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An Apparatus for mixing, comprising a tumble-blender adapted to receive and tumble a container to mix the contents of the container. The apparatus includes a drive means for driving a mixer of the container. The drive means is adapted to dock with the mixer when the container is received by the tumb

An Apparatus for mixing, comprising a tumble-blender adapted to receive and tumble a container to mix the contents of the container. The apparatus includes a drive means for driving a mixer of the container. The drive means is adapted to dock with the mixer when the container is received by the tumble-blender to enable operation of the mixer by the drive means. The drive is movably mounted, relative to the tumble-blender, to facilitate docking of the drive means with the mixer.

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1. Apparatus for mixing, comprising a tumble-blender adapted to receive and tumble a container to mix the contents of the container, the apparatus including a mixer, drive means for driving the mixer, the drive means being adapted to dock with the mixer when the container is received by the tumble-b

1. Apparatus for mixing, comprising a tumble-blender adapted to receive and tumble a container to mix the contents of the container, the apparatus including a mixer, drive means for driving the mixer, the drive means being adapted to dock with the mixer when the container is received by the tumble-blender to enable operation of the mixer by the drive means, wherein the apparatus comprises a top assembly comprising a base comprising upper and lower plates, the lower surface of the upper plate having a mounting plate movable thereto and mounted on bolts, the mounting plate mounting a dependent guide cylinder that extends downwardly through and out of a correspondingly sized circular aperture in the lower plate; the apparatus further comprising pneumatic bellows clamps provided between the mounting plate and the lower plate; wherein the mixer comprises a mixer shaft comprising a tapered guide boss adapted to be received by the guide cylinder provided on the mounting plate, and wherein the drive means comprises a drive motor; wherein the correct alignment of the drive means with the mixer is assisted by the tapered inner surface of the guide cylinder and the shoulders of the tapered guide boss, such that the drive means is movable laterally, relative to the tumble-blender, to facilitate docking of the drive means with the mixer; wherein the mounting plate is mounted so as to allow it to move laterally, relative to the base, the extent of lateral movement being limited by the size of the gap between the wall of the dependent guide cylinder and the wall of the aperture; and wherein the drive motor is mounted on the blender such that the mounting plate has a limited degree of lateral movement. 2. Apparatus according to claim 1, wherein the drive means is adapted to drive a rotatable mixer of the container. 3. Apparatus according to claim 1, wherein the drive means is movable by a part of a mixer of the container. 4. Apparatus according to claim 1, including means to prevent movement of the drive means relative to the blender, after docking has occurred. 5. Apparatus according to claim 1, the tumble-blender including receiving means for receiving the container for tumble-blending, the receiving means being mounted to a non-moving support to move the container on an asymmetric axis. 6. Apparatus according to claim 5, wherein the receiving means comprises a frame, the frame being adapted to clamp containers of different sizes. 7. Apparatus according to claim 1, further comprising a closure adapted to obturate an aperture of a container for mixing, the closure including a mixer for mixing the contents of the container, the drive means being adapted to dock with the mixer when the container is received by the tumble-blender to enable operation of the mixer by the drive means. 8. Apparatus according to claim 7, the mixer comprising a rotatable mixer. 9. Apparatus according to claim 8, the drive means and the mixer including mutually interengagable and releasable rotational coupling means. 10. Apparatus according to claim 9, including means adapted to provide for correct engagement of the coupling means. 11. Apparatus according to claim 10, wherein the correct engagement means is adapted to provide for correct rotational adjustment of the rotational coupling means. 12. Apparatus according to claim 11, the correct engagement means comprising a sensor to sense the relative positions of the rotational coupling means and control means adapted to control the speed of rotation of the drive means on start-up such that correct rotational adjustment of the coupling means occurs. 13. Apparatus according to claim 12, the rotational coupling means comprising, on the drive means, a linearly reciprocable drive-shaft rotatable about an axis of rotation and including one or more drive projection projecting substantially parallel with the said axis of rotation, and on a blade means, a rotatable drive shaft comprising one or more driving lug disposed to mesh with the drive projection when correct rotational adjustment is achieved, a sensor means being adapted to sense the position of a part of the coupling means along the said axis of rotation. 14. Apparatus according to claim 7, the closure including means for fluid dosing of the container. 15. Apparatus according to claim 14, the fluid dosing means including a nozzle, the nozzle comprising an inlet for fluid in fluid communication with at least one port for dosing of fluid into the container, and a closure for the ports, operable to close the ports from within the nozzle. 16. Apparatus according to claim 1, wherein the drive means comprises a linearly reciprocable drive shaft and wherein the apparatus comprises a sensor means adapted to sense the relative positions of the drive means and mixer and to provide for correct engagement.