Various Mechanisms

1) Ratchet and Pawl mechanism

          This mechanism is used for non reversible rotation. Example: Bicycle rear sprocket.

 2) Pantograph mechanism

This mechanism is used to trace the path similarly on two places with size multiplication or division.

 3) Ackermann steering gear mechanism

This mechanism majorly used in many of the automobiles for steering movements. To convert the rotational motion of the steering spindle to linear motion of the drag rod, rack and pinion mechanism is used. This mechanism works on principle of four bar chain.

4) Locomotive Steam valve mechanism

Steam locomotives used this mechanism to convert the linear motion into rotational motion. This mechanism also does the work of valve actuation in engine.

5) Gear changing mechanism

Majorly gear box actuation is done by ball joint link. This mechanism is used to change the gears for smooth power transmission.

6) Malta Cross movement

This mechanisms were used for the angular rotation with frequent interval. These were used majorly used in automation.

 7) Oval regulation

In this mechanism, the needle is made to travel in oval path so that it can be used for machining the materials in oval profile.