Wooden horse (device)

A wooden horse, Spanish donkey or cavaletto squarciapalle, is a torture device, of which there exist two variations; both inflict pain by using the subject's own weight by keeping the legs open, tied with ropes from above, while lowering down the subject. The French called this instrument the Chevalet, from the French diminutive of cheval, horse.

The first variation of the wooden horse is a triangular device with one end of the triangle pointing upward, mounted on a saw-horse like support. The victim is made to straddle the triangular "horse." Weights or additional restraints were often added to keep the victim from falling off. A punishment similar to this called "riding the rail" was used during the American colonial period and later. The victim was often carried through town in this predicament, often in conjunction with the punishment of tarring and feathering. The crotch can be injured and the victim could be left unable to walk without pain.

While the device was designed for women, there are accounts of male victims as well. The Jesuit Relations say that in 1646, a man "was sentenced to make reparation, by the Civil authority, and to mount the Chevalet," and "a public blasphemer, was put on the Chevalet. He acknowledged his fault, saying that he had well deserved punishment, and came of his own accord to confess, that evening or the next day," and that another man "acted at the fort as such a glutton, that he was put on the Chevalet, on which he was ruptured."

The device was used during the American Civil War by Union guards against their Confederate prisoners:

The History Channel documentary Eighty Acres of Hell describes a torture device, "the mule", on which Confederate prisoners were forced to ride until they passed out; many were crippled for life. The device was also used by Union officers on freedmen and women after the Civil War.

In BDSM play the wooden horse is used as a sexual torture device primarily or exclusively on women. Another version often dubbed the wooden pony is made of a single wooden plank supported horizontally from the floor on its side with the thin edge up. This version may have been invented because it is easier to make and more readily available than a triangular shape. The edges may be filed to a blunt point or rounded off to create a less immediately painful variation, or a thinner plank used to provide extra pressure and pain.

...
Wikipedia