Link 1, rotating about fixed axis A, is connected by turning pair C to link 2. Link 2 is connected by a four-motion kinematic pair to link 3. This pair consists of two spherical surfaces a and b which contact flat surfaces d and e of link 3. Link 3 rotates about fixed axis B. The mechanism transmits rotation between any two arbitrarily located axes A and B.
$567$LW,4L$