What are the locking mechanisms of a ladder known as?

The locking mechanisms of a ladder are known as pawls. Pawls are mechanical devices that engage with a ratchet or a similar structure to hold the ladder in a secure position, preventing unintended collapse during use. This is crucial for maintaining safety, as it ensures that the ladder remains stable and locked at the desired angle when it is extended or deployed.

The design of pawls allows them to engage when tension is applied in one direction and releases when moved in the opposite direction, which facilitates the easy adjustment of ladder height while maintaining safety. This functionality is essential for firefighters and other professionals who rely on ladders for access in various emergency situations, where stability and safety are paramount.