caption: The image shows a black and white drawing of a gearwheel with a spiral design and text written on it. The gearwheel is composed of several cogs connected by a series of teeth, and the text is written in a bold font. The gears are arranged in a circular pattern, with the center of the wheel being the largest and the outermost. The text is likely a description of the gearwheel, providing further information about its purpose.