Clutch Extractor : Part of the mechanism of a positive clutch found on presses and similar machines used for disengaging the clutch at the end of a stroke, and holding it disengaged until the next stroke is initiated
Ministry of Business, Innovation and Employment, Glossary of terms and acronyms, Wellington, New Zealand 2010. http://wwwsosh.govt.nz/resources/glossary-u.shtml, (Occupn Hlth and Sfty - Brit) {530}