Improvements in the indicators of liquid level by float. (Machine-translation by Google Translate, not legally binding)

摘要

Improvements in the liquid level indicators by float, characterized in that the indicator comprises mainly a drum rotatably supported in a tree, a float to be arranged in the liquid to follow the level of the liquid in its vertical movement, a cable or the like wound on said drum and connecting said float to said drum, a gear supported by said drum shaft in rotational relation thereto, a spiral spring mounted between said drum shaft and said gear so as to be preformed to a certain degree for preload said drum in the winding direction of said cable, and means for rotating said gear in the same direction as said drum shaft to develop or wind said spiral spring towards the original position in relation to said drum shaft, correspondingly, when said spiral spring is wound or developed from the original position in re with said drum shaft as said drum is rotated following the vertical movement of said float with the level of the liquid, whereby said spiral spring is maintained approximately in the original position with respect to said drum shaft independently of the variation of the liquid level. (Machine-translation by Google Translate, not legally binding)