| 摘要 |
This invention involves a cylinder of circular section, with one end raised about 5 degrees above the other, and capable of being rolled back and forth through an arc of approximately 210 degrees, 105 degrees in either direction from a central position, or in some cases for complete revolutions, into which trash, garbage, and possibly septage are introduced repeatedly through a hole in the top of the high end when the cylinder is in the central position, and then the cylinder is rocked from one extreme position to the other so that the material inside is tumbled upon itself and aerated and randomly dispersed, and by repeatly falling tends to progress from the high, input end toward a discharge opening in the low end as digested compost. These units can be built by any reasonably competent mechanic. The smaller ones require a cold chisel, electric drill, and ideally a saber-saw or acetylene torch. The larger ones will require some welding.
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