| 摘要 |
1424934 Adjustable overflow device GELSENBERG AG MOBIL OIL AG IN DEUTSCHLAND and KING-WILKINSON INC 30 Nov 1973 [2 Dec 1972] 55633/73 Heading BID Floating oil is removed from an enclosed body of water by a trough 4 which is supported by end floats (5), 6, at least float 6 being internally divided (Fig. 3) so that ballast water may be displaced from one of chambers 10, 12 to the other to tilt the float and thereby depress one longitudinal edge of the trough below the surface. Fig. 4 (not shown) illustrates how air is delivered to either of chambers 10, 12 to displace water through tube 13. The central chamber 11 is permanently ballasted to set the mean level of the trough. The trough floor slopes from both ends to a central outlet 37, which is connected to oil outlet pipe 40 by two flexible tubes 7 (Fig. 1, not shown). Trough tilting is limited by adjustable stops 41, 42 engaging guides 33, in which the end floats slide vertically. Several troughs can be joined end to end by common floats to span a vessel. All floats can be partitioned as in Fig. 3, or some can be mere hollow drums.
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