Combine cereal referred to as the combine, is the first time be able to complete the harvest of cereal crops, threshing, separation of stem and remove residue, and other miscellaneous procedures, direct access to grains from the fields of mechanical harvesting.
18-19 century in Britain, the United States and other countries there have been many people combine the design and development, some of which also received a patent or to create a prototype, but do not have basic practical value, not promote.
In 1831, the U.S. inventor of farmers Mai Keke McCormick (C. McCormik, 1810 -?) Design produced by the first two horses of the traction combine, the efficiency of the harvest more than 30 workers, which is a joint harvest Machine developed by a major breakthrough. Since then, Mai Keke McCormick has been working to improve and combine the manufacturing, production, he combines in short supply. To 1870, he combines a large-scale manufacturing from 40 horses traction, harvesting up to 30 meters width, is also equipped with a wheat harvester on orange packing plant.
