Abstract: A cutting bit assembly for a mining machine includes a holder having a first surface, a second surface, and a bore extending therebetween, and a bit having a first end and a second end. The bit further includes a tip, a shank, and a shoulder positioned between the tip and the shank. The shank is positioned in the bore of the holder and defines a shank axis. The shoulder engages the first surface of the holder. The shank includes a projection adjacent the second end. The cutting bit assembly also includes a retainer having a groove and a resilient member. The groove engages a portion of the projection. The resilient portion engages the second surface of the holder and biases the retainer along the shank axis and away from the holder.

Abstract: A pick tool comprising a strike tip and a pick tool body, the pick tool body including a non-rotating strike tip at a first end of the pick tool body. A shaft is provided at a second end of the pick tool body, the shaft being configured to pass through an opening in a surface of a pick tool holder, the shaft being configured in use to be non-rotationally attached to the pick tool holder. The shaft projects from a pick tool abutment surface such that, when the pick tool is attached to the pick tool holder, the abutment surface abuts the pick tool holder surface. The abutment surface has an aspect ratio between its length and width of between 1.5:1 and 3:1. The pick tool body comprises a leading edge and a trailing edge, the leading edge being, in use, the edge that first contacts a formation, the trailing edge having an angle of less than 18° between a main axis of the pick tool and an axis from the strike tip to the abutment surface at the trailing edge.

Abstract: A cutting bit assembly for a mining machine includes a holder having a first surface, a second surface, and a bore extending therebetween, and a bit having a first end and a second end. The bit further includes a tip, a shank, and a shoulder positioned between the tip and the shank. The shank is positioned in the bore of the holder and defines a shank axis. The shoulder engages the first surface of the holder. The shank includes a projection adjacent the second end. The cutting bit assembly also includes a retainer having a groove and a resilient member. The groove engages a portion of the projection. The resilient portion engages the second surface of the holder and biases the retainer along the shank axis and away from the holder.

Abstract: A magnetic device that includes a first wheel and a second wheel is provided. The first wheel has a first rotational axis and a plurality of first magnets. The second wheel is received at least in part within the first wheel. The second wheel has a second rotational axis that is generally perpendicular to the first rotational axis of the first wheel. The second magnetic wheel has a plurality of second magnets. The configuration of the plurality of first magnets and the plurality of second magnets creates magnetic fields that cause one of the first and second wheels to rotate when the other of the first and second wheels rotates.

Abstract: A magnetic device that includes a first wheel and a second wheel is provided. The first wheel has a first rotational axis and a plurality of first magnets. The second wheel is received at least in part within the first wheel. The second wheel has a second rotational axis that is generally perpendicular to the first rotational axis of the first wheel. The second magnetic wheel has a plurality of second magnets. The configuration of the plurality of first magnets and the plurality of second magnets creates magnetic fields that cause one of the first and second wheels to rotate when the other of the first and second wheels rotates.

Abstract: A method is provided for treatment and/or prevention of an infective condition in a fluid-containing organ having a natural exterior orifice, such as the udder of a milk-producing animal or an ear of a subject. The invention also relates to a dispersible pharmaceutical composition suitable for infusion into the organ according to the method of the invention, and to a process for preparing such a composition.

Abstract: A method is provided for treatment and/or prevention of an inflammatory condition in a fluid-containing organ having a natural exterior orifice, such as the udder of a milk-producing animal or an ear of a subject. The invention also relates to a dispersible pharmaceutical composition suitable for infusion into the organ according to the method of the invention, and a process for preparing such a composition.