Abstract: The invention provides a machine for tunnelling in rock. The machine includes a pilot drill assembly for drilling a series of interfering parallel holes or a pilot hole into and generally perpendicular into a rock face and a blast hole drill assembly for drilling a series of blasting holes around the pilot hole or previous blast hole. The machine further includes a charge handling and loading assembly for loading the first series of holes with propellant charges and an ignitor system for igniting the charges. Included further is a rock clearing means for removing the blast rock from the blast face and a rock pick for clearing and picking the floor, roof or walls to provide access for the machine into the tunnel and a mobility assembly for moving the machine forward.

Abstract: The invention provides a machine for tunnelling in rock. The machine includes a pilot drill assembly for drilling a series of interfering parallel holes or a pilot hole into and generally perpendicular into a rock face and a blast hole drill assembly for drilling a series of blasting holes around the pilot hole or previous blast hole. The machine further includes a charge handling and loading assembly for loading the first series of holes with propellant charges and an ignitor system for igniting the charges. Included further is a rock clearing means for removing the blast rock from the blast face and a rock pick for clearing and picking the floor, roof or walls to provide access for the machine into the tunnel and a mobility assembly for moving the machine forward.

Abstract: The Christmas tree supporting table includes a box support, a circular tabletop that has a hole about the middle and is divided into two sections that are hingedly connected. The box support contains the Christmas tree stand and a power strip for powering the Christmas tree lights. The circular tabletop folds flat upon the box and the Christmas tree stand and base of the Christmas tree. The supporting table elevates the Christmas tree, hides the Christmas tree stand, and provides a hiding place for a power strip to supply electricity to the Christmas tree lights.

Abstract: Apparatus for breaking rock includes a cartridge with a base and a wall which extends from the base, the base and the wall forming an enclosure, a propellant inside the enclosure and means for igniting the propellant, and wherein at least the wall is made from a malleable material adapted to reinforce the wall of a hole in the rock in which the cartridge is located.

Abstract: Apparatus for breaking rock which includes a cartridge (16) which forms an enclosure, a propellant (24) inside the enclosure, and at least one element (26) which is electrically energisable and which is made from inert material exposed to the propellant.

Abstract: Apparatus for breaking rock which includes a first cartridge (30) with a base (32) and a side wall (34) which form an enclosure, and a propellant (42) inside the enclosure, and wherein a discontinuous relatively weaker region (60) of the container is formed at a junction between the wall and the base.

Abstract: A propellant composition which includes a propellant material and an oxygen source material.