GB1283380A - Time measuring apparatus - Google Patents
Time measuring apparatusInfo
- Publication number
- GB1283380A GB1283380A GB6209169A GB6209169A GB1283380A GB 1283380 A GB1283380 A GB 1283380A GB 6209169 A GB6209169 A GB 6209169A GB 6209169 A GB6209169 A GB 6209169A GB 1283380 A GB1283380 A GB 1283380A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cells
- pendulum
- photo
- obergfell
- plinth
- 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
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C10/00—Arrangements of electric power supplies in time pieces
- G04C10/02—Arrangements of electric power supplies in time pieces the power supply being a radioactive or photovoltaic source
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optical Radar Systems And Details Thereof (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
- Electric Clocks (AREA)
- Measurement Of Unknown Time Intervals (AREA)
Abstract
1283380 Clocks H OBERGFELL [trading as KIENINGER & OBERGFELL] 19 Dec 1969 [20 Dec 1968] 62091/69 Heading G3T A photo-cell powered clock has a torsional pendulum 1 which is suspended from a plate 9 and is surrounded by fixed selenium cells 3 disposed in a configuration centred on the axis of the pendulum 1. The photo-cells 3 lie on the inner surface of a transparent or translucent cylindrical member 5 and the clock is encased by a plinth 7 and a transparent glass or plastics dome 4. There may be several axially spaced sets of cells, the cells being connected in series, parallel, or a combination thereof, or the or each cylindrical surface may comprise a single cell. The pendulum 1 is maintained either (a) by a clockwork mechanism 2, which is wound by a D.C. motor or other electro-magnetic mechanism powered by the cells 3, or (b) by pulses controlled by a transistor circuit and supplied from an accumulator which is charged by the cells 3. In alternative embodiments, the photo-cells (3') Fig. 2 (not shown) are arranged on the plinth beneath the pendulum in a chequer board, concentric, spiral or other pattern. The cells 3 may also be used to connect a light source to a battery when the ambient illumination falls below a pre-set level, in order to maintain irradiation of the cells.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19681815931 DE1815931A1 (en) | 1968-12-20 | 1968-12-20 | Photoelectric timing device, in particular clock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1283380A true GB1283380A (en) | 1972-07-26 |
Family
ID=5716857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6209169A Expired GB1283380A (en) | 1968-12-20 | 1969-12-19 | Time measuring apparatus |
Country Status (4)
| Country | Link |
|---|---|
| CH (2) | CH1918269A4 (en) |
| DE (1) | DE1815931A1 (en) |
| FR (1) | FR2033211A7 (en) |
| GB (1) | GB1283380A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103383536A (en) * | 2013-06-28 | 2013-11-06 | 烟台北极星股份有限公司 | Design method of mechanical torsional pendulum transparent year clock movement and movement |
-
1968
- 1968-12-20 DE DE19681815931 patent/DE1815931A1/en active Pending
-
1969
- 1969-12-19 GB GB6209169A patent/GB1283380A/en not_active Expired
- 1969-12-19 FR FR6944079A patent/FR2033211A7/fr not_active Expired
- 1969-12-19 CH CH1918269D patent/CH1918269A4/xx unknown
- 1969-12-19 CH CH1918269A patent/CH521617A/en not_active IP Right Cessation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103383536A (en) * | 2013-06-28 | 2013-11-06 | 烟台北极星股份有限公司 | Design method of mechanical torsional pendulum transparent year clock movement and movement |
| CN103383536B (en) * | 2013-06-28 | 2016-03-02 | 烟台北极星股份有限公司 | A kind of method for designing of mechanical torsional pendulum transparent year clock movement and movement thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2033211A7 (en) | 1970-12-04 |
| DE1815931A1 (en) | 1970-07-02 |
| CH1918269A4 (en) | 1971-11-30 |
| CH521617A (en) | 1971-11-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |