Parallel valve control

Claim 1

IN AN INTERNAL COMBUSTION ENGINE OF THE KIND INCLUDING A CYLINDER HEAD AND DISPOSED THEREIN A PRIMARY AND A SECONDARY VALVE OPERATING IN PARALLEL, AND MEANS FOR ACTUATING SAID VALVES INCLUDING A VALVE ROCKER BRACKET MOUNTED ON THE CYLINDER HEAD, A VALVE ROCKER MOUNTED FOR ROCKING DISPLACEMENT ON SAID BRACKET, A PUSH ROD ABUTTING AGAINST SAID VALVE ROCKER, AND A PRESSURE MEMBER COMMON TO BOTH SAID VALVES PIVOTALLY MOUNTED ON SAID VALVE ROCKER, THE IMPROVEMENT WHICH COMPRISES: (A) A PIVOT FOR THE PRESSURE MEMBER SO ARRANGED ON THE VALV ROCKER AS TO BE DISPOSED SUBSTANTIALLY ON AN EXTENSION OF THE AXIS OF THE PRIMARY VALVE, (B) AN AUXILIARY MEMBER INTEPOSED BETWEEN AND IN ENGAGEMENT WITH SAID PRESSURE MEMBER AND SAID VALVE ROCKER BRACKET, (C) ADJUSTABLE MEANS MOUNTED ON THE SIDE OF SAID VALUE ROCKER REMOTE FROM THE VALVES FOR CONTROLLING THE ABUTMENT OF SAID PUSH ROD AGAINST SAID VALVE ROCKER, AND (D) ADJUSTABLE MEANS AT THE POINT OF ENGAGEMENT BETWEEN SAID AUXILIARY MEMBER AND SAID VALVE ROCKER BRACKET FOR CONTROLLING THE ABUTMENT OF SAID PRESSURE MEMBER AGAINST SAID SECONDARY VALVE.