Horse engine

Rotary motion from the treadmill was first passed to a planetary gear system, and then to a shaft or pulley that could be coupled to another machine.

[1]: 1041 [2][3]: 277–282 Examples of farm machinery powered with a horse engine include gristmills (see horse mill), threshing machines, corn shellers, feed cutters, silo blowers, grain grinders, pumps, and saws such as bucksaws and lumber mill saws.

They could also be used interchangeably with other forms of power, such as a hand crank, stationary engine, portable engine, or the flat belt pulley or PTO shaft of a tractor, which eventually replaced them on most American and European farms.

[citation needed] Today there are still a few modern versions used by Amish people that assist in farm chores and that power machine shops via line shafts.

[citation needed] Many horse-engine houses were built in Britain in the late 18th and early 19th centuries.

In North America, portable horse powers were more usual, with family farms spread far and wide.