Through dowel construction for rotary mechanisms

Claim 1

AN OUTER BODY FOR A ROTARY COMBUSTION ENGINE HAVING AN INNER BODY SUPPORTED FOR RELATIVE ROTATION WITH SAID OUTER BODY AND MEANS FOR INITIATING COMBUSTION ADJACENT ONE ZONE OF SAID OUTER BODY SUCH THAT SAID ONE ZONE OF SAID OUTER BODY IS EXPOSED TO RELATIVELY HIGH TEMPERATURES AND PRESSURES THAN THE REMAINDER OF SAID OUTER BODY, SAID OUTER BODY COMPRISING (A) A PAIR OF PARALLEL SPACED END WALLS; (B) AN INTERMEDIATE WALL DISPOSED BETWEEN AND INTERCONNECTED WITH SAID END WALLS TO FORM A CAVITY; (C) LIQUID COOLANT PASSAGE MEANS IN SAID END WALLS AND SAID INTERMEDIATE WALL FOR FLOW OF A LIQUID COOLANT BETWEEN SAID END WALLS AND SAID INTERMEDIATE WALL; (D) A DOWEL STRUCTURE FOR MAINTAINING ALIGNMENT OF SAID END WALLS WITH SAID INTERMEDIATE WALL, SAID DOWEL STRUCTURE INCLUDING; (E) A PLURALITY OF PAIRS OF AXIALLY-SPACED BOSSES CARRIED BY SAID INTERMEDIATE WALL AT LEAST IN THE ONE ZONE OF SAID INTERMEDIATE WALL EXPOSED TO COMBUSTION WITH SAID BOSSES BEING DISPOSED IN THE LIQUID COOLANT PASSAGE MEANS OF SAID INTERMEDIATE WALL;