Apparatus for testing the sticking properties of liquids

Claim 1

APPARATUS FOR TESTING THE STICKING PROPERTIES OF A LIQUID COMPRISING, IN COMBINATIN, A PAIR OF TESTING MEMBERS EACH HAVING A TESTING FACE AND BEING ARRNGED WITH SAID TESTING FACES DIRECTED TOWARDS EACH OTHER; SUPPORT MEANS CARRYING SAID TESTING MEMBERS AND MOUNTING AT LEAST ONE OF SAID TESTING MEMBAERS FOR MOVEMENT TOWARD AND AWAY FROM A POSITION WHERE SAID TESTING FACES ARE IN ENGAGEMENT WITH EACH OTHER; MOVING MEANS MOUNTED ON SAID SUPPORT FOR MOVING SAID ONE TESTING MEMBER TOWARD AND AWAY FROM SAID POSITION THEREOF, THE OTHER OF SAID TESTING MEMBERS BEING FORMED WITH AN OPENING PASSING THERETHROUGH, SAID SUPPORT MEANS COMPRISING A FIRST CYLINDER HAVING OPPOSITE OPEN ENDS AND BEING FIXED AT ONE END THEREOF TO THE SIDE OF SAID OTHER TESTING MEMBER OPPOSITE FROM SAID FACE THEREOF,SAID OPENING OF SAID OTHER TESTING MEMBER COMMUNICATING WITH THE INTERIOR OF SAID FIRST CYCLINDER, A BRACKET FIXED TO SAID FIRST CYLINDER AND HAVING A PORTION LOCATED OPPOSITE SAID OTHER TESTING MEMBER, AN ELONGATED MEMBER MOUNTED ON SAID BRACKET AND HAVING A TOP END SUPPORTING SAID ONE TESTING MEMBER, A ROD FIXED TO SAID TESTING FACE OF SAID ONE TESTING MEMBER AND EXTENDING THROUGH SAID OPENING OF SAID OTHER TESTING MEMBER INTO FIRST CYLINDER, A SOLENOID CORE PORTION FIXED TO THE TOP END OF SAID ROD, A TUBE OF NON-MAGNETIC MATERIAL LOCATED ABOUT SAID CORE PORTION, BEING MOUNTED ON SAID FIRST CYLINDER, COMMUNICATING WITH THE INTERIOR THEREOF, AND EXTENDING UPWARDLY THEREFROM, A SOLENOID COIL LOCATED ABOUT SAID TUBE AND AT LEAST PARTLY ABOUT SAID CORE PORTION, SAID COIL AND CORE PROTION FORMING PART OF SAID MOVING MEANS, AND SAID MOVING MEANS FURTHER INCLUDING SECOND CYLINDER LOCALED ON SAID TUBE AND COMMUNICATING WITH THE INTERIOR THEREOF, A PISTON SLIDABYL ENGAGING THE INTERIOR OF SAID SECOND CYLINDER FOR RECIPROCATING MOVEMENT THEREIN A SCREW MEMBER THREADEDLY CONNECTED WITH SAID PISTON, A BRACKET MOUNTED ON A EXTENDING UPWARDDLY FROM SAID SECOND CYLINDER, AND A MOTOR MOUNTED ON SAID BRACKET AND BEING CONNECTED TO SAID SCREW MEMBER FOR ROTATING THE LETTER TO RECIPROCATE SAID PISTON, SWITCH MEANS CARRIED BY SAID BRACKET AND BEING ELECTRICALLY CONNECTED TO SAID MOTOR FOR REVERSING THE SAME AND TO SAID COIL FOR ENERGIZING THE SAME, AND A PROJECTING PORTION FIXED TO AND ENTENDING FROM SAID PISTON TO ACTUATE SAID SWITCH MEANS DURING MOVEMEMT OF SAID PISTON; AND FORCE MEASURING MENS OPERATIVELY CONNECTED TO SAID MOVING MEANS FOR MEASURING THE FORCE EXERTED BY SAID MOVING MEANS TO MOVE SAID ONE TESTING MEMBER AWAY FROM SAID POSITION THEREOF WHEN A FILM OF LIQUID TO BE TESTED IS LOCATED BETWEEN AND IN ENGAGEMENT WITH SAID DTESTING FACES, AND FORCE MEASURING MEANS COMPRISING A DUT COMMUNICATING WITH THE INTERIOR OF SAID SECOND CYLINDER AND A GAS PRESSURE MEASURING APPARATUS COMMUNICATING WITH SAID DUCT.