Slide gates for water and sewage treatment plants

A slide gate mechanism adapted for mounting in functional relation with an opening in a wall, said gate comprising a rear frame assembly having first and second frame members for disposition along the sides of said opening and at least a third frame member extending between said first and second members for disposition along the bottom of said opening, a front frame assembly having first and second gate guide members for disposition along said first and second frame members and at least a fourth member extending between and interconnecting said first and second gate guide members, a gate assembly located between said first and second gate guide members, means associated with said first and second gate guide members for slidably engaging opposite edges of said gate assembly so that said gate assembly may be moved relative and parallel to said first and second gate guide members, and operating means carried by said front frame assembly and connected to said gate assembly and operable to selectively move said gate assembly in one direction or an opposite direction relative to said gate guide means so that said gate may be disposed in blocking or unblocking relation with said opening, and at least one resilient seal supported by at least one of said first, second and third frame members and slidably engaging said gate assembly, said at least one seal being disposed and constructed so that a first portion thereof is engaged by said gate assembly and a second portion thereof is deflected away from said gate assembly when said first portion thereof is engaged by said gate assembly.