Figure P2-10 shows Watt's sun and planet drive that he used in his steam engine. The beam 2 is driven in oscillation by the piston of the engine. The planet gear is fixed rigidly to link 3 and its center is guided in the fixed track 1. The output rotation is taken from the sun gear 4. Sketch a kinematic diagram of this mechanism and determine its DOF. Can it be classified by the Barker scheme? If so, what Barker class and subclass is it?
![2193_f1423a95-5589-4eb0-bf49-3b8df9a961cb.png](https://secure.tutorsglobe.com/CMSImages/2193_f1423a95-5589-4eb0-bf49-3b8df9a961cb.png)