Abstract: A two-tube centrifuge separates light material and heavy material from an input mixture. A hollow drive shaft rotates a central body member about an axis of rotation. Two hollow arm assemblies, each having circular cross-section, are mounted on diametrically opposite sides of the central body. Each arm assembly includes an outer housing tube, an intermediate tube, and an inner tube that is longer than the intermediate tube. An end cap having a removable plug is mounted on the outer end of the housing-tube of each arm assembly. The inner ends of all three tubes are mechanically interlocked in a manner to cantilever mount the inner and intermediate tubes to the central-body with their outer ends spaced from the internal surface of the end cap. An input-mixture path extends through the hollow drive shaft, through the central-body, and into a cylindrical space between the inner and intermediate tubes of each arm assembly.

Abstract: The disclosure is directed to a cartridge type centrifuge for separating particulate matter from fluids. The cartridge comprises a plurality of flow stages, each of which consists of alternately wrapped layers of flat and corrugated paper defining a plurality of vertical passages, the corrugations determining the space between passages. To effect uniform flow throughout all vertical passages, which brings maximum particle separation efficiency, the centrifuge includes a unique baffle which causes all fluid to flow through an area of maximum angular momentum.