| 摘要 |
An equilibrium valve (7) which is opened and closed by the movement of a float means (16, 17) secured at an end of a lever arm (8) and which rises and falls in use with the level of water in a container (11). The supply of liquid to the container is controlled by the valve (7) which has a discharge outlet (6) directing incoming water in a downwardly direction. The lever arm (8) is combined with a catchpot (5) into which incoming water is diverted. The catchpot (5) is mounted on or forms part of the arm (8) and includes a region which extends below the discharge outlet (6) of the valve (7) and includes a draining orifice (2) which aligns with the outlet (6) when the lever arm has dropped sufficiently to begin to open the valve. When the container is nearly full the buoyancy of the floats carries the lever arm and catchpot upwardly to close the valve. In doing so the catchpot empties, increasing the buoyancy effect and thereby closing the valve more rapidly and firmly. |
