Reciprocating piston driving or operating machines

Claim 1

IN A RECIPROCATING DRIVING OR OPERATING MACHINE OF THE TYPE HAVING AT LEAST ONE CYLINDER AND A PISTON MOVABLE IN THE CYLINDER BORE, THE CYLINDER AND THE PISTON BEING OF NON-CIRCULAR, CONJUGATED CROSS SECTION, A PLURALITY OF CIRCUMFERENTIAL SEALING RINGS LOCATED IN CIRCUMFERENTIAL GROOVES OF THE PISTON, EACH OF THE RINGS COMPRISING AT LEAST TWO FLEXIBLE SECTIONS IN END TO END RELATIONSHIP, RESILIENT MEANS MOUNTED FLOATINGLY AROUND THE ENTIRE CIRCUMFERENCE IN SAID GROOVES FOR URGING SAID RING SECTIONS AGAINST SUCH CYLINDER BORE, MEANS FOR MOUNTING SAID RESILIENT MEANS FLOATINGLY IN A RADIAL DIRECTION RELATIVE TO THE PISTON, SAID PISTON BEING PROVIDED WITH TRANSVERSE HOLES COMMUNICATING WITH SAID CIRCUMFERENTIAL GROOVES, A ROD SLIDABLY MOUNTED IN EACH HOLE AND HAVING ENDS PROTRUDING INTO SAID GROOVES, TWO OPPOSING BEARING SURFACES ON EACH OF SAID RODS, AND SAID RESILIENT MEANS COMPRISING A PLURALITY OF ARCUATED LEAF SPRINGS DISPOSED AROUND THE PERIPHERY OF SAID GROOVE, THE ENDS OF ADJACENT SPRINGS ABUTTING AGAINST SAID BEARING SURFACES ON SAID ROD ENDS, AND THE MIDDLE OF EACH SPRING BEARING AGAINST THE INNER SURFACE OF SAID SEALING RING SECTIONS.