Device for regulating the flow of waste waters

A device for regulating the rate of flow of waste water which has mixed with clear rainwater and which is to be transmitted to a purification station, comprising:

• a collector chamber having a first orifice for receiving waste water and clear water, a second orifice for discharging water containing a higher concentration of waste matter, and a third orifice for discharging water containing a lower concentration of waste matter;
• and
• an adjustable device housed in said collector chamber for causing a predetermined maximum quantity of water containing a higher concentration of waste matter to be discharged through said second orifice and for causing the remaining water admitted to said collector chamber via said first orifice to be discharged through said third orifice;
• said adjustable device comprising:
• a first conical element having one end connected to said first orifice for receiving water admitted therethrough, and containing baffle means for reducing turbulence in the admitted water;
• said first conical element having an opening formed therein which permits outlet of water therethrough from said first conical element;
• and
• a second conical element;
• said two conical elements being oriented with their wider bases toward each other and the conical elements being connected to each other end to end in such a manner that their axes form an obtuse angle in a generally horizontal plane;
• said second conical element having an end connected to said second orifice for discharging therethrough water having a higher concentration of waste matter;
• and said second conical element containing a slot the effective area of which is adjustable, for discharging the remaining water into said collector chamber for discharge via said third orifice.