Edited by Matthew A. McIntosh
Journalist and Historian
A penal treadmill was a treadmill with interior steps set into two cast iron wheels. These drove a shaft that could be used to mill corn, pump water or connect to a large fan for resistance.
Penal treadmills were used in prisons in the early Victorian period in Britain as a method of exerting hard labour, a form of punishment prescribed in the prisoner’s sentence.
The prison treadwheel was a long wooden cylinder with metal framing. It was originally about 6 feet (1.8 m) in diameter. On the exterior of the cylinder were wooden steps about 7.5 inches (19 cm) apart. As the prisoner put his weight on the step it depressed the wheel, and he was forced to step onto the step above, it was an “everlasting staircase”. There would be 18 to 25 positions on the wheel, each separated by a wooden partition so each prisoner had no contact with the adjacent prisoner and saw only the wall in front. They walked in silence for six hours a day, taking 15 minutes on the wheel followed by a 5-minute break.
The prison treadwheel was introduced in 1818 by the British engineer Sir William Cubitt (1785–1861) as a means of usefully occupying convicts in the prisons at Bury St Edmunds and Brixton. There had been simple two-man treadmills in prisons before which were used for raising water and grain preparation: these were on a large scale and for a different purpose. Cubitt observed prisoners lying around in idleness, and opined that it was better “reforming offenders by teaching them habits of industry.” It was intended to be pointless and punish; resistance to the motion was provided by straps and weights. Later when prison philosophy had changed it became acceptable to use the energy to power pumps and corn mills. Forty-four prisons in England adopted this form of hard labour to grind grain. Others remained “grinding the wind”.
By the Prison Act (1865), every male prisoner over 16 sentenced to hard labour had to spend at least three months of his sentence in labour of the first class. This consisted primarily of the tread-mill, or, as an alternative, the crank machine. This consisted of a small wheel, like the wheel of a paddle steamer, and a handle turned by the prisoner made it revolve in a box partially filled with gravel.
In 1895 there were 39 tread-mills and 29 cranks in use in English prisons, and these had diminished to 13 and 5 respectively in 1901. The use of treadwheels was abolished in Britain in 1902 by the Prison Act 1898.
America adopted the treadwheel in 1822, installing one in Bellevue County penitentiary in New York City. A second was erected in 1823, for the cost of $3000 at the Old Newgate Prison in East Granby, CT. A total of only four were built, three of which were quickly abandoned.
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Originally published by Wikipedia, 09.19.2016, under a Creative Commons Attribution-ShareAlike 3.0 Unported license.