| 摘要 |
899,743. Compression mixers. BERSTORFF MASCHINENBAU - ANSTALT G.m.b.H., HERMANN. Feb. 27, 1961 [Feb. 25, 1960], No. 7084/61. Class 86. A compression mixing machine has intermeshing tapered screws 2, 3 arranged vertically one above the other; their flights may have slots around the periphery, see Fig. 2 (not shown). There may be passages 5, 6 for a heat exchange medium.
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