Photoelectric comparison apparatus for indicating the amount of contamination in liquids

Claim 1

APPARATUS FOR CONTINUOUSLY TESTING TRANSPARENT LIQUIDS COMPRISING, IN COMBINATION: (A) A FILTER ADAPTED FOR MICRON PARTICLE SELECTIVITY, SAID FILTER COMMUNICATING WITH THE LIQUID UNDER TEST TO RECEIVE SAMPLINGS THEREOF, (B) A FIRST CONTAINER MEANS INCLUDING A TRANSPARENT TUBULAR PORTION CONNECTED TO SAID FILTER TO RECEIVE FILTERED LIQUID THEREFROM, SID FILTERED LIQUID SERVING AS A REFERENCE LIQUID. (C) A SECOND CONTAINER MEANS INCLUDING A TRANSPARENT TUBULAR PORTION CONNECTED WITH THE LIQUID UNDER TEST TO RECEIVE UNFILTERED SAMPLINGS THEREOF, (D) A LIGHT SOURCE MEANS DISPOSED ADJACENT THE FIRST AND A SECOND TRANSPARENT CONTAINERS, (E) PHOTOMETRIC CELLS DISPOSED ADJACENT ONE END OF EACH OF THE FIRST AND SECOND TRANSPARENT CONTAINERS FOR MEASURING THE INTENSITY OF LIGHT ORIGINATING AS REFLECTED LIGHT FROM PARTICLES OF ADULTERANT MATERIAL CONTAINED IN SAID FILTERED AND UNFILTERED LIQUID SAMPLINGS (F) MEANS SURROUNDING THE END PORTIONS OF THE FIRST AND SECOND TRANSPARENT CONTAINERS FOR SHIELDING SAID PHOTOMETRIC CELLS FROM DIRECT AND INCIDENT BEAMS OF SAID LIGHT SOURCE THEREBY LIMITING THE ENERGIZATION OF SAID PHOTOMETRIC CELLS ESSENTIALLY TO SCATTERED LIGHT PRODUCED CONTINUOUSLY BY ADULTERANTS IN SAID LIQUID, (G) SAID PHOTOMETRIC LIQUID CELLS CONNECTED IN PARALLEL WITH OPPOSITE POLARITIES SO THAT THEIR NET SIGNAL PROVIDES A MEASUREMENT OF ADULTERATIONS IN THE UNFILTERED LIQUIDS, AND (H) METER MEANS FOR RECEIVING THE NET SIGNAL FROM SAID PHOTOMETRIC CELLS TO CONTINUOUSLY PROVIDE AN INDICATION OF ADULTERATION AMOUNT.