On this date, Elijah McCoy was granted a patent for the steam engine lubricator (U.S. Patent No. 129,843). This device automatically lubricated steam engines, allowing them to run more efficiently without the need for frequent stops for manual lubrication.
McCoy’s invention was so effective that engineers and railroad companies specifically sought out the “real McCoy” to ensure they were getting the highest-quality lubrication device. His work revolutionized industrial machinery and transportation, making him one of the most influential Black inventors in history. ??
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