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Mechanism comprising a housing, a pair of cooperating levers supported on the housing for pivotal movement about fixed axes and reciprocal center drive member mounted in the housing and held captive between a pair of space opposed knife edge portions formed on the levers to a effect line contact engagement there with for providing a low friction drive for pivoting said levers.

Motion Conversion Mechanism

Motion Conversion Mechanism

Date:  May 1966

Inventor: Grant L. Willis