GB955367A - Improvements in electric timekeepers - Google Patents

Improvements in electric timekeepers

Info

Publication number
GB955367A
GB955367A GB866362A GB866362A GB955367A GB 955367 A GB955367 A GB 955367A GB 866362 A GB866362 A GB 866362A GB 866362 A GB866362 A GB 866362A GB 955367 A GB955367 A GB 955367A
Authority
GB
United Kingdom
Prior art keywords
moved
ratchet
wheel
pawl
click
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
GB866362A
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 GB955367A publication Critical patent/GB955367A/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
    • G04B27/00—Mechanical devices for setting the time indicating means
    • 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
    • G04B27/00—Mechanical devices for setting the time indicating means
    • G04B27/004—Mechanical devices for setting the time indicating means having several simultaneous functions, e.g. stopping or starting the clockwork or the hands
    • 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
    • G04C3/08—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 mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically
    • G04C3/10—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 mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically driven by electromagnetic means
    • G04C3/101—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 mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically driven by electromagnetic means constructional details

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromechanical Clocks (AREA)

Abstract

955,367. Electric timepieces. KABUSHIKI KAISHA SUWA SEIKOSHA. March 6, 1962 [March 6, 1961], No. 8663/62. Heading G3T. A timepiece comprises an electrically maintained oscillator e.g. a tuning fork 21, which carries a pawl 17a, 17b to drive the index ratchet wheel 15 the pinion 16 of which drives the going train 13, 14, 11, 12, 9, 10, 7, 8 to the seconds, minutes and hour hands S, M and T respectively. A click 18a, 18b prevents reverse rotation of the ratchet 15. When the hand-setting stem 2 is moved to the hand-setting position the wheel 5 is moved through the members 3, 4 into engagement with the minute wheel 6 and a pivoted lever 19 is rocked clockwise so that pins 19a, 19b carried thereby move the pawl 17a, 17b and the click 18a, 18b away from the ratchet 15 and a detent 20, 20a also carried the lever 19 is moved into arresting engagement with the gear 11.
GB866362A 1961-03-06 1962-03-06 Improvements in electric timekeepers Expired GB955367A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP759661 1961-03-06

Publications (1)

Publication Number Publication Date
GB955367A true GB955367A (en) 1964-04-15

Family

ID=11670169

Family Applications (1)

Application Number Title Priority Date Filing Date
GB866362A Expired GB955367A (en) 1961-03-06 1962-03-06 Improvements in electric timekeepers

Country Status (2)

Country Link
CH (2) CH380657A (en)
GB (1) GB955367A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3262259A (en) * 1965-02-10 1966-07-26 Bulova Watch Co Inc Time setting mechanism for electronic timepieces

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3262259A (en) * 1965-02-10 1966-07-26 Bulova Watch Co Inc Time setting mechanism for electronic timepieces
DE1300868B (en) * 1965-02-10 1970-01-15 Bulova Watch Co Inc Device for setting the hands of an electric clock

Also Published As

Publication number Publication date
CH261062A4 (en) 1964-04-15
CH380657A (en) 1964-04-15

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