JPS518968A - - Google Patents
Info
- Publication number
- JPS518968A JPS518968A JP50070122A JP7012275A JPS518968A JP S518968 A JPS518968 A JP S518968A JP 50070122 A JP50070122 A JP 50070122A JP 7012275 A JP7012275 A JP 7012275A JP S518968 A JPS518968 A JP S518968A
- Authority
- JP
- Japan
- Prior art keywords
- hour
- disc
- minutes
- numerals
- synchronism
- 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.)
- Pending
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
- G04B19/20—Indicating by numbered bands, drums, discs, or sheets
- G04B19/202—Indicating by numbered bands, drums, discs, or sheets by means of turning discs
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromechanical Clocks (AREA)
- Transmission Devices (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Control Of Electric Motors In General (AREA)
- Control Of Stepping Motors (AREA)
Abstract
A mechanical digital watch comprises a continuously rotating minute disc having the numerals 0 through 59 positioned consecutively about the periphery thereof and an hour disc having the hour numerals thereon which is driven by a cannon pinion through a Geneva drive pinion arrangement. The hour disc is stationary during approximately 54 minutes of each hour and rapidly shifts to the next digit between 3 minutes before each hour to 3 minutes past each hour. The time indicating discs are in gear engagement with each other which prevents them from falling out of synchronism with each other under shock.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00477731A US3854280A (en) | 1974-06-10 | 1974-06-10 | Mechanical digital watch |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS518968A true JPS518968A (en) | 1976-01-24 |
Family
ID=23897125
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP50070122A Pending JPS518968A (en) | 1974-06-10 | 1975-06-10 |
Country Status (5)
Country | Link |
---|---|
US (1) | US3854280A (en) |
JP (1) | JPS518968A (en) |
CH (1) | CH613083B (en) |
DE (1) | DE2524414A1 (en) |
FR (1) | FR2274081A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5989394A (en) * | 1982-11-15 | 1984-05-23 | Hitachi Ltd | Lubricant composition for metal processing |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4376996A (en) * | 1981-04-27 | 1983-03-15 | Timex Corporation | Thin stepping motor watch |
DE3239217A1 (en) * | 1982-10-22 | 1984-04-26 | Wolfram 8019 Untereichhofen Müller | Dial rotation timepiece |
CH661171GA3 (en) * | 1985-09-27 | 1987-07-15 | ||
GB9601332D0 (en) * | 1996-01-23 | 1996-03-27 | Oudani Limani | New ways to tell the time |
EP1406131A1 (en) * | 2002-10-01 | 2004-04-07 | Manufacture Roger Dubuis S.A. | Mechanical device for the display of hours and minutes |
DE102009019335B4 (en) * | 2009-04-30 | 2011-01-13 | Lange Uhren Gmbh | Clock |
DE102014117436B3 (en) * | 2014-11-27 | 2015-11-05 | Lange Uhren Gmbh | Indexing means |
EP3811157B1 (en) * | 2018-06-20 | 2024-06-26 | Patek Philippe SA Genève | Digital display for a timepiece |
EP4012508A1 (en) * | 2020-12-08 | 2022-06-15 | Montres Breguet S.A. | Device for timepiece display on several levels |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2633696A (en) * | 1944-11-22 | 1953-04-07 | Casco Products Corp | Cyclometer clock |
US3045418A (en) * | 1960-06-07 | 1962-07-24 | Ed Heuer & Co Sa | Time meter |
US3685283A (en) * | 1970-11-13 | 1972-08-22 | Joseph Bamat | Digital watch |
-
1974
- 1974-06-10 US US00477731A patent/US3854280A/en not_active Expired - Lifetime
-
1975
- 1975-06-03 DE DE19752524414 patent/DE2524414A1/en not_active Withdrawn
- 1975-06-03 CH CH714275A patent/CH613083B/en unknown
- 1975-06-10 FR FR7518085A patent/FR2274081A1/en active Granted
- 1975-06-10 JP JP50070122A patent/JPS518968A/ja active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5989394A (en) * | 1982-11-15 | 1984-05-23 | Hitachi Ltd | Lubricant composition for metal processing |
JPS6322238B2 (en) * | 1982-11-15 | 1988-05-11 | Hitachi Ltd |
Also Published As
Publication number | Publication date |
---|---|
US3854280A (en) | 1974-12-17 |
DE2524414A1 (en) | 1975-12-18 |
FR2274081A1 (en) | 1976-01-02 |
CH613083GA3 (en) | 1979-09-14 |
CH613083B (en) | |
FR2274081B3 (en) | 1978-02-03 |
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