GB797851A - Tuning fork oscillators - Google Patents

Tuning fork oscillators

Info

Publication number
GB797851A
GB797851A GB5064/56A GB506456A GB797851A GB 797851 A GB797851 A GB 797851A GB 5064/56 A GB5064/56 A GB 5064/56A GB 506456 A GB506456 A GB 506456A GB 797851 A GB797851 A GB 797851A
Authority
GB
United Kingdom
Prior art keywords
tines
base
fork
tuning fork
secured
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
GB5064/56A
Inventor
Max Hetzel
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 GB797851A publication Critical patent/GB797851A/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
    • 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
    • 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
    • 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
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10G—REPRESENTATION OF MUSIC; RECORDING MUSIC IN NOTATION FORM; ACCESSORIES FOR MUSIC OR MUSICAL INSTRUMENTS NOT OTHERWISE PROVIDED FOR, e.g. SUPPORTS
    • G10G7/00—Other auxiliary devices or accessories, e.g. conductors' batons or separate holders for resin or strings
    • G10G7/02—Tuning forks or like devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/24—Constructional features of resonators of material which is not piezoelectric, electrostrictive, or magnetostrictive
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/15—Intermittent grip type mechanical movement
    • Y10T74/1526—Oscillation or reciprocation to intermittent unidirectional motion
    • Y10T74/1553—Lever actuator
    • Y10T74/1555—Rotary driven element

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Electromechanical Clocks (AREA)
  • Electric Clocks (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)

Abstract

797,851. Clocks and watches. BULOVA WATCH CO., Inc. Feb. 17, 1956, No. 5064/56. Class 139 '[Also in Group XXXVIII] To reduce the longitudinal component of the vibration of an electrically maintained tuning fork in a time-piece, magnets 3 carried by the tines are mounted so that, when at rest, their centres of gravity C and the fixed ends of the tines are substantially equally spaced from the axis of symmetry X-X as in Fig. 2a. The tines themselves may be bent as in Fig. 4 and, as shown, the centres of gravity G may be more closely spaced than the fixed ends of the tines. The fork is resiliently secured to a base 11, Fig. 2b by means of pins 6 engaging a plate 9 and the base 11. The plate 9 is secured to the base by a screw 10. The fork may be rigidly secured to the base by pins 6' Fig. 3 and a screw 10<SP>1</SP>.
GB5064/56A 1953-06-19 1956-02-17 Tuning fork oscillators Expired GB797851A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH761609X 1953-06-19
CH818678X 1955-02-16

Publications (1)

Publication Number Publication Date
GB797851A true GB797851A (en) 1958-07-09

Family

ID=31979231

Family Applications (4)

Application Number Title Priority Date Filing Date
GB17606/54A Expired GB761609A (en) 1953-06-19 1954-06-15 Electronic device for the operation of a time piece movement
GB4908/56A Expired GB818678A (en) 1953-06-19 1956-02-16 Electric timepieces
GB5064/56A Expired GB797851A (en) 1953-06-19 1956-02-17 Tuning fork oscillators
GB18418/58D Expired GB854196A (en) 1953-06-19 1958-06-09 Improvements in or relating to electronically-controlled timepieces

Family Applications Before (2)

Application Number Title Priority Date Filing Date
GB17606/54A Expired GB761609A (en) 1953-06-19 1954-06-15 Electronic device for the operation of a time piece movement
GB4908/56A Expired GB818678A (en) 1953-06-19 1956-02-16 Electric timepieces

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB18418/58D Expired GB854196A (en) 1953-06-19 1958-06-09 Improvements in or relating to electronically-controlled timepieces

Country Status (8)

Country Link
US (2) US2949727A (en)
CA (3) CA609691A (en)
CH (4) CH312290A (en)
DE (4) DE971059C (en)
FR (4) FR1102373A (en)
GB (4) GB761609A (en)
IT (4) IT591162A (en)
NL (2) NL6410473A (en)

Families Citing this family (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT547049A (en) * 1953-06-19
US2962643A (en) * 1955-04-26 1960-11-29 Omega Brandt & Freres Sa Louis Time-piece
DE1117054B (en) * 1956-04-14 1961-11-09 Kieninger & Obergfell Time-keeping electrical devices, in particular electrical clocks
IT563090A (en) * 1956-07-30
DE1043963B (en) * 1957-02-15 1958-11-13 Kieninger & Obergfell Rate regulator for a clock, preferably for an electric clock
US3118098A (en) * 1957-06-07 1964-01-14 Jahresuhren Fabrik G M B H Oscillating drive electromagnetic motor system
US2957116A (en) * 1957-06-14 1960-10-18 Hurd Lock & Mfg Company Mechano-electric clocks
DE1217883B (en) * 1960-04-06 1966-05-26 Baehni & Co S A Electric clock with a pulse generator and a drive element for the gear train, using a magnetostrictive oscillator
US3122047A (en) * 1960-04-25 1964-02-25 Gen Electric Tuning fork
US3079748A (en) * 1960-06-27 1963-03-05 Sylvania Electric Prod Illuminated electronic time piece
US3202847A (en) * 1960-07-28 1965-08-24 Marcellus S Merrill Tunable vibration pick-up device
DE1279557B (en) * 1961-01-19 1968-10-03 Bulova Watch Co Inc Tuning fork as a time-determining link for an electric clock
US3184981A (en) * 1961-01-19 1965-05-25 Bulova Watch Co Inc Electronically-controlled timepiece and motion transformer therefor
US3187082A (en) * 1961-02-01 1965-06-01 Cool Fin Electronics Corp Heat dissipating electrical shield
DE1673740B2 (en) * 1961-05-24 1972-05-10 Fabriques Movado, La Chaux-de-Fonds (Schweiz) ELECTROMECHANICAL VIBRATION SYSTEM, IN PARTICULAR FOR AN ELECTRIC CLOCK
US3106124A (en) * 1961-07-21 1963-10-08 Melpar Inc Tuning forks
GB1017765A (en) * 1961-10-21 1966-01-19 Nihon Denki Tokei Company Ltd Magnetic escapement
DE1235824B (en) * 1962-01-05 1967-03-02 Georges Ceppi Device for driving a time-keeping electrical device
DE1236423B (en) * 1962-01-05 1967-03-09 Georges Ceppi Clock oscillator
US3243951A (en) * 1962-03-28 1966-04-05 Toko Radio Coil Kenkyusho Kk Flexure vibration type electrical vibrator and transistor oscillator utilizing the same
DE1190046B (en) * 1962-06-29 1965-04-01 Diehl Fa Transistor switching amplifier, especially for use in self-controlling clock drives
DE1274038B (en) * 1962-07-12 1968-07-25 Nihon Denki Tokei Co Ltd Tuning fork watch
CH405171A (en) * 1962-08-11 1965-09-15 Lavet Marius Jean Time apparatus and method of manufacturing this apparatus
NL296548A (en) * 1962-08-15
DE1267619B (en) * 1962-08-22 1968-05-02 Manuf Des Montres Universal Torsional oscillator for electronic clocks
US3187575A (en) * 1963-01-07 1965-06-08 Bulova Watch Co Inc Resonant bolometer
CH393198A (en) * 1963-01-22 1965-02-15 Foerderung Forschung Gmbh Portable electric clock
DE1209961B (en) * 1963-02-20 1966-01-27 Junghans Geb Ag Circuit arrangement for the electrically driven oscillator of a time-keeping device
DE1291689B (en) * 1963-03-16 1969-03-27 United States Time Corp Time-keeping device
DE1226046B (en) * 1963-05-08 1966-09-29 Bulova Watch Co Inc Mechanical oscillator with magnetic control and drive elements
DE1235823B (en) * 1963-07-16 1967-03-02 Bulova Watch Co Inc Improvements to mechanical transmission devices for electrically controlled clocks
CH638164A4 (en) * 1964-05-15 1966-09-30 Baehni & Co S A Electronic watch
DE1523934A1 (en) * 1965-06-08 1970-03-26 Junghans Gmbh Geb Tuning fork kept vibrating by electromagnetic means
CH483045A (en) * 1965-08-12 1969-08-29 Movado Montres Device for stabilizing the oscillation frequency of a mechanical oscillator for an apparatus intended for measuring time
US3410081A (en) * 1965-10-04 1968-11-12 Gen Time Corp Drive system for tuning fork timepiece
DE1287519B (en) * 1966-04-22 1969-01-16 Kienzle Uhrenfabriken Gmbh Device for converting the vibrations of a tuning fork into a progressive rotary motion
CH771466A4 (en) * 1966-05-27 1969-01-31
US3754152A (en) * 1971-11-03 1973-08-21 Bulova Watch Co Inc Incrementally adjustable capacitor unit for tuning a crystal-controlled oscillator
WO1982000879A1 (en) * 1979-02-12 1982-03-18 R Scholl Displacement transducer
EP2466401B1 (en) 2010-12-15 2013-08-14 Asgalium Unitec SA Magnetic resonator for mechanical timepiece
EP2574994A1 (en) 2011-09-29 2013-04-03 Asgalium Unitec SA Resonator with tuning fork for mechanical timepiece movement
CH707471B1 (en) 2013-08-05 2014-07-31 Rd Engineering Rudolf Dinger controller system for mechanical watch.
EP2942673A1 (en) 2014-05-05 2015-11-11 Asgalium Unitec S.A. Mechanical oscillator with tuning fork for clock movement
EP3206091B1 (en) * 2015-02-03 2019-01-23 ETA SA Manufacture Horlogère Suisse Isochronous clock resonator

Family Cites Families (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB601712A (en) * 1945-02-26 1948-05-11 Hillyard Thomas Stott Improvements relating to apparatus for time measurement
US405471A (en) * 1889-06-18 Apparatus for generating electricity
FR579298A (en) * 1924-10-13
CH76114A (en) * 1916-03-24 1917-11-01 Edmond Degallier Electric chronoscope
DE384925C (en) * 1921-08-11 1923-11-27 Gaston Beauvais Device for converting a vibratory movement into a circular movement
US1560056A (en) * 1923-05-01 1925-11-03 Western Electric Co Source of waves of constant frequency
GB351639A (en) * 1929-05-03 1931-07-02 Marconi Wireless Telegraph Co Improvements in or relating to oscillation generating apparatus
US1935215A (en) * 1930-04-19 1933-11-14 Central Commercial Co Musical instrument
AT133325B (en) * 1931-03-06 1933-05-10 Johann Sampl Electric counter, especially clock.
US1995624A (en) * 1932-02-20 1935-03-26 Lorenz C Ag Means for generating electric oscillations
US2034787A (en) * 1932-07-23 1936-03-24 Leeds & Northrup Co System for generating alternating current
FR767359A (en) * 1933-04-10 1934-07-17 Synchronous time device
US2036917A (en) * 1934-03-06 1936-04-07 Favre-Bulle Maurice Philippe Electric timepiece
US2235317A (en) * 1937-06-17 1941-03-18 Thomas B Gibbs Constant frequency generator
DE836470C (en) * 1948-10-02 1952-04-15 Siemens Ag Frequency generator for electric stop watches
US2628343A (en) * 1950-02-11 1953-02-10 Varo Mfg Co Inc Mechanical vibrating device
BE505739A (en) * 1950-09-12
US2644920A (en) * 1951-09-07 1953-07-07 Rohr Aircraft Corp Instrument for measuring magnetic permeability
US2680160A (en) * 1951-09-15 1954-06-01 Bell Telephone Labor Inc Bias circuit for transistor amplifiers
DE921948C (en) * 1951-12-16 1955-01-07 August Dr Karolus Electrically excited tuning fork
US2665546A (en) * 1952-04-29 1954-01-12 Hamilton Watch Co Balance bar for watches
US2756406A (en) * 1953-02-09 1956-07-24 California Research Corp Vibration detector
IT547049A (en) * 1953-06-19
FR1090564A (en) * 1953-09-17 1955-03-31 Hatot Leon Ets Improvements to time mechanisms and similar devices
GB746465A (en) * 1953-09-17 1956-03-14 Hatot Leon Ets Improved electromagnetic impulse device for driving clocks
FR1143675A (en) * 1954-11-06 1957-10-03 Philips Nv Mechanical oscillation maintenance device
FR1134560A (en) * 1955-08-23 1957-04-15 Circular balance with electrically maintained oscillations
AT189648B (en) * 1955-09-17 1957-04-25 Landis & Gyr Ag Tongue oscillator

Also Published As

Publication number Publication date
DE971059C (en) 1958-12-04
GB854196A (en) 1960-11-16
CH334217A (en) 1958-11-15
FR74802E (en) 1961-03-03
CA577869A (en) 1959-06-16
US2949727A (en) 1960-08-23
CA609691A (en) 1960-11-29
CH333403A (en) 1958-10-15
DE1030263B (en) 1958-05-14
IT558253A (en)
CA576917A (en) 1959-06-02
DE1023417B (en) 1958-01-23
GB761609A (en) 1956-11-14
FR70710E (en) 1959-07-10
IT591162A (en)
GB818678A (en) 1959-08-19
DE1124433B (en) 1962-02-22
CH353311A (en) 1961-03-31
IT547049A (en)
NL228637A (en)
NL6410473A (en) 1964-10-26
FR1102373A (en) 1955-10-19
IT517679A (en)
FR70323E (en) 1959-04-06
US2971323A (en) 1961-02-14
CH312290A (en) 1955-12-31

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