GB1430668A - Time display mechanism - Google Patents
Time display mechanismInfo
- Publication number
- GB1430668A GB1430668A GB5131273A GB5131273A GB1430668A GB 1430668 A GB1430668 A GB 1430668A GB 5131273 A GB5131273 A GB 5131273A GB 5131273 A GB5131273 A GB 5131273A GB 1430668 A GB1430668 A GB 1430668A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hour
- indicator
- shutter
- minutes
- cam
- 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
- G04B19/20—Indicating by numbered bands, drums, discs, or sheets
- G04B19/21—Drums
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromechanical Clocks (AREA)
Abstract
1430668 Digital clocks JAZ SA 5 Nov 1973 [17 Nov 1972] 51312/73 Heading G3T A time display mechanism comprises a first rotary member 6 carrying hours indicia, a second rotary member 4 carrying minutes indicia with the marks corresponding to 0 and 60 minutes separated by an angle α equal to that between adjacent hour marks, and an indicator 18 which is mounted over the members 4, 6 and moved with the member 6 to keep the indicator on the same hour mark until the hour changes whereupon the indicator moves rapidly backwards through the angle α. The members 4, 6 may thus be coupled directly to minute and hour shafts of a conventional movement. As shown the indicator is a shutter having a window 19 and arms 24, 24a which are pivoted at 23. Projection 25 on the arm 24 is engaged by a snail cam 15 fixed to minute shaft 2 so that the shutter is raised against gravity or a spring during each hour. On the hour, the projection falls on the cam and the shutter drops to indicate the next hour and 0 minutes. The indicator may alternatively be a pointer (7), Figs. 1-4 (not shown) pivoted around the shaft 2 with the cam 15 acting on an auxiliary lever (11) coupled to the indicator. The use of rotor discs or rings instead of drums is envisaged.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7240990A FR2207301B1 (en) | 1972-11-17 | 1972-11-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1430668A true GB1430668A (en) | 1976-03-31 |
Family
ID=9107339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5131273A Expired GB1430668A (en) | 1972-11-17 | 1973-11-05 | Time display mechanism |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3841086A (en) |
| JP (1) | JPS50871A (en) |
| DE (1) | DE2357313A1 (en) |
| FR (1) | FR2207301B1 (en) |
| GB (1) | GB1430668A (en) |
| SU (1) | SU564831A3 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5414683Y2 (en) * | 1975-04-30 | 1979-06-16 | ||
| JPS5436274U (en) * | 1977-08-17 | 1979-03-09 | ||
| US7961561B2 (en) * | 2009-10-05 | 2011-06-14 | Daniel Charles Moeder | Handless time display |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3712050A (en) * | 1970-06-02 | 1973-01-23 | T Kawada | Digital indicating machine |
-
1972
- 1972-11-17 FR FR7240990A patent/FR2207301B1/fr not_active Expired
-
1973
- 1973-11-05 GB GB5131273A patent/GB1430668A/en not_active Expired
- 1973-11-06 US US00413243A patent/US3841086A/en not_active Expired - Lifetime
- 1973-11-16 JP JP48128375A patent/JPS50871A/ja active Pending
- 1973-11-16 DE DE2357313A patent/DE2357313A1/en active Pending
- 1973-11-16 SU SU7301969867A patent/SU564831A3/en active
Also Published As
| Publication number | Publication date |
|---|---|
| FR2207301B1 (en) | 1975-11-07 |
| US3841086A (en) | 1974-10-15 |
| JPS50871A (en) | 1975-01-07 |
| FR2207301A1 (en) | 1974-06-14 |
| DE2357313A1 (en) | 1974-05-30 |
| SU564831A3 (en) | 1977-07-05 |
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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 |