GB1271784A - Improvements relating to electric timepieces - Google Patents

Improvements relating to electric timepieces

Info

Publication number
GB1271784A
GB1271784A GB1229970A GB1229970A GB1271784A GB 1271784 A GB1271784 A GB 1271784A GB 1229970 A GB1229970 A GB 1229970A GB 1229970 A GB1229970 A GB 1229970A GB 1271784 A GB1271784 A GB 1271784A
Authority
GB
United Kingdom
Prior art keywords
amplitude
electrostrictive
fork
voltage
pick
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
GB1229970A
Other languages
English (en)
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.)
Suwa Seikosha KK
Original Assignee
Suwa Seikosha KK
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 Suwa Seikosha KK filed Critical Suwa Seikosha KK
Publication of GB1271784A publication Critical patent/GB1271784A/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
    • G04C3/12—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 piezoelectric means; driven by magneto-strictive means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Measurement Of Predetermined Time Intervals (AREA)
GB1229970A 1969-03-14 1970-03-13 Improvements relating to electric timepieces Expired GB1271784A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1903169A JPS4818873B1 (enrdf_load_stackoverflow) 1969-03-14 1969-03-14

Publications (1)

Publication Number Publication Date
GB1271784A true GB1271784A (en) 1972-04-26

Family

ID=11988068

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1229970A Expired GB1271784A (en) 1969-03-14 1970-03-13 Improvements relating to electric timepieces

Country Status (4)

Country Link
JP (1) JPS4818873B1 (enrdf_load_stackoverflow)
CH (2) CH551651A (enrdf_load_stackoverflow)
DE (1) DE2011367C3 (enrdf_load_stackoverflow)
GB (1) GB1271784A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5975026A (ja) * 1982-10-20 1984-04-27 三洋電機株式会社 セントラルクリ−ナ−

Also Published As

Publication number Publication date
CH551651A (enrdf_load_stackoverflow) 1974-07-15
DE2011367B2 (de) 1973-02-01
JPS4818873B1 (enrdf_load_stackoverflow) 1973-06-08
CH378670A4 (enrdf_load_stackoverflow) 1973-12-14
DE2011367C3 (de) 1978-04-27
DE2011367A1 (de) 1970-09-17

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee