GB1354630A - Device for adjusting the hands of a tuning fork timepiece - Google Patents

Device for adjusting the hands of a tuning fork timepiece

Info

Publication number
GB1354630A
GB1354630A GB5855572A GB5855572A GB1354630A GB 1354630 A GB1354630 A GB 1354630A GB 5855572 A GB5855572 A GB 5855572A GB 5855572 A GB5855572 A GB 5855572A GB 1354630 A GB1354630 A GB 1354630A
Authority
GB
United Kingdom
Prior art keywords
tuning fork
stem
lever
spring
gear train
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
GB5855572A
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.)
Seiko Instruments Inc
Original Assignee
Seiko Instruments Inc
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 Seiko Instruments Inc filed Critical Seiko Instruments Inc
Publication of GB1354630A publication Critical patent/GB1354630A/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
    • G04B27/004—Mechanical devices for setting the time indicating means having several simultaneous functions, e.g. stopping or starting the clockwork or the hands

Landscapes

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

Abstract

1354630 Setting electric watcher DAINI SEIKOSHA KK 19 Dec 1972 [27 Dec 1971] 58555/72 Heading G3T Upon pulling out a setting stem 16b of a tuning fork watch, the electricity supply is disconnected, thus stopping the oscillation of the tuning fork 2, and the gear train between the tuning fork and the seconds hand is prevented from moving; upon pushing in the stem the supply is reconnected, the gear train is released and an impulse is imported to the tuning fork to restart oscillation. In normal use magnetic blocks 2a, 2b on the tuning fork are driven by a coil 6 of a circuit block 4 which is powered by a battery 15 via a switch comprising a pin 21 and a spring 20. When the stem 16b is pulled out, a setting lever (not shown) rotates a lever 18 so that an insulating portion 18b moves spring 20 away from pin 21 thus opening the switch. At the same time the movement of the end 16a of the stem permits a lever 22 to rotate under the action of a spring 24 to engage a third wheel 12 and prevent rotation thereof. Wheel 12 is part of a gear train comprising an index wheel 8, driven by a rod 7 fixed to the tuning fork, and wheels 10, 11, 12 and 13, the last of which drives the seconds hand. When the stem is pushed in, a spring 25 mounted on lever 22 impacts on a projection 2c of the tuning fork which thus immediately begins to execute full oscillations.
GB5855572A 1971-12-27 1972-12-19 Device for adjusting the hands of a tuning fork timepiece Expired GB1354630A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP47001558A JPS4871680A (en) 1971-12-27 1971-12-27

Publications (1)

Publication Number Publication Date
GB1354630A true GB1354630A (en) 1974-06-05

Family

ID=11504842

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5855572A Expired GB1354630A (en) 1971-12-27 1972-12-19 Device for adjusting the hands of a tuning fork timepiece

Country Status (4)

Country Link
US (1) US3849977A (en)
JP (1) JPS4871680A (en)
CH (1) CH589316B5 (en)
GB (1) GB1354630A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH592328B5 (en) * 1974-04-08 1977-10-31 Suisse Horlogerie
JPS5619743Y2 (en) * 1974-12-26 1981-05-11
US4055945A (en) * 1975-12-15 1977-11-01 Timex Corporation Frequency adjustment means for an electronic timepiece
JP3535524B2 (en) * 1996-09-18 2004-06-07 ランゲ ウーレン ゲゼルシヤフト ミツト ベシユレンクテル ハフツング Apparatus for setting the minute hand of a timer with at least a minute hand and a second hand
TWI716318B (en) * 2020-04-30 2021-01-11 巨擘科技股份有限公司 Smart watch device with power saving function

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2865163A (en) * 1952-04-15 1958-12-23 Elgin Nat Watch Co Electrically-powered time device
US2900786A (en) * 1956-05-31 1959-08-25 Bulova Watch Co Inc Timepiece arrangement
FR1405215A (en) * 1962-07-10 1965-07-09 Lip Sa Advanced electric watch
US3441820A (en) * 1967-08-18 1969-04-29 Gen Time Corp Timing system having electromechanical oscillator with fail-safe improvement
US3526088A (en) * 1968-06-21 1970-09-01 Timex Corp Watch setting crown mechanism

Also Published As

Publication number Publication date
CH589316B5 (en) 1977-06-30
CH1891072A4 (en) 1974-07-31
JPS4871680A (en) 1973-09-27
US3849977A (en) 1974-11-26

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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