GB1327043A - Electromechanical oscillators with rotary output - Google Patents

Electromechanical oscillators with rotary output

Info

Publication number
GB1327043A
GB1327043A GB1327043DA GB1327043A GB 1327043 A GB1327043 A GB 1327043A GB 1327043D A GB1327043D A GB 1327043DA GB 1327043 A GB1327043 A GB 1327043A
Authority
GB
United Kingdom
Prior art keywords
rotor
magnetic
oscillating
track
discs
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
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
Publication of GB1327043A publication Critical patent/GB1327043A/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
    • G04C3/104—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
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C5/00—Electric or magnetic means for converting oscillatory to rotary motion in time-pieces, i.e. electric or magnetic escapements
    • G04C5/005—Magnetic or electromagnetic means
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/06—Means for converting reciprocating motion into rotary motion or vice versa
    • H02K7/065—Electromechanical oscillators; Vibrating magnetic drives

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)

Abstract

1327043 Clocks HORSTMANN CLIFFORD MAGNETICS Ltd 7 April 1971 [12 Jan 1970] 1340/70 Heading G3T In a driving arrangement for a clock having an electrically maintained member which is magnetically coupled to a rotor via a wavy track and oscillates parallel to the rotor axis, the magnetic reluctance of the median portion of the magnetic track is increased as compared with the remainder of the track, in order to improve the self-starting and isochronous performance. Figs.2, 3 show a rotor formed of two toothed discs 27, 28 which are of magnetic material and are mounted on a spindle 30 with one disc offset with respect to the other. The oscillating magnetic member is in the form of a ring 31 and has teeth 32 cooperating with the magnetic track formed by the disc teeth. Further embodiments are described in which the toothed rotor discs are spaced apart by a disc magnet (49), Fig.4 (not shown) and cooperate with an oscillating member (50) of high permeability, or in which the rotor consists of two star-shaped magnets (54, 55) Fig. 5 (not shown) sandwiched between retaining members (58, 59). The rotor may also be formed by a crinkled disc (80) Fig. 7 (not shown) whose periphery is provided with a central groove (84) and which co-operates with an oscillating magnet (82). The wavy magnetic track may also be formed on the oscillating member and Fig. 6, (not shown), shows an annular oscillating element (65) which includes a ring magnet (69) and has the wavy track formed on its inner surface which surrounds the rotor (76). Other embodiments are described using a rotor comprising two crinkled discs (150, 151) Fig. 9 (not shown) or spoked discs (157, 158) Fig.10 (not shown) spaced apart on a common spindle (152) and co-operating with an annular magnetic oscillating member (153).
GB1327043D 1970-01-12 1970-01-12 Electromechanical oscillators with rotary output Expired GB1327043A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB134070 1970-01-12

Publications (1)

Publication Number Publication Date
GB1327043A true GB1327043A (en) 1973-08-15

Family

ID=9720300

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1327043D Expired GB1327043A (en) 1970-01-12 1970-01-12 Electromechanical oscillators with rotary output

Country Status (2)

Country Link
FR (1) FR2075383A5 (en)
GB (1) GB1327043A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6087895B2 (en) 2013-12-23 2017-03-01 ザ・スウォッチ・グループ・リサーチ・アンド・ディベロップメント・リミテッド Angular velocity adjustment device for wheelset in watch movement including magnetic escapement mechanism
EP3208667A1 (en) 2016-02-18 2017-08-23 The Swatch Group Research and Development Ltd Magnetic escapement mobile for timepiece

Also Published As

Publication number Publication date
FR2075383A5 (en) 1971-10-08
DE2101174A1 (en) 1971-11-18
DE2101174B2 (en) 1972-08-24

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Legal Events

Date Code Title Description
CSNS Application of which complete specification have been accepted and published, but patent is not sealed