A drilling apparatus including a magazine for holding a plurality of pipes, and a drive head is disclosed herein. The drive head includes a drive member adapted to be coupled to a pipe. The drive member is aligned along a drive axis. The drilling apparatus includes a first drive mechanism for rotating...http://www.google.co.uk/patents/US6814164?utm_source=gb-gplus-sharePatent US6814164 - Pipe loading device for a directional drilling apparatus
