GB1495458A - Digital clocks - Google Patents
Digital clocksInfo
- Publication number
- GB1495458A GB1495458A GB10171/75A GB1017175A GB1495458A GB 1495458 A GB1495458 A GB 1495458A GB 10171/75 A GB10171/75 A GB 10171/75A GB 1017175 A GB1017175 A GB 1017175A GB 1495458 A GB1495458 A GB 1495458A
- Authority
- GB
- United Kingdom
- Prior art keywords
- wheel
- gear
- minutes
- numbers
- display
- 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
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 230000001360 synchronised effect Effects 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
- G06M1/00—Design features of general application
- G06M1/22—Design features of general application for visual indication of the result of count on counting mechanisms, e.g. by window with magnifying lens
- G06M1/24—Drums; Dials; Pointers
- G06M1/241—Drums
-
- 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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
- G06M1/00—Design features of general application
- G06M1/04—Design features of general application for driving the stage of lowest order
- G06M1/06—Design features of general application for driving the stage of lowest order producing continuous revolution of the stage, e.g. with gear train
- G06M1/062—Design features of general application for driving the stage of lowest order producing continuous revolution of the stage, e.g. with gear train for drum type indicating means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Displays For Variable Information Using Movable Means (AREA)
- Transmission Devices (AREA)
- Toys (AREA)
Abstract
1495458 Counters P R MALLORY & CO Inc 11 March 1975 [11 March 1974] 10171/75 Heading G4D [Also in Division G3] In a counting apparatus such as a digital clock number wheels are in two concentric parts 80, 82 each carrying part of the number sequence, the outer part 82 having a window through which the numbers on the inner can be seen and the two parts are driven in a suitable manner to display the complete number sequence. In the clock a gear 68 and seconds wheel 78 are driven continuously by a synchronous motor. A double cam surface 70, 72 on gear 68 causes a lever 50 to be repeated pivoted about and shifted along a shaft 52 whereby a pin 116 on lever 50 advances stepwise a gear assembly 98 which by gear 104 and shaft 83 rotates the inner minutes wheel 80 once every five minutes. Geneva teeth 126 on gear 98 and 106 on a coupling disc 121 rotate the outer minutes wheel 82 once every other rotation of wheel 80 to display the numbers 5, 6, 7, 8, 9; when the outer wheel rests the numbers 0, 1, 2, 3, 4 are visible on the inner wheel 80. The tens of minutes wheel 84 is rotated by a conventional geneva drive while the hours display comprises a further pair of inner and outer wheels 86, 88 displaying respectively the sequence 0-6 and 7- 12. A setting drive is provided (Fig. 2, not shown).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US449696A US3922848A (en) | 1974-03-11 | 1974-03-11 | Digital display mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1495458A true GB1495458A (en) | 1977-12-21 |
Family
ID=23785130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB10171/75A Expired GB1495458A (en) | 1974-03-11 | 1975-03-11 | Digital clocks |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US3922848A (en) |
| JP (1) | JPS5545916B2 (en) |
| AU (1) | AU7868175A (en) |
| BR (1) | BR7501415A (en) |
| CA (1) | CA1028157A (en) |
| DE (1) | DE2510585A1 (en) |
| FR (1) | FR2264314B3 (en) |
| GB (1) | GB1495458A (en) |
| IT (1) | IT1030171B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4177630A (en) * | 1977-10-25 | 1979-12-11 | Bunker Ramo Corporation | Sweep seconds to jump seconds conversion for clocks |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2351814A (en) * | 1939-10-30 | 1944-06-20 | Holzner Adolf | Cyclometer clock |
| US2762190A (en) * | 1945-05-28 | 1956-09-11 | Holzner Adolf | Cyclometer clock system |
| US2576119A (en) * | 1945-05-28 | 1951-11-27 | Holzner Adolf | Wall and desk cyclometer clock |
-
1974
- 1974-03-11 US US449696A patent/US3922848A/en not_active Expired - Lifetime
-
1975
- 1975-02-17 CA CA220,294A patent/CA1028157A/en not_active Expired
- 1975-02-18 IT IT67414/75A patent/IT1030171B/en active
- 1975-02-28 AU AU78681/75A patent/AU7868175A/en not_active Expired
- 1975-03-04 FR FR7506672A patent/FR2264314B3/fr not_active Expired
- 1975-03-11 GB GB10171/75A patent/GB1495458A/en not_active Expired
- 1975-03-11 DE DE19752510585 patent/DE2510585A1/en not_active Withdrawn
- 1975-03-11 BR BR1415/75A patent/BR7501415A/en unknown
- 1975-03-11 JP JP2874775A patent/JPS5545916B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CA1028157A (en) | 1978-03-21 |
| FR2264314A1 (en) | 1975-10-10 |
| IT1030171B (en) | 1979-03-30 |
| BR7501415A (en) | 1975-12-09 |
| JPS50122896A (en) | 1975-09-26 |
| US3922848A (en) | 1975-12-02 |
| JPS5545916B2 (en) | 1980-11-20 |
| AU7868175A (en) | 1976-09-02 |
| DE2510585A1 (en) | 1975-09-25 |
| FR2264314B3 (en) | 1977-11-10 |
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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 |