80 are illustrated in each of the embodiments it should be understood that embodiments having any number of connectors 80 are within the scope of the disclosure further although each connector 80 within an embodiment is substantially identical embodiments including different connectors are also considered within the disclosure each connector 80 includes a lever 82 pivotally mounted to the exterior of the base 62 the lever 82 is rotatable about a horizontal axis arranged substantially perpendicular to the axis a of the spindle 70 in the non limiting embodiment illustrated in fig3 each lever 82 includes a flange 84 having a contoured surface 86 generally complementary to an exterior of the container 40 although the flanges 84 are illustrated as having a width greater than that of the levers 82 embodiments where the flanges 84 have a width equal to or less than the levers 82 are also considered within the scope of the disclosure in an embodiment the flanges 84 and contoured surfaces 86 are sized to wrap about at least a quarter ninety degrees of the periphery of the container 40 the end 90 of the lever 82 adjacent the base 62 is coupled thereto via a linkage 88 such that the lever 82 is movable between a plurality of positions in an embodiment each of the.