Model of the 1841 McCormick reaper, 1931.
    The wooden model of the McCormick reaper (one-tenth actual size) and the 1853 broadside illustrate how the machine worked: as the horse-drawn reaper rolled along, a revolving reel brought the grain within reach of a vibrating blade that cut the stalks, which then fell onto a platform. In 1847 McCormick moved from Virginia to Chicago and opened a factory that produced thousands of reapers a year for farmers throughout the country and abroad. This model was made to commemorate the reaper's 100th anniversary.  
Model of the 1841 McCormick reaper, 1931

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Copyright 2002 The Chicago Historical Society
 
Image 11 of 15
 
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