| 摘要 |
A control device for controlling the level of a liquid in a container, a tank, a printing machine, or the like, which includes an elongated member in form of a tube or a cable, having a free end adjacent the desired maximum liquid level in the container and being adapted to feed a control medium, i.e., a gas, electric current, or light therethrough, which acts on a signalling device, or control means of a pump for feeding liquid in the container and which are actuated when the liquid reaches the free end of the elongated member. The elongated member being adjustably mounted for adjusting the position of the free end thereof in vertical direction.
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