Patent ID: 6494393
Filing Date: 2002-12-17
Classification: B02C

Abstract:
A mill for grinding loose materials, comprising:a closed container having a first and a second pole; a fixed frame for supporting said container at said first and second poles; a first coupling shaft articulated at said first pole; a second coupling shaft articulated at said second pole; a driving shaft; a flange fixed to said driving shaft; eccentric means with adjustable eccentricity, provided at said flange for supporting and actuating said second coupling shaft and said second pole to perform a substantially circular orbit; translatory motion elements for varying the eccentricity of said eccentric means to achieve various dimensions of said circular orbit; centering means, provided at said fixed frame, to provide correct positioning of said first coupling shaft for each of the various dimensions of said circular orbit; a self aligning support provided at said second coupling shaft; a rotary coupling element for connecting said second coupling shaft, through said self aligning support, to said eccentric means; an articulated arm, mounted on said fixed frame and connected to said second coupling shaft for maintaining said container on a movement path corresponding to the circular orbit; and at least one opening, provided at said container for introducing and removing the materials.