JPS6448919A - Rising and falling dam made of flexible film - Google Patents
Rising and falling dam made of flexible filmInfo
- Publication number
- JPS6448919A JPS6448919A JP20487687A JP20487687A JPS6448919A JP S6448919 A JPS6448919 A JP S6448919A JP 20487687 A JP20487687 A JP 20487687A JP 20487687 A JP20487687 A JP 20487687A JP S6448919 A JPS6448919 A JP S6448919A
- Authority
- JP
- Japan
- Prior art keywords
- rising
- flexible film
- falling
- weir
- film
- 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 prevent damage to a baggy film by providing an abrasion retarder for the surface of a weir column which is touched by the baggy film of a flexible film rising and falling weir when falling-down. CONSTITUTION:An abrasion retarder 3 is provided for the surface of a weir column 2a which is in touch with the baggy film 5 of a flexible film rising and falling weir when fallen down. Damage to the baggy film 1a of the weir can thus be prevented.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20487687A JPS6448919A (en) | 1987-08-17 | 1987-08-17 | Rising and falling dam made of flexible film |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20487687A JPS6448919A (en) | 1987-08-17 | 1987-08-17 | Rising and falling dam made of flexible film |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6448919A true JPS6448919A (en) | 1989-02-23 |
Family
ID=16497859
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP20487687A Pending JPS6448919A (en) | 1987-08-17 | 1987-08-17 | Rising and falling dam made of flexible film |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6448919A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5431937A (en) * | 1977-08-13 | 1979-03-09 | Sumitomo Electric Industries | Moving weir made of flexible film |
JPS5813812A (en) * | 1981-07-16 | 1983-01-26 | Sumitomo Electric Ind Ltd | Multiply connected falling dam made of flexible film |
-
1987
- 1987-08-17 JP JP20487687A patent/JPS6448919A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5431937A (en) * | 1977-08-13 | 1979-03-09 | Sumitomo Electric Industries | Moving weir made of flexible film |
JPS5813812A (en) * | 1981-07-16 | 1983-01-26 | Sumitomo Electric Ind Ltd | Multiply connected falling dam made of flexible film |
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