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An ice-grinding device comprising a top cover, a helical pressing core, a disk cutter and container, whereby the disk cutter is mountable on the container, the helical pressing core is locatable within the disk cutter, the top cover is mountable on the disk cutter so as to engage the helical pressin

An ice-grinding device comprising a top cover, a helical pressing core, a disk cutter and container, whereby the disk cutter is mountable on the container, the helical pressing core is locatable within the disk cutter, the top cover is mountable on the disk cutter so as to engage the helical pressing core and it is also directly mountable on the container. The ice-grinding device may include means to control the fineness of the processed ice particles. The ice-grinding device may be adapted to process food.

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1. An ice-grinding device comprising a top cover, a helical pressing core, a disk cutter and container;whereby the disk cutter is mountable on the container, the helical pressing core is locatable within the disk cutter, the top cover is mountable on the disk cutter so as to engage the helical press

1. An ice-grinding device comprising a top cover, a helical pressing core, a disk cutter and container;whereby the disk cutter is mountable on the container, the helical pressing core is locatable within the disk cutter, the top cover is mountable on the disk cutter so as to engage the helical pressing core; wherein the top cover includes a spindle that protrudes from a centre of an underside of the top cover and a plurality of projections formed on an outer portion of a peripheral edge on an underside of the top cover; the helical pressing core includes a central hollow post to engage securely with the spindle of the top cover and a further hollow post that protrudes from a centre of an underside of the helical pressing core; the disk cutter includes a mounting post to engage freely with the further hollow post of the helical pressing core, an upper portion to receive the peripheral edge of the top cover, a plurality of protruding arcs formed on an inside of an upper portion of the disk cutter to engage securely with the plurality of projections formed on the peripheral edge of the top cover and a plurality of projections formed on an outside of a peripheral edge at a bottom of the disk cutter; and the container includes an upper portion to receive the peripheral edge of the disk cutter and a plurality of protruding arcs formed on an inside of the upper portion of the container to engage securely with the plurality of projections formed on the peripheral edge of the disk cutter. 2. An ice-grinding device as claimed in claim 1 wherein the top cover includes a rotatable handle that is drivably interconnected with the spindle such that when the spindle engages securely with the central hollow post the helical pressing core rotates as the handle rotates.3. An ice-grinding device as claimed in claim 2 wherein the helical pressing core includes a surface arranged helically around the central hollow post forming a passage along which ice can be pressed so as to move under the rotation of the helical pressing core and an opening in the base of the helical pressing core from which pressed ice may fall.4. An ice-grinding device as claimed in claim 1 wherein the disk cutter includes an opening through which a selected blade protrudes and ground ice may fall, a blade plate on which a plurality of different blades are disposed, a blade-selecting means to select a particular blade and a blade-locking device to lock the selected blade in position.5. An ice-grinding device as claimed in claim 4 wherein the blade plate includes a plurality of pressure plates fixed on a plate; and a plurality of blades with different rakes, whereby a blade is mounted on an upperside of each of the pressure plates and the blade plate co-operates with the blade-selecting means and blade-locking device.6. An ice-grinding device as claimed in claim 5 wherein the blade-selecting means includes a blade-selecting tab formed on the plate of the blade plate and arranged so that the plate can be moved so the selected blade is positioned adjacent the opening in the disk cutter.7. An ice-grinding device as claimed in claim 6 wherein the blade-locking device includes:an elongate shaft, a small cylindrical portion, a joining part and a blade-locking handle that are arranged so that when the blade-locking handle is rotated the elongate shaft applies pressure to the pressure plate of the selected blade to force the selected blade through the opening in the disk cutter. 8. An ice-grinding device as claimed in claim 1 wherein the top cover includes an opening through which lumps of ice may be fed into the device and a cover shaped to mate with and close the opening.9. An ice-grinding device comprising a top cover, a helical pressing core, a disk cutter and container, whereby the disk cutter is mountable on the container, the helical pressing core is locatable within the disk cutter, the top cover is mountable on the disk cutter so as to engage the helical pressing core and wherein the disk cutter includes:an opening through which a selected blade protrudes and ground ice may fall; a blade plate on which a plurality of different blades are disposed; a blade-selecting means to select a particular blade; and a blade-locking device to lock the selected blade in position. 10. An ice-grinding device as claimed in claim 9 wherein the top cover includes a spindle that protrudes from a centre of an underside of the top cover and a plurality of projections formed on an outer portion of a peripheral edge on an underside of the top cover; the helical pressing core includes a central hollow post to engage securely with the spindle of the top cover and a further hollow post that protrudes from a centre of an underside of the helical pressing core;the disk cutter includes a mounting post to engage freely with the further hollow post of the helical pressing core, an upper portion to receive the peripheral edge of the top cover, a plurality of protruding arcs formed on an inside of an upper portion of the disk cutter to engage securely with the plurality of projections formed on the peripheral edge of the top cover and a plurality of projections formed on an outside of a peripheral edge at a bottom of the disk cutter; and the container includes an upper portion to receive the peripheral edge of the disk cutter and a plurality of protruding arcs formed on an inside of the upper portion of the container to engage securely with the plurality of projections formed on the peripheral edge of the disk cutter. 11. An ice-grinding device as claimed in claim 10 wherein the top cover includes a rotatable handle that is drivably interconnected with the spindle such that when the spindle engages securely with the central hollow post the helical pressing core rotates as the handle rotates.12. An ice-grinding device as claimed in claim 11 wherein the helical pressing core includes a surface arranged helically around the central hollow post forming a passage along which ice can be pressed so as to move under the rotation of the helical pressing core and an opening in the base of the helical pressing core from which pressed ice may fall.13. An ice-grinding device as claimed in claim 9 wherein the blade plate includes a plurality of pressure plates fixed on a plate; and a plurality of blades with different rakes, whereby a blade is mounted on an upperside of each of the pressure plates and the blade plate co-operates with the blade-selecting means and blade locking device.14. An ice-grinding device as claimed in claim 13 wherein the blade-selecting means includes a blade-selecting tab formed on the plate of the blade plate and arranged so that the plate can be moved so the selected blade is positioned adjacent the opening in the disk cutter.15. An ice-grinding device as claimed in claim 14 wherein the blade-locking device includes:a elongate shaft, a small cylindrical portion, a joining part; and a blade-locking handle that are arranged so that when the blade-locking handle is rotated the elongate shaft applies pressure to the pressure plate of the selected blade to force the selected blade through the opening in the disk cutter. 16. An ice-grinding device as claimed in claim 9 wherein the top cover includes an opening through which lumps of ice may be fed into the device and a cover shaped to mate with and close the opening.