GB1025537A - Self-clearing screen assembly for use in irrigation and like projects - Google Patents
Self-clearing screen assembly for use in irrigation and like projectsInfo
- Publication number
- GB1025537A GB1025537A GB44836/64A GB4483664A GB1025537A GB 1025537 A GB1025537 A GB 1025537A GB 44836/64 A GB44836/64 A GB 44836/64A GB 4483664 A GB4483664 A GB 4483664A GB 1025537 A GB1025537 A GB 1025537A
- Authority
- GB
- United Kingdom
- Prior art keywords
- float
- valve
- gate valve
- irrigation
- screen grid
- 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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B5/00—Artificial water canals, e.g. irrigation canals
- E02B5/08—Details, e.g. gates, screens
- E02B5/085—Arresting devices for waterborne materials, e.g. gratings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Barrages (AREA)
Abstract
1,025,537. Irrigation. L. A. TURNER. Nov. 3, 1964 [Nov. 7, 1963], No. 44836/64. Heading A1B. A self-cleaning screen assembly for irrigation comprises a spillway channel 16 through a weir, a pivoted gate valve 19 comprising a trough-shaped float pivoted at the downstream end of a chamber 18 in the bottom of said channel, a clean water take-off 23 from said float chamber 18 to a canal or similar, a screen grid 25 pivotally mounted upstream and overlaying said gate valve such that lifting, i.e. opening, said gate valve 19 raises the free end of the screen grid 25, while downward closing of the gate valve 19 permits the screen grid 25 to assume a horizontal position to allow debris to be washed down the spillway channel 16. The float 19 may be raised or lowered according to the setting of a control lever 28 whereby a valve 27 may be opened to permit entry of water into the float 19 but becomes syphoned out more quickly through a pipe 30 until the float. 19 rises and closes: valve 27. If lever 28 is moved to an intermittent position the valve 27 is open whatever the float position is: and thereby causes a succession of: lifting and lowering operations. In the fully flooding position of valve 27 the float 19 remains in the down position.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ZA635052 | 1963-11-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1025537A true GB1025537A (en) | 1966-04-14 |
Family
ID=25560786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB44836/64A Expired GB1025537A (en) | 1963-11-07 | 1964-11-03 | Self-clearing screen assembly for use in irrigation and like projects |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1025537A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2655073A1 (en) * | 1989-11-30 | 1991-05-31 | Electricite De France | Device for relieving a water course of voluminous floating material with the aid of a grid |
| ITMO20120062A1 (en) * | 2012-03-12 | 2013-09-13 | E P Di Provasi Elvino Ambientenerg Ia | PERFECT HYDRAULIC BRIDLE. |
-
1964
- 1964-11-03 GB GB44836/64A patent/GB1025537A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2655073A1 (en) * | 1989-11-30 | 1991-05-31 | Electricite De France | Device for relieving a water course of voluminous floating material with the aid of a grid |
| ITMO20120062A1 (en) * | 2012-03-12 | 2013-09-13 | E P Di Provasi Elvino Ambientenerg Ia | PERFECT HYDRAULIC BRIDLE. |
| EP2639356A1 (en) * | 2012-03-12 | 2013-09-18 | E.P. di Provasi Elvino Ambientenergia | An improved hydraulic weir |
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