We made a research about different kinds of movable bridges:
We found these nice animations on wikipedia
| Drawbridge / Zugbrücke By Y_tambe - Y_tambe's file, CC BY-SA 3.0, Link |
| Bascule bridge / Klappbrücke By Y_tambe - Y_tambe's file, CC BY 2.5, Link |
| Folding bridge / Faltbrücke By Y_tambe - Y_tambe's file, CC BY 2.5, Link |
| Vertical-lift bridge / Hubbrücke By Y_tambe - Y_tambe's file, CC BY 2.5, Link |
| Table bridge / Hubbrücke By Y_tambe - Y_tambe's file, CC BY-SA 3.0, Link |
| Rectractable bridge (Thrust bridge) / Schubbrücke By Y_tambe - Y_tambe's file, CC BY-SA 3.0, Link |
| Rolling bascule bridge By Y_tambe - Y_tambe's file, CC BY-SA 3.0, Link |
| Tilt bridge Kippbrücke By Y_tambe - Y_tambe's file, CC BY-SA 3.0, Link |