Cyrus McCormick, son of Robert McCormick, and the founder of International Harvester in Chicago, Illinois, was the developer of the reaping machine that caused a sensation at the 1851 Great Exhibition. True, McCormick (and Obed Hussey) had probably some knowledge of Patrick Bell’s 1820’s reaper from Scottish immigrants to the US. At the Great Exhibition Bernhard Samuelson (later knighted and for 30 years MP for Banbury) negotiated a license agreement with McCormick to manufacture his reaper in Banbury. Samuelson was by then a major agricultural machinery manufacturer in his own right. The McCormick machine was improved by the addition of a Burgess and Key delivery system whereby the cut corn fell into s series of Archimedean Screw rollers which delivered a continuous and well-formed swath at the side of the machine. This method of discharging the corn was to grow in favour of manually raking the machine clear, and McCormick added revolving rake arms to clear the cut grain from the platform of his reaper. By 1877 Samuelson had progressively improved on the McCormick design and developed the Omnium Self-Raking Reaping Machine which he contracted Ransomes of Suffolk to build for him.