Abstract: An apparatus and method for roughing the surface and edges of concrete casted blocks, such as concrete pavers is described herein. The apparatus comprises an elongated block-receiving surface having first and second longitudinal end portions and provided with block-tilting elements for sequentially tilting up at least two upper edges of a block moving on the surface from a first end portion to a second end portion; means for moving blocks on the block-receiving surface from the first to second end portions; and a plurality of impacting elements located above the block-receiving surface for reciprocating movement towards and away the block-receiving surface for impacting blocks on the block-receiving surface. The tilting elements may be in the form of wheels rotatably mounted to the block-receiving surface and positioned for sequentially tilting up each of the four upper edges of the block moving on the surface.

Abstract: A feeder to supply blocks to a tumbler having a block inlet from a generally horizontal platform, the feeder comprising a frame and a shelf assembly so mounted to the frame as to reciprocate between a block receiving position and a block dumping position; the shelf assembly generally aligned with the platform when the shelf assembly is in the block receiving position to receive at least one block thereupon from the platform; the shelf assembly being so movable as to be angled into a block dumping position to cause the blocks to slide from the shelf assembly to the inlet of the tumbler.