, Fig. 1, the abutment 7b is carried by a counterweight 7 on the tine 4, the electromagnetic impulsing means being carried by the other tine 3. The abutments 3a, 4a limit the outward movements of the tines 3, 4. The gear tain is driven by a pawl 20 carried by the tine 4. The abutment 7b or a second abutment could be carried by the cylindrical magnet of the impulsing means. Electromagnetic impulsing means may be associated with each tine and the tines may be inclined inwardly, Fig. 11. In another example, Fig. 13, the cylindrical magnets of the impulsing means have abutments 507b. Reference has been directed by the Comptroller to Specifications 746,465 and 761,609.
GB7601/56A 1955-03-11 1956-03-12 Electric time piece Expired GB830518A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH830518X 1955-03-11

Publications (1)

Publication Number Publication Date
GB830518A true GB830518A (en) 1960-03-16

Family

ID=4540267

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7601/56A Expired GB830518A (en) 1955-03-11 1956-03-12 Electric time piece

Country Status (6)

Country Link
CA (1) CA578729A (en)
CH (1) CH336025A (en)
DE (1) DE1038487B (en)
FR (1) FR1172522A (en)
GB (1) GB830518A (en)
IT (1) IT550130A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH447956A (en) * 1965-11-30 1967-05-31 Centre Electron Horloger Impact protection device of a mechanical resonator for an electro-mechanical timepiece

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1911062A (en) * 1927-03-17 1933-05-23 Conrad Frank Electric clock
DE696032C (en) * 1931-11-21 1940-09-09 Georg Heinrich Schieferstein
US2260847A (en) * 1938-05-27 1941-10-28 Warren Telechron Co Vibratory frequency standard
CH213932A (en) * 1939-09-18 1941-03-31 Russenberger Max Mechanical vibrator with control device for limiting a parameter of the vibration.
FR972360A (en) * 1941-02-14 1951-01-29 Hatot Leon Ets Advanced electromagnetic clocks
FR1090564A (en) * 1953-09-17 1955-03-31 Hatot Leon Ets Improvements to time mechanisms and similar devices

Also Published As

Publication number Publication date
CA578729A (en) 1959-06-30
DE1038487B (en) 1958-09-04
FR1172522A (en) 1959-02-11
CH336025A (en) 1959-01-31
IT550130A (en)

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