GB1270037A - A device for sustaining the oscillation of a balance for a timepiece - Google Patents

A device for sustaining the oscillation of a balance for a timepiece

Info

Publication number
GB1270037A
GB1270037A GB3094869A GB3094869A GB1270037A GB 1270037 A GB1270037 A GB 1270037A GB 3094869 A GB3094869 A GB 3094869A GB 3094869 A GB3094869 A GB 3094869A GB 1270037 A GB1270037 A GB 1270037A
Authority
GB
United Kingdom
Prior art keywords
june
transistor
base
timepiece
balance
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
GB3094869A
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.)
Tissot SA
Original Assignee
Fabrique dHorlogerie CHS Tissot et Fils 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 Fabrique dHorlogerie CHS Tissot et Fils SA filed Critical Fabrique dHorlogerie CHS Tissot et Fils SA
Publication of GB1270037A publication Critical patent/GB1270037A/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
    • G04C3/067—Driving circuits with distinct detecting and driving coils
    • 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)
  • Electric Clocks (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Control Of Stepping Motors (AREA)

Abstract

1,270,037. Electric timepieces. FABRIQUE D'HORLOGERIE CHS TISSOT & FILS S.A. June 18, 1969 [June 19, 1968], No. 30948/69. Heading G3T. An electromagnetically maintained oscillating balance for a timepiece comprises a magnetic flux generator, e.g. comprising magnets 2, 3, 4, fast with the regulator 1 and an astable multivibrator comprising two complementary transistors T 1 , T 2 and a pick-up and drive coil R L , cooperating with the generator, and an RC circuit C p , R p or C s , R s is connected to the base of each transistor, the capacitor C p or C s being in series with the base and with the collector of the other transistor, whereby the characteristic repetition period of the multi-vibrator and the duration of the current pulses passing through the coil R L remain substantially constant throughout a given operating temperature range.
GB3094869A 1968-06-19 1969-06-18 A device for sustaining the oscillation of a balance for a timepiece Expired GB1270037A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH912268A CH506121A (en) 1968-06-19 1968-06-19 Maintenance device of an oscillating regulator for a timepiece

Publications (1)

Publication Number Publication Date
GB1270037A true GB1270037A (en) 1972-04-12

Family

ID=4348569

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3094869A Expired GB1270037A (en) 1968-06-19 1969-06-18 A device for sustaining the oscillation of a balance for a timepiece

Country Status (4)

Country Link
CH (2) CH506121A (en)
DE (1) DE1931507A1 (en)
FR (1) FR2011213B1 (en)
GB (1) GB1270037A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4011714A (en) * 1974-03-19 1977-03-15 Rhythm Watch Co. Ltd. Device for maintaining the oscillation of a balance for a timepiece

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1256386A (en) * 1960-05-06 1961-03-17 Manuf D Horlogerie Charvet Del Device for the maintenance of a pendulum balance

Also Published As

Publication number Publication date
DE1931507A1 (en) 1970-01-02
CH912268A4 (en) 1970-12-15
FR2011213A1 (en) 1970-02-27
CH506121A (en) 1970-12-15
FR2011213B1 (en) 1973-11-16

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