Tile surfacing for a classifier or centrifuge scrool

A tile carrier to receive a tile, comprising:

• (i) a transverse, tile receiving groove defined at least in part by a base and an upwardly projecting lip formation;
• (ii) a downwardly projecting lip formation to provide mechanical resistance to tile removal to supplement adhesive securing of a tile to a carrier;
• (iii) a surface projecting forwardly from the base of the tile receiving groove;
• (iv) the upwardly projecting lip formation extends from an end of the surface distal from the base so that the upwardly projecting lip formation is displaced forwardly with respect to the downwardly projecting lip formation, and
• (v) an aperture communications between the base of the groove and a rear surface of the tile carrier.

A tile and carrier combinations, wherein the tile includes a front working face and a rear mounting face defined by an upper face portion and a lower face portion spaced rearwardly from the upper face portion, the upper and lower face portions being in parallel planes;

• an upwardly projecting, upper lip formation defining an upper edge of the face portion;
• and a downwardly projecting lower lip defining a lower edge of both the face portion and the tile, wherein the lower lip is defined by a chamfered face extending towards the face portion with a lower surface of lower lip being non-pointed, and stepped upwardly from a geometrically projected apex, and wherein the carrier includes:
• a transverse, tile receiving groove defined at least in part by a base and an upwardly projecting lip formation;
• a downwardly projecting lip formation to provide mechanical resistance to tile removal to supplement adhesive securing of a tile to a carrier;
• a surface projecting forwardly from the base of the tile receiving groove, wherein the upwardly projecting lip formation extends from an end of the surface distal from the base so that the upwardly projecting lip formation is displaced forwardly with respect to the downwardly projecting lip formation, wherein an adhesive accommodating space is defined by a rear face of a tile and the base of the groove.

A scroll or other rotary member of apparatuses such as a classifier or centrifuge characterized in that it is provided with a plurality of tile and carrier combinations in side-by-side array such that the combinations are in closely spaced, abutting relationship, whereby lateral displacement of a tile is precluded, wherein each combination includes a tile that includes a front working face and a rear mounting face defined by an upper face portion and a lower face portion spaced rearwardly from the upper face portion, the upper and lower face portions being in parallel planes;

• an upwardly projecting, upper lip formation defining an upper edge of the face portion;
• and a downwardly projecting lower lip defining a lower edge of both the face portion and the tile, wherein the lower lip is defined by a chamfered face extending towards the face portion with a lower surface of lower lip being non-pointed, and stepped upwardly from a geometrically projected apex, and wherein each carrier includes:
• a transverse, tile receiving groove defined at least in part by a base and an upwardly projecting lip formation;
• a downwardly projecting lip formation to provide mechanical resistance to tile removal to supplement adhesive securing of a tile to a carrier;
• a surface projecting forwardly from the base of the tile receiving groove, wherein the upwardly projecting lip formation extends from an end of the surface distal from the base so that the upwardly projecting lip formation is displaced forwardly with respect to the downwardly projecting lip formation, wherein an adhesive accommodating space is defined by a rear face of a tile and the base of the groove.