This book helps us a students, researchers to develop a transmission system by using ratchet and pawl mechanism. Two different liquids such as oil/water/others can be transmitted by a single power source by augmenting ratchet and pawl mechanism in the prime mover. A mechanism which directs the power from one source to another , by changing the direction of rotation of the main power source and to provide an arrangement which has the capability of doing more than one operation by using a single power source without changing the conventional operation.