Lindley's"Acme" Governor, A Type

Lindley's"Acme" Governor, A Type

In this governor, patented by Mr. H. Lindley in 1884, the usual balls are replaced by two hemispheres capable of swinging outward round two lower centres, but forming, when closed, one sphere. The centrifugal tendency of the two hemispheres is resisted by two helical springs acting directly while the spreading motion of the revolving masses is transmitted by upper links to a central spindle which passes downward to an equilibrium throttle valve placed in the steam pipe below. By means of a sliding block, which can be adjusted while the governor is running, the action of a third spring can be caused to increase or diminish the resistance to centrifugal force, thereby altering the speed of the engine.