US3766730A - Universal watch - Google Patents

Universal watch Download PDF

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Publication number
US3766730A
US3766730A US00145354A US3766730DA US3766730A US 3766730 A US3766730 A US 3766730A US 00145354 A US00145354 A US 00145354A US 3766730D A US3766730D A US 3766730DA US 3766730 A US3766730 A US 3766730A
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US
United States
Prior art keywords
hour
hour wheel
auxiliary
wheel
watch
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 - Lifetime
Application number
US00145354A
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English (en)
Inventor
M Kishida
Y Miwa
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
Application granted granted Critical
Publication of US3766730A publication Critical patent/US3766730A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • G04B27/005—Mechanical devices for setting the time indicating means stepwise or on determined values

Definitions

  • This invention relates to a universal watch, wherein the difference in time is corrected quickly from outside the watch.
  • FIG. 1 shows a cross sectional view of an embodiment according to the invention
  • FIG. 2 shows a 1
  • FIG. 3 shows a cross sectional view of a second am: bodiment 'accord'ing'to the invention.
  • 1 is a minute hand fixed to a cannon pinion 2
  • 3 is an hour hand fixed to an hour wheel 4
  • 5 is a spring washer supporting a friction spring 6
  • 11 is a hole on said auxiliary hour wheel
  • 9 is a projection on thehour wheel 4
  • 8 is a minute wheel pinion
  • 12 is a minute wheel
  • 7 is a time correcting wheelfor correcting differences in time.
  • 3 is an hour hand
  • 5 is a spring washer
  • 10 is an auxiliary hour wheel
  • 11 is a hole on said auxiliary hour wheel
  • 6 is a friction spring.
  • cannon pinion 2 fixed to the end of cannon pinion 2, which receives transmission from a center wheel and pinion having a cannon pinion.
  • the rotational motion is transmitted to the hour wheel 4 through a minute wheel pinion 8, an auxiliary hour wheel 10, and a hole 11 on said auxiliary hour wheel.
  • the minute wheel 12 continuously indicates the time through the hour hand 3 fixed on the end of the hour wheel 4. 1
  • the time correcting wheel 7 is rotated by a crown for time correction, and the rotational motion is transmitted to the hour wheel 4.
  • the auxiliary hour wheel 10 is pushed by a projection 9, due to the rotational motion of the hour weel transmitted by the time correcting wheel 7. Then said auxiliary hour wheel is rotated to the next hole, the projection 9 falls in hole 11 due to the friction spring holding down the auxiliary hour wheel 10. In this manner, a correction of 1 hour is achieved since the hour hand 3 is fixed on the hour wheel 4, and the holes 11 are spaced 30 apart.
  • the number of the projections provided on the hour wheel 4 should be a whole number divisor of 12. For example, it may be 4. The precise number depends on the rotational torque or stability of the hour wheel.
  • the correction is performed by means of displacing'a crown so that the projection 9 falls in the hole 11 on the auxiliary hour wheel twice.
  • the correction of a difference in time may be performed surely, quickly and easily.
  • the appearance of the watch does not differ from that of normal watches, while the invention provides a novel time correcting construction, wherein the time is corrected intermittently and quickly.
  • the stem of the watch is used for time correction.
  • a normal watch having a center secondhand is described, but'in the arrangement of hour, minute, and second hands, the well-known various forms of arrangement of hour, minute and second hands may be utilized.
  • time correction is performed intermittently and quickly.
  • time correction by driving the hands continuously is also obtainable.
  • a second hour wheel 3 is provided on the hour wheel 14, and the hour hand 3 is fixed on the second hourwheel.
  • the connection between the hour wheel and'the second hour wheel is frictional.
  • both of the hour wheels drive the hour hand in a body.
  • the second hour wheel engages with a time correcting wheel 7 which is even and parallel with the second hour wheel. Therefore, the second hour wheel is displaced relative to the hour wheel andonly the hour hand is corrected quickly.
  • the hour wheel. 14 the cannon pinion 2 and the minute wheel 12 and the .loss of hand driving torque does not occur.
  • a jumper spring is added to the hour wheel in order to assure the intermittent feeding.
  • the end of said jumper spring linked to. the stem or another shaft is engaged with said hour wheel by pushing, pulling or rotating said stem of other shaft. With every operation of the stem or other shaft, one tooth of the hour wheel is fed. Thus, quick correction of the difference in time is performed.
  • the hour hand is quickly corrected, leaving the minute hand as it is. Since most of the difference in time is shown in hours, it is practically sufficient to correct only the hour hand.
  • the difference between Greenwich mean time and local time is an integer number of hours plus one-half hour. This is to say, local time is n hours and 30 minutes, or [n (v /4)] hours, when the standard time is 12 oclock midnight.
  • This invention is also applicable-to a universal watch usable in such districts, so that the differences in time all over the world may be corrected quickly.
  • the hour hand is corrected by only n/4 hours at each operation of the stem or another shaft. This embodiment differs from the above-described embodiment in the number of teeth on the wheel thereof.
  • the minute hand is also designed to be corrected by 17/4 hours with the correction of the hour hand.
  • a universal watch comprising an hour hand; a watch train normally coupled to said hour hand for driving same, said watch train including an auxiliary axial force between said abutment means and said auxiliary hour wheel for axially biasing said auxiliary hour wheel against said-hour wheel, said hour hand being mounted on said hour wheel shaft portion; means operative from outside of said watch for selectively rotating said hour wheel relative to said auxiliary hour wheel; and positioning means on said hour wheel and auxiliary hour wheel for fixing incremental relative positions of said-auxiliary hour wheel and hour wheel in cooperation with the bias force of said'spring means for the driving of said hour hand by said watch train while permitting incremental rotation of said auxiliary hour wheel by said means operable from outside said watch for the selective incremental advancement of said hour hand independent of the displacement of said watch train.
  • said positioning means includes recess means on said auxiliary hour wheel and projectionmeans on said hourwheel, said recess means and projection means being.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
US00145354A 1970-06-01 1971-05-20 Universal watch Expired - Lifetime US3766730A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP45046373A JPS515592B1 (xx) 1970-06-01 1970-06-01

Publications (1)

Publication Number Publication Date
US3766730A true US3766730A (en) 1973-10-23

Family

ID=12745328

Family Applications (1)

Application Number Title Priority Date Filing Date
US00145354A Expired - Lifetime US3766730A (en) 1970-06-01 1971-05-20 Universal watch

Country Status (4)

Country Link
US (1) US3766730A (xx)
JP (1) JPS515592B1 (xx)
CH (2) CH762871A4 (xx)
GB (1) GB1330261A (xx)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3895485A (en) * 1973-03-06 1975-07-22 Zenith Time Sa Timepiece click device
US4415272A (en) * 1980-10-30 1983-11-15 Kieninger & Obergfell Fabrik Fur Technische Laufwerke Und Apparate Electrical timepiece with hour-hand adjustment
US4422777A (en) * 1981-06-16 1983-12-27 Rhythm Watch Co., Ltd. Time correcting device for time signalling timepiece
US6773157B1 (en) * 2002-12-30 2004-08-10 Timex Group B.V. Setting assembly for an analog timepiece

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5117187U (xx) * 1974-07-20 1976-02-07
CH643702GA3 (en) * 1982-09-29 1984-06-29 Motion work
CH683055B5 (fr) * 1992-05-21 1994-07-15 Longines Montres Comp D Pièce d'horlogerie dont l'affichage des heures peut être modifié de façon indépendante, notamment lors du passage sur un autre fuseau horaire.

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3599421A (en) * 1969-03-11 1971-08-17 Bulova Watch Co Inc Watch with manually adjustable time-zone-setting mechanism
US3611703A (en) * 1969-02-20 1971-10-12 Synchron Sa Watch for indicating time of two geographic zones

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3611703A (en) * 1969-02-20 1971-10-12 Synchron Sa Watch for indicating time of two geographic zones
US3599421A (en) * 1969-03-11 1971-08-17 Bulova Watch Co Inc Watch with manually adjustable time-zone-setting mechanism

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3895485A (en) * 1973-03-06 1975-07-22 Zenith Time Sa Timepiece click device
US4415272A (en) * 1980-10-30 1983-11-15 Kieninger & Obergfell Fabrik Fur Technische Laufwerke Und Apparate Electrical timepiece with hour-hand adjustment
US4422777A (en) * 1981-06-16 1983-12-27 Rhythm Watch Co., Ltd. Time correcting device for time signalling timepiece
US6773157B1 (en) * 2002-12-30 2004-08-10 Timex Group B.V. Setting assembly for an analog timepiece

Also Published As

Publication number Publication date
GB1330261A (en) 1973-09-12
CH762871A4 (xx) 1975-01-31
CH584925B5 (xx) 1977-02-15
JPS515592B1 (xx) 1976-02-20

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