Second Inversion:
In this case, link 2 is fixed and a mechanism known as Oldham's coupling is achieved. This coupling is utilized to connect two shafts that have eccentricity 'ε'. The axes of the two shafts are parallel however displaced by distance ε. The link 4 as well slides in the two slots
: Oldham's Coupling
provided in links 3 and 1. The centre of this link shall move on a circle along diameter equivalent to eccentricity.
