caption: The image shows a black and white drawing of a gearbox with a drawing of the gearbox on the left side and a picture of a wheel on the right side. The gearbox is composed of a series of gears and shafts, and the wheel is a circular shape with a center and several spokes radiating outwards. The drawing is detailed and shows the various components of the machine, including the gears, shafts and other components.