Laxey Wheel

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The Great Laxey Wheel
Lady Isabella Wheel
Laxey Wheel, September 2015.jpg
Laxey Wheel
General information
Type Water wheel
Architectural style Victorian
Location Laxey, Isle of Man
Coordinates 54°14′18.8″N4°24′26.6″W / 54.238556°N 4.407389°W / 54.238556; -4.407389
Owner Manx National Heritage
Dimensions
Diameter72 feet 6 inches (22.10 m)
Design and construction
Architect(s)Robert Casement

The Laxey Wheel (also known as Lady Isabella) is built into the hillside above the village of Laxey in the Isle of Man. It is the largest surviving original working waterwheel in the world. [1] Designed by Robert Casement, the wheel has a 72-foot-6-inch (22.1 m) diameter, is 6 feet (1.8 m) wide and revolves approximately three times per minute.

Contents

History

The wheel was built in 1854 to pump water from the Glen Mooar part of the Great Laxey Mines industrial complex. It was named Lady Isabella after the wife of Lieutenant Governor Charles Hope, who was the island's governor at that time.

The wheel is currently maintained by Manx National Heritage as part of the Great Laxey Wheel & Mines Trail.

The wheel features today on the reverse of the £20 notes issued by the Isle of Man Government. [2]

Technical details

A water-powered wheel was used because the Isle of Man has no supply of coal for a steam-powered pump.

Water from the surrounding area – including a number of local springs and streams – is collected in a cistern, which is above the level of the top of the wheel. A closed pipe connects the cistern to the top of the wheel; thus the water flows up the tower as an inverted syphon. The water falls from the pipe into the buckets (formed from wooden slats on the circumference) and makes the wheel rotate in what is described as the 'reverse' direction: it is a backshot wheel. The crank has a throw of 4 feet (1.2 m) and connects to a counterweight and to a very long rod. This rod runs along the rod viaduct to the pumping shaft 200m away, where the 8 feet (2.4 m) stroke is converted by a T-rocker into a pumping action.

Most of the wheel and rod is made of wood; however key mechanical parts are metal to provide tension and bearing surfaces. The rod has wheels attached at intervals to permit the stroke's motion with minimal friction.

A historical image from around 1900 Laxey Wheel 08676u.jpg
A historical image from around 1900
The triskelion on the front of the wheel is backwards. This happened by accident when the image was being transferred onto the wall; they forgot to reverse it, so it is actually a mirror image of the symbol of Mann. Laxey wheel 1.JPG
The triskelion on the front of the wheel is backwards. This happened by accident when the image was being transferred onto the wall; they forgot to reverse it, so it is actually a mirror image of the symbol of Mann.
The T-rocker, which transfers the horizontal motion of the crank on the waterwheel axle into a vertical motion to work the pumps in the mine. Pump mechanism operated by the Laxey Wheel - geograph.org.uk - 476326.jpg
The T-rocker, which transfers the horizontal motion of the crank on the waterwheel axle into a vertical motion to work the pumps in the mine.

Dimensions

Mine

The mine employed over 600 miners at its peak, producing lead, copper, silver and zinc until it closed in 1929. In 1965 the Manx Government bought the wheel and site. The wheel was restored; in 1989 it was put under the control of Manx National Heritage.

Musical wheel

The wheel has two pieces of music dedicated to it: one penned by Stuart Slack and the other by Helen Barley. Both are entitled The Laxey Wheel.

"Elaborate technical wheel" is of course the Laxey Wheel, Isle of Man (28289508994).jpg

See also

Related Research Articles

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References

  1. The Great Laxey Wheel at Manx National Heritage. Retrieved 26 October 2022
  2. "Isle of Man". Ron Wise's Banknoteworld. Archived from the original on 8 October 2008. Retrieved 30 October 2008.

54°14′18.7″N4°24′26.6″W / 54.238528°N 4.407389°W / 54.238528; -4.407389