Patent ID: 8672417
Filing Date: 2014-03-18
Classification: E21C

Abstract:
1. A method of taking a rock sample for assay purposes in an underground mine including the steps of: providing an apparatus for cutting rock samples from a rock face, the apparatus including an elongate guide; an oscillating disc cutter mounted for rectilinear movement along the guide; and a mount operable to position and hold the elongate guide in a desired location relative to an adjacent rock face such that the oscillating disc cutter can be moved along the guide to cut a straight groove of controlled width and depth in the rock face; positioning the guide in a desired location across a rock face to be cut; holding the guide in the desired location by operating the mount to engage adjacent rock walls; operating the oscillating disc cutter along the guide to cut a groove of controlled width and depth in the rock face; and collecting the rock cut from the groove.