Abstract: A conveyor belt tensioning arrangement for an agricultural harvesting header (102), the agricultural harvesting header (102) with the conveyor belt tensioning arrangement, and an agricultural combine having the agricultural harvesting header (102) are described herein, the arrangement comprising a conveyor belt roller (208) supported on a roller carriage (228), the conveyor belt roller (208) being spring-loaded to maintain tension in the conveyor belt (108, 112), the conveyor belt roller (208) also being supported to pivot about an axis generally perpendicular to the longitudinal extent of the conveyor belt roller (208).

Abstract: A debris herding method and apparatus is described comprising a low power air blower and a tilted rotary rake. The air blower acts together with a tilted rotary rake to dislodge and impel the debris. A motor driven chassis transports the blower and the rotary rake across the lawn. The blower and rotary rake can be energetically powered, such as by a solar cell array mounted to the chassis. The present invention is directed to an energetically efficient device for moving debris on a surface, such as leaves on a lawn.

Abstract: This invention relates to a method of repairing existing manholes and similar structures by applying a fast-curing elastomeric material using spray techniques whereby a homogeneous, non-porous, and monolithic coating or lining is formed. The fast-curing elastomeric material can be applied directly to existing concrete, brick, tile, mortar, and metal surfaces normally found in sewer manholes and catch basins, sewer and drainage pipes, parking decks, bridge piers and footings, holding ponds, bridge trusses, culverts, gratings, and the like and does not require any formwork. The elastomeric coatings provide effective surface protection against wear, corrosion, and water infiltration and can be applied in a single operation to horizontal, vertical, and overhead surfaces.