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- Steam Engine Lubricator, 1882 - African American mechanical engineer Elijah McCoy patented this version of his of lubricator in 1882. The many moving parts on a steam locomotive required constant lubrication, and crews had to apply oil regularly. McCoy's lubricator automatically deposited metered amounts of oil, reducing the need for manual lubrication.

- 1882
- Collections - Artifact
Steam Engine Lubricator, 1882
African American mechanical engineer Elijah McCoy patented this version of his of lubricator in 1882. The many moving parts on a steam locomotive required constant lubrication, and crews had to apply oil regularly. McCoy's lubricator automatically deposited metered amounts of oil, reducing the need for manual lubrication.