TOSHIBA MACHINE CO., LTD. Primary Class: 451/397. Other Classes: 451/425 . International Classes: B23Q1/76; B24B5/04; B24B41/06; (IPC1-7): B24B41/06 . Field of Search: 51/49,13R,13C,236,251-254,238S ... The present invention relates to a roll grinder, and, in particular, to a roll grinding device adapted to be attached to such a roll grinder ...