GB1490296A - Level surveying equipment - Google Patents
Level surveying equipmentInfo
- Publication number
- GB1490296A GB1490296A GB3387675A GB3387675A GB1490296A GB 1490296 A GB1490296 A GB 1490296A GB 3387675 A GB3387675 A GB 3387675A GB 3387675 A GB3387675 A GB 3387675A GB 1490296 A GB1490296 A GB 1490296A
- Authority
- GB
- United Kingdom
- Prior art keywords
- water
- reservoir
- weir
- branch
- sight glass
- 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
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
- G01C5/04—Hydrostatic levelling, i.e. by flexibly interconnected liquid containers at separated points
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
1490296 Levels; liquid level control PUNFORD Ltd 13 Aug 1976 [14 Aug 1975 10 Sept 1975 9 Feb 1976] 33876/75 37238/75 and 04978/76 Headings G1F and G1H A liquid level comprises a graduated sight glass 23 connected by a trailing hose 22 to a vessel 21 in which water is maintained at a datum level by being coupled to a weir which continuously overflows at 19 with water supplied from a reservoir 10. A casing 7 carried by a tripod 6 houses a sink 9 from which water is transferred by a pump 13 to the reservoir 10; water in the reservoir flows under gravity along a pipe 17 which branches, one branch 18 extending and opening into the sink to provide the overflow 19 weir and the other branch leading to the base of the vessel or sight glass 21 and to the hose 22. Electric contacts 25, 26 actuate a motor 14 to drive the pump 13 when the level in the reservoir drops. An electric contact 28 in the branch 18 controls a lamp 29 on the sight glass 23, the lamp being extinguished as a warning if the water in the weir should fail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3387675A GB1490296A (en) | 1976-08-13 | 1976-08-13 | Level surveying equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3387675A GB1490296A (en) | 1976-08-13 | 1976-08-13 | Level surveying equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1490296A true GB1490296A (en) | 1977-10-26 |
Family
ID=10358614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3387675A Expired GB1490296A (en) | 1976-08-13 | 1976-08-13 | Level surveying equipment |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1490296A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4134585A1 (en) * | 1991-10-19 | 1993-04-22 | Siegbert Brutscher | METHOD FOR TRANSMITTING A HEIGHT LEVEL AND DEVICE THEREFOR |
-
1976
- 1976-08-13 GB GB3387675A patent/GB1490296A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4134585A1 (en) * | 1991-10-19 | 1993-04-22 | Siegbert Brutscher | METHOD FOR TRANSMITTING A HEIGHT LEVEL AND DEVICE THEREFOR |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |