A Reaper-binder, is a later version of the original reaping machine that includes the binding operation.

The reaper-binder, or binder, was a farm implement that improved upon the reaper.

Straw for this purpose (often wheat straw) is grown specially and harvested using a reaper-binder.

A later improvement showing up in about 1870 was a reaper-binder that cut the grain and tied it into bundles ready for collection and harvesting.

Generally, reapers developed into the 1872 invented reaper-binder, which reaped the crop and bound it into sheaves.

When his firm first experimented with making a combine-harvester, the blades they used on the cutter were smooth-edged like the swap-hook, or scythe, or the blades on a reaper-binder.

Incorporating many of Jacob Behel's innovations as found in his development of the "billhook" knotter in 1864, Appleby later sold the patent around the year 1877 to William Deering who began the manufacturing and exploited the practicability of Appleby's twine knotter into a commercially profitable reaper-binder.