Car windscreen wiper mechanism.
For details see:
http://www.meslab.org/mes/threads/22611-Bo-truyen-banh-rang-thanh-rang-phang?p=125670#post125670
Drawings of this mechanism are available at:
http://www.mediafire.com/?aaqimwwwo0vrxha
STEP files of this video:
http://www.mediafire.com/download/98zuovwmql52rsc/RackPinion2STEP.zip
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