Farm Tools and Agriculture

The Mechanical Reaper and the Grain Harvest

The 19th century reaper designs of Bell, Hussey and McCormick, the rival claims over who invented them, and how mechanical cutting changed grain harvest labor.

On this page
  1. Cutting Grain by Hand
  2. Early Reaper Ideas
  3. Hussey and McCormick
  4. From Reaper to Binder
  5. How Harvest Labor Shifted
  6. Credit and Legacy

Cutting Grain by Hand

Grain has a short window. When wheat or oats ripen, they must be cut within days or the heads shatter and the crop is lost, or rain flattens it. Before machines, cutting meant a line of workers with sickles or scythes. A skilled worker with a scythe could cut a certain area in a day, but the scale of a large field meant hiring many hands, often itinerant laborers who followed the ripening crop. The cutting was followed by raking, binding and stacking, all done by hand.

That limit shaped farm size. A farmer could only plant as much grain as could be harvested in the narrow window, which depended on how many people could be hired or fed. Machines that cut faster promised to lift that limit.

Early Reaper Ideas

Mechanical harvesting is older than the 19th century. Roman writers describe a wheeled device with a comb of teeth pushed by an animal through standing grain in Gaul, and later European inventors tried various designs, though none became widespread. In the early 1800s, interest in machines grew along with the wider spread of other farm inventions.

Patrick Bell, a Scottish minister, built a reaper in 1827 with a pair of scissor-like blades and a revolving reel. It worked and a few copies were made, but it was pushed by horses from behind and was not widely adopted, and Bell did not patent it. Other British and American inventors tried similar ideas.

Hussey and McCormick

The two names most associated with the American reaper are Obed Hussey and Cyrus McCormick. Hussey, from Maryland and Ohio, received a patent in 1833 for a reaper with a cutter bar using a reciprocating blade that moved through guard fingers. McCormick, of Virginia, is said to have demonstrated his machine in 1831 and received a patent in 1834. Cyrus’s father, Robert McCormick, had worked on reapers earlier without success. Jo Anderson, an enslaved man working for the McCormick family, is often mentioned as having helped build and operate the early machines, though the extent of his contribution is not fully documented.

The two inventors competed for years, with field trials, newspaper battles and patent disputes. Historians generally agree that both made important contributions, and that Hussey’s cutter bar was in some respects better. McCormick’s success rested more on his business and marketing skill. He offered guarantees, installment payments and a network of agents, and he moved his manufacturing to Chicago in 1847, close to growing wheat country and with rail and lake transport. The reaper’s success was partly about the sales system as much as the machine.

At the Great Exhibition in London in 1851, McCormick’s reaper drew attention for performing well in trials and helped his reputation in Europe. Other companies also made reapers, and by the 1850s there were many makers and models.

From Reaper to Binder

The first reapers only cut the grain and left it on a platform. Someone still had to rake it off and tie it into bundles. Improvements came steadily:

  • Hand-rake and self-rake reapers swept the cut grain off the platform automatically, reducing the number of workers needed.
  • The Marsh harvester, introduced in the 1850s, carried workers on the machine who bound the sheaves as they rode along.
  • Wire binders and then twine binders from the 1870s mechanically tied the bundles. Wire was soon dropped because fragments could contaminate feed and damage mills, and twine knotters took over.

By the late 19th century, a horse-drawn binder was a standard tool of grain farms in North America, parts of Europe and elsewhere. After binding, the sheaves were stood in shocks to dry, and later gathered for the threshing machine.

How Harvest Labor Shifted

Reapers reduced the hand labor needed per acre, so a farm could cut more with fewer workers. This is sometimes said to have mattered particularly in the 1860s, when many men in the United States were away at war, and farms still managed to bring in large crops. The idea is often repeated, but other factors, including high grain prices, women’s and children’s work and the expansion of farmland, were also important.

The effects on workers varied. In some regions, machines reduced the demand for migrant harvest hands, and in others the larger farms they made possible still needed many people for binding, shocking and hauling. Wage-earning laborers sometimes resisted new machines, though this was more common in the threshing machine disputes in England than for reapers. Farm families gained a way to harvest quickly and avoid depending on a hired crew during the critical weeks.

The reaper also contributed to the westward growth of wheat farming. With railroads to carry grain eastward and reapers to cut it, the prairies could be farmed in large units. The pattern of sod-breaking with new plows, planting and then machine harvest became a template for grain regions in many countries.

Credit and Legacy

The question “who invented the reaper?” has no single answer. Bell, Hussey and McCormick each built working machines; others before and after made contributions, and many details of the contest depend on which sources are used. McCormick’s company later became part of International Harvester, which for much of the 20th century was among the leading farm equipment makers.

What is clear is that reapers were a first step in a longer chain that led to the self-propelled harvester that cuts and threshes in one pass. By removing the pressure of cutting, they shifted the bottleneck to other tasks, which inventors then addressed in turn.

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