Method and apparatus for regulating the fat content of centrifugally separated cream

Claim 1

APPARATUS FOR USE IN REGULATING THE FAT CONTENT OF CREAM DISCHARGED FROM A CENTRIFUGAL SEPARATOR HAVING SEPARATE SKIM MILK AND CREAM OUTLETS, WHICH COMPRISES RESISTANCE CELL MEANS, PIPES COMMUNICATING WITH THE CELL MEANS FOR PASSING SEPARATELY THERETHROUGH SKIM MILK AND CREAM DISCHARGED FROM THE SEPARATOR, A WHEATSTONE BRIDGE HAVING FOUR RESISTANCE ARMS INCLUDING TWO RESISTORS MAINTAINED AT PREDETERMINED VALUES PROPORTIONED SUBSTANTIALLY IN THE RATIO OF THE ELECTRICAL RESISTANCES OF THE SEPARATED SKIM MILK AND CREAM AT A PREDETERMINED FAT CONTENT OF THE CREAM, MEANS FOR CONNECTING THE RESISTANCE CELL MEANS INTO AT LEAST ONE OF SAID ARMS WHICH DOES NOT INCLUDE EITHER OF SAID RESISTORS, THE BRIDGE HAVING TWO PAIRS OF OPPOSING CORNERS BETWEEN WHICH THE RESISTANCE ARMS ARE CONNECTED, AN ALTERATING CURRENT SOURCE CONNECTED ACROSS ONE PAIR OF OPPOSING CORNERS, AND AN ELECTRICAL POTENTIAL INDICATOR CONNECTED ACROSS THE OTHER PAIR OF CORNERS.