GB1154349A - Improvements relating to Torsion Oscillating Devices for Watch Movements - Google Patents

Improvements relating to Torsion Oscillating Devices for Watch Movements

Info

Publication number
GB1154349A
GB1154349A GB39889/66A GB3988966A GB1154349A GB 1154349 A GB1154349 A GB 1154349A GB 39889/66 A GB39889/66 A GB 39889/66A GB 3988966 A GB3988966 A GB 3988966A GB 1154349 A GB1154349 A GB 1154349A
Authority
GB
United Kingdom
Prior art keywords
blades
arms
support
torsion
oscillate
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
GB39889/66A
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.)
Portescap SA
Original Assignee
Portescap 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 Portescap SA filed Critical Portescap SA
Publication of GB1154349A publication Critical patent/GB1154349A/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
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/04—Oscillators acting by spring tension
    • G04B17/10—Oscillators with torsion strips or springs acting in the same manner as torsion strips, e.g. weight oscillating in a horizontal plane
    • 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
    • G04C3/066—Constructional details, e.g. disposition of 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
    • G04C3/08—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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electric Clocks (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Electromechanical Clocks (AREA)

Abstract

1,154,349. Electric timepieces. PORTESCAP, LE PORTE-ECHAPPEMENT UNIVERSEL S.A. Sept. 6, 1966 [Oct. 7, 1965], No.39889/66. Heading G3T. A torsion oscillator for an electronic timepiece comprises two parallel torsion blades 1, 2 fastened rigidly at their ends to a common support 3 which is fixed to a plate 4 of the movement by pillars 5, 6, each blade bearing at its centre an arm 7, 7<SP>1</SP> provided at one end with an electromagnetic vibration sustaining device 8, 8<SP>1</SP> and at the other end with a counterweight 9, 9<SP>1</SP>. The arms oscillate in antiphase so that no vibrations are transmitted to the timepiece movement. The central portions 1a, 2a of the blades are twisted through 90 degrees and the ends of the blades are welded to arms 3c, 3d of the support 3 or the blades may be made integrally with the support. Each device 8, 8<SP>1</SP> comprises a permanent magnet mounted on its respective arm and co-operating with fixed control and drive coils connected to a conventional transistor circuit to maintain the oscillation of the arms. In a modification, two flat blades are fastened to a support in the shape of a rectangular frame and the arms attached to the blades oscillate in a common plane.
GB39889/66A 1965-10-07 1966-09-06 Improvements relating to Torsion Oscillating Devices for Watch Movements Expired GB1154349A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1385765A CH461377A (en) 1965-10-07 1965-10-07 Torsional oscillating device for electronic clockwork movement

Publications (1)

Publication Number Publication Date
GB1154349A true GB1154349A (en) 1969-06-04

Family

ID=4395928

Family Applications (1)

Application Number Title Priority Date Filing Date
GB39889/66A Expired GB1154349A (en) 1965-10-07 1966-09-06 Improvements relating to Torsion Oscillating Devices for Watch Movements

Country Status (4)

Country Link
US (1) US3428879A (en)
CH (1) CH461377A (en)
FR (1) FR1486631A (en)
GB (1) GB1154349A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3534468A (en) * 1968-08-05 1970-10-20 Motorola Inc Method of making an electromechanical frequency responsive device with armature supported on torsion band
US4044283A (en) * 1975-10-22 1977-08-23 Schiller Industries, Inc. Electromechanical resonator

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH607261A4 (en) * 1961-05-24 1966-01-31
US3351788A (en) * 1966-02-01 1967-11-07 Movado Montres Apparatus for mechanically converting the oscillating movement of an electro-mechanical oscillator

Also Published As

Publication number Publication date
CH1385765A4 (en) 1968-03-29
CH461377A (en) 1968-03-29
US3428879A (en) 1969-02-18
FR1486631A (en) 1967-06-30

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