Diesel engine converted into a twocycle gas engine

Claim 1

IN A DIESEL ENGINE CONVERTED INTO A TWO-CYCLE GAS ENGINE; AN ENGINE BLOCK PROVIDED WITH A CYLINDER HAVING A PISTON RECIPROCABLY MOUNTED THEREIN; A COMPARTMENT ENCIRCLING THE CYLINDER AND HAVING PORTS COMMUNICATING WITH THE CYLINDER; A SUPERCHARGER BLOWER COMMUNICATING WITH THE COMPARTMENT; SAID COMPARTMENT HAVING AN OPENING FORMED IN A WALL THEREOF; A BLOWER BOX PRESSURE RELIEF APPARATUS HAVING A HOLLOW BODY PORTION MOUNTED IN THE WALL AND PROJECTING THROUGH SAID OPENING INTO SAID COMPARTMENT; THE HOLLOW BODY DEFINING A CHAMBER IN ITS INTERIOR; SAID BODY HAVING AT LEAST ONE HOLE IN A SIDE THEREOF WHICH PROJECTS INTO SAID COMPARTMENT FOR COMMUNICATING WITH THE COMPARTMENT INTERIOR WHEN THE HOLLOW BODY IS RECEIVED IN SAID WALL OPENING; WHEREBY ANY EXCESSIVE PRESSURE IN THE COMPARTMENT CAN ESCAPE TO THE HOLLOW BODY; SAID BLOWER BOX APPARATUS HAVING A CUP-SHAPED COVER FOR THE HOLLOW BODY; SPRING-LOADED POPPET VALVES NORMALLY CLOSING PASSAGES BETWEEN THE HOLLOW BODY INTERIOR AND THE COVER INTERIOR; SAID COVER HAVING OPENINGS LEADING TO THE ATMOSPHERE FOR PERMITTING EXCESS PRESSURE IN THE HOLLOW BODY TO OPEN THE VALVES AND PERMIT ESCAPE OF EXCESS PRESSURE INTO THE COVER AND THENCE THROUGH THE COVER OPENINGS TO THE ATMOSPHERE; AND MEANS FOR SECURING THE APPARATUS TO THE ENGINE BLOCK.