A Pawl is a mechanical device used in grade control plate assemblies to control movement. It consists of a hinged arm with a hook at one end. When engaged with notches on a plate assembly, the pawl prevents backward or undesired movement. In a plate assembly, the pawl is positioned adjacent to the notches and can be manually operated. It secures the position of the plate assemblies or allows movement in a single direction. To enable movement in the desired direction, the pawl can disengage or be released. Its purpose is to provide controlled and secure movement in grade control plate assemblies.Attributes:• Enables controlled and secure movement in one direction• Secures positions• Engages with notches to prevent backward or undesired movement• Positioned adjacent to notchesApplications:The Pawl is used in grade control plate assemblies to control movement, secure positions, and enable controlled and secure movement in one direction.