| 摘要 |
PURPOSE:To accurately indicate a liquid surface level, by providing an up-and- down movable metal float in the bottom closed upright pipe in a liquid tank 1 while providing a ring shaped magnet in a ring shaped float so as to always locate the metal float and the ring shaped float at the same position. CONSTITUTION:A short cylindrical metal float 11 made of a stainless steel plate is provided in the bottom closed upright pipe 3 fixed to the liquid tank wall of a liquid tank 1 by upper and lower support metal fittings 8, 9 so as to be made movable up and down and a liquid surface level indication metal wire 6 is connected to the central part of the metal float 11. Next, a ring shaped magnet 12 is secured to the inside of the ring shaped float 4 movable up and down along the outside of the upright pipe 3. When water is poured in the liquid tank 1, the ring shaped float 4 is floated to the water surface along the upright pipe 3 and the metal float 11 is attracted to the ring shaped magnet 12 and moved to the same position as the ring shaped float 4 while the liquid surface level indication graduation meter 7 connected to the metal wire 6 indicates a liquid surface level accurately. |
