Assertion: watt's invention | /r/CapableOf | complete the watt engine
Facets:
value: in 1790
type: TEMPORAL
value: virtually
type: MANNER
Source sentences:
text: Four years later his application of the centrifugal governor for automatic control of the speed of the engine, at Boulton’s suggestion, and in 1790 his invention of a pressure gauge, virtually completed the Watt engine.