The first threshing machine was invented by a Scottish mechanical engineer called Andrew Meikle. The threshing machine was operated to seperate grains from stalks and husks. Before the threshing machine was invented, there had to be many labourers working, in order to seperate the grain. Neverethelss, when the threshing machine came, there was only a need for one labourer. This meant that production of farming was increased, to the extent where only a few people were needed to run a whole farm.