LABORATORY GRINDER Russian patent published in 2015 - IPC B02C19/00 B02C13/00 

FIELD: machine building.

SUBSTANCE: grinder contains vertically oriented grinding chamber in form of a sleeve 1 with cone internal surface. In the chamber coaxially working element is installed, in contains driven shaft 2 and grinding bodies in form of the cylindrical springs 4 in contact with internal surface of the chamber. The cylindrical springs 4 are installed on rods 5 located around the shaft 2 parallel to the internal walls of the chamber. The rods 5 by top end are connected with secured on shaft tow bar 6. The rod ends 5 connected with the tow bar 6 are at distance from the shaft exceeding the distance from their opposite ends.

EFFECT: higher intensity of grinding.

4 cl, 3 dwg