How many men were needed to operate cradle?

The number of men needed to operate a cradle, a type of mechanical system or device historically used for various purposes, can vary depending on its size and complexity. Typically, a small cradle might require just a few operators, while larger systems could need a team of several men for efficient operation and safety. In historical contexts, the term "cradle" might refer to different devices, each with its own operational requirements. If you have a specific type of cradle in mind, please provide more details for a more accurate answer.