| 摘要 |
A filter that can be inserted into a pressurized pipe comprises a filter body designed to be connected to each of two consecutive section of the pipe. Inside the filter body is a generally circular filter member which is rotatable about an axis of the filter body, into which it projects cantilever-fashion. A rim on the filter member carries a rack meshing with a drive wheel. A suction unit on the upstream side of the filter member and disposed along a radius of the filter member is connected to a take-off pipe. |
