GB1320053A - Apparatus for moistening a mass of soil - Google Patents
Apparatus for moistening a mass of soilInfo
- Publication number
- GB1320053A GB1320053A GB1202271A GB1202271A GB1320053A GB 1320053 A GB1320053 A GB 1320053A GB 1202271 A GB1202271 A GB 1202271A GB 1202271 A GB1202271 A GB 1202271A GB 1320053 A GB1320053 A GB 1320053A
- Authority
- GB
- United Kingdom
- Prior art keywords
- capillary
- reservoir
- tubes
- soil
- water
- 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
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G27/00—Self-acting watering devices, e.g. for flower-pots
- A01G27/04—Self-acting watering devices, e.g. for flower-pots using wicks or the like
Landscapes
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Cultivation Receptacles Or Flower-Pots, Or Pots For Seedlings (AREA)
Abstract
1320053 Watering plants N CALTAGIRONE 28 April 1971 [28 April 1970] 12022/71 Heading A1E A device for watering plants comprises capillary means 8 for supplying water from reservoir 6 to soil T, capillary tubes 3 connecting the reservoir with the atmosphere, and an auxiliary reservoir 1 linked to the main reservoir by a central channel 4, the tubes 3 communicating with the central channel and via passages 13, 12, 10, with the atmosphere. The removal of water by capillary action through tubes 8 causes a reduction in pressure in the air space of reservoir 1 until an equilibrium is reached between the capillary suction and the reduced pressure, stopping the flow out. When moisture has evaporated from the soil suction resumes and the reduction in pressure once more increases, until atmospheric pressure is able to overcome the surface tension resistance of the water in capillary tubes 3 and air can enter the reservoir. The reduced pressure can therefore be maintained at a fixed value and the amount of moisture absorbed by the soil be governed by the width of the tubes 3, since the narrower the tubes the greater the surface tension resistance. In a modification, capillary tubes of different widths radiate from the central channel 4, the amount of moisture absorbed by the soil being adjusted by a rotatable valve sleeve connecting them selectively with the atmosphere. In further embodiments (Figs. 6-10, not shown) the auxiliary reservoir is omitted and a capillary orifice (35, 41) is inserted below the level of the water on the end of a hollow sleeve (34, 44) removably located in an upper wall of the reservoir. In Fig. 11 capillary means 65 1 ..65 3 communicating with the reservoir R are buried in separate masses of soil, the regulating capillary passages being provided by porous capillary material 62.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7015402A FR2088860A6 (en) | 1968-11-28 | 1970-04-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1320053A true GB1320053A (en) | 1973-06-13 |
Family
ID=9054714
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1202271A Expired GB1320053A (en) | 1970-04-28 | 1971-04-28 | Apparatus for moistening a mass of soil |
Country Status (2)
Country | Link |
---|---|
CH (1) | CH540004A (en) |
GB (1) | GB1320053A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2139465A (en) * | 1983-05-13 | 1984-11-14 | John Upton | Plant pots |
GB2204222A (en) * | 1987-04-28 | 1988-11-09 | Selsmore | Plant container |
GB2225520A (en) * | 1988-12-02 | 1990-06-06 | Colin Draper | Control of irrigation water supply |
GB2240453A (en) * | 1990-02-02 | 1991-08-07 | William George Lyne | Self watering device for plants |
-
1971
- 1971-04-28 CH CH627671A patent/CH540004A/en not_active IP Right Cessation
- 1971-04-28 GB GB1202271A patent/GB1320053A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2139465A (en) * | 1983-05-13 | 1984-11-14 | John Upton | Plant pots |
GB2204222A (en) * | 1987-04-28 | 1988-11-09 | Selsmore | Plant container |
GB2225520A (en) * | 1988-12-02 | 1990-06-06 | Colin Draper | Control of irrigation water supply |
GB2240453A (en) * | 1990-02-02 | 1991-08-07 | William George Lyne | Self watering device for plants |
Also Published As
Publication number | Publication date |
---|---|
CH540004A (en) | 1973-08-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |