Ratchet Mechanism 18 November 2016, 12:00 Sorry, your browser doesn't support embedded videos, but don't worry, you can download it and watch it with your favorite video player! This mechanism directly converts the continuous rotary motion of a drive shaft into the intermittent linear motion of a rack. To flip the green pawl to change the motion direction of the rack without changing the input motion direction. « previous mechanism Archimedean Drive next mechanism » Spatial Geneva Mechanism load comments Please enable JavaScript to view the comments.