Smethwick Engine

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Smethwick Engine
Smethwick Engine at ThinkTank Museum.jpg
The engine in steam at Birmingham's Thinktank museum
Origins
Type Watt beam engine
Designer James Watt
Maker Boulton and Watt
DateMay 1779 (1779-05)
Country of origin England
Former operator Birmingham Canal Navigations
PurposePumping water
Measurements
Cylinders1
Bore32 inches (81 cm)
Stroke8 feet (244 cm)
Preservation
Collection Birmingham Museums Trust
Location Thinktank
WorkingYes

The Smethwick Engine is a Watt steam engine made by Boulton and Watt, which was installed near Birmingham, England, and was brought into service in May 1779. Now at Thinktank, Birmingham Science Museum, it is the oldest working steam engine [1] [2] and the oldest working engine in the world. [3] [4]

Contents

History

Originally, it was one of two steam engines used to pump water back up to the 491-foot (149.7 m) summit level of the BCN Old Main Line (Birmingham Canal) canal at Smethwick, not far from the Soho Foundry where it was made. The other engine, also built by Boulton and Watt, was at the other end of the summit level at Spon Lane. In 1804 a second Boulton and Watt engine was added alongside the 1779 engine.

The engines were needed because local water sources were insufficient to supply water to operate the six locks either side of the canal's original summit. The locks could have been avoided if a tunnel had been built, but the ground was too unstable for James Brindley to build a tunnel using the techniques available at the time. In the 1780s, a cutting was constructed by John Smeaton, enabling three of the six locks on each side to be removed.

The Engine Arm Aqueduct Engine Arm Aqueduct west.jpg
The Engine Arm Aqueduct

In the 1820s, Thomas Telford constructed a new canal parallel to the old in a deeper cutting, at the 453 ft (138.1 m) Birmingham Level, creating the largest man-made earthworks in the world at the time. It was spanned by the Galton Bridge. The engine was still needed, despite both these developments, and Thomas Telford constructed the Engine Arm Aqueduct carrying the Engine Arm branch canal over his New Main Line so that coal could still be transported along the arm to feed the Smethwick Engine.

New Smethwick Pumping Station New Smethwick Pumping Station 2.jpg
New Smethwick Pumping Station

In 1892, a replacement engine was built in a new pumping house, now Grade II listed, [5] [6] next to Brasshouse Lane, as the original Smethwick Engine was considered uneconomic to repair; the latter was removed for preservation in 1897–98 [7] to the BCN, later British Waterways, Ocker Hill depot where it remained until acquired by Birmingham City Council. It is now part of the collection of Birmingham Museums and is on display at Thinktank, Birmingham Science Museum at Millennium Point. It is the oldest working engine in the world.

Blue plaque at the site of the Smethwick Engine Blue plaque Smethwick Engine.jpg
Blue plaque at the site of the Smethwick Engine

The engine house was demolished in 1897. Its original site and foundations can still be seen on Bridge Street North in Smethwick, just north of the junction with Rolfe Street. Tours of the site can be arranged through the Galton Valley Canal Heritage Centre which is based in the New Smethwick Pumping Station and regularly opened by Sandwell Museum Service and The Friends of Galton Valley.

The pumping station was featured in an episode of The Water Boatman presented by Alan Herd on the Discovery Shed TV channel in November 2011.[ relevant? ]

Points of interest

Point Coordinates
(Links to map resources)
OS Grid Ref Notes
Smethwick Engine original pumphouse 52°29′52″N1°57′44″W / 52.4977°N 1.9622°W / 52.4977; -1.9622 (Smethwick Engine original pumphouse) SP025889Bridge Street North, Smethwick
Engine Arm Aqueduct 52°29′52″N1°57′59″W / 52.4979°N 1.9665°W / 52.4979; -1.9665 (Engine Arm Aqueduct) SP022889
New Smethwick Pumphouse 52°29′53″N1°58′23″W / 52.4981°N 1.9731°W / 52.4981; -1.9731 (New Smethwick Pumphouse) SP018889Brasshouse Lane, Smethwick

See also

Related Research Articles

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<span class="mw-page-title-main">Soho Foundry</span> Historical factory in Smethwick, England

Soho Foundry is a factory created in 1795 by Matthew Boulton and James Watt and their sons Matthew Robinson Boulton and James Watt Jr. at Smethwick, West Midlands, England, for the manufacture of steam engines. Now owned by Avery Weigh-Tronix, it is used for the manufacture of weighing machines.

<span class="mw-page-title-main">Smethwick</span> Town in West Midlands, England

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<span class="mw-page-title-main">Ketley Canal</span> Canal in Shropshire, England

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<span class="mw-page-title-main">Smethwick Junction (canal)</span> Canal junction in the West Midlands, England

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<span class="mw-page-title-main">Tipton Green and Toll End Canals</span> Defunct canal system near Tipton, West Midlands

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References

  1. "Oldest steam engine". guinnessworldrecords.com. Retrieved 19 March 2015.
  2. "Highlights - Thinktank - Birmingham Museums". birminghammuseums.org.uk. Retrieved 9 March 2015.
  3. Holland, Julian (1 May 2012). Amazing & Extraordinary Facts Steam Age. David & Charles. pp. 18–. ISBN   9781446356197 . Retrieved 9 March 2015.
  4. "Promoting engineering in the Midlands". 27 January 2014. Retrieved 9 March 2015.
  5. Historic England. "Smethwick New Pumping House (Grade II) (1077154)". National Heritage List for England . Retrieved 8 March 2015.
  6. Historic England. "New pumping house, Grade II (1077154)". National Heritage List for England . Retrieved 23 April 2007.
  7. "Weekly notes on Science and Invention" . Sheffield Weekly Telegraph. England. 6 August 1898. Retrieved 1 October 2022 via British Newspaper Archive.