US2162926A - Drainage tile - Google Patents
Drainage tile Download PDFInfo
- Publication number
- US2162926A US2162926A US226282A US22628238A US2162926A US 2162926 A US2162926 A US 2162926A US 226282 A US226282 A US 226282A US 22628238 A US22628238 A US 22628238A US 2162926 A US2162926 A US 2162926A
- Authority
- US
- United States
- Prior art keywords
- pipe
- notch
- split
- tile
- tank
- 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 - Lifetime
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B11/00—Drainage of soil, e.g. for agricultural purposes
- E02B11/005—Drainage conduits
Definitions
- This invention relates to drainage tiles, and consists in a tile for under-drain filters that is efficient, durable, and cheap to manufacture.
- FIG. I is a view in perspective of the tile of the invention.
- Fig. II is a view of it in plan from beneath.
- split sewer pipe be placed in rows about two feet apart, split side down, on the floor of the tank; and upon the so-placed pipe broken stone is heaped and spread within the tank, to a depth of about seven feet.
- liquid sewage is spread upon the upper surface of the bed of stone, and filterin action ensues.
- the fioor of the tank slopes to a central well and the rows of split pipe that lie upon the floor of the tank afford channels, to aid in causing the eflluent to pass to the well. They afford also access of air, for aeration of the bed of stone.
- a split pipe with no further refinement of shape, is ill-suited to such service; because, in the prolonged operation of the filter, a jelly collects at the line where the split pipe rests on the floor of the tank; and the so collecting jelly hinders the escape of efliuent and hinders also the ingress of air.
- the filter in the prolonged operation of the filter, a jelly collects at the line where the split pipe rests on the floor of the tank; and the so collecting jelly hinders the escape of efliuent and hinders also the ingress of air.
- I may retain the simpler structure of a split pipe with notched edges by so arranging the notches that they succeed one an- 40 other in staggered arrangement on opposite edges throughout the length of the pipe; that at no point does a notch on one edge come opposite to a notch on the other edge; and that in the longitudinal succession of opposite notches an in- 45 tegral and unnotched portion of the pipe shall intervene between each notch and the next succeeding (and opposite) notch.
- the length of split pipe I is, along its two edges notched with notches 2, 3, 4.
- the staggered arrangement is manifest; while between notch 2 on one edge and notch 3 on the other, a length of unnotched pipe body a, marked off by dotted lines, intervenes.
- the split pipe of my invention may have a cylindrical and uniform body 36 inches long and 8 inches in diameter (or, perhaps, 6 or 10 or 12 inches in diameter). At one end it may be 20 provided with a bell for bell-and-spigot union with another like unit, or it may be plain and unelaborated.
- the uniform body four slots are formed, each 3 inches long and 2 inches deep. The centre to centre spacing is 8 inches. The slots are staggered in their succession.
- a drainage tile for a filter consisting of a split pipe with notched edges, the notches upon the opposite edges being arranged in staggered succession, and the length of each notch being less than the centre to centre interval between a notch on one edge and the next succeeding notch on the other, whereby portions of the vault afforded by the tile when in service extend between the notches, in continuity from the supporting floor on one side to the supporting floor on the other.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Biological Treatment Of Waste Water (AREA)
Description
Patented June 20, 1939 UNITED STATES DRAINAGE TILE Frank S. Wuelker, St. Louis, Mo., assignor to. Laclede-Christy Clay Products Company, a corporation of Missouri Application August 23, 1938, Serial No. 226,282
1 Claim.
This invention relates to drainage tiles, and consists in a tile for under-drain filters that is efficient, durable, and cheap to manufacture.
In the accompanying drawing Fig. I is a view in perspective of the tile of the invention, and
Fig. II is a view of it in plan from beneath.
It has long been the practice of engineers, in preparing plans and specifications on sewagetreatment plants of the trickling filter type, to
specify that split sewer pipe be placed in rows about two feet apart, split side down, on the floor of the tank; and upon the so-placed pipe broken stone is heaped and spread within the tank, to a depth of about seven feet. In the operation of the plant liquid sewage is spread upon the upper surface of the bed of stone, and filterin action ensues. The fioor of the tank slopes to a central well and the rows of split pipe that lie upon the floor of the tank afford channels, to aid in causing the eflluent to pass to the well. They afford also access of air, for aeration of the bed of stone. V
A split pipe, with no further refinement of shape, is ill-suited to such service; because, in the prolonged operation of the filter, a jelly collects at the line where the split pipe rests on the floor of the tank; and the so collecting jelly hinders the escape of efliuent and hinders also the ingress of air. To overcome the difficulty, the
30 proposal has been made, to notch the edges of the lengths of split pipe; but it has been found that by the notching the load-bearing strength of the split pipe has been seriously impaired. It has become the practice, therefore, to provide 35 drainage tile members for this use of more elaborate structure, and of more costly production.
I have found that I may retain the simpler structure of a split pipe with notched edges by so arranging the notches that they succeed one an- 40 other in staggered arrangement on opposite edges throughout the length of the pipe; that at no point does a notch on one edge come opposite to a notch on the other edge; and that in the longitudinal succession of opposite notches an in- 45 tegral and unnotched portion of the pipe shall intervene between each notch and the next succeeding (and opposite) notch. Referring to Fig. II of the drawing, the length of split pipe I is, along its two edges notched with notches 2, 3, 4.
50 5, etc. The staggered arrangement is manifest; while between notch 2 on one edge and notch 3 on the other, a length of unnotched pipe body a, marked off by dotted lines, intervenes.
Consider now the structure of the split pipe laid split side down upon the floor of the filter tank. It becomes a barrel vault, carrying the load of the filter bed. It is characteristic of the tile of my invention that, throughout all of its 5 extent, and on every plane of cross-section, the crown of the vault, on one side at least, finds direct support on the floor of the tank. Throughout the intervals a such direct support is afforded on both sides; and elsewhere, the support on one 10 side being direct, it is on the other side forked: the support for such portion of the vault is Y- shaped. That is to say, considering the portion b, its support on one side is direct, as by the stem of a Y at c; and on the opposite side it .is forked 15 as through the branches of a Y, at d and e. Spe+ cifically, the split pipe of my invention may have a cylindrical and uniform body 36 inches long and 8 inches in diameter (or, perhaps, 6 or 10 or 12 inches in diameter). At one end it may be 20 provided with a bell for bell-and-spigot union with another like unit, or it may be plain and unelaborated. Along each edge of the uniform body four slots are formed, each 3 inches long and 2 inches deep. The centre to centre spacing is 8 inches. The slots are staggered in their succession. along the two edges, and the centre to centre spacing from a slot on an edge to the next succeeding slot on the other edge is (measured in the length of the pipe) 4 inches. The intervals a, then, of continuous and unnotched body, are 1 inch in longitudinal extent. I give these figures by way of illustration, merely.
With slots so arranged and proportioned the load is evenly distributed and the structure is strong to sustain the load. The desired facility of fiow of efliuent is afforded and the desired aeration.
I claim as my invention:
A drainage tile for a filter consisting of a split pipe with notched edges, the notches upon the opposite edges being arranged in staggered succession, and the length of each notch being less than the centre to centre interval between a notch on one edge and the next succeeding notch on the other, whereby portions of the vault afforded by the tile when in service extend between the notches, in continuity from the supporting floor on one side to the supporting floor on the other.
FRANK S. WUELKER.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US226282A US2162926A (en) | 1938-08-23 | 1938-08-23 | Drainage tile |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US226282A US2162926A (en) | 1938-08-23 | 1938-08-23 | Drainage tile |
Publications (1)
Publication Number | Publication Date |
---|---|
US2162926A true US2162926A (en) | 1939-06-20 |
Family
ID=22848286
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US226282A Expired - Lifetime US2162926A (en) | 1938-08-23 | 1938-08-23 | Drainage tile |
Country Status (1)
Country | Link |
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US (1) | US2162926A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3503103A (en) * | 1963-04-29 | 1970-03-31 | Paul C Deters | Apparatus for cutting undulated ends on continuously moving tile |
US4538141A (en) * | 1982-10-04 | 1985-08-27 | Chevron Research Company | Water detection subassembly and method of forming same, for computer processing centers |
US4598277A (en) * | 1984-07-30 | 1986-07-01 | Chevron Research Company | Water detection subassemblies and method of forming same, for use in computer processing centers |
-
1938
- 1938-08-23 US US226282A patent/US2162926A/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3503103A (en) * | 1963-04-29 | 1970-03-31 | Paul C Deters | Apparatus for cutting undulated ends on continuously moving tile |
US4538141A (en) * | 1982-10-04 | 1985-08-27 | Chevron Research Company | Water detection subassembly and method of forming same, for computer processing centers |
US4598277A (en) * | 1984-07-30 | 1986-07-01 | Chevron Research Company | Water detection subassemblies and method of forming same, for use in computer processing centers |
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