Conveyors and feeders as parts of machines, namely, mechanical machines for removal of solids from liquids; [ Mechanical mud collectors as parts of machines that separate solids from liquids; ] mechanical separators for separating solids from liquids; sifting installations comprising bars or perforated plates to remove solids from water; raking installations for removal of solids from liquids, essentially consisting of mechanical rakes installed in channels of concrete or in steel containers;...

trash compacter