GB921948A - Improvements in or relating to timepieces - Google Patents

Improvements in or relating to timepieces

Info

Publication number
GB921948A
GB921948A GB1547761A GB1547761A GB921948A GB 921948 A GB921948 A GB 921948A GB 1547761 A GB1547761 A GB 1547761A GB 1547761 A GB1547761 A GB 1547761A GB 921948 A GB921948 A GB 921948A
Authority
GB
United Kingdom
Prior art keywords
april
balance
timepieces
relating
astable
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
GB1547761A
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.)
SSIH Management Services SA
Original Assignee
SSIH Management Services SA
Societe Suisse pour lIindustrie Horlogere Management Services SA
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 SSIH Management Services SA, Societe Suisse pour lIindustrie Horlogere Management Services SA filed Critical SSIH Management Services SA
Publication of GB921948A publication Critical patent/GB921948A/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
    • G04C3/04—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 balance
    • G04C3/06—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 balance using electromagnetic coupling between electric power source and balance
    • G04C3/065—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 balance using electromagnetic coupling between electric power source and balance the balance controlling gear-train by means of static switches, e.g. transistor circuits
    • G04C3/069—Driving circuits using a single coil for detection and driving purposes

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
GB1547761A 1960-04-28 1961-04-28 Improvements in or relating to timepieces Expired GB921948A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH481860A CH382664A (fr) 1960-04-28 1960-04-28 Dispositif d'entretien électromagnétique du mouvement oscillant de l'organe régulateur d'une pièce d'horlogerie

Publications (1)

Publication Number Publication Date
GB921948A true GB921948A (en) 1963-03-27

Family

ID=4283067

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1547761A Expired GB921948A (en) 1960-04-28 1961-04-28 Improvements in or relating to timepieces

Country Status (4)

Country Link
BE (1) BE602734A (enrdf_load_stackoverflow)
CH (2) CH481860A4 (enrdf_load_stackoverflow)
FR (1) FR1286393A (enrdf_load_stackoverflow)
GB (1) GB921948A (enrdf_load_stackoverflow)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3365635A (en) * 1963-10-17 1968-01-23 Smith & Sons Ltd S Oscillating motor for horological instruments
US3403312A (en) * 1965-01-02 1968-09-24 United States Time Corp Circuitry for timekeeping instruments
US3407344A (en) * 1964-09-26 1968-10-22 Shigeru Kakubari Electronic timekeeper
US3430119A (en) * 1965-07-22 1969-02-25 Smiths Industries Ltd Oscillating motor for horological instruments
US3509437A (en) * 1966-09-08 1970-04-28 Citizen Watch Co Ltd Timepiece drive
US3539888A (en) * 1968-07-24 1970-11-10 Aeroprojects Inc Automatic frequency control circuit for use with ultrasonic systems

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1274999B (de) * 1964-10-15 1968-08-08 Siemens Elektrogeraete Gmbh Kontaktlos gesteuerte elektrische Uhr mit Selbstanlauf
DE2009612B2 (de) * 1970-03-02 1972-06-29 Forschungsgesellschaft für Uhren- und Feingeräte-Technik, 7000 Stuttgart Schwingungssystem mit elektronischer steuerung fuer uhren
JPS4725077U (enrdf_load_stackoverflow) * 1971-04-12 1972-11-21

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3365635A (en) * 1963-10-17 1968-01-23 Smith & Sons Ltd S Oscillating motor for horological instruments
US3407344A (en) * 1964-09-26 1968-10-22 Shigeru Kakubari Electronic timekeeper
US3403312A (en) * 1965-01-02 1968-09-24 United States Time Corp Circuitry for timekeeping instruments
US3430119A (en) * 1965-07-22 1969-02-25 Smiths Industries Ltd Oscillating motor for horological instruments
US3509437A (en) * 1966-09-08 1970-04-28 Citizen Watch Co Ltd Timepiece drive
US3539888A (en) * 1968-07-24 1970-11-10 Aeroprojects Inc Automatic frequency control circuit for use with ultrasonic systems

Also Published As

Publication number Publication date
CH481860A4 (enrdf_load_stackoverflow) 1964-06-15
DE1448348A1 (de) 1969-06-12
DE1448348B2 (de) 1970-08-13
FR1286393A (fr) 1962-03-02
CH382664A (fr) 1964-06-15
BE602734A (fr) 1961-08-16

Similar Documents

Publication Publication Date Title
GB921948A (en) Improvements in or relating to timepieces
FR2427727A1 (fr) Moteur pour montre electronique
GB972298A (en) Improvements in or relating to timepieces
GB1073624A (en) Improvements in and relating to transistor-driven speed regulators in electronic timepieces
GB900461A (en) Electromagnetic device for maintaining the oscillatory movement of a timepiece balance wheel
GB929591A (en) Driving system for time-pieces
GB1059171A (en) Improvements in a control system for an electronic time-piece
GB1299060A (en) An electronic driving circuit for a timepiece
GB1086306A (en) Improvements relating to electrical timepieces
GB1180130A (en) Electric Timepiece.
GB1210762A (en) Improvements in or relating to an oscillatory system for a timing device
GB1318414A (en) Electronic horological movement
GB1380464A (en) Quartz controlled chronometer
GB1343340A (en) Horological instrument
GB862586A (en) Time-piece balance assembly
FR1182885A (fr) Aimant permanent comportant de part et d'autre d'une ligne donnée des pôles magnétiques de polarité opposée
GB963153A (en) Improvements in or relating to a driving mechanism for the mechanical oscillator of an electric clock
GB1391213A (en) Tuning fork vibrator
GB929566A (en) Improvements in or relating to mechanical oscillators for timepieces
GB926419A (en) An electronically energised oscillating system for time pieces
GB825856A (en) Time-piece
GB1380329A (en) Balance wheel for a timepiece
FR2224920A1 (en) Electromagnetic watch movement - permanent magnet and core-free coil drive escapement
GB922431A (en) Improvements in or relating to time-piece mechanisms
GB1392049A (en) Circuit for the drive of a clockwork mechanism regulator-oscillat or of a timepiece