A treadwheel, or treadmill, is a form of

engine An engine or motor is a machine designed to convert one or more forms of energy into mechanical energy. Available energy sources include potential energy (e.g. energy of the Earth's gravitational field as exploited in hydroelectric power ge ...

typically powered by humans. It may resemble a

water wheel A water wheel is a machine for converting the kinetic energy of flowing or falling water into useful forms of power, often in a watermill. A water wheel consists of a large wheel (usually constructed from wood or metal), with numerous b ...

in appearance, and can be worked either by a human treading paddles set into its circumference (treadmill), or by a human or animal standing inside it (treadwheel). These devices are no longer used for power or punishment, and the term " treadmill" has come to mean an exercise machine for running, walking or other exercises in place.

History

Uses of treadwheels included raising water, to power cranes, or grind grain. They were used extensively in the Greek and Roman world, such as in the

reverse overshot water-wheel Frequently used in mines and probably elsewhere (such as agricultural drainage), the reverse overshot water wheel was a Roman innovation to help remove water from the lowest levels of underground workings. It is described by Vitruvius in his work ' ...

used for dewatering purposes. They were widely used in the

Middle Ages In the history of Europe, the Middle Ages or medieval period lasted approximately from the 5th to the late 15th centuries, similarly to the post-classical period of global history. It began with the fall of the Western Roman Empire and ...

to lift the stones in the construction of Gothic cathedrals. There is a literary reference to one in 1225, and one treadwheel crane survives at

Chesterfield, Derbyshire Chesterfield is a market town, market and industrial town in the county of Derbyshire, England. It is north of Derby and south of Sheffield at the confluence of the River Rother, South Yorkshire, Rivers Rother and River Hipper, Hipper. In 2011 ...

and is housed in the Museum. It has been dated to the early 14th century and was housed in the top of the church tower until its removal in 1947. They were used extensively in the

Renaissance The Renaissance ( , ) is a Periodization, period of history and a European cultural movement covering the 15th and 16th centuries. It marked the transition from the Middle Ages to modernity and was characterized by an effort to revive and sur ...

famously by

Brunelleschi Filippo di ser Brunellesco di Lippo Lapi (1377 – 15 April 1446), commonly known as Filippo Brunelleschi ( ; ) and also nicknamed Pippo by Leon Battista Alberti, was an Italian architect, designer, goldsmith and sculptor. He is considered to ...

during the construction of

Florence cathedral Florence Cathedral (), formally the Cathedral of Saint Mary of the Flower ( ), is the cathedral of the Catholic Archdiocese of Florence in Florence, Italy. Commenced in 1296 in the Gothic style to a design of Arnolfo di Cambio and completed b ...

. Penal treadmills were used in

prisons A prison, also known as a jail, gaol, penitentiary, detention center, correction center, correctional facility, or remand center, is a facility where people are imprisoned under the authority of the state, usually as punishment for various cr ...

during the early Victorian period in the UK as a form of punishment. According to ''

The Times ''The Times'' is a British Newspaper#Daily, daily Newspaper#National, national newspaper based in London. It began in 1785 under the title ''The Daily Universal Register'', adopting its modern name on 1 January 1788. ''The Times'' and its si ...

'' in 1827, and reprinted in William Hone's ''Table-Book'' in 1838, the amount prisoners walked per day on average varied, from the equivalent of 6,600 vertical feet at

Lewes Lewes () is the county town of East Sussex, England. The town is the administrative centre of the wider Lewes (district), district of the same name. It lies on the River Ouse, Sussex, River Ouse at the point where the river cuts through the Sou ...

to as much as 17,000 vertical feet in ten hours during the summertime at

Warwick Warwick ( ) is a market town, civil parish and the county town of Warwickshire in the Warwick District in England, adjacent to the River Avon, Warwickshire, River Avon. It is south of Coventry, and south-east of Birmingham. It is adjoined wit ...

gaol."Tread Mills"
in ''The Every-day Book and Table Book; or, Everlasting Calendar of Popular Amusements, Sports, Pastimes, Ceremonies, Manners, Customs, and Events, Each of the Three Hundred and Sixty-Five Days, in Past and Present Times; Forming a Complete History of the Year, Months, and Seasons, and a Perpetual Key to the Almanac, Including Accounts of the Weather, Rules for Health and Conduct, Remarkable and Important Anecdotes, Facts, and Notices, in Chronology, Antiquities, Topography, Biography, Natural History, Art, Science, and General Literature; Derived from the Most Authentic Sources, and Valuable Original Communication, with Poetical Elucidations, for Daily Use and Diversion. Vol III.'', ed. William Hone, (London: 1838), p. 755. In 1902, the British government banned the use of the treadwheel as a form of punishment.

History

See also

References

Further reading