| 摘要 |
<p>SEWAGE BLENDER A blender having two nested grindstones which meet along a frusto-conical surface and rotate with respect to each other about their common axis. The grindstones are of rough textured ceramic having perforations as large as one-quarter inch at the surface of each grindstone. Abrasion of the sewage material against the stones introduces new perforations and cutting edges. The design of the grindstones inhibits the clogging of the stones by metallic, ceramic, or plastic objects found in sewage and also inhibits jamming of the blender by long fibrous materials.</p> |
