Safety device for internal combustion engine

Claim 1

IN AN INTERNAL COMBUSTION ENGINE HAVING A CRANKCASE, A SUPPLY OF WATER FOR COOLING THE ENGINE, AND A DEVICE FOR STOPPING THE ENGINE, A SAFETY APPARATUS SELECTIVELY RESPONSIVE TO A PREDETERMINED LOSS OF WATER, FOR CRANKCASE AND TO A PREDETERMINED LOSS OF WATER, FOR ACTUATING THE DEVICE TO STOP THE ENGINE, SAID SAFETY APPARATUS COMPRISING IN COMBINATION: VALVE MEANS INCLUDING A HOUSING AND A RECIPROCABLE STEM A PORTION OF WHICH IS EXPOSED BEYOND SAID HOUSING, SAID VALVE OPERABLE IN ONE POSITION TO ACTUATE THE DEVICE; VALVE PLACEMENT MEANS INCLUDING A PLATE SECURED TO SAID STEM AND OPERABLE TO PLACE SAID VALVE MEANS IN SAID ONE POSITION, SAID VALVE PLACEMENT MEANS INCLUDING A PIVOTALLY MOUNTED LEVER, A MAGNET MOUNTED ON SAID HOUSING, A SHIELD NORMALLY HELD AGAINST SAID MAGNET BY THE MAGNETIC FORCE THEREOF, A SPRING COMPRESSED AGAINST SAID SHIELD AND TENDING TO FORCE SAID SHIELD AWAY FROM SAID MAGNET, A ROD SECURED TO SAID SHIELD AND SLIDABLY CONNECTED TO SAID VALVE PLACEMENT MEANS FOR EFFECTING MOVEMENT THEREON IN RESPONSE TO MOVEMENT OF SAID ROD AWAY FROM SAID MAGNET, AND A PROJECTION SECURED TO SAID ROD AND ENGAGING SAID LEVER, SAID PROJECTION ENGAGABLE WITH SAID PLATE TO MOVE SAID VALVE MEANS TO SAID ONE POSITION, AND FURTHER WHEREIN SAID PLATE IS SPACED SLIGHTLY FROM SAID PROJECTION SUCH THAT MOVEMENT OF SAID ROD IS UNDER POWER OF SAID SPRING UPON ENGAGEMENT THEREBY WITH SAID PLATE; FIRST MOTOR MEANS OPERABLY CONNECTED TO SAID LEVER AND RESPONSIVE TO A PREDETERMINED CRANKCASE PRESSURE TO PLACE SAID VALVE MEANS IN SAID ONE POSITION VIA SAID VALVE PLACEMENT MEANS; AND SECOND MOTOR MEANS OPERABLY CONNECTED TO SAID LEVER AND RESPONSIVE TO A PREDETERMINED LOSS OF WATER TO MOVE SAID VALVE PLACEMENT MEANS TO PLACE SAID VALVE MEANS IN SAID ONE POSITION.