Vibratory industrial screening machines for separating wet and dry materials, and parts therefor; Screening machines for separation of dry materials; Filtering screens as parts of vibrating machines; Screens for separation of wet and dry materials; Filtering replacement screens as parts of vibrating machines; Replacement screens for separation of wet and dry materials; Structural and replacement parts for vibratory industrial screening machines; Sifting machines; Drill mud screening machines; Solids separation machines; Electric vibratory motors for machines, and parts therefor