| 摘要 |
923,201. Sampling liquids. L. ERDELY. Aug. 6, 1959 [Aug. 6, 1958], No. 26949/59. Class 106 (5). [Also in Group XX] Samples of ocean water having a density greater than normal and located near the ocean floor are collected by a device responsive to increases of density. A float 15, Fig. 2, pivoted at 16, rises due to increased density and operates a mercury switch 17 to inform observers at the surface, and also a mercury switch 18, having a delay of 60 seconds, which controls the circuit of an electromagnet 25 closing a sampling vessel 26. Alternatively sampling may be effected with suction bottles, each bottle being directly recovered afterwards by automatic means, or the water of greater density may be pumped through a duct to the surface. The device is contained in a tray 7, loaded by weight 8, and pivoted about an axis 4, Fig. 1, in a cage-like carriage formed of rods 1, 2 and balls 3. On lowering the carriage in the sea a mercury switch 13 normally completes a circuit but when the sea bed is reached the contacts of switch 13 are opened. Movement of the carriage over the sea bed causes rotation of a ball 10 actuating, through cable 12, a cam disc 27 so that at each revolution a rod 28 is suddenly moved outwardly and the mercury in tube 32 momentarily makes contacts 33, 34 to give an indication at the surface of the rate of movement of the device |
