F26B 17/288

Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by rollers or discs with material passing over or between them, e.g. suction drum, sieve {, the axis of rotation being in fixed position the materials being dried on perforated drums or rollers, e.g. sieve or suction drums}