caption: The image shows a drawing of a machine with a spiral design, which appears to be a mechanism used to control the flow of liquids or gases. It has a cylindrical shape with a handle on one side and a nozzle on the other. The nozzle is connected to a series of wires and cables, and the wires are connected to the nozzle. The diagram also shows the various components of the mechanism, such as the motor, wires, and other components.