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https://youtu.be/treXm5E94NI Subscribe to Brother Ben X’s Channel: http://bit.ly/1WEFRyG In 1872, McCoy developed an automatic lubricator that spread oil evenly over a train’s engine while it was still moving. The invention allowed trains to run for long periods of time without stopping, which saved both time and money. McCoy was a prolific inventor, securing dozens of…