| 词条 | John Ramsbottom (engineer) |
| 释义 |
|image = John Ramsbottom engineer.jpg |image_size = |caption = 1879 by William Percy (1820–1893), with a model of his water scoop |name = John Ramsbottom |nationality = English |birth_date = 11 September 1814 |birth_place = Todmorden, Yorkshire, England |death_date = {{d-da|20 May 1897|11 September 1814}} |death_place = |education = |spouse = |parents = |children = |discipline = Mechanical engineering |institutions = |practice_name = |significant_projects = |significant_design = |significant_advance = |significant_awards = }} John Ramsbottom (11 September 1814 – 20 May 1897) was an English mechanical engineer. Born in Todmorden, then on the county border of Yorkshire and Lancashire. Ramsbottom was the son of a steam cotton mill owner. He learned about steam engines, rebuilding his father's and also invented the weft fork (this has also been attributed to James Bullough) that enabled looms to be run at high speed. He also created many inventions for railways. CareerIn 1839 Ramsbottom joined Sharp, Roberts and Company of Manchester who made both industrial stationary engines and steam locomotives, and learned of the latter. He was recommended by Charles Beyer in 1842 to become locomotive superintendent of the Manchester and Birmingham Railway (M&BR). In 1846 the M&BR merged and became the London and North Western Railway (LNWR), and Ramsbottom became District Superintendent North Eastern Division. In 1857 Ramsbottom became locomotive superintendent of the Northern Division (lines north of Rugby), based at Crewe. He is credited with designing and introducing the first water troughs to be used by locomotives to pick up at speed. Locomotive designs{{main|Locomotives of the London and North Western Railway}}
InnovationsIn 1852 he invented the split piston ring, which provided a tight seal of the piston against the cylinder with low friction. His other inventions included the Ramsbottom safety valve,[1] the displacement lubricator, and the water trough. Professional appointmentsRamsbottom became a member of the Institution of Civil Engineers in 1866. He was also president of the Institution of Mechanical Engineers in 1870 and 1871. RetirementRamsbottom retired in 1871, becoming in 1883 a consulting engineer and a director of the Lancashire and Yorkshire Railway (L&YR). He was also a director of Beyer-Peacock. References1. ^For illustrations of Ramsbottom design, see {{cite encyclopedia |year=1908 |title=Safety Valve, Ramsbottom Valves |url=https://books.google.com/books?id=G0cwAAAAMAAJ&pg=RA1-PA15 |encyclopedia=Henley's Encyclopedia of Practical Engineering |publisher=The Normal W. Henley Publishing Company |location=New York |accessdate=2009-06-13}} External links
before=Francis Trevithick| title=Chief Mechanical Engineer of the{{s-npo|pro}}{{s-bef |before=William George Armstrong }}{{s-ttl |title=President of the Institution of Mechanical Engineers |years=1870–1871 }}{{s-aft |after=Carl Wilhelm Siemens }}{{s-end}}{{Authority control}}{{DEFAULTSORT:Ramsbottom, John}} 9 : 1814 births|1897 deaths|Locomotive builders and designers|British people in rail transport|English railway mechanical engineers|London and North Western Railway people|English inventors|People from Todmorden|English mechanical engineers |
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