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GB1361672A - Magnetic rotor drives - Google Patents

Magnetic rotor drives

Info

Publication number
GB1361672A
GB1361672A GB812771A GB812771A GB1361672A GB 1361672 A GB1361672 A GB 1361672A GB 812771 A GB812771 A GB 812771A GB 812771 A GB812771 A GB 812771A GB 1361672 A GB1361672 A GB 1361672A
Authority
GB
United Kingdom
Prior art keywords
rotor
projections
teeth
march
tuning fork
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
GB812771A
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 GB812771A priority Critical patent/GB1361672A/en
Priority to DE2214919A priority patent/DE2214919C3/en
Priority to CH460972D priority patent/CH460972A4/xx
Priority to CH460972A priority patent/CH586927B5/xx
Priority to FR7210972A priority patent/FR2132162B1/fr
Publication of GB1361672A publication Critical patent/GB1361672A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)

Abstract

1361672 Couplings HORSTMANN CLIFFORD MAGNETICS Ltd 13 March 1972 [30 March 1971] 8127/71 Heading H2A [Also in Division G3] A magnetic rotor drive mechanism for converting oscillatory movement into rotational movement comprises a ferromagnetic rotor 1 having peripheral projections 4 and an annular member 2 with magnetic poles or teeth 6. The member 2 is mounted on the free end of a tine of a tuning fork 3 and thus oscillates parallel to the axis X-X of the rotor. The projections 4 are staggered, Fig. 3, to define a circumferential air gap 5, and the numbers of projections 4 and teeth 6 are selected so that additive coupling occurs and the rotor is maintained in motion by oscillation of the member 2. In the embodiment of Fig. 4 (not shown), the member 2 comprises two C-shaped members (2A, 2B) magnetized with opposite polarities by a magnet carried by the tuning fork 3. In the embodiment of Fig. 5 (not shown) both projections 4 and teeth 6 extend perpendicular to the planes of the rotor 1 and member 2.
GB812771A 1971-03-30 1971-03-30 Magnetic rotor drives Expired GB1361672A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB812771A GB1361672A (en) 1971-03-30 1971-03-30 Magnetic rotor drives
DE2214919A DE2214919C3 (en) 1971-03-30 1972-03-27 Electromagnetic drive and locking device
CH460972D CH460972A4 (en) 1971-03-30 1972-03-28
CH460972A CH586927B5 (en) 1971-03-30 1972-03-28
FR7210972A FR2132162B1 (en) 1971-03-30 1972-03-29

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB812771A GB1361672A (en) 1971-03-30 1971-03-30 Magnetic rotor drives

Publications (1)

Publication Number Publication Date
GB1361672A true GB1361672A (en) 1974-07-30

Family

ID=9846283

Family Applications (1)

Application Number Title Priority Date Filing Date
GB812771A Expired GB1361672A (en) 1971-03-30 1971-03-30 Magnetic rotor drives

Country Status (4)

Country Link
CH (2) CH460972A4 (en)
DE (1) DE2214919C3 (en)
FR (1) FR2132162B1 (en)
GB (1) GB1361672A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9465366B2 (en) 2013-12-23 2016-10-11 The Swatch Group Research And Development Ltd Angular speed regulating device for a wheel set in a timepiece movement including a magnetic escapement mechanism
US20170068222A1 (en) * 2014-09-09 2017-03-09 The Swatch Group Research And Development Ltd Magnetic clock escapement and device for regulating the operation of a clock movement

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2889701B1 (en) * 2013-12-23 2017-07-19 ETA SA Manufacture Horlogère Suisse Clock synchronisation mechanism
RU2624713C1 (en) * 2013-12-23 2017-07-05 Ниварокс-Фар С.А. Magnetic or electrostatic resonator
CN105849651B (en) * 2013-12-23 2017-09-29 Eta瑞士钟表制造股份有限公司 Clock and watch lazy-tongs
EP2891929B1 (en) * 2013-12-23 2017-11-22 Nivarox-FAR S.A. Magnetic or electrostatic resonator
JP6166847B2 (en) * 2013-12-23 2017-07-19 ニヴァロックス−ファー ソシエテ アノニム Magnetic and / or electrostatic resonator
EP3757684B1 (en) 2019-06-26 2024-10-16 The Swatch Group Research and Development Ltd Inertial mobile for timepiece resonator with device for magnetic interaction insensitive to external magnetic field
CN110664488B (en) * 2019-10-13 2020-05-26 青岛市中心医院 Driving piece of tumor surgery robot

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR961064A (en) * 1950-05-03
FR987840A (en) * 1948-06-10 1951-08-20 Horstmann Magnetics Ltd Magnetic escape mechanism for horological instruments such as clocks, alarm clocks, etc.
FR1211131A (en) * 1957-10-23 1960-03-14 Landis & Gyr Ag Self-starting synchronous motor, especially small motor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9465366B2 (en) 2013-12-23 2016-10-11 The Swatch Group Research And Development Ltd Angular speed regulating device for a wheel set in a timepiece movement including a magnetic escapement mechanism
US9483026B2 (en) 2013-12-23 2016-11-01 The Swatch Group Research And Development Ltd. Angular speed regulating device for a wheel set in a timepiece movement including a magnetic escapement mechanism
US20170068222A1 (en) * 2014-09-09 2017-03-09 The Swatch Group Research And Development Ltd Magnetic clock escapement and device for regulating the operation of a clock movement
US9891591B2 (en) * 2014-09-09 2018-02-13 The Swatch Group Research And Development Ltd Magnetic clock escapement and device for regulating the operation of a clock movement

Also Published As

Publication number Publication date
DE2214919C3 (en) 1978-05-03
DE2214919A1 (en) 1972-10-12
CH460972A4 (en) 1976-08-31
DE2214919B2 (en) 1977-09-15
FR2132162B1 (en) 1977-04-01
CH586927B5 (en) 1977-04-15
FR2132162A1 (en) 1972-11-17

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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)
PCNP Patent ceased through non-payment of renewal fee