| 摘要 |
<p>928,838. Centrifugal separators. H. P. O. UNGER. July 19, 1961 [July 28, 1960], No. 26122/61. Class 23. [Also in Group XVIII] Centrifuging apparatus for measured quantities of liquid or continuously flowing liquid comprises a number of compartments 3 arranged near the periphery of a body 1 and connected by passage 4 to a central compartment 5 by which liquid is introduced to fill all the compartments 3 to the level of the bottom 6 of the central compartment 5. The bottom 6 may be adjustable in height, e.g., may be the head of a screw 7, and the bottoms of the compartments 3 may be similarly adjustable or volume-diminishing bodies may be fitted in the compartments. A filling funnel 10, which may be graduated, fits into the compartment and may be vertically adjustable to co-operate with the head of the screw 7 to form an inlet valve and may also have means for closing an overflow passage 8 in the screw 7. A connection 14 is provided for rotating the body 1 being provided at 14 and air vents 13 are set obliquely towards the centre of the body. Holes 11 from the compartments 3 are connected by flexible tubes 20 to containers 18 which are mounted in radial fixed position round a head 17 or are carried in pivoted members 19 which swing down to place the containers in vertical position when rotation stops. To control the flow of liquid in the con tainers, a dividing wall may extend almost to the bottom of the container or the tube 20 may occupy a large part of the volume of a container. By suitable location of the tube end, together with adjustment of the centrifuging speed, layering of liquids of different densities or deposition of particle suspensions from liquids can be achieved. The layers may remain in the containers or be forced out successively. Continuously-flowing liquid may be supplied through a stationary tube 30, Fig. 3a, of which the mouth is directed towards the passages 4 so that the liquid flows across the undersurface of a lid 2 covering the compartments and directly to the holes 11.</p> |
