Vertical coking retort with internal heating tubes

Claim 1

A COKE RETORT COMPRISING A CARBONIZING CHAMBER HAVING A CEILING AND A FLOOR VERTICALLY SHIFTABLE INTO SEALING AND OPENING POSITIONS ACROSS THE CHAMBER; SAID CEILING HAVING A PLURALITY OF PASSAGEWAYS THERETHROUGH; SAID FLOOR HAVING A PLURALITY OF OPENINGS THERETHROUGH ARRANGED TO BE IN ALIGNMENT ON A VERTICAL AXIS, ONE FLOOR OPENING WITH ONE CEILING PASSAGEWAY; SAID FLOOR OPEN INGS BEING OF LESS DIAMETER THAN THAT OF THE CEILING PASSAGEWAY; A PLURALITY OF HEATER TUBES, ONE FOR EACH CEILING PASSAGEWAY, EACH OF SAID TUBES BEING OPEN AT THE TOP AND CLOSED AT THE BOTTOM; A FLOOR OPENING CLOSURE MEMBER CARRIED ON THE LOWER END OF ECH OF SAID TUBES, DESIGNED TO BE CENTERED BY ENTERING THE FLOOR OPENING, CLOSE IT OFF, AND SUPPORT THE TUBE BY RESTING ABOUT THE MARGIN OF THE OPENING; SAID TUBES HAVING LENGTHS WHICH WILL POSITION THEIR UPPER END PORTIONS WITHIN THE CEILING PASSAGEWAY WHEN THE TUBES REST ON SAID MARGINS; SEALING MEANS IN SAID PASSAGEWAYS ENGAGING AROUND SAID TUBE UPPER PORTIONS PERMITTING LONGITUDINAL TRAVEL OF THE TUBES; A COMBUSTION BOX ACROSS SAID CEILING EXTERNALLY OF SAID CHAMBER AND POSITIONED TO EXTEND ABOVE AND BETWEEN TWO ADJACENT ROWS OF SAID CEILING PASSAGEWAYS, AND HAVING A SIDE OPENING FOR EACH OF THOSE PASSAGEWAYS; A PLURALITY OF COMBUSTION TUBES, ONE FOR EACH OF SAID HEATER TUBES, HAVING AN UPPER END ELBOWED TO PROVIDE AN OPENING THEREIN ON A HORIZONTAL AXIS; ELBOW AND BOX INTERENGAGING MEANS OPERABLE BY SUBSTANTIALLY VERTICAL TRAVEL FOR INTERCONNECTING THE ELBOW WITH THE BOX TO REGISTER THE ELBOW OPENING WITH A BOX OPENING, AND FROM WHICH MEANS SAID COMBUSTION TUBE IS SUSPENDED TO HANG IN EACH INSTANCE WITHIN SAID HEATER TUNES; SAID COMBUSTION TUBES BEING OPEN AT THEIR LOWER ENDS LOCATED IN THE LOWER END PORTIONS OF THE HEATER TUNES, AND HAVING A DIAMETER LESS THAN THE HEATER TUBES TO PROVIDE AN ANNULAR RETURN SPACE BETWEEN THE TUBES; MEANS BY WHICH SAID HEATER TUBES MAY BE PULLED FROM SAID CHAMBER THROUGH SAID CEILING PASSAGEWAYS; AND AN ABUTMENT ON EACH OF THE COMBUSTION TUBES IN THE PATH OF ITS HEATER TUBE WHEREBY THE COMBUSTION TUBE MAY BE LIFTED WITH THE HEATER TUBE; AND FUEL BURNERS UNDER SAID FLOOR DIRECTED TOWARD SAID FLOOR OPENINGS FOR CALCINING PURPOSES WHEN SAID TUBES ARE PULLED; SAID FLOOR PLATES HAVING THEIR UNDERSIDES DIRECTLY EXPOSED FROM THE UNDERSIDE OF SAID FLOOR.