Liquid level indicator

Claim 1

IN A LIQUID LEVEL INDICATOR THE COMBINATION COMPRISING AN ELONGATED TUBULAR HOUSING ADAPTED TO PROVIDE A LIQUID-TIGHT ENCLOSURE, SAID HOUSING BEING ADAPTED FOR VERTICAL SUPPORT IN A LIQUID STORAGE TANK, REFERENCE MEANS ON SAID HOUSING, A FLOAT SLIDABLY MOUNTED ON SAID TUBULAR HOUSING FOR RECTILINEAR MOVEMENT PARALLEL TO THE LONGITUDINAL AXIS THEREOF, A PERMANENT MAGNET SECURED TO AND MOVEABLE WITH SAID FLOAT, AND A SUBASSEMBLY COMPRISING AN ELONGATED STRUCTURAL MEMBER AND A PAIR OF TAPE WHEELS JOURNALLED AT OPPOSITE END PORTIONS THEREOF, SAID SUBASSEMBLY ALSO COMPRISING A FOLLOWER MAGNET AND AN ENDLESS TAPE HAVING INDICIA OF LIQUID MEASUREMENT THEREALONG, SAID TAPE EXTENDING BETWEEN AND AROUND SAID TAPE WHEELS FOR MOVEMENT THEREON AND SAID FOLLOWER MAGNET BEING SECURED TO SAID TAPE SO AS TO MOVE THE SAME RELATIVE TO SAID REFERENCE MEANS, SAID SUBASSEMBLY BEING ADAPTED TO ENTER SAID HOUSING WITH SAID STRUCTURAL MEMBER SLIDABLY ENGAGING THE INTERIOR SURFACE OF THE HOUSING AND WITH SAID FOLLOWER MAGNET MAGNETICALLY COUPLED TO SAID PERMANENT MAGNET FOR MOVEMENT THEREWITH AND FOR CORRESPONDING MOVEMENT OF THE TAPE.