Theory of Machine
Q3. In a crank and slotted lever quick return motion mechanism, the distance between the fixed centres O and C is 200 driving crank CP is 75 mm pin Q on the slotted lever, 360 mm from the fulcrum O, is connected by a link QR 100 mm long, to a pin R on the line of stroke of R is perpendicular to OC and intersects OC produced at a point 150 mm from C.