Hathorn Davey was a Leeds-based manufacturer of steam engines. The Sun foundry was established in 1846 and made railway engines and pumping machinery until 1870. The premises were taken over in 1872 by Hugh Campbel, Alfred Davis and John Hathorn. They were joined by Henry Davey in 1873 and traded as Hathorn, Davey & Co from 1880. They made marine engines and pumps as well as their pumping engines for mines and waterworks. The firm was taken over by Sulzer

Sulzer

Sülzer is a German surname meaning "from Sülz" and may refer to:* 16505 Sulzer, a main-belt asteroid* Conrad Sulzer Regional Library* Sulzer , a Swiss manufacturer* Alexander Sulzer , German ice hockey player...

s in 1936. The premises closed in the late 1970s when Sulzers moved to a new site.

The horizontal compound differential pumping engine

This was one of their more successful engines. Patented in 1871, a company brochure lists 46 examples of these large engines built up to 1906. The leaflet also gives 32 examples where a smaller version of this engine was installed underground. The differential was a small engine resembling a boiler feed pump which was used to control the speed of the larger engine. The largest concentration of this design was at the Tasmania Gold Mining Co's Beaconsfield

Beaconsfield

Beaconsfield is a market town and civil parish operating as a town council within the South Bucks district in Buckinghamshire, England. It lies northwest of Charing Cross in Central London, and south-east of the county town of Aylesbury...

 mine where three engines were assembled. Each had cylinders of 50 and 108 inch diameter and raised 100,000 galons of water per hour from 2000 ft. Each engine drove two pumprods, each weighing 170 tons and driving 6 pumps. Beaconsfield mine closed in 1914 when the pumps where overwhelmed and re-opened in 1999. At least 7 of these engines were used in the Furness iron mines, 3 at Yarlside and the remainder at Harrison Ainslie

Harrison Ainslie

The firm of Harrison Ainslie & Co. was a British firm of ironmasters and iron ore merchants, selling high quality haematite from their mines on Lindal Moor to smelters in Glasgow, Scotland, South Wales and the Midlands. From a 21st century perspective, they are more interesting as the last...

's pits. There is a surviving example at Cambridge Museum of Technology

Cambridge Museum of Technology

The Cambridge Museum of Technology is an industrial heritage museum situated in Cambridge, UK. The original building, a Scheduled Ancient Monument,housed a sewage pumping station and was built in 1894...

External links

• http://www.kbsm.org/exhibits/triple Kew Bridge steam museum
• http://www.gracesguide.co.uk/Hathorn,_Davey_and_Co Grace's Guide
• http://www.hunslet.org/Industry_%283%29.html Hunslet remembered.
• http://museumvictoria.com.au/collections/items/1348476/steam-pumping-engine-hathorn-davey-co-no-5-pumping-engine-mmbw-spotswood-sewerage-pumping-station-1902 Melborne museum
• http://www.culture24.org.uk/se000225 Cambridge museum of technology
• http://lindal-in-furness.co.uk/Heritage/heritage2.htm Visit of Institute of Mining Engineers to Lowfield and Bercune
• http://www.dmm-gallery.org.uk/transime/u17d-01.htm Detailed account of Stank and Yarlside pumps in 1899 by Jas Davison for the IME.
• http://www.englishheritagearchives.org.uk/SingleResult/Default.aspx?id=205453&t=Quick&cr=Roanhead&io=False&l=all Inside of Violet pit engine house showing the differential engine.