Liquid metering apparatus

Claim 1

AN APPARATUS FOR DISPENSING METERED QUANTITIES OF LIQUID COMPRISING: A CYLINDRICAL RECEPTACLE HAVING A CAPACITY OF APPROXIMATELY 55 GALLONS, MEANS FOR SUPPORTING SAID RECEPTACLE FOR ROTATION ABOUT ITS HORIZONTALLY DISPOSED LONGITUDINAL AXIS. A PLURALITY OF COPLANAR INDICIA RADIALLY AND EQUIDISTANTLY SPACED FROM SAID LONGITUDINAL AXIS ON ONE END WALL OF SAID RECEPTACLE, STATIONARY REFERENCE MEANS, CARRIED BY THE MEANS FOR SUPPORTING THE RECEPTACLE, FOR REFERENCING INDICIA CORRESPONDING TO POSITIONS OF RECEPTACLE ROTATION ABOUT ITS LONGITUDINAL AXIS, A VALVED LIQUID OUTLET EXTENDING THROUGH ONE END WALL OF SAID RECEPTACLE AND RADIALLY SPACED FROM SAID AXIS, A VENT EXTENDING THROUGH ONE END WALL OF SAID RECEPTACLE AND BEING RADIALLY SPACED FROM SAID AXIS DIAMETRICALLY OPPOSITE TO SAID VALVED OUTLET, EACH SAID INDICIA, WHEN ALIGNED WITH SAID REFERENCE MEANS BEING A FUNCTION OF THAT PORTION OF THE CAPACITY OF THE RECEPTACLE WHICH CANNOT BE DRAINED THROUGH SAID OUTLET AT THE ROTATIONAL POSITION OF SAID RECEPTACLE CORRESPONDING TO SAID INDICIA AND REFERENCE MEANS ALIGNMENT WHEREBY, BY ROTATING SAID RECEPTACLE ABOUT SAID AXIS TO INDEX THE RECEPTACLE FROM A POSITION OF A FIRST INDICIA AND REFERENCE MEANS ALIGNMENT AT WHICH THE LEVEL OF LIQUID WITHIN THE RECEPTACLE IS LEVEL WITH SAID OUTLET, TO A POSITION OF ALIGNMENT OF SAID REFERENCE MEANS AND A SECOND INDICIA REPRESENTING A LESSER LIQUID CONTENT AND AT WHICH SAID OUTLET IS BELOW SAID LIQUID LEVEL, AN AMOUNT OF LIQUID EQUAL TO THE DIFFERENCE BETWEEN THE QUANTITIES REPRESENTED BY SAID FIRST AND SECOND INDICIA MAY BE FREELY DRAINED THROUGH SAID OUTLET, SAID VENT PERMITTING COMPLETE AND QUIESCENT DRAINAGE OF SAID AMOUNT.

Claim 2

AN APPARATUS FOR DISPENSING METERED QUANTITIES OF LIQUID COMPRISING: A CYLINDRICAL RECEPTACLE HAVING A CAPACITY OF APPROXIMATELY 55 GALLONS, MEANS FOR SUPPORTING SAID RECEPTACLE FOR ROTATION ABOUT ITS HORIZONTALLY DISPOSED LONGITUDINAL AXIS. A PLURALITY OF COPLANAR INDICIA RADIALLY AND EQUIDISTANTLY SPACED FROM SAID LONGITUDINAL AXIS ON ONE END WALL OF SAID RECEPTACLE, STATIONARY REFERENCE MEANS, CARRIED BY THE MEANS FOR SUPPORTING THE RECEPTACLE, FOR REFERENCING INDICIA CORRESPONDING TO POSITIONS OF RECEPTACLE ROTATION ABOUT ITS LONGITUDINAL AXIS, A VALVED LIQUID OUTLET EXTENDING THROUGH ONE END WALL OF SAID RECEPTACLE AND RADIALLY SPACED FROM SAID AXIS, A VENT EXTENDING THROUGH ONE END WALL OF SAID RECEPTACLE AND BEING RADIALLY SPACED FROM SAID AXIS DIAMETRICALLY OPPOSITE TO SAID VALVED OUTLET, EACH SAID INDICIA, WHEN ALIGNED WITH SAID REFERENCE MEANS BEING A FUNCTION OF THAT PORTION OF THE CAPACITY OF THE RECEPTACLE WHICH CANNOT BE DRAINED THROUGH SAID OUTLET AT THE ROTATIONAL POSITION OF SAID RECEPTACLE CORRESPONDING TO SAID INDICIA AND REFERENCE MEANS ALIGNMENT WHEREBY, BY ROTATING SAID RECEPTACLE ABOUT SAID AXIS TO INDEX THE RECEPTACLE FROM A POSITION OF A FIRST INDICIA AND REFERENCE MEANS ALIGNMENT AT WHICH THE LEVEL OF LIQUID WITHIN THE RECEPTACLE IS LEVEL WITH SAID OUTLET, TO A POSITION OF ALIGNMENT OF SAID REFERENCE MEANS AND A SECOND INDICIA REPRESENTING A LESSER LIQUID CONTENT AND AT WHICH SAID OUTLET IS BELOW SAID LIQUID LEVEL, AN AMOUNT OF LIQUID EQUAL TO THE DIFFERENCE BETWEEN THE QUANTITIES REPRESENTED BY SAID FIRST AND SECOND INDICIA MAY BE FREELY DRAINED THROUGH SAID OUTLET, SAID VENT PERMITTING COMPLETE AND QUIESCENT DRAINAGE OF SAID AMOUNT.