Abstract: A drill slide (1) for a drilling apparatus, the slide (1) adapted to slidably support a drifter (6), the slide (1) comprising a telescopic shaft (2) having a first elongate member (3) telescopically slidable with respect to a second elongate hollow member (4); a first rail mounted to or integral with the second elongate hollow member (4) upon which the drifter (6) travels along; and wherein a second removable rail (7) is adapted to be fitted adjacent to the first elongate member (3) in an extended configuration, where the second rail (7) is end to end with the first rail (5) thereby allowing the drifter (6) to slide along the first (5) and second rails (7).

Abstract: A drill slide (1) for a drilling apparatus, said slide (1) adapted to slidably support a drifter (6), said slide (1) comprising a telescopic shaft (2) having a first elongate member (3) telescopically slidable with respect to a second elongate hollow member (4); a first rail mounted to or integral with said second elongate hollow member (4) upon which said drifter (6) travels along; and wherein a second removable rail (7) is adapted to be fitted adjacent to said first elongate member (3) in an extended configuration, where said second rail (7) is end to end with said first rail (5) thereby allowing said drifter (6) to slide along said first (5) and second rails (7).

Abstract: An articulated boom arm for a rock boring machine, comprising a first kinked member having a drill guide at one end and a base pivot at the other end, and a pair of pivoted links. One of said links having a first end pivoted at said base pivot, the other of the links having a drill pivotally mounted at a first end thereof. The second ends of The first and second links being pivoted to each other whereby said drill is reciprocally linearly movable along said first member with a drill bit aligned with said drill guide and at one extremity of the reciprocal movement both said pair of links are substantially longitudinally aligned and extend towards said drill guide, and at the other extremity of the reciprocal movement both said pair of links are substantially longitudinally aligned and extend away from said drill guide.

Abstract: An articulated boom arm for a rock boring machine, comprising a first kinked member having a drill guide at one end and a base pivot at the other end, and a pair of pivoted links. One of said links having a first end pivoted at said base pivot, the other of the links having a drill pivotally mounted at a first end thereof. The second ends of The first and second links being pivoted to each other whereby said drill is reciprocally linearly movable along said first member with a drill bit aligned with said drill guide and at one extremity of the reciprocal movement both said pair of links are substantially longitudinally aligned and extend towards said drill guide, and at the other extremity of the reciprocal movement both said pair of links are substantially longitudinally aligned and extend away from said drill guide.