Ramsbottom safety valve

Rams·​bot·​tom safety valve | \ ˈramzˌbätəm- \

Definition of Ramsbottom safety valve

: a safety valve used especially on locomotives in which two valves are pressed down by a single spring attached to a crosspiece prolonged to form a hand lever by which the valves may be eased up to test their adjustment

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History and Etymology for Ramsbottom safety valve

after John Ramsbottom, 19th century British mechanical engineer

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Cite this Entry

“Ramsbottom safety valve.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/Ramsbottom%20safety%20valve. Accessed 8 December 2019.

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to constrict the range or activity of

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