a simple machine consisting of a circular frame with spokes (or a solid disc) that can rotate on a shaft or axle (as in vehicles or other machines)

machine tool for shaping metal or wood; the workpiece turns about a horizontal axis against a fixed tool

a large printing press that exerts pressure vertically

control consisting of a mechanical device for controlling the flow of a fluid

machine tool for shaping metal or wood; the workpiece turns about a horizontal axis against a fixed tool

a large printing press that exerts pressure vertically

control consisting of a mechanical device for controlling the flow of a fluid