DEVICE TO GRIND MATERIALS Russian patent published in 1994 - IPC

FIELD: mechanical engineering. SUBSTANCE: device has a housing, charging and unloading systems, the feeding system and removing one of the working substance, a flexible pipe with toothed strips placed in it, with one end of the pipe being fastened along the housing perimeter, the other-on the drive reversing drum, a rod with toothed surface and a cone on the end mounted in the pipe and a top located on the pipe. EFFECT: simpler design. 1 dwg