Test How Well You Know Black History With This Inventors Quiz

What did Elijah McCoy invent to help the efficiency of trains?

Retry Correct Incorrect Elijah McCoy invented the lubricating cup which distributed oil evenly throughout the engine’s moving parts. This enabled trains to run for long periods of time without having to make continual stops for maintenance.

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What did Elijah McCoy invent to help the efficiency of trains?

• The diesel engine
• The lubricating cup
• The third rail
• The linear motor