GB1281922A - Electromechanical oscillator with isochronous compensation and/or frequency regulation - Google Patents

Electromechanical oscillator with isochronous compensation and/or frequency regulation

Info

Publication number
GB1281922A
GB1281922A GB2211370A GB2211370A GB1281922A GB 1281922 A GB1281922 A GB 1281922A GB 2211370 A GB2211370 A GB 2211370A GB 2211370 A GB2211370 A GB 2211370A GB 1281922 A GB1281922 A GB 1281922A
Authority
GB
United Kingdom
Prior art keywords
magnetic
plate
tine
july
magnet
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
GB2211370A
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 DE2033630A priority Critical patent/DE2033630C3/en
Priority to US52846A priority patent/US3678307A/en
Priority to FR707026369A priority patent/FR2053086B1/fr
Priority to CH1107170D priority patent/CH1107170A4/xx
Priority to CH1107170A priority patent/CH572637B5/xx
Publication of GB1281922A publication Critical patent/GB1281922A/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
    • G04C3/107—Controlling frequency or amplitude of the oscillating system
    • 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
    • G04C3/104—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 pawl or the ratched-wheel
    • G04C3/105—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 pawl or the ratched-wheel pawl and ratched-wheel being magnetically coupled

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)

Abstract

1281922 Electric timepieces HORSTMANN CLIFFORD MAGNETICS Ltd 2 July 1970 [23 July 1969 8 Jan 1970 17 March 1970 7 May 1970] 37076/69 978/70 12723/70 and 22113/70 Heading G3T An electrically maintained oscillating member 11, which may be one tine of a tuning fork, has a non- magnetic bracket 12 supporting bar magnets 13, 14 which co-operate with a wavy magnetic track of a driven rotor 17. Isochronous compensation is provided by a magnetic plate 19 which is adjustably mounted adjacent pole 20 of the magnet 14. Various forms of compensating plate are described Figs. 5, 10 to 14, 16 to 18 (not shown) and a similar plate may be provided adjacent pole 25 of the magnet 13. If the oscillator is a tuning fork, the other tine may be provided with a balance weight or with a magnetic arrangement similar to that shown and cooperating with the wavy track at a diametrically opposed point on the rotor 17. A frequency regulating element may be provided in the form of an adjusting screw (36), Fig. 3 (not shown) of magnetic material and having a frusto-conical end aligned with the pole 25.
GB2211370A 1969-07-23 1969-07-23 Electromechanical oscillator with isochronous compensation and/or frequency regulation Expired GB1281922A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE2033630A DE2033630C3 (en) 1969-07-23 1970-07-07 Electromechanical oscillator with an oscillating element and a rotor set in rotation by this by means of a magnet system
US52846A US3678307A (en) 1969-07-23 1970-07-07 Electromechanical oscillator with isochronous compensation and/or frequency regulation
FR707026369A FR2053086B1 (en) 1969-07-23 1970-07-17
CH1107170D CH1107170A4 (en) 1969-07-23 1970-07-21
CH1107170A CH572637B5 (en) 1969-07-23 1970-07-21

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3707669 1969-07-23

Publications (1)

Publication Number Publication Date
GB1281922A true GB1281922A (en) 1972-07-19

Family

ID=10393534

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2211370A Expired GB1281922A (en) 1969-07-23 1969-07-23 Electromechanical oscillator with isochronous compensation and/or frequency regulation

Country Status (1)

Country Link
GB (1) GB1281922A (en)

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Legal Events

Date Code Title Description
PS Patent sealed
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PLNP Patent lapsed through nonpayment of renewal fees