Electrically operated starting aid for diesel engines

Claim 1

IN A STARTING SYSTEM FOR AN INTERNAL COMBUSTION ENGINE HAVING AN INTAKE MANIFOLD, CONTROL CIRCUIT MEANS FOR A STARTING AID DEVICE INCLUDING ELECTRICALLY OPERATED ACTUATING MEANS FOR SELECTIVELY INJECTING A SHOT OF STARTING AID INTO THE INTAKE MANIFOLD OF THE ENGINE, A NORMALLY OPEN CONTROL PUSH BUTTON SWITCH IN SAID CIRCUIT MEANS, AND A NORMALLY CLOSED THERMALLY SENSITIVE SWITCH IN SAID CIRCUIT MEANS HAVING A THERMAL ELEMENT CONNECTED TO THE EXHAUST MANIFOLD OF THE ENGINE TO OPEN THE THERMALLY SENSITIVE SWITCH WHEN THE EXHAUST MANIFOLD REACHES ENGINE OPERATING TEMPERATURES, WHEREBY SAID STARTING AID ACTUATING MEANS CAN BE ACTUATED ONLY UPON OPERATION OF THE CONTROL PUSH BUTTON SWITCH WHEN SAID THERMALLY SENSITIVE SWITCH IS CLOSED, SAID ACTUATING MEANS COMPRISING A SOLENOID MOTOR HAVING AN ARMATURE PLUNGER COMPRISING A PISTON MOVABLE AXIALLY FROM A FIRST TO A SECOND POSITION UPON ENERGIZATION OF SAID COIL, A TANK OF STARTING AID LIQUID, A CYLINDER IN WHICH SAID PISTON MOVES INCLUDING A COUPLING CONNECTION AT ONE END FOR ATTACHMENT TO SAID TANK OF LIQUID, SAID CYLINDER INCLUDING SHOULDERS AT OPPOSITE ENDS THEREOF PRESCRIBING THEREBETWEEN A MEASURING CHAMBER, SAID PLUNGER HAVING SPACED O RINGS EACH ENGAGEABLE WITH ONE OF SAID SHOULDERS WHEN SAID PLUNGER IS AT EITHER SAID FIRST OR AT SAID SECOND POSITION, SAID TANK HAVING A SAFETY VALVE ENGAGED BY SAID PLUNGER, SAID CYLINDER AND SAID PLUNGER OPERABLE TO ADMIT A MEASURED QUANTITY OF LIQUID FROM SAID TANK INTO SAID MEASURING CHAMBER, AND CONDUIT MEANS CONNECTING SAID MEASURING CHAMBER TO THE INTAKE MANIFOLD OF THE ENGINE.