1. 
   toggle joint
   [n] - a joint made by two arms attached by a pivot
   Found op http://www.webdictionary.co.uk/definition.php?query=toggle%20joint
   
   
2. 
   toggle joint
   noun a joint made by two arms attached by a pivot; used to apply pressure at the two ends by straightening the joint
   Found op http://wordnetweb.princeton.edu/perl/webwn?s=toggle%20joint
   
   
3. 
   Toggle-Joint
   A toggle-joint is an elbow or knee joint consisting of two bars so connected that they may be brought into a straight line, and made to produce great end-wise pressure.
   Found op http://www.probertencyclopaedia.com/browse/GT.HTM
   
   

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