Overhead camshaft engine valve mechanism

Claim 1

IN AN INTERNAL COMBUSTION ENGINE HAVING A CYLINDER HEAD, INTAKE AND EXHAUST VALVES ARRANGED IN SAID HEAD, SAID VALVES INCLUDING VALVES STEMS, A VALVE STEMS, GUIDE FOR EACH SAID VALVE STEM INCLUDING AN INTERGAL THRUST CAP GUIDE CUP FORMING AN EXTENSION OF SAID VALVE STEM GUIDE, A THRUST CUP FOR CONTACT ENGAGEMENT WITH THE OUTER END OF SAID VALVE STEM RECIPROCATINGLY MOUNTED ON SAID THRUST CAP CUP, A COMPRESSION SPRING IN SAID THRUST CAP GUIDE AND IN COMPRESSIVE ENGAGEMENT WITH THE UPPER PORTION OF SAID VALVE STEM NORMALLY URGINGS SAID VALVE TO CLOSE, A CAMSHAFT DISPOSED BETWEEN SAID VALVE STEM GUIDE, A ROCKER ARM HAVING CONSTANT ENGAGEMENT WITH SAID CAMSHAFT AND SAID THRUST CAP, AND A LINK ANCHORING SAID ROCKER ARM TO SAID CYLINDER HEAD INCLUDING MEANS CONNECTING SAID LINK TO SAID CYLINDER HEAD PERMITTING LIMITED UNIVERSAL MOVEMENT OF SAID LINK WITH RESPECT TO SAID CYLINDER HEAD AND MEANS CONNECTING SAID ROCKER ARM TO SAID LINK PERMITTING A ROCKING MOVEMENT OF SAID ROCKER ARM WITH RESPECT TO SAID LINK.