alexmarche5209 alexmarche5209
  • 22-09-2018
  • History
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What did the trained engineer and son of former slaves elijah mccoy invent to improve railroad efficiency?

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DukeMoseti
DukeMoseti DukeMoseti
  • 01-10-2018

a method to automatically lubricate gears

While working for a railroad McCoy invented a lubrication device to make railroad operation more efficient. McCoy trained as an engineer in Scotland as a teenager. He showed a strong interest in mechanics from a young age


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