Centrifugal governor
WEBCentrifugal governors, also known as "centrifugal regulators" and "flyball governors", were invented by Christiaan Huygens and used to regulate the distance and pressure between millstones in windmills in the 17th century. [1] [2] In 1788, James Watt adapted one to control his steam engine where it regulates the admission of steam into the ...