Anti-Rollback Device, Glossary and Terms, Amusement, Recreation & Ticket Services
List of United States Amusement & Recreation Services, Ticket Service, Guide Service
This is a mechanism used for ratcheting, used on a lift hill or section of a roller coaster. It keeps coasters from rolling backward down a hill and creates a clicking sound that prevents the cars or trains from rolling backwards. This is the device that causes the familiar clicking sound on many lift hills.