A pipe tool with a base unit and peripheral components for holding or manipulating pipe sections. The peripheral components allow the pipe tool to be configured for holding pipes of various sizes in alignment so they may be welded at a seam. The tool can also be reconfigured for changing the cross sectional...http://www.google.de/patents/US20080230972?utm_source=gb-gplus-sharePatent US20080230972 - Pipe holding or manipulating tool
