GB1103298A - Calendar timepiece - Google Patents
Calendar timepieceInfo
- Publication number
- GB1103298A GB1103298A GB3598/67A GB359867A GB1103298A GB 1103298 A GB1103298 A GB 1103298A GB 3598/67 A GB3598/67 A GB 3598/67A GB 359867 A GB359867 A GB 359867A GB 1103298 A GB1103298 A GB 1103298A
- Authority
- GB
- United Kingdom
- Prior art keywords
- wheel
- indicator
- teeth
- spring
- wheels
- 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
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
- G04B19/00—Indicating the time by visual means
- G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
- G04B19/243—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator
- G04B19/247—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator disc-shaped
- G04B19/253—Driving or releasing mechanisms
- G04B19/25333—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement
- G04B19/25373—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released stepwise by an energy source which is released at determined moments by the clockwork movement
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromechanical Clocks (AREA)
Abstract
1,103,298. Calendar timepieces. EBAUCHES S.A. Jan. 24, 1967 [Feb. 22, 1966], No. 3598/67. Heading G3T. The control mechanism for the date indicator 1 of a calendar timepiece comprises two coaxial wheels 7, 11 rotatable at slightly different speeds and connected together by a spring 14 which becomes stressed as the angular displacement between the wheels increases, the wheel 7 being released once every twenty four hours whereupon its abrupt rotation indexes the date indicator one step forward. Pinions 8 and 13, fastened together on a hub 8a, drive the wheels 7 and 11 respectively, the wheel 7 having more teeth than the wheel 11. The spring 14 is located in a recess (15), Fig. 2 (not shown) in the lower surface of the wheel 11 and the ends 14a, 14b of the spring are bent at right angles to engage sector shaped openings 17 and 18 in the wheels 11 and 7 respectively. Initially the openings 17, 18 are aligned, but as the pinion 13 drives the wheel 11 at one revolution in twenty four hours, the wheel 7 is driven at a slightly slower speed by the pinion 8. The openings 17, 18 are relatively displaced and the spring stressed until a cut away segment 19 of the wheel 7 releases the wheel from its pinion 8. The sudden rotation of the wheel 7 then causes its pin 6 to engage teeth 5 of the date indicator which is advanced by one step. A detent 4 locates the indicator 1 in each position. To conserve power in an electric timepiece, the detent 4 may be raised at the moment of advancing the indicator, the pin 6 remaining in the path of the teeth 5 at the end of the operation to prevent the indicator advancing two teeth at a time.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH256366A CH458216A (en) | 1966-02-22 | 1966-02-22 | "Surprise" mechanism for a timepiece |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1103298A true GB1103298A (en) | 1968-02-14 |
Family
ID=4236611
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3598/67A Expired GB1103298A (en) | 1966-02-22 | 1967-01-24 | Calendar timepiece |
Country Status (5)
Country | Link |
---|---|
US (1) | US3427799A (en) |
CH (1) | CH458216A (en) |
DE (1) | DE1548135C3 (en) |
FR (1) | FR1511339A (en) |
GB (1) | GB1103298A (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH497729A (en) * | 1968-09-16 | 1970-05-29 | Gruen Watch Mfg Co S A | Date watch |
US3875739A (en) * | 1973-08-08 | 1975-04-08 | Fontainemelon Horlogerie | Control mechanism of at least one element of a timepiece which is running step by step |
CH1195873A4 (en) * | 1973-08-20 | 1975-12-31 | ||
FR2454128A1 (en) * | 1979-04-12 | 1980-11-07 | Inst Chasovoi Promyshlennost | Calender mechanism for clocks and watches - has instantaneous action, and uses seven-lobe maltese cross drive |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB172591A (en) * | 1920-06-29 | 1921-11-29 | Horlogerie Et Bijouterie De Ge | Improvements in or relating to clocks, watches, and like instruments |
-
1966
- 1966-02-22 CH CH256366A patent/CH458216A/en unknown
-
1967
- 1967-01-24 GB GB3598/67A patent/GB1103298A/en not_active Expired
- 1967-01-31 US US612949A patent/US3427799A/en not_active Expired - Lifetime
- 1967-02-13 FR FR94757A patent/FR1511339A/en not_active Expired
- 1967-02-15 DE DE1548135A patent/DE1548135C3/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE1548135C3 (en) | 1974-04-04 |
DE1548135A1 (en) | 1971-02-18 |
US3427799A (en) | 1969-02-18 |
CH256366A4 (en) | 1968-02-29 |
FR1511339A (en) | 1968-01-26 |
DE1548135B2 (en) | 1973-08-30 |
CH458216A (en) | 1968-08-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1319315A (en) | Calendar timepiece | |
GB1226453A (en) | ||
GB2027953B (en) | Setting a solid state watch | |
GB1302220A (en) | ||
GB1308509A (en) | Digitally indicating clocktimer | |
GB1103298A (en) | Calendar timepiece | |
JPS5424674A (en) | Electronic watch | |
GB1131205A (en) | Improvements in or relating to calendar watches | |
US4014163A (en) | Clockwork for designating time and tide | |
GB1411452A (en) | Timepiece with digital time display | |
GB1481178A (en) | Tide indicating apparatus | |
GB1183357A (en) | A Calendar Timepiece | |
GB1099897A (en) | Seconds hand drive train arrangement | |
GB1438801A (en) | Drive mechanism for two coaxial calendar members in a watch movement | |
GB1487318A (en) | Calendar ring driving wheel for timepieces | |
GB1370547A (en) | Self-winding mechanism for watches | |
GB1535029A (en) | Timepiece mechanism | |
US2496690A (en) | Seconds setting mechanism | |
GB1039208A (en) | Calendar timepiece | |
GB1307920A (en) | Alarm clocks | |
GB1292237A (en) | Indexing mechanism for horological instruments | |
GB1323905A (en) | Day calendar timepiece | |
GB1462402A (en) | Time switch | |
GB1423094A (en) | Apparatus for advancing an index wheel | |
GB1280135A (en) | Calendar clock |