Plaintiff, a 39 year old male welder, suffered a crush injury to his right foot and ankle when a 36" diameter by 20' long steel casing pipe slipped from the hydraulically operated jaws of a drilling machine. Plaintiff had been welding a specialized drilling bit to the end of the pipe when the pipe slipped. Plaintiff claimed negligent maintenance by the drill rig owner, negligence by the drill rig operator, and joint venture as to several other defendants.