| 摘要 |
PURPOSE:To provide a liquid level measuring tool of a liquid storage tank whose production cost is low and by which the measurement of a liquid level by visual observation can be performed easily. CONSTITUTION:A level gage 1 is made by bending and processing a wire material in the form of a coil, and rings 11a, 11b, 11c different in outside diameters as a scale indicating a liquid level are equipped. The basic end part 21c of the level gage 1 is fixed on the inside of a cover 21 of a reserve tank. A liquid film is produced by surface tension of liquid on the opening faces of the rings 11a, 11b, 11c which come into contact with liquid of the tank when they are lifted. |
