SU40326A1 - Apparatus for continuous filtering - Google Patents

Description

When filtering solutions in chemical laboratories, it is occasionally necessary to add a new portion of the solution to the funnel. which takes a lot of time. In addition, when filtering solutions saturated with harmful gases, they have to breathe; it is also possible to pour the solution above the filter, whereby the precipitate is to be filtered again.

To eliminate these drawbacks, the device shown in the drawing and consisting of the vessel 1 being closed by a lid 2 fitted with a rubber ring 3 is inserted. A double tube 4--5 with a rubber tube 6 attached to it is inserted into the lower opening of the vessel.

On the tube 4-5. The vessel 1 is put on the funnel 7 and closed in the paws of the tripod 8, the vessel 1 is put on through the tripod ring 9. After opening the lid 2, the filter solution is poured into the vessel until the end of the tube 4. Again closing the vessel with a lid, push it up so that the level of the solution is not above the end of tube 5, after which the liquid in tube 4 will flow into the funnel. At the place of the liquid in the vessel through the tube 5 will flow air. As soon as the level of the solution rises to the lower end of the tube 5, it will not allow air to enter the vessel, so that the liquid will no longer flow into the funnel until the flowing solution opens access to the vessel, etc.

Expert and editor E. K, Forst.

Nredmet of the invention.

A continuous filtering apparatus consisting of a closed vessel overturned with a filter funnel with a filtered liquid, immersed with its opening in the |) illiterated liquid in the funnel for the purpose of maintaining the constant level of the liquid in the funnel, characterized in that vessel 1 for the filtered liquid is equipped with a pull-out a tube 4 with a tube 5 for the passage of air in order to conveniently pour liquid into the vessel 1 when the tube 4 is retracted and to start up the apparatus when the said tube is pulled out.