CH535990A - Electromagnetic drive device for a timing mechanism - Google Patents

Electromagnetic drive device for a timing mechanism

Info

Publication number
CH535990A
CH535990A CH259469A CH259469A CH535990A CH 535990 A CH535990 A CH 535990A CH 259469 A CH259469 A CH 259469A CH 259469 A CH259469 A CH 259469A CH 535990 A CH535990 A CH 535990A
Authority
CH
Switzerland
Prior art keywords
drive device
electromagnetic drive
timing mechanism
timing
electromagnetic
Prior art date
Application number
CH259469A
Other languages
French (fr)
Inventor
Frank Clifford Cecil
Original Assignee
Horstmann 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 Magnetics Ltd filed Critical Horstmann Magnetics Ltd
Publication of CH535990A publication Critical patent/CH535990A/en

Links

Classifications

    • GPHYSICS
    • G04HOROLOGY
    • G04CELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C3/00Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
    • G04C3/08Electromechanical 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
    • G04C3/10Electromechanical 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
    • G04C3/101Electromechanical 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
    • G04C3/104Electromechanical 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
    • G04C3/105Electromechanical 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
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00Machine element or mechanism
    • Y10T74/15Intermittent grip type mechanical movement
    • Y10T74/1502Escapement

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
  • Linear Motors (AREA)
  • General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
CH259469A 1968-02-20 1969-02-20 Electromagnetic drive device for a timing mechanism CH535990A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8184/68A GB1189564A (en) 1968-02-20 1968-02-20 Electromechanical Oscillator with Rotary Output.

Publications (1)

Publication Number Publication Date
CH535990A true CH535990A (en) 1972-12-29

Family

ID=9847449

Family Applications (2)

Application Number Title Priority Date Filing Date
CH259469A CH535990A (en) 1968-02-20 1969-02-20 Electromagnetic drive device for a timing mechanism
CH259469D CH259469A4 (en) 1968-02-20 1969-02-20

Family Applications After (1)

Application Number Title Priority Date Filing Date
CH259469D CH259469A4 (en) 1968-02-20 1969-02-20

Country Status (5)

Country Link
US (1) US3532912A (en)
CH (2) CH535990A (en)
DE (1) DE1908568B2 (en)
FR (1) FR2002268A1 (en)
GB (1) GB1189564A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4977371U (en) * 1972-10-27 1974-07-04
DE3544930A1 (en) * 1985-12-19 1987-06-25 Messerschmitt Boelkow Blohm ELECTROMAGNETIC PRECISION ROTARY DRIVE

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2946183A (en) * 1955-06-14 1960-07-26 Horstmann Magnetics Ltd Self-starting magnetic escapement mechanisms
US3148497A (en) * 1961-06-01 1964-09-15 Cecil F Clifford Synchronised magnetic escapement
US3277644A (en) * 1965-06-08 1966-10-11 Jeco Kk Tuning fork timepiece

Also Published As

Publication number Publication date
US3532912A (en) 1970-10-06
GB1189564A (en) 1970-04-29
CH259469A4 (en) 1972-12-29
DE1908568B2 (en) 1974-07-25
FR2002268A1 (en) 1969-10-17
DE1908568A1 (en) 1969-09-18

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