GB1190098A - Synchronous Electric Motor-Driven Clockwork Movement having a Reserve Spring Drive Means - Google Patents

Synchronous Electric Motor-Driven Clockwork Movement having a Reserve Spring Drive Means

Info

Publication number
GB1190098A
GB1190098A GB3450567A GB3450567A GB1190098A GB 1190098 A GB1190098 A GB 1190098A GB 3450567 A GB3450567 A GB 3450567A GB 3450567 A GB3450567 A GB 3450567A GB 1190098 A GB1190098 A GB 1190098A
Authority
GB
United Kingdom
Prior art keywords
motor
spring
barrel
shaft
energized
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
GB3450567A
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.)
SPENDIA ATEL
Original Assignee
SPENDIA ATEL
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 SPENDIA ATEL filed Critical SPENDIA ATEL
Publication of GB1190098A publication Critical patent/GB1190098A/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
    • G04B13/00—Gearwork
    • G04B13/007—Gearwork with differential work
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C15/00—Clocks driven by synchronous motors
    • G04C15/0054—Clocks driven by synchronous motors with power-reserve

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Electromechanical Clocks (AREA)
  • Retarders (AREA)
  • Structure Of Transmissions (AREA)

Abstract

1,190,098. Electric clocks. ATELIERS "SPENDIA". July 27, 1967 [July 27, 1966], No.34505/67. Heading G3T. A clockwork movement e.g. for a timepiece, has an output shaft 3 drivable either by a synchronous electric motor 7 or by a reserve spring system 5 controlled by an escapement 9 which is released when the motor 7 is de-energized, and halted when the motor 7 is energized. The motor 7 is effective when energized to drive the shaft 3 and to wind up the spring system, and means is provided whereby the shaft 3 will continue to be driven by the motor 7 after the spring system is fully wound. The reserve drive spring is mounted in a barrel 12 and is wound by rotation of the barrel by the motor 7 via a gear train 6. The barrel 12 is freely rotatable on the shaft 3 and carries gearwheels 24 forming satellites of an epicyclic gearing and each having two sets of teeth meshing respectively with a sun-wheel 23 rigid with the shaft 3 and with a sun-wheel 22 rotatable on the latter. The sun-wheel 22 is coupled via a gear train 8 and the escapement 9 to a balance wheel 52, which, when the motor 7 is energized, is prevented from moving by a braking device 71, 72 actuated by an electromagnet 73. Thus when the motor 7 is energized the sun-wheel 22 is held stationary and the satellites 24 revolve therearound with the barrel 12, the tooth ratios of the epicyclic gearing being so selected that the sun-wheel 23, rigid with the shaft 3 to which the inner end of the spring is secured, rotates in the same direction as, but more slowly than, the barrel 12 whereby the spring becomes wound. When the spring is fully wound the barrel slides relatively to a friction clamp holding the outer end of the spring. When the motor 7 is de-energized the barrel 12 is held stationary together with the friction clamp holding the outer end of the spring, whilst the inner end of the latter drives the shaft 3 under the control of the escapement 9.
GB3450567A 1966-07-27 1967-07-27 Synchronous Electric Motor-Driven Clockwork Movement having a Reserve Spring Drive Means Expired GB1190098A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR71132A FR1533203A (en) 1966-07-27 1966-07-27 Synchronous clockwork movement with power reserve

Publications (1)

Publication Number Publication Date
GB1190098A true GB1190098A (en) 1970-04-29

Family

ID=8614283

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3450567A Expired GB1190098A (en) 1966-07-27 1967-07-27 Synchronous Electric Motor-Driven Clockwork Movement having a Reserve Spring Drive Means

Country Status (3)

Country Link
DE (1) DE1673750B2 (en)
FR (1) FR1533203A (en)
GB (1) GB1190098A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2515186A1 (en) * 2011-04-20 2012-10-24 Cartier Création Studio S.A. Gear-train for timepiece

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2515186A1 (en) * 2011-04-20 2012-10-24 Cartier Création Studio S.A. Gear-train for timepiece
JP2012225931A (en) * 2011-04-20 2012-11-15 Cartier Creation Studio Sa Going train for timepiece

Also Published As

Publication number Publication date
DE1673750B2 (en) 1971-08-19
FR1533203A (en) 1968-07-19
DE1673750A1 (en) 1971-02-25

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Legal Events

Date Code Title Description
PS Patent sealed
PLE Entries relating assignments, transmissions, licences in the register of patents
PCNP Patent ceased through non-payment of renewal fee