Abstract: A strainer for removing particles from a horizontal flow of effluent comprises a plurality of parallel fixed bars adapted to extend angularly downwardly into the flow of effluent and a set of parallel displaceable bars interdigited with the fixed bars. The displaceable bars are interconnected and connected to a drive mechanism to cause the displaceable bars to move in a circuitous path such that the displaceable bars move upwardly relative to the fixed bars to remove material engaged thereon and are thence thereafter lowered, whereby the material is lifted upwardly along the fixed bars. The displaceable bars are supported at their lower ends to the drive mechanism by a flexible connection apparatus so that the path of movement of the displaceable bars is unconstrained to minimize stress on the strainer should debris become lodged beneath the lower end of the displaceable bars.