caption: The image shows a drawing of a machine with a gearbox, which is a mechanism used to control the flow of liquids or gases. It has a cylindrical shape with a handle on the side and a spindle at the top. The gearbox is connected to a motor and has several gears and other components that are used to regulate the flow. The drawing also shows the various components of the machine, such as the pistons, valves, and other mechanical components.