GB934509A - Drive mechanism for an electrically driven time-keeper - Google Patents

Drive mechanism for an electrically driven time-keeper

Info

Publication number
GB934509A
GB934509A GB2596261A GB2596261A GB934509A GB 934509 A GB934509 A GB 934509A GB 2596261 A GB2596261 A GB 2596261A GB 2596261 A GB2596261 A GB 2596261A GB 934509 A GB934509 A GB 934509A
Authority
GB
United Kingdom
Prior art keywords
wheel
magnetizable
magnet
detent
teeth
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
GB2596261A
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.)
United States Time Corp
Original Assignee
United States Time Corp
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 United States Time Corp filed Critical United States Time Corp
Publication of GB934509A publication Critical patent/GB934509A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B11/00—Click devices; Stop clicks; Clutches
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B11/00—Click devices; Stop clicks; Clutches
    • G04B11/02—Devices allowing the motion of a rotatable part in only one direction
    • G04B11/04—Pawl constructions therefor, e.g. pawl secured to an oscillating member actuating a ratchet
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/02—Back-gearing arrangements between gear train and hands
    • 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
    • G04C3/04—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 balance
    • G04C3/06—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 balance using electromagnetic coupling between electric power source and balance
    • 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
    • G04C3/04—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 balance
    • G04C3/06—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 balance using electromagnetic coupling between electric power source and balance
    • G04C3/061—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 balance using electromagnetic coupling between electric power source and balance the balance controlling contacts and mechanically driving the gear-train

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Electromagnets (AREA)
  • Electromechanical Clocks (AREA)

Abstract

934,509. Clocks and watches. UNITED STATES TIME CORPORATION. July 18, 1961 [July 28, 1960], No. 25962/61. Class 139. Drive mechanism for an electrically driven timepiece comprises an oscillatory balance 60 carrying a driving coil 61 co-operating with at least one fixed magnet and stepping on a toothed wheel 67 of the motionwork, means for arresting this wheel in an indexed position between each step comprising magnetizable teeth on the wheel and a magnetizable detent member 69, 71 connected with the magnet, this detent member being arranged so that a portion 71 thereof establishes a flux path across a portion of the teeth of the toothed wheel, the path being substantially parallel to the axis of the toothed wheel. As shown, two magnets 62, 63 are fixed to a magnetizable bridge 64 which is extended to form the member 69, 71. The magnets may be of circular or oval cross-section. In another embodiment three magnets are used, and the extension of the magnetizable bridge forming the detent is cut out in the bridge by slots so that it can readily be bent into an adjusted position. In a further embodiment, the teeth of the wheel 67 are embraced on opposite sides by a nose-piece of the magnet and by the detent respectively. This nose-piece may be formed on an angularly adjustable ring on the magnet. In another embodiment, one portion of a magnet having multiple poles carries a fixed nose-piece connected with one of the poles and spaced opposite to the detent which is adjustably held by a rivet to the magnetizable bridge, the wheel teeth traversing the gap between these parts. In a modification, the portion 71 of the detent member is divided to form two parts corresponding to the tooth pitch of the wheel 67.
GB2596261A 1960-07-28 1961-07-18 Drive mechanism for an electrically driven time-keeper Expired GB934509A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED33876A DE1219410B (en) 1960-07-28 1960-07-28 Locking device for magnetically locking a toothed, magnetizable ratchet wheel

Publications (1)

Publication Number Publication Date
GB934509A true GB934509A (en) 1963-08-21

Family

ID=7041932

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2596261A Expired GB934509A (en) 1960-07-28 1961-07-18 Drive mechanism for an electrically driven time-keeper

Country Status (3)

Country Link
CH (2) CH835961A4 (en)
DE (1) DE1219410B (en)
GB (1) GB934509A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9746829B2 (en) * 2013-12-23 2017-08-29 Nivarox-Far S.A. Contactless cylinder escapement mechanism for timepieces

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB750004A (en) * 1952-02-20 1956-06-06 Junghans Geb Ag Improvements in or relating to electric clocks
FR1090564A (en) * 1953-09-17 1955-03-31 Hatot Leon Ets Improvements to time mechanisms and similar devices
FR1186973A (en) * 1956-04-17 1959-09-04 Hamilton Watch Co Improvements to magnetic circuits for electric wristwatches
FR1204331A (en) * 1956-12-31 1960-01-25 Hamilton Watch Co Electric watch
CH339582A (en) * 1958-07-14 1959-06-30 Hamilton Watch Co Battery powered electric clock

Also Published As

Publication number Publication date
DE1219410B (en) 1966-06-16
CH371749A (en) 1963-05-15
CH835961A4 (en) 1963-05-15

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