Automatic meter for liquid level. (Machine-translation by Google Translate, not legally binding)

摘要

Automatic meter for level of liquids, especially liquids located in a tank, characterized in that it consists of a rod with a square profile, subjected to a studied twist so that its edges form a kind of long loop, around its own geometric axis; whose rod, at its upper end, carries a solidary bushing, with an indicator needle, arranged so that when the rod is rotated, so does the indicator needle, and traverses the graduated dial of an indicator disc coupled to the upper end of the device. (Machine-translation by Google Translate, not legally binding)