GB1317513A - Electric timepieces - Google Patents

Electric timepieces

Info

Publication number
GB1317513A
GB1317513A GB3170171A GB3170171A GB1317513A GB 1317513 A GB1317513 A GB 1317513A GB 3170171 A GB3170171 A GB 3170171A GB 3170171 A GB3170171 A GB 3170171A GB 1317513 A GB1317513 A GB 1317513A
Authority
GB
United Kingdom
Prior art keywords
balance
period
july
drive coil
circuit
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
GB3170171A
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.)
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 GB1317513A publication Critical patent/GB1317513A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
    • 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
    • G04C3/067—Driving circuits with distinct detecting and driving coils

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Stepping Motors (AREA)
  • Electromechanical Clocks (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
GB3170171A 1970-07-07 1971-07-06 Electric timepieces Expired GB1317513A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5895270 1970-07-07

Publications (1)

Publication Number Publication Date
GB1317513A true GB1317513A (en) 1973-05-23

Family

ID=13099152

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3170171A Expired GB1317513A (en) 1970-07-07 1971-07-06 Electric timepieces

Country Status (6)

Country Link
US (1) US3740943A (enrdf_load_stackoverflow)
DE (1) DE2131190A1 (enrdf_load_stackoverflow)
ES (1) ES392767A1 (enrdf_load_stackoverflow)
FR (1) FR2098213B1 (enrdf_load_stackoverflow)
GB (1) GB1317513A (enrdf_load_stackoverflow)
NL (1) NL7107830A (enrdf_load_stackoverflow)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH1201768A4 (enrdf_load_stackoverflow) * 1968-08-08 1970-12-15

Also Published As

Publication number Publication date
US3740943A (en) 1973-06-26
FR2098213A1 (enrdf_load_stackoverflow) 1972-03-10
DE2131190A1 (de) 1972-01-13
ES392767A1 (es) 1974-05-01
FR2098213B1 (enrdf_load_stackoverflow) 1975-06-06
NL7107830A (enrdf_load_stackoverflow) 1972-01-11

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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