Abstract: A continuous mining machine includes a main frame mounted on tracks for mobility, a cutter head mounted on a subframe which is adapted to be moved toward and away from the front of the main frame, a conveyor to collect mined material and convey it to the rear of the main frame, and a roof bolter supported on the main frame adjacent the front thereof, whereby, as the sub-frame is moved away from the front of the main frame and the cutter head mounted thereon operates to cut material to be mined, thereof bolter is simultaneously operated to perform roof bolting operations close to the face of the mine.

Abstract: A multi-purpose articulated transport unit adapted to transport any one of a number of attachments, the unit including a prime-mover and a trailer, with the trailer consisting of two sub-frames which are pivotably attached to allow pivoting about a horizontal axis, and a support on one of the sub-frames adapted to engage and retain the attachment on the trailer.