Apparatus for determining the resistance of moving bodies

Claim 1

IN AN APPARATUS FOR DETERMINING THE RESISTANCE OF IRREGULARLY SHAPED BODIES OF MATERIAL MOVING THROUGH A RESISTANCE DETERMINING ZONE, HANDLING MEANS FOR INTRODUCING THE BODIES OF MATERIAL IN SINGLE ROW ALIGNMENT INTO THE UPPER PART OF SAID SORTING ZONE FOR MOVEMENT THERETHROUGH UNDER THE INFLUENCE OF GRAVITY IN A PREDETERMINED PATH, A PAIR OF BRUSHES MOUNTED IN SAID ZONE ON OPPOSITE SIDES OF SAID PATH AND HAVING BRISTLES EXTENDING INTO SAID PATH, THE BRUSHES BEING MOUNTED WITH THE BRISTLES BEING INCLINED INWARDLY AND DOWNWARDLY IN THE DIRECTION OF SAID PATH AND THE BRISTLES OF SAID BRUSHES HAVING TERMINATING ENDS SPACED FROM ONE ANOTHER, A WATER RESERVOIR FOR EACH SAID BRUSH, AID RESERVOIRS BEING ELECTRICALLY INSULATED ONE FROM THE OTHER, WATER CONDUCTING MEANS FOR EACH SAID BRUSH EXTENDING FROM A RESPECTIVE RESERVOIR TO A RESPECTIVE BRUSH TO PROVIDE A SUPPLY OF WATER ON THE BRISTLES OF EACH BRUSH, AND A MEASURING DEVICE HAVING AN ELECTRICAL SUPPLY AND BEING CONNECTED WITH THE BRISTLES OF EACH SAID BRUSH FOR DETERMINING THE ELECTRICAL RESISTANCE OF A BODY OF MATERIAL CONTACTING THE BRISTLES OF EACH SAID BRUSH.