| 摘要 |
<p>862,762. Aerating sewage. AMES CROSTA MILLS & CO. Ltd., and BOLTON, J. F. March 28, 1958 [April 5, 1957], No. 9945/58. Divided out of 862,761. Class 111. [Also in Group II] Apparatus for aerating liquids, e.g. sewage, industrial effluents and water, comprises an internally-bladed inverted truncated cone A mounted for rotation in partially immersed condition about a vertical axis, the liquid under treatment reaching the interior of the cone stationary uptake tube, by way of a short cylindrical neck S and/or frusto-conical skirt R, without passing through any stationary uptake tube. Specification 602,130 is also referred to.</p> |
