Abstract: A product that is an apparatus for removing debris from water containing such debris using a perforated plate, a backer plate, and a skimmer, positioned adjacent the back of the perforated plate to provide a means of removing debris from the perforated plate without scraping the debris from the perforated plate, the skimmer bar and the backer plate being synchronized in their movement.

Abstract: A product that is an apparatus for removing debris from water containing such debris using a perforated plate, a backer plate, and a skimmer, positioned adjacent the back of the perforated plate to provide a means of removing debris from the perforated plate without scraping the debris from the perforated plate, the skimmer bar and the backer plate being synchronized in their movement.

Abstract: A product that is an apparatus for removing debris from water containing such debris using a perforated plate, a backer plate, and a skimmer, positioned adjacent the back of the perforated plate to provide a means of removing debris from the perforated plate without scraping the debris from the perforated plate, the skimmer bar and the backer plate being synchronized in their movement.

Abstract: A compactor for compacting and dewatering debris comprises a housing having an inlet for enabling debris to be delivered to forwarding augers which forward the debris to a compaction chamber at the discharge end of the housing. The chamber has an outlet opening of less cross-sectional area than that of the chamber, thereby ensuring compaction of the debris as it moves toward discharge. Debris enroute to discharge may be sprayed with water to remove sludge-like substances which otherwise would cling to some types of debris.

Abstract: A product that is an apparatus for removing debris from water containing such debris using a perforated plate, a backer plate, and a skimmer, positioned adjacent the back of the perforated plate to provide a means of removing debris from the perforated plate without scraping the debris from the perforated plate, the skimmer bar and the backer plate being synchronized in their movement.

Abstract: A compactor for compacting and dewatering debris comprises a housing having an inlet for enabling debris to be delivered to forwarding augers which forward the debris to a compaction chamber at the discharge end of the housing. The chamber has an outlet opening of less cross-sectional area than that of the chamber, thereby ensuring sufficient compaction of the discharged debris that it can pass through the opening. The opening is formed in an elastic wall which distorts to some extent and imposes a resistive force on the movement of debris through the opening, thereby further compacting the debris as it passes through the opening. Debris passing through the chamber may be sprayed with water to remove sludge-like substances which otherwise would cling to other types of debris.

Abstract: Apparatus for scraping debris from a trash rack occupying a position in a owing stream has a driven, upper turning drum and a pair of chains trained about the drum and carrying scraper blades which engage and carry debris on the upstream side of the rack upwardly for disposal. Each chain is composed of a plurality of links joined at their ends by pivot connections which limit the pivotal movement of the links from positions of linear prolongation in such manner as to avoid the necessity of a lower turning drum. By supporting the chain from an upper drum only, the lower parts of the chain are movable freely in directions away from and toward the rack, as well as vertically.

Abstract: A self-cleaning trash rack for removing debris from a stream of water has an upright frame positioned in the path of trash carried by the stream and a plurality of endless, flexible chains carrying trash supports which engage and carry debris on the upstream side of the frame upwardly for disposal. Each chain has sufficient slack to enable any trash support on the upstream side of the frame to rock in such direction as to release debris that is too heavy to be carried upwardly by such trash support.