Automatic carbon determinator

Claim 1

IN AN AUTOMATIC CARBON DETERMINATOR, FURNACE MEANS FOR BURNING A SAMPLE TO BE ANALYZED IN AN OXYGEN ATMOSPHERE TO CONVERT THE CARBON THEREIN TO CARBON DIOXIDE MIXED WITH AN EXCESS OF OXYGEN, THE LEAST SAID MEANS OPERATING WHEN ELECTRICALLY ENERGIZED, A FIRST CONTAINER FOR HOLDING A FIXED QUANTITY OF GAS AT ATMOSPHERE PRESSURE, A SECOND CONTAINER ADAPTED TO CONTAIN ALL OF THE GAS HELD BY THE FIRST SAID CONTAINER AND TO REMOVE ANY CARBON DIOXIDE THEREFROM, FIRST CONDUIT MEANS CONNECTING THE BURING MEANS TO THE TOP OF THE FIRST CONTAINER MEANS, SECOND CONDUIT MEANS INTERCONNECTING THE TOPS OF SAID FIRST AND SECONAD CONTAINER MEANS, FIRST AND SECOND ELECTRICALLY ACTUATED SHUTOFF VALVE MEANS IN SAID FIRST AND SECOND CONDUIT MEANS RESPECTIVELY,DIFFERENTIAL PRESSURE ACTUATED MEANS CONNECTED TO BE RESPONSIVE TO THE DIFFERENTIAL PRESSURE BETWEEN SAID FIRST CONTAINER MEANS AND THE ATMOSPHERE AND TO ACTUATE AN ELECTRIC SWITCH CONNECTED THERETO WHEN SAID DIFFERENTIAL PRESSURE IS SUBSTANTIALLY ZERO, CYCLE TIMER MEANS ADAPTED TO TIME A CYCLE OF OPERATION WHEN ENERGIZED,ELECTRICALLY ACTUATED MEANS FOR FORCING LIQUID INTO AND WITHDRAWING LIQUID FROM THE LOWER END OF THE FIRST CONTAINER MEANS, FIRST AND SECOND ELECTRICALLY ACTUATED VALVE MEANS FOR VENTING SAID BURNING MEANS TO THE ATMOSPHERE AND FOR VENTING SAID FIRST CONTAINER MEANS TO THE ING SAID CYCLE TIMER, AND VALVES SAID DIFFERENTIAL PRESSURE SWITCH, SAID BURING MEANS, AND SAID LIQUID FORCING MEANS TO OPEN BOTH SAID VENT VALVES TO SAID LIQUID FORCING INTO THE FIRST SAID CONTAINER AND DISPLACE ALL OF THE GAS THERIN, SUBSEQUENTLY TO CLOSE BOTH SAID VENT VALVES AND TO OPEN SAID FIRST CONDUIT VALVE AND ENERGIZE SAID BURNING MEANS TO DISPLACE LIQUID IN SAID FIRST CONTAINER BY GAS FROM SAID BURNING MEANS UNTIL SAID FIRST CONTAINER HOLDS ALMOST SAID FIXED QUANTITY OF GAS, SUBSEQUENTLY TO CLOSE SAID FIRST CONDUIT VALVE AND OPEN BOTH SAID VENT VALVES AND TO COMPLETE THE FILLING OF SAID FIRST CONTAINER WITH GAS AT ATMOSPHERIC PRESSURE AND TO OPEN SAID SECOND CONDUIT VALVE AND THEN CLOSE SAID SECOND VENT VALVE AND TO ACTUATE SAID LIQUID FORCING MEANS TO FILL SAID FIRST CONTAINER WITH LIQUID TO TRANSFER SAID FIXED QUANTITY OF GAS FROM SAID FIRST CONTAINER TO SAID SECOND CONTAINER SUBSEQUENTLY TO ACTUATE SAID FORCING MEANS TO WITHDRAW LIQUID FROM SAID FIRST CONTAINER TO RETURN THE GAS FROM SAID SECOND CONTAINER TO SAID FIRST CONTAINER, MEANS TO INTERRUPT SAID WITHDRAWAL OF LIQUID WHEN SAID DIFFERENTIAL PRESSURE RESPONSIVE SWITCH IS ACTUATED BY ZERO DIFFERENTIAL PRESSURE, AND MEANS INCLUDING SAID CYCLE TIMER FOR SUBSEQUENTLY DEENERGIZING SAID CYCLE TIMER.