Diamond grinder assembly and snap-fit mounting means for scarifier case

Claim 1

A case for suitable attachment to the rotor disc of a grinder, in combination with an insert grinding assembly, comprising a rectangular flat plate having an outboard side and an inboard side, said plate having quick connection means at each opposite end between the walls of the case and the opposite ends of the said plate, wherein the case wall at one end is formed with an inturned lip coacting with an outboard end of the flat plate to thereby permit engagement under said lip, wherein the improvement, comprises: a compressible block for positioning within the case to yieldably resist depression of the plate when it is engaged under said lip thereby urging the end to engage upwardly against the underside of said lip, said compressible block being substantially coextensive with the inboard side of said plate; and a plurality of segments having selected grinding properties secured to the outboard side of said flat plate.