Patent ID: 6843947

Claim:
A method for roughing portions of solid concrete casted blocks comprising the steps of: (i) conveying a plurality of concrete casted blocks disposed in side-by-side aligned relationship over a block support surface having a straight front edge and a rear end edge disposed parallel to one another, at least a section of said support surface being inclined to create a ledge at said rear end edge extending across a travel path of said plurality of concrete casted blocks disposed in side-by-side relationship for projecting an aligned transverse leading edge portion of all said concrete blocks conveyed over said ledge; (ii) providing at least a roughing device having a plurality of impacting elements thereon and disposed a predetermined distance above said block support surface forwardly of said rear end edge; and (iii) impacting said transverse leading edge portions of said concrete blocks in side-by-side relationship by said plurality of impacting abrading elements as said concrete blocks are projected over said ledge by conveying means, said blocks being tilted when reaching a predetermined position over said ledge.