Profile: George Green (Keighley) Ltd. specializes in the manufacture of mild & stainless steel fabrications, all welded to ASME IX and BSEN287 standards, including design, manufacture, and installation for oil, gas, and petrochemical both on and off-shore. The rotating half bridge scraper is designed to remove settled sludge and scum from circular settlement tanks. The equipment in a tank comprises a galvanized fabricated bridge structure of channel or universal beam sections complete with a galvanized steel open mesh flooring walkway, suitable handrails, and toe plates. The half bridge scraper rotates about a central pivot, and it's outer end is fitted with an end carriage which carries the bridge drive and wheel assemblies.