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Hoecken linkage
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<p>In <a href="/facts/Kinematics/o7mSyeJA">kinematics</a>, the Hoecken linkage (named for Karl Hoecken) is a <a href="/facts/Four-bar_linkage/msDSKkPK">four-bar linkage</a> that converts <a href="/facts/Rotational_motion/yChkz49x">rotational motion</a> to approximate <a href="/facts/Straight-line_motion/Vom0QwWe">straight-line motion</a>. The Hoecken linkage is a <a href="/facts/Cognate_linkage/vXMc1Ndm">cognate linkage</a> of the <a href="/facts/Chebyshev_linkage/sFUh12fM">Chebyshev linkage</a> and <a href="/facts/Chebyshev%2527s_Lambda_Mechanism/4BEktY8j">Chebyshev's Lambda Mechanism</a>. </p><p>The linkage was first published in 1926. </p><p>A generalization of the Hoecken linkage is <a href="/facts/Wittgenstein%2527s_rod/29X3YRmj">Wittgenstein's rod</a>. </p>