GB1349974A - Electric timepiece with chronograph indicator - Google Patents

Electric timepiece with chronograph indicator

Info

Publication number
GB1349974A
GB1349974A GB3467671A GB3467671A GB1349974A GB 1349974 A GB1349974 A GB 1349974A GB 3467671 A GB3467671 A GB 3467671A GB 3467671 A GB3467671 A GB 3467671A GB 1349974 A GB1349974 A GB 1349974A
Authority
GB
United Kingdom
Prior art keywords
drive
chronograph
pick
coil
balance wheel
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
GB3467671A
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.)
Ebauches SA
Original Assignee
Ebauches SA
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 Ebauches SA filed Critical Ebauches SA
Publication of GB1349974A publication Critical patent/GB1349974A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F8/00—Apparatus for measuring unknown time intervals by electromechanical means
    • G04F8/003—Apparatus for measuring unknown time intervals by electromechanical means using continuously running driving 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
    • G04C3/04—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
    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F8/00—Apparatus for measuring unknown time intervals by electromechanical means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Measurement Of Unknown Time Intervals (AREA)
  • Electromechanical Clocks (AREA)
  • Electric Clocks (AREA)
GB3467671A 1970-08-07 1971-07-23 Electric timepiece with chronograph indicator Expired GB1349974A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1190570A CH533870A (fr) 1970-08-07 1970-08-07 Pièce d'horlogerie électrique à chronographe

Publications (1)

Publication Number Publication Date
GB1349974A true GB1349974A (en) 1974-04-10

Family

ID=4378029

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3467671A Expired GB1349974A (en) 1970-08-07 1971-07-23 Electric timepiece with chronograph indicator

Country Status (4)

Country Link
US (1) US3726081A (enrdf_load_stackoverflow)
CH (2) CH1190570A4 (enrdf_load_stackoverflow)
FR (1) FR2102131B1 (enrdf_load_stackoverflow)
GB (1) GB1349974A (enrdf_load_stackoverflow)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4850071U (enrdf_load_stackoverflow) * 1971-10-12 1973-06-30
CH634713B (fr) * 1981-07-09 Umberto Maglioli Piece d'horlogerie electronique.
CH658567GA3 (enrdf_load_stackoverflow) * 1984-03-28 1986-11-28
USD286382S (en) 1984-04-11 1986-10-28 Citizen Watch Co., Ltd. Watch
USD314518S (en) 1988-01-25 1991-02-12 Casio Computer Co., Ltd. Wrist watch
DE10036037A1 (de) * 2000-07-24 2002-02-07 Mannesmann Vdo Ag Zeigerinstrument

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2166683A (en) * 1937-06-07 1939-07-18 John H Grayson Time clock controlled automatic mechanism
US2969636A (en) * 1957-09-23 1961-01-31 Batori Comp Company Inc Chronometer
US3331200A (en) * 1965-10-18 1967-07-18 Donald W Byron Instrument for checking engine efficiency

Also Published As

Publication number Publication date
FR2102131B1 (enrdf_load_stackoverflow) 1975-02-21
FR2102131A1 (enrdf_load_stackoverflow) 1972-04-07
DE2138411A1 (de) 1972-02-10
US3726081A (en) 1973-04-10
CH1190570A4 (enrdf_load_stackoverflow) 1972-08-15
DE2138411B2 (de) 1972-08-03
CH533870A (fr) 1972-08-15

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees