JPS5578711A - Up-and-down barrage - Google Patents
Up-and-down barrageInfo
- Publication number
- JPS5578711A JPS5578711A JP15078478A JP15078478A JPS5578711A JP S5578711 A JPS5578711 A JP S5578711A JP 15078478 A JP15078478 A JP 15078478A JP 15078478 A JP15078478 A JP 15078478A JP S5578711 A JPS5578711 A JP S5578711A
- Authority
- JP
- Japan
- Prior art keywords
- bag
- steel plate
- base
- way
- pressure
- 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.)
- Pending
Links
Landscapes
- Barrages (AREA)
Abstract
PURPOSE: To prepare barrage possible to get under automatical control by providing airtight bag between base and steel plate, the latter of which is jointed at its lowest end in a rotation-free way with the base laid at the bottom of river etc., making the bag's engagement metal fittings matched with play with bag holes made in given numbers in both steel plate and base in order to prevent vibration and damage of the bag.
CONSTITUTION: When pressure is applied by air into empty bag 3, the bag 3 swells against water pressure and pushes up steel plate 2 in a rotating way. So as for bag 3 to be free from excessive counterforce in this operation and surely push up steel plate 2, bag holes in required numbers are made in base 1 and steel plate 2 respectively, while engagement metal fittings in required numbers are provided on bag 3 in a projecting way in such a style that they can move freely in the long slit 6 made in bag hole 8 covered by watertight hood 7. Because bag 3 is connected with suitable freedom in such a way, it can afford to serve for regulation of over-flow of water in correspondence to the water level of upstream under proper pressure given to bag 3 by pressure-supplying device.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15078478A JPS5578711A (en) | 1978-12-05 | 1978-12-05 | Up-and-down barrage |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15078478A JPS5578711A (en) | 1978-12-05 | 1978-12-05 | Up-and-down barrage |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5578711A true JPS5578711A (en) | 1980-06-13 |
Family
ID=15504348
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15078478A Pending JPS5578711A (en) | 1978-12-05 | 1978-12-05 | Up-and-down barrage |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5578711A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4780024A (en) * | 1987-06-05 | 1988-10-25 | Obermeyer Henry K | Crest gate |
-
1978
- 1978-12-05 JP JP15078478A patent/JPS5578711A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4780024A (en) * | 1987-06-05 | 1988-10-25 | Obermeyer Henry K | Crest gate |
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