GB1366156A - Timepiece movements - Google Patents

Timepiece movements

Info

Publication number
GB1366156A
GB1366156A GB5557771A GB5557771A GB1366156A GB 1366156 A GB1366156 A GB 1366156A GB 5557771 A GB5557771 A GB 5557771A GB 5557771 A GB5557771 A GB 5557771A GB 1366156 A GB1366156 A GB 1366156A
Authority
GB
United Kingdom
Prior art keywords
timepiece movements
timepiece
movements
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
GB5557771A
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.)
Suwa Seikosha KK
Original Assignee
Suwa Seikosha KK
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 Suwa Seikosha KK filed Critical Suwa Seikosha KK
Publication of GB1366156A publication Critical patent/GB1366156A/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
    • G04C3/04—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
    • G04C3/065—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 gear-train by means of static switches, e.g. transistor circuits
    • G04C3/069—Driving circuits using a single coil for detection and driving purposes

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
GB5557771A 1970-12-04 1971-11-30 Timepiece movements Expired GB1366156A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP12024270 1970-12-04
JP13271470 1970-12-28

Publications (1)

Publication Number Publication Date
GB1366156A true GB1366156A (en) 1974-09-11

Family

ID=26457859

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5557771A Expired GB1366156A (en) 1970-12-04 1971-11-30 Timepiece movements

Country Status (4)

Country Link
US (1) US3780521A (en)
DE (1) DE2160446A1 (en)
FR (1) FR2116520B1 (en)
GB (1) GB1366156A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7324375U (en) * 1973-06-30 1973-09-27 Gebrueder Junghans Gmbh Assembly for electrically driven gear regulators
US4241439A (en) * 1980-01-04 1980-12-23 Timex Corporation Substrate board/carrier frame assembly
US5126720A (en) * 1991-01-17 1992-06-30 Knogo Corporation Method and apparatus for deactivating magnetic targets
US5225807A (en) * 1991-09-16 1993-07-06 Knogo Corporation Method and apparatus for sensitizing and desensitizing targets for electronic article surveillance systems
GB0324439D0 (en) * 2003-10-20 2003-11-19 Levingston Gideon R Minimal thermal variation and temperature compensating non-magnetic balance wheels and methods of production of these and their associated balance springs

Also Published As

Publication number Publication date
FR2116520A1 (en) 1972-07-13
FR2116520B1 (en) 1975-02-07
US3780521A (en) 1973-12-25
DE2160446A1 (en) 1972-12-14

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee