Abstract: A cyclone assembly comprising a hollow body having a generally conical portion and a tubular insert body having a generally conical portion disposed at least partially within said hollow body coaxial therewith and adjacent the smaller end of the conical portion of said hollow body, the hollow body and the insert body having interengageable formations, projecting as to one of the bodies and receiving as to the other, for preventing longitudinal movement of the insert body with respect to the hollow body.

Abstract: A gauge means according to the present invention comprises a gauge face and indicator means disposed adjacent the face, at least a part of the indicator means extending along the face in a first direction, and at least a part of the indicator means being movable along the face in a second direction generally transverse to the first. A first scale comprises a first series of indicia marks progressing longitudinally along the extending part of the indicator. Each mark of the first series corresponds to a given value of a first parameter. A second scale comprises a second series of indicia lines each of which extends along the face angularly with respect to the first and second directions. Each line of the second series corresponds to a given value of a second parameter. The movement of the movable part of the indicator means is responsive to a third parameter. The first, second, and third parameters are functionally related.

Abstract: The invention pertains to a liner for a cyclone comprising a body whose inner surface defines a longitudinal passageway through the body, the passageway including a conical section, the surface defining the passageway having a lesser wear portion and a greater wear portion. The liner body comprises a hollow bladder with an internal circumferential recess and a generally tubular insert disposed in the recess. The insert defines the greater wear portion of the passageway.