Hammer for Striking Bell 06 October 2018, 19:30 Sorry, your browser doesn't support embedded videos, but don't worry, you can download it and watch it with your favorite video player! Input: green gear rotating continuously. Output: pink oscillating shaft having a flat spring and a hammer. « previous mechanism Milling Triangle With Reuleaux Polygon next mechanism » Friction Ratchet Mechanism load comments Please enable JavaScript to view the comments.