Abstract: A mobile plant for orienting a tool with respect to a hole is provided. The plant includes an arm assembly for supporting a tool wherein the tool is adapted to be lowered into the hole. The plant also includes a primary sensor for sensing the geographical location of the tool, and a secondary sensor for sensing the location and/or orientation of the hole. In use, the plant adjusts the position of the tool supported by the arm assembly based on the geographical location sensed by the primary sensor and the location and/or orientation sensed by the secondary sensor, in order to align the tool supported by the arm assembly with the hole.

Abstract: Apparatus and system for mixing and dispensing accurately pre-measured powdered material. The apparatus comprising of a cap, a dispensing teat or similar, a screw down top with a fixed or removable plate insert, a powder keg and a bottle or similar, together with a system, wherein by rotating a screw down top with a fixed or removable plate insert engages a pre-sealed powder keg containing accurately pre-measured powdered material which acts to open and release the accurately pre-measured powdered material into a volume of liquid or similar.

Abstract: In one aspect, the present invention relates to a mobile plant for orienting a tool with respect to a hole, the plant comprising: an arm assembly for supporting a tool, the tool being adapted to be lowered into the hole; a primary sensor for sensing the geographical location of the tool; and a secondary sensor for sensing the location and/or orientation of the hole; wherein the plant is adapted to adjust the position of the tool supported by the arm assembly based on the geographical location sensed by the primary sensor and the location and/or orientation sensed by the secondary sensor, to thereby align the tool supported by the arm assembly with the hole. In other aspects the present invention relates to a plant, to methods of using the plant, and to a boom arm assembly.