McCoy, Elijah
1844-1929 · Contribution: 1872
Automatic lubricator for steam engines

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Impact on the world
His lubrication device allowed steam engines to be oiled automatically while running, dramatically improving industrial efficiency; the phrase 'the real McCoy' is widely attributed to his reputation for quality.
Life & background
A Canadian-American engineer, McCoy patented the automatic lubricator for steam engines in 1872, a device that kept locomotives, ships, and factory machinery running without the need to stop for manual oiling. He held more than 50 patents over his lifetime.
Sources
- DiversityMD; Smithsonian Lemelson Center
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