Concrete mixer drum

Claim 1

IN A ROTATABLE MIXING DRUM HAVING A HEAD SECTION INCLUDING THE CLOSED END OF THE DRUM, SAID DRUM BEING ADAPTED TO BE SUPPORTED FOR ROTATION IN EITHER DIRECTION ABOUT THE LONGITUDINAL AXIS THEREOF WITH SAID AXIS INCLINED SO THAT THE SMALLER OPEN END OF THE DRUM IS DISPOSED ABOVE SAID CLOSED END, BLADE MEANS FIXED ON AND PROJECTING FROM THE INNER WALL OF SAID DRUM HEAD SECTION, SAID BLADE MEANS BEING SO ARRANGED WITH RELATION TO THE AXIS OF THE DRUM AND EXTENDING TO SAID CLOSED END OF THE DRUM AS TO MOVE MATERIALS IN THE DRUM TOWARD SAID CLOSED END IN A CHARGING AND MIXING ACTION UPON ROTATION OF THE DRUM IN ONE DIRECTION, FLANGE MEANS SECURED TO THE INNER PERIPHERY OF SAID BLADE WITH SAID FLANGE EXTENDING FROM SAID BLADE IN ONE DIRECTION ONLY TOWARD THE CLOSED END OF SAID DRUM WHEREBY THE INGREDIENTS ADJACENT THE INNER SURFACE OF THE DRUM WILL BE FORCED TOWARD SAID DRUM HEAD DURING THE MIXING ACTION WITH THE INNERMOST INGREDIENTS BEING SHIFTED IN THE OPPOSITE DIRECTION THROUGH THE CENTRAL CORE OF SAID DRUM TO PROVIDE A THOROUGH MIXING ACTION WITH A MINIMUM NUMBER OF ROTATIONS OF SAID DRUM.