Patent ID: 7559757
Filing Date: 2009-07-14
Classification: B24B,B28B,B28D

Abstract:
1. A block-texture-modifying apparatus for modifying the surface texture of blocks, said apparatus comprising: a block support for supporting blocks thereon; a block-texture-modifying assembly for engaging and applying pressure to blocks on said support; and a translational movement assembly for providing a translational movement between the blocks on said support and said block-texture-modifying assembly; wherein said black-texture-modifying assembly is adapted to selectively exert extra pressure on blocks engaged thereby during said translational movement as to modify the respective surface texture thereof, said block-texture-modifying assembly comprises at least one block-texture-modifying device, said block-texture-modifying device comprises a top roller, said top roller comprising ring members, adapted to engage the surface texture of blocks during said translational movement, and said ring-members are so expandable as to selectively exert extra pressure on the surface texture of blocks engaged thereby.