Ratchets & Pawls
    Mechanics & Machines

    Ratchets & Pawls

    Forward okay. Backward NOPE. The world's most useful mechanical word: NO.

    Hear that? CLICK CLICK CLICK. Every click is a tiny mechanism doing something genuinely clever. Let's open it up.

    Concepts you just met
    Asymmetric TeethOne-Way RotationSpring-Loaded PawlWrenches & Freewheels