Abstract: Compacting apparatus comprising a first compacting plate and a second compacting plate arranged for linear, reciprocating movement relative to the first compacting plate. Arranged between the plates in the neighborhood of one of said plates is a free-fall aperture, such that a compacted object is able to fall freely, through gravity, from said apparatus subsequent to completing a compacting stroke.

Abstract: A double-acting compacting apparatus comprises two movable compaction plates and stationary compaction plate arranged between said movable plates. Arranged between respective ones of said movable plates and said stationary plate is a free-fall aperture through which compacted objects can fall under gravity. Means are provided for connecting the movable plates together such that during a compaction stroke utilizing one of said movable plates the other of said movable plates defines with said stationary plate a space for receiving further material to be compacted.