JPS6448919A - Rising and falling dam made of flexible film - Google Patents

Rising and falling dam made of flexible film

Info

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
Application number
JP20487687A
Other languages
Japanese (ja)
Inventor
Haruhiko Matsuoka
Ichiro Maruyama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP20487687A priority Critical patent/JPS6448919A/en
Publication of JPS6448919A publication Critical patent/JPS6448919A/en
Pending legal-status Critical Current

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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.
JP20487687A 1987-08-17 1987-08-17 Rising and falling dam made of flexible film Pending JPS6448919A (en)

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)

* Cited by examiner, † Cited by third party
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
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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