Folding Bridge 28 July 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! The bridge is contracted by two windlasses. It is stretched under gravity. Gear forces are very large. « previous mechanism Drive for Car Movable Trivision Billboards next mechanism » Barrel Cam Mechanism load comments Please enable JavaScript to view the comments.