Ramsbottom safety valve en · NOUN
Etymology
Named after English mechanical engineer John Ramsbottom.
Meanings
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A kind of tamperproof safety valve for use on locomotives, consisting of two plug-type valves connected by a spring-laden pivoting arm.
The boiler had a large dome over the firebox, inside the cab, surmounted by Ramsbottom safety valves.
1951 April, “Notes and News: Locomotive Notes: London Midland Region”, in Railway Magazine, number 600, page 283:
Forms
| Spelling | Features | Labels | Source |
|---|---|---|---|
| Ramsbottom safety valves | Number=Plur | lexicographic |