User:MichaelFrey/Roberts linkage

Roberts' linkage converts rotational motion to approximate straight-line motion.

The linkage was developed by Richard Roberts (1789-1864).

Classification
 * Grashof rocker-rocker
 * symmetrical four-bar linkage

Various
http://mechanical-design-handbook.blogspot.de/2010/11/roberts-straight-line-mechanism.html

http://www.gravity.uwa.edu.au/publication/Florin.pdf

http://www.kts.tul.cz/content/files/podklady/06SM.GB_Straight_line_linkages_fin15.pdf

http://www.brighthubengineering.com/machine-design/12694-kinematics-special-mechanisms-straight-line-mechanisms-two/

http://kmoddl.library.cornell.edu/model.php?m=277

http://scholarworks.rit.edu/cgi/viewcontent.cgi?article=5662&context=theses