GB1121436A - Electromechanical tuning fork oscillator - Google Patents

Electromechanical tuning fork oscillator

Info

Publication number
GB1121436A
GB1121436A GB4378365A GB4378365A GB1121436A GB 1121436 A GB1121436 A GB 1121436A GB 4378365 A GB4378365 A GB 4378365A GB 4378365 A GB4378365 A GB 4378365A GB 1121436 A GB1121436 A GB 1121436A
Authority
GB
United Kingdom
Prior art keywords
tines
wheel
coils
magnetic
magnetic circuit
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
GB4378365A
Inventor
Cecil Frank Clifford
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.)
Horstmann Clifford Magnetics Ltd
Original Assignee
Horstmann Clifford Magnetics Ltd
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 Horstmann Clifford Magnetics Ltd filed Critical Horstmann Clifford Magnetics Ltd
Priority to GB4378365A priority Critical patent/GB1121436A/en
Priority to US582036A priority patent/US3519856A/en
Priority to CH1475066D priority patent/CH1475066A4/en
Priority to DEH60762A priority patent/DE1265191B/en
Priority to FR79973A priority patent/FR1500465A/en
Publication of GB1121436A publication Critical patent/GB1121436A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Gyroscopes (AREA)

Abstract

1,121,436. Oscillating motors. HORSTMANN CLIFFORD MAGNETICS Ltd. 21 Sept., 1966 [15 Oct., 1965], No. 43783/65. Heading H2A. [Also in Division G3] An electromechanical oscillator comprises a tuning fork 11 forming part of a magnetic circuit having an air gap, whose length varies when the tines of the fork vibrate, and stationary means to polarize the magnetic circuit with stationary coils 17, 18 inductively coupled to the magnetic circuit and forming the input and output coils of an amplifier. As shown, a permanent magnet 19 provides the polarizing magnetic flux and polepieces 15, 16 are fixed to the ends of tines 12, 13. An escape wheel 20 is mounted in the air gap and has angularly displaced wavy magnetic tracks around each side to co-operate with the polepieces and produce rotation of the wheel. In a modification using an escape wheel with a magnetic track on only one face, the wheel is mounted for rotation on an axis perpendicular to the plane of the tines, Fig. 2 (not shown). The coils 17, 18 may be provided on only one tine and may be formed as a single tapped coil connected to the input and output of a single transistor amplifier.
GB4378365A 1965-10-15 1965-10-15 Electromechanical tuning fork oscillator Expired GB1121436A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB4378365A GB1121436A (en) 1965-10-15 1965-10-15 Electromechanical tuning fork oscillator
US582036A US3519856A (en) 1965-10-15 1966-09-26 Electromechanical oscillators
CH1475066D CH1475066A4 (en) 1965-10-15 1966-10-12 Electromechanical oscillator for watch movement
DEH60762A DE1265191B (en) 1965-10-15 1966-10-14 Electromechanical tuning fork oscillator
FR79973A FR1500465A (en) 1965-10-15 1966-10-14 Electromechanical oscillator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4378365A GB1121436A (en) 1965-10-15 1965-10-15 Electromechanical tuning fork oscillator

Publications (1)

Publication Number Publication Date
GB1121436A true GB1121436A (en) 1968-07-24

Family

ID=10430289

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4378365A Expired GB1121436A (en) 1965-10-15 1965-10-15 Electromechanical tuning fork oscillator

Country Status (1)

Country Link
GB (1) GB1121436A (en)

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