An actuating lever is a simple machine that is used to move or control a mechanism by applying force or motion to one end of the lever. The lever is typically a rigid bar that is capable of pivoting around a fixed point called a fulcrum. When force is applied to one end of the lever, the other end moves in response. The length of the lever and the position of the fulcrum can be adjusted to amplify or reduce the amount of force or motion produced by the lever. Actuating levers are commonly used in mechanical systems such as valves, switches, and machines that require manual or automated control. They are simple and reliable components that can provide precise control over the operation of a mechanism.