In kinematics, the Hoecken linkage (named for Karl Hoecken) [1] is a four-bar linkage that converts rotational motion to approximate straight-line motion. The Hoecken linkage is a cognate linkage of the Chebyshev linkage and Chebyshev's Lambda Mechanism.
The linkage was first published in 1926. [2] [3]
A generalization of the Hoecken linkage is Wittgenstein's rod.
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