GB1380464A - Quartz controlled chronometer - Google Patents

Quartz controlled chronometer

Info

Publication number
GB1380464A
GB1380464A GB1399772A GB1399772A GB1380464A GB 1380464 A GB1380464 A GB 1380464A GB 1399772 A GB1399772 A GB 1399772A GB 1399772 A GB1399772 A GB 1399772A GB 1380464 A GB1380464 A GB 1380464A
Authority
GB
United Kingdom
Prior art keywords
coil
input
rotor
transistors
march
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
GB1399772A
Other languages
English (en)
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.)
Timex Group USA Inc
Original Assignee
Timex 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 Timex Corp filed Critical Timex Corp
Publication of GB1380464A publication Critical patent/GB1380464A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C13/00—Driving mechanisms for clocks by primary clocks
    • G04C13/08—Secondary clocks actuated intermittently
    • G04C13/10—Secondary clocks actuated intermittently by electromechanical step advancing mechanisms
    • 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
    • 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
    • G04C3/14—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means incorporating a stepping motor

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
GB1399772A 1971-03-24 1972-03-24 Quartz controlled chronometer Expired GB1380464A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US12772471A 1971-03-24 1971-03-24

Publications (1)

Publication Number Publication Date
GB1380464A true GB1380464A (en) 1975-01-15

Family

ID=22431613

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1399772A Expired GB1380464A (en) 1971-03-24 1972-03-24 Quartz controlled chronometer

Country Status (10)

Country Link
US (1) US3766729A (en:Method)
AU (1) AU466534B2 (en:Method)
BE (1) BE781185A (en:Method)
CA (1) CA994459A (en:Method)
CH (2) CH552846A (en:Method)
FR (1) FR2130693B1 (en:Method)
GB (1) GB1380464A (en:Method)
IT (1) IT952387B (en:Method)
NL (1) NL7203885A (en:Method)
SE (1) SE7203776L (en:Method)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4266291A (en) * 1977-12-27 1981-05-05 Iida Sankyo Co., Ltd. Electromagnetic swing device
US5479153A (en) * 1993-10-26 1995-12-26 Hankscraft Motors, Inc. Method and apparatus for displaying an object
KR20100040971A (ko) * 2007-08-10 2010-04-21 오스람 게젤샤프트 미트 베쉬랭크터 하프퉁 적어도 하나의 ｌｅｄ에 대한 광원 및 상기 광원에 대한 무선 신호를 생성하기 위한 송신기

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1144903A (en) * 1965-07-22 1969-03-12 Smiths Industries Ltd Improvements in or relating to horological instruments
FR1517115A (fr) * 1966-02-10 1968-03-15 Suisse Horlogerie Montre électronique
US3509437A (en) * 1966-09-08 1970-04-28 Citizen Watch Co Ltd Timepiece drive
US3597915A (en) * 1968-11-05 1971-08-10 Susumu Aizawa Driving device of electronic watch
US3568017A (en) * 1969-08-04 1971-03-02 Voumard Machines Co Sa Push-pull oscillator for sustaining the oscillations of a resonator
US3555810A (en) * 1969-12-29 1971-01-19 Timex Corp Horological indexing device

Also Published As

Publication number Publication date
CH552846A (en:Method) 1974-08-15
BE781185A (fr) 1972-07-17
IT952387B (it) 1973-07-20
AU466534B2 (en) 1973-09-27
CH445372A4 (en:Method) 1974-02-15
AU4034872A (en) 1973-09-27
CA994459A (en) 1976-08-03
US3766729A (en) 1973-10-23
DE2213699A1 (de) 1972-09-28
SE7203776L (en:Method) 1972-09-25
NL7203885A (en:Method) 1972-09-26
FR2130693A1 (en:Method) 1972-11-03
DE2213699B2 (de) 1975-10-30
FR2130693B1 (en:Method) 1976-10-29

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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