Mechanically raked bar screen

A mechanically raked bar screen for removing solids from liquid flowing therethrough comprising bar mountings on which are removably mountd an array of screen bars in side-by-side spaced-apart relationship, movable rake means having tines extending between adjacent screen bars for raking from the upstream side of the screen bars the solids retained thereby and spacer means fixed to at least one bar of each pair of adjacent bars and arranged to ensure that the spacing between the bars of each pair of adjacent bars is not less than a minimum value, each bar being mounted on a first and a second mounting, at least one bar of each pair of adjacent bars being held against lateral movement at the first mounting, and being mounted on the second mounting for permitting lateral movement toward or away from the other bar of the pair in response to the application of force from one or more tines during raking of the bar screen.