FIELD: treatment of rawhide. SUBSTANCE: plant internal drum separated by blades-partitions into hollows is made in form of two disks. Disks are located at the end faces of external body and rigidly connected to shaft. Hollows are formed by blades-partitions which are rigidly connected to the end faces with disks. Blades-partitions are connected along the drum length with shaft rotating them at the preset speed. Blades-partitions are made of box-like shape with stiffening ribs. Working surfaces of blades-partitions are of quadratic curve in shape. EFFECT: higher efficiency of operation and reduced metal content. 2 dwg
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