FIELD: drainage of soil, for instance for agricultural purposes, particularly drainage systems.
SUBSTANCE: slot-like drainage comprises mouth section including two opposite side walls with orifices and partition, which holds apart side walls due to side wall supporting by opposite partition sides. To retain side walls in place the partition is provided with side extensions passing through orifices in walls. The extensions may be deformed to prevent partition removal through orifices without additional partition deformation.
EFFECT: high surface water or another liquid throughput through narrow straight slot and simplified slot-type drainage creation.
26 cl, 14 dwg
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RU2015037C1 |
